6052 lines
225 KiB
Lua
6052 lines
225 KiB
Lua
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package.preload["fennel.repl"] = package.preload["fennel.repl"] or function(...)
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local utils = require("fennel.utils")
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local parser = require("fennel.parser")
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local compiler = require("fennel.compiler")
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local specials = require("fennel.specials")
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local view = require("fennel.view")
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local unpack = (table.unpack or _G.unpack)
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local function default_read_chunk(parser_state)
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local function _604_()
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if (0 < parser_state["stack-size"]) then
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return ".."
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else
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return ">> "
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end
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end
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io.write(_604_())
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io.flush()
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local input = io.read()
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return (input and (input .. "\n"))
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end
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local function default_on_values(xs)
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io.write(table.concat(xs, "\9"))
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return io.write("\n")
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end
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local function default_on_error(errtype, err, lua_source)
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local function _606_()
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local _605_0 = errtype
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if (_605_0 == "Lua Compile") then
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return ("Bad code generated - likely a bug with the compiler:\n" .. "--- Generated Lua Start ---\n" .. lua_source .. "--- Generated Lua End ---\n")
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elseif (_605_0 == "Runtime") then
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return (compiler.traceback(tostring(err), 4) .. "\n")
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else
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local _ = _605_0
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return ("%s error: %s\n"):format(errtype, tostring(err))
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end
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end
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return io.write(_606_())
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end
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local function splice_save_locals(env, lua_source, scope)
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local saves = nil
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do
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local tbl_17_ = {}
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local i_18_ = #tbl_17_
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for name in pairs(env.___replLocals___) do
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local val_19_ = ("local %s = ___replLocals___['%s']"):format((scope.manglings[name] or name), name)
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if (nil ~= val_19_) then
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i_18_ = (i_18_ + 1)
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tbl_17_[i_18_] = val_19_
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end
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end
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saves = tbl_17_
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end
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local binds = nil
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do
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local tbl_17_ = {}
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local i_18_ = #tbl_17_
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for raw, name in pairs(scope.manglings) do
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local val_19_ = nil
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if not scope.gensyms[name] then
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val_19_ = ("___replLocals___['%s'] = %s"):format(raw, name)
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else
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val_19_ = nil
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end
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if (nil ~= val_19_) then
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i_18_ = (i_18_ + 1)
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tbl_17_[i_18_] = val_19_
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end
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end
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binds = tbl_17_
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end
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local gap = nil
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if lua_source:find("\n") then
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gap = "\n"
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else
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gap = " "
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end
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local function _612_()
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if next(saves) then
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return (table.concat(saves, " ") .. gap)
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else
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return ""
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end
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end
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local function _615_()
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local _613_0, _614_0 = lua_source:match("^(.*)[\n ](return .*)$")
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if ((nil ~= _613_0) and (nil ~= _614_0)) then
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local body = _613_0
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local _return = _614_0
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return (body .. gap .. table.concat(binds, " ") .. gap .. _return)
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else
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local _ = _613_0
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return lua_source
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end
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end
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return (_612_() .. _615_())
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end
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local function completer(env, scope, text)
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local max_items = 2000
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local seen = {}
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local matches = {}
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local input_fragment = text:gsub(".*[%s)(]+", "")
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local stop_looking_3f = false
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local function add_partials(input, tbl, prefix)
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local scope_first_3f = ((tbl == env) or (tbl == env.___replLocals___))
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local tbl_17_ = matches
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local i_18_ = #tbl_17_
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local function _617_()
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if scope_first_3f then
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return scope.manglings
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else
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return tbl
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end
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end
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for k, is_mangled in utils.allpairs(_617_()) do
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if (max_items <= #matches) then break end
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local val_19_ = nil
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do
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local lookup_k = nil
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if scope_first_3f then
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lookup_k = is_mangled
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else
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lookup_k = k
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end
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if ((type(k) == "string") and (input == k:sub(0, #input)) and not seen[k] and ((":" ~= prefix:sub(-1)) or ("function" == type(tbl[lookup_k])))) then
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seen[k] = true
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val_19_ = (prefix .. k)
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else
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val_19_ = nil
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end
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end
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if (nil ~= val_19_) then
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i_18_ = (i_18_ + 1)
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tbl_17_[i_18_] = val_19_
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end
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end
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return tbl_17_
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end
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local function descend(input, tbl, prefix, add_matches, method_3f)
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local splitter = nil
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if method_3f then
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splitter = "^([^:]+):(.*)"
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else
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splitter = "^([^.]+)%.(.*)"
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end
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local head, tail = input:match(splitter)
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local raw_head = (scope.manglings[head] or head)
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if (type(tbl[raw_head]) == "table") then
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stop_looking_3f = true
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if method_3f then
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return add_partials(tail, tbl[raw_head], (prefix .. head .. ":"))
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else
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return add_matches(tail, tbl[raw_head], (prefix .. head))
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end
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end
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end
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local function add_matches(input, tbl, prefix)
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local prefix0 = nil
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if prefix then
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prefix0 = (prefix .. ".")
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else
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prefix0 = ""
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end
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if (not input:find("%.") and input:find(":")) then
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return descend(input, tbl, prefix0, add_matches, true)
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elseif not input:find("%.") then
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return add_partials(input, tbl, prefix0)
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else
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return descend(input, tbl, prefix0, add_matches, false)
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end
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end
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for _, source in ipairs({scope.specials, scope.macros, (env.___replLocals___ or {}), env, env._G}) do
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if stop_looking_3f then break end
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add_matches(input_fragment, source)
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end
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return matches
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end
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local commands = {}
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local function command_3f(input)
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return input:match("^%s*,")
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end
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local function command_docs()
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local _626_
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do
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local tbl_17_ = {}
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local i_18_ = #tbl_17_
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for name, f in pairs(commands) do
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local val_19_ = (" ,%s - %s"):format(name, ((compiler.metadata):get(f, "fnl/docstring") or "undocumented"))
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if (nil ~= val_19_) then
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i_18_ = (i_18_ + 1)
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tbl_17_[i_18_] = val_19_
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end
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end
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_626_ = tbl_17_
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end
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return table.concat(_626_, "\n")
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end
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commands.help = function(_, _0, on_values)
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return on_values({("Welcome to Fennel.\nThis is the REPL where you can enter code to be evaluated.\nYou can also run these repl commands:\n\n" .. command_docs() .. "\n ,exit - Leave the repl.\n\nUse ,doc something to see descriptions for individual macros and special forms.\n\nFor more information about the language, see https://fennel-lang.org/reference")})
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end
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do end (compiler.metadata):set(commands.help, "fnl/docstring", "Show this message.")
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local function reload(module_name, env, on_values, on_error)
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local _628_0, _629_0 = pcall(specials["load-code"]("return require(...)", env), module_name)
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if ((_628_0 == true) and (nil ~= _629_0)) then
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local old = _629_0
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local _ = nil
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package.loaded[module_name] = nil
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_ = nil
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local ok, new = pcall(require, module_name)
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local new0 = nil
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if not ok then
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on_values({new})
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new0 = old
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else
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new0 = new
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end
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specials["macro-loaded"][module_name] = nil
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if ((type(old) == "table") and (type(new0) == "table")) then
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for k, v in pairs(new0) do
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old[k] = v
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end
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for k in pairs(old) do
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if (nil == new0[k]) then
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old[k] = nil
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end
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end
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package.loaded[module_name] = old
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end
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return on_values({"ok"})
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elseif ((_628_0 == false) and (nil ~= _629_0)) then
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local msg = _629_0
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if msg:match("loop or previous error loading module") then
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package.loaded[module_name] = nil
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return reload(module_name, env, on_values, on_error)
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elseif specials["macro-loaded"][module_name] then
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specials["macro-loaded"][module_name] = nil
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return nil
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else
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local function _634_()
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local _633_0 = msg:gsub("\n.*", "")
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return _633_0
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end
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return on_error("Runtime", _634_())
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end
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end
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end
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local function run_command(read, on_error, f)
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local _637_0, _638_0, _639_0 = pcall(read)
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if ((_637_0 == true) and (_638_0 == true) and (nil ~= _639_0)) then
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local val = _639_0
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local _640_0, _641_0 = pcall(f, val)
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if ((_640_0 == false) and (nil ~= _641_0)) then
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local msg = _641_0
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return on_error("Runtime", msg)
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end
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elseif (_637_0 == false) then
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return on_error("Parse", "Couldn't parse input.")
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end
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end
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commands.reload = function(env, read, on_values, on_error)
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local function _644_(_241)
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return reload(tostring(_241), env, on_values, on_error)
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end
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return run_command(read, on_error, _644_)
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end
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do end (compiler.metadata):set(commands.reload, "fnl/docstring", "Reload the specified module.")
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commands.reset = function(env, _, on_values)
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env.___replLocals___ = {}
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return on_values({"ok"})
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end
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do end (compiler.metadata):set(commands.reset, "fnl/docstring", "Erase all repl-local scope.")
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commands.complete = function(env, read, on_values, on_error, scope, chars)
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local function _645_()
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return on_values(completer(env, scope, table.concat(chars):gsub(",complete +", ""):sub(1, -2)))
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end
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return run_command(read, on_error, _645_)
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end
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do end (compiler.metadata):set(commands.complete, "fnl/docstring", "Print all possible completions for a given input symbol.")
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local function apropos_2a(pattern, tbl, prefix, seen, names)
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for name, subtbl in pairs(tbl) do
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if (("string" == type(name)) and (package ~= subtbl)) then
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local _646_0 = type(subtbl)
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if (_646_0 == "function") then
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if ((prefix .. name)):match(pattern) then
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table.insert(names, (prefix .. name))
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end
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elseif (_646_0 == "table") then
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if not seen[subtbl] then
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local _648_
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do
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seen[subtbl] = true
|
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_648_ = seen
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end
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apropos_2a(pattern, subtbl, (prefix .. name:gsub("%.", "/") .. "."), _648_, names)
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end
|
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end
|
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end
|
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end
|
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return names
|
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end
|
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local function apropos(pattern)
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local names = apropos_2a(pattern, package.loaded, "", {}, {})
|
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local tbl_17_ = {}
|
||
|
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local i_18_ = #tbl_17_
|
||
|
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for _, name in ipairs(names) do
|
||
|
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local val_19_ = name:gsub("^_G%.", "")
|
||
|
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if (nil ~= val_19_) then
|
||
|
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i_18_ = (i_18_ + 1)
|
||
|
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tbl_17_[i_18_] = val_19_
|
||
|
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end
|
||
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end
|
||
|
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return tbl_17_
|
||
|
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end
|
||
|
|
commands.apropos = function(_env, read, on_values, on_error, _scope)
|
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|
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local function _653_(_241)
|
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return on_values(apropos(tostring(_241)))
|
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end
|
||
|
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return run_command(read, on_error, _653_)
|
||
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end
|
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|
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do end (compiler.metadata):set(commands.apropos, "fnl/docstring", "Print all functions matching a pattern in all loaded modules.")
|
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|
|
local function apropos_follow_path(path)
|
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|
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local paths = nil
|
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|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for p in path:gmatch("[^%.]+") do
|
||
|
|
local val_19_ = p
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
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end
|
||
|
|
end
|
||
|
|
paths = tbl_17_
|
||
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end
|
||
|
|
local tgt = package.loaded
|
||
|
|
for _, path0 in ipairs(paths) do
|
||
|
|
if (nil == tgt) then break end
|
||
|
|
local _656_
|
||
|
|
do
|
||
|
|
local _655_0 = path0:gsub("%/", ".")
|
||
|
|
_656_ = _655_0
|
||
|
|
end
|
||
|
|
tgt = tgt[_656_]
|
||
|
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end
|
||
|
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return tgt
|
||
|
|
end
|
||
|
|
local function apropos_doc(pattern)
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, path in ipairs(apropos(".*")) do
|
||
|
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local val_19_ = nil
|
||
|
|
do
|
||
|
|
local tgt = apropos_follow_path(path)
|
||
|
|
if ("function" == type(tgt)) then
|
||
|
|
local _657_0 = (compiler.metadata):get(tgt, "fnl/docstring")
|
||
|
|
if (nil ~= _657_0) then
|
||
|
|
local docstr = _657_0
|
||
|
|
val_19_ = (docstr:match(pattern) and path)
|
||
|
|
else
|
||
|
|
val_19_ = nil
|
||
|
|
end
|
||
|
|
else
|
||
|
|
val_19_ = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return tbl_17_
|
||
|
|
end
|
||
|
|
commands["apropos-doc"] = function(_env, read, on_values, on_error, _scope)
|
||
|
|
local function _661_(_241)
|
||
|
|
return on_values(apropos_doc(tostring(_241)))
|
||
|
|
end
|
||
|
|
return run_command(read, on_error, _661_)
|
||
|
|
end
|
||
|
|
do end (compiler.metadata):set(commands["apropos-doc"], "fnl/docstring", "Print all functions that match the pattern in their docs")
|
||
|
|
local function apropos_show_docs(on_values, pattern)
|
||
|
|
for _, path in ipairs(apropos(pattern)) do
|
||
|
|
local tgt = apropos_follow_path(path)
|
||
|
|
if (("function" == type(tgt)) and (compiler.metadata):get(tgt, "fnl/docstring")) then
|
||
|
|
on_values(specials.doc(tgt, path))
|
||
|
|
on_values()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
commands["apropos-show-docs"] = function(_env, read, on_values, on_error)
|
||
|
|
local function _663_(_241)
|
||
|
|
return apropos_show_docs(on_values, tostring(_241))
|
||
|
|
end
|
||
|
|
return run_command(read, on_error, _663_)
|
||
|
|
end
|
||
|
|
do end (compiler.metadata):set(commands["apropos-show-docs"], "fnl/docstring", "Print all documentations matching a pattern in function name")
|
||
|
|
local function resolve(identifier, _664_0, scope)
|
||
|
|
local _665_ = _664_0
|
||
|
|
local env = _665_
|
||
|
|
local ___replLocals___ = _665_["___replLocals___"]
|
||
|
|
local e = nil
|
||
|
|
local function _666_(_241, _242)
|
||
|
|
return (___replLocals___[scope.unmanglings[_242]] or env[_242])
|
||
|
|
end
|
||
|
|
e = setmetatable({}, {__index = _666_})
|
||
|
|
local function _667_(...)
|
||
|
|
local _668_0, _669_0 = ...
|
||
|
|
if ((_668_0 == true) and (nil ~= _669_0)) then
|
||
|
|
local code = _669_0
|
||
|
|
local function _670_(...)
|
||
|
|
local _671_0, _672_0 = ...
|
||
|
|
if ((_671_0 == true) and (nil ~= _672_0)) then
|
||
|
|
local val = _672_0
|
||
|
|
return val
|
||
|
|
else
|
||
|
|
local _ = _671_0
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return _670_(pcall(specials["load-code"](code, e)))
|
||
|
|
else
|
||
|
|
local _ = _668_0
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return _667_(pcall(compiler["compile-string"], tostring(identifier), {scope = scope}))
|
||
|
|
end
|
||
|
|
commands.find = function(env, read, on_values, on_error, scope)
|
||
|
|
local function _675_(_241)
|
||
|
|
local _676_0 = nil
|
||
|
|
do
|
||
|
|
local _677_0 = utils["sym?"](_241)
|
||
|
|
if (nil ~= _677_0) then
|
||
|
|
local _678_0 = resolve(_677_0, env, scope)
|
||
|
|
if (nil ~= _678_0) then
|
||
|
|
_676_0 = debug.getinfo(_678_0)
|
||
|
|
else
|
||
|
|
_676_0 = _678_0
|
||
|
|
end
|
||
|
|
else
|
||
|
|
_676_0 = _677_0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ((_G.type(_676_0) == "table") and (nil ~= _676_0.linedefined) and (nil ~= _676_0.short_src) and (nil ~= _676_0.source) and (_676_0.what == "Lua")) then
|
||
|
|
local line = _676_0.linedefined
|
||
|
|
local src = _676_0.short_src
|
||
|
|
local source = _676_0.source
|
||
|
|
local fnlsrc = nil
|
||
|
|
do
|
||
|
|
local _681_0 = compiler.sourcemap
|
||
|
|
if (nil ~= _681_0) then
|
||
|
|
_681_0 = _681_0[source]
|
||
|
|
end
|
||
|
|
if (nil ~= _681_0) then
|
||
|
|
_681_0 = _681_0[line]
|
||
|
|
end
|
||
|
|
if (nil ~= _681_0) then
|
||
|
|
_681_0 = _681_0[2]
|
||
|
|
end
|
||
|
|
fnlsrc = _681_0
|
||
|
|
end
|
||
|
|
return on_values({string.format("%s:%s", src, (fnlsrc or line))})
|
||
|
|
elseif (_676_0 == nil) then
|
||
|
|
return on_error("Repl", "Unknown value")
|
||
|
|
else
|
||
|
|
local _ = _676_0
|
||
|
|
return on_error("Repl", "No source info")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return run_command(read, on_error, _675_)
|
||
|
|
end
|
||
|
|
do end (compiler.metadata):set(commands.find, "fnl/docstring", "Print the filename and line number for a given function")
|
||
|
|
commands.doc = function(env, read, on_values, on_error, scope)
|
||
|
|
local function _686_(_241)
|
||
|
|
local name = tostring(_241)
|
||
|
|
local path = (utils["multi-sym?"](name) or {name})
|
||
|
|
local ok_3f, target = nil, nil
|
||
|
|
local function _687_()
|
||
|
|
return (utils["get-in"](scope.specials, path) or utils["get-in"](scope.macros, path) or resolve(name, env, scope))
|
||
|
|
end
|
||
|
|
ok_3f, target = pcall(_687_)
|
||
|
|
if ok_3f then
|
||
|
|
return on_values({specials.doc(target, name)})
|
||
|
|
else
|
||
|
|
return on_error("Repl", ("Could not find " .. name .. " for docs."))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return run_command(read, on_error, _686_)
|
||
|
|
end
|
||
|
|
do end (compiler.metadata):set(commands.doc, "fnl/docstring", "Print the docstring and arglist for a function, macro, or special form.")
|
||
|
|
commands.compile = function(env, read, on_values, on_error, scope)
|
||
|
|
local function _689_(_241)
|
||
|
|
local allowedGlobals = specials["current-global-names"](env)
|
||
|
|
local ok_3f, result = pcall(compiler.compile, _241, {allowedGlobals = allowedGlobals, env = env, scope = scope})
|
||
|
|
if ok_3f then
|
||
|
|
return on_values({result})
|
||
|
|
else
|
||
|
|
return on_error("Repl", ("Error compiling expression: " .. result))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return run_command(read, on_error, _689_)
|
||
|
|
end
|
||
|
|
do end (compiler.metadata):set(commands.compile, "fnl/docstring", "compiles the expression into lua and prints the result.")
|
||
|
|
local function load_plugin_commands(plugins)
|
||
|
|
for _, plugin in ipairs((plugins or {})) do
|
||
|
|
for name, f in pairs(plugin) do
|
||
|
|
local _691_0 = name:match("^repl%-command%-(.*)")
|
||
|
|
if (nil ~= _691_0) then
|
||
|
|
local cmd_name = _691_0
|
||
|
|
commands[cmd_name] = (commands[cmd_name] or f)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function run_command_loop(input, read, loop, env, on_values, on_error, scope, chars)
|
||
|
|
local command_name = input:match(",([^%s/]+)")
|
||
|
|
do
|
||
|
|
local _693_0 = commands[command_name]
|
||
|
|
if (nil ~= _693_0) then
|
||
|
|
local command = _693_0
|
||
|
|
command(env, read, on_values, on_error, scope, chars)
|
||
|
|
else
|
||
|
|
local _ = _693_0
|
||
|
|
if ("exit" ~= command_name) then
|
||
|
|
on_values({"Unknown command", command_name})
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ("exit" ~= command_name) then
|
||
|
|
return loop()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function try_readline_21(opts, ok, readline)
|
||
|
|
if ok then
|
||
|
|
if readline.set_readline_name then
|
||
|
|
readline.set_readline_name("fennel")
|
||
|
|
end
|
||
|
|
readline.set_options({histfile = "", keeplines = 1000})
|
||
|
|
opts.readChunk = function(parser_state)
|
||
|
|
local prompt = nil
|
||
|
|
if (0 < parser_state["stack-size"]) then
|
||
|
|
prompt = ".. "
|
||
|
|
else
|
||
|
|
prompt = ">> "
|
||
|
|
end
|
||
|
|
local str = readline.readline(prompt)
|
||
|
|
if str then
|
||
|
|
return (str .. "\n")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local completer0 = nil
|
||
|
|
opts.registerCompleter = function(repl_completer)
|
||
|
|
completer0 = repl_completer
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function repl_completer(text, from, to)
|
||
|
|
if completer0 then
|
||
|
|
readline.set_completion_append_character("")
|
||
|
|
return completer0(text:sub(from, to))
|
||
|
|
else
|
||
|
|
return {}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
readline.set_complete_function(repl_completer)
|
||
|
|
return readline
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function should_use_readline_3f(opts)
|
||
|
|
return (("dumb" ~= os.getenv("TERM")) and not opts.readChunk and not opts.registerCompleter)
|
||
|
|
end
|
||
|
|
local function repl(_3foptions)
|
||
|
|
local old_root_options = utils.root.options
|
||
|
|
local _702_ = utils.copy(_3foptions)
|
||
|
|
local opts = _702_
|
||
|
|
local _3ffennelrc = _702_["fennelrc"]
|
||
|
|
local _ = nil
|
||
|
|
opts.fennelrc = nil
|
||
|
|
_ = nil
|
||
|
|
local readline = (should_use_readline_3f(opts) and try_readline_21(opts, pcall(require, "readline")))
|
||
|
|
local _0 = nil
|
||
|
|
if _3ffennelrc then
|
||
|
|
_0 = _3ffennelrc()
|
||
|
|
else
|
||
|
|
_0 = nil
|
||
|
|
end
|
||
|
|
local env = specials["wrap-env"]((opts.env or rawget(_G, "_ENV") or _G))
|
||
|
|
local callbacks = {env = env, onError = (opts.onError or default_on_error), onValues = (opts.onValues or default_on_values), pp = (opts.pp or view), readChunk = (opts.readChunk or default_read_chunk)}
|
||
|
|
local save_locals_3f = (opts.saveLocals ~= false)
|
||
|
|
local byte_stream, clear_stream = nil, nil
|
||
|
|
local function _704_(_241)
|
||
|
|
return callbacks.readChunk(_241)
|
||
|
|
end
|
||
|
|
byte_stream, clear_stream = parser.granulate(_704_)
|
||
|
|
local chars = {}
|
||
|
|
local read, reset = nil, nil
|
||
|
|
local function _705_(parser_state)
|
||
|
|
local b = byte_stream(parser_state)
|
||
|
|
if b then
|
||
|
|
table.insert(chars, string.char(b))
|
||
|
|
end
|
||
|
|
return b
|
||
|
|
end
|
||
|
|
read, reset = parser.parser(_705_)
|
||
|
|
env.___repl___ = callbacks
|
||
|
|
opts.env, opts.scope = env, compiler["make-scope"]()
|
||
|
|
opts.useMetadata = (opts.useMetadata ~= false)
|
||
|
|
if (opts.allowedGlobals == nil) then
|
||
|
|
opts.allowedGlobals = specials["current-global-names"](env)
|
||
|
|
end
|
||
|
|
if opts.registerCompleter then
|
||
|
|
local function _709_()
|
||
|
|
local _708_0 = opts.scope
|
||
|
|
local function _710_(...)
|
||
|
|
return completer(env, _708_0, ...)
|
||
|
|
end
|
||
|
|
return _710_
|
||
|
|
end
|
||
|
|
opts.registerCompleter(_709_())
|
||
|
|
end
|
||
|
|
load_plugin_commands(opts.plugins)
|
||
|
|
if save_locals_3f then
|
||
|
|
local function newindex(t, k, v)
|
||
|
|
if opts.scope.manglings[k] then
|
||
|
|
return rawset(t, k, v)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
env.___replLocals___ = setmetatable({}, {__newindex = newindex})
|
||
|
|
end
|
||
|
|
local function print_values(...)
|
||
|
|
local vals = {...}
|
||
|
|
local out = {}
|
||
|
|
local pp = callbacks.pp
|
||
|
|
env._, env.__ = vals[1], vals
|
||
|
|
for i = 1, select("#", ...) do
|
||
|
|
table.insert(out, pp(vals[i]))
|
||
|
|
end
|
||
|
|
return callbacks.onValues(out)
|
||
|
|
end
|
||
|
|
local function loop()
|
||
|
|
for k in pairs(chars) do
|
||
|
|
chars[k] = nil
|
||
|
|
end
|
||
|
|
reset()
|
||
|
|
local ok, parser_not_eof_3f, x = pcall(read)
|
||
|
|
local src_string = table.concat(chars)
|
||
|
|
local readline_not_eof_3f = (not readline or (src_string ~= "(null)"))
|
||
|
|
local not_eof_3f = (readline_not_eof_3f and parser_not_eof_3f)
|
||
|
|
if not ok then
|
||
|
|
callbacks.onError("Parse", not_eof_3f)
|
||
|
|
clear_stream()
|
||
|
|
return loop()
|
||
|
|
elseif command_3f(src_string) then
|
||
|
|
return run_command_loop(src_string, read, loop, env, callbacks.onValues, callbacks.onError, opts.scope, chars)
|
||
|
|
else
|
||
|
|
if not_eof_3f then
|
||
|
|
do
|
||
|
|
local _714_0, _715_0 = nil, nil
|
||
|
|
local function _716_()
|
||
|
|
opts["source"] = src_string
|
||
|
|
return opts
|
||
|
|
end
|
||
|
|
_714_0, _715_0 = pcall(compiler.compile, x, _716_())
|
||
|
|
if ((_714_0 == false) and (nil ~= _715_0)) then
|
||
|
|
local msg = _715_0
|
||
|
|
clear_stream()
|
||
|
|
callbacks.onError("Compile", msg)
|
||
|
|
elseif ((_714_0 == true) and (nil ~= _715_0)) then
|
||
|
|
local src = _715_0
|
||
|
|
local src0 = nil
|
||
|
|
if save_locals_3f then
|
||
|
|
src0 = splice_save_locals(env, src, opts.scope)
|
||
|
|
else
|
||
|
|
src0 = src
|
||
|
|
end
|
||
|
|
local _718_0, _719_0 = pcall(specials["load-code"], src0, env)
|
||
|
|
if ((_718_0 == false) and (nil ~= _719_0)) then
|
||
|
|
local msg = _719_0
|
||
|
|
clear_stream()
|
||
|
|
callbacks.onError("Lua Compile", msg, src0)
|
||
|
|
elseif (true and (nil ~= _719_0)) then
|
||
|
|
local _1 = _718_0
|
||
|
|
local chunk = _719_0
|
||
|
|
local function _720_()
|
||
|
|
return print_values(chunk())
|
||
|
|
end
|
||
|
|
local function _721_(...)
|
||
|
|
return callbacks.onError("Runtime", ...)
|
||
|
|
end
|
||
|
|
xpcall(_720_, _721_)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
utils.root.options = old_root_options
|
||
|
|
return loop()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
loop()
|
||
|
|
if readline then
|
||
|
|
return readline.save_history()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return repl
|
||
|
|
end
|
||
|
|
package.preload["fennel.specials"] = package.preload["fennel.specials"] or function(...)
|
||
|
|
local utils = require("fennel.utils")
|
||
|
|
local view = require("fennel.view")
|
||
|
|
local parser = require("fennel.parser")
|
||
|
|
local compiler = require("fennel.compiler")
|
||
|
|
local unpack = (table.unpack or _G.unpack)
|
||
|
|
local SPECIALS = compiler.scopes.global.specials
|
||
|
|
local function wrap_env(env)
|
||
|
|
local function _415_(_, key)
|
||
|
|
if utils["string?"](key) then
|
||
|
|
return env[compiler["global-unmangling"](key)]
|
||
|
|
else
|
||
|
|
return env[key]
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _417_(_, key, value)
|
||
|
|
if utils["string?"](key) then
|
||
|
|
env[compiler["global-unmangling"](key)] = value
|
||
|
|
return nil
|
||
|
|
else
|
||
|
|
env[key] = value
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _419_()
|
||
|
|
local function putenv(k, v)
|
||
|
|
local _420_
|
||
|
|
if utils["string?"](k) then
|
||
|
|
_420_ = compiler["global-unmangling"](k)
|
||
|
|
else
|
||
|
|
_420_ = k
|
||
|
|
end
|
||
|
|
return _420_, v
|
||
|
|
end
|
||
|
|
return next, utils.kvmap(env, putenv), nil
|
||
|
|
end
|
||
|
|
return setmetatable({}, {__index = _415_, __newindex = _417_, __pairs = _419_})
|
||
|
|
end
|
||
|
|
local function current_global_names(_3fenv)
|
||
|
|
local mt = nil
|
||
|
|
do
|
||
|
|
local _422_0 = getmetatable(_3fenv)
|
||
|
|
if ((_G.type(_422_0) == "table") and (nil ~= _422_0.__pairs)) then
|
||
|
|
local mtpairs = _422_0.__pairs
|
||
|
|
local tbl_14_ = {}
|
||
|
|
for k, v in mtpairs(_3fenv) do
|
||
|
|
local k_15_, v_16_ = k, v
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
mt = tbl_14_
|
||
|
|
elseif (_422_0 == nil) then
|
||
|
|
mt = (_3fenv or _G)
|
||
|
|
else
|
||
|
|
mt = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return (mt and utils.kvmap(mt, compiler["global-unmangling"]))
|
||
|
|
end
|
||
|
|
local function load_code(code, _3fenv, _3ffilename)
|
||
|
|
local env = (_3fenv or rawget(_G, "_ENV") or _G)
|
||
|
|
local _425_0, _426_0 = rawget(_G, "setfenv"), rawget(_G, "loadstring")
|
||
|
|
if ((nil ~= _425_0) and (nil ~= _426_0)) then
|
||
|
|
local setfenv = _425_0
|
||
|
|
local loadstring = _426_0
|
||
|
|
local f = assert(loadstring(code, _3ffilename))
|
||
|
|
setfenv(f, env)
|
||
|
|
return f
|
||
|
|
else
|
||
|
|
local _ = _425_0
|
||
|
|
return assert(load(code, _3ffilename, "t", env))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function doc_2a(tgt, name)
|
||
|
|
if not tgt then
|
||
|
|
return (name .. " not found")
|
||
|
|
else
|
||
|
|
local docstring = (((compiler.metadata):get(tgt, "fnl/docstring") or "#<undocumented>")):gsub("\n$", ""):gsub("\n", "\n ")
|
||
|
|
local mt = getmetatable(tgt)
|
||
|
|
if ((type(tgt) == "function") or ((type(mt) == "table") and (type(mt.__call) == "function"))) then
|
||
|
|
local arglist = table.concat(((compiler.metadata):get(tgt, "fnl/arglist") or {"#<unknown-arguments>"}), " ")
|
||
|
|
local _428_
|
||
|
|
if (0 < #arglist) then
|
||
|
|
_428_ = " "
|
||
|
|
else
|
||
|
|
_428_ = ""
|
||
|
|
end
|
||
|
|
return string.format("(%s%s%s)\n %s", name, _428_, arglist, docstring)
|
||
|
|
else
|
||
|
|
return string.format("%s\n %s", name, docstring)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function doc_special(name, arglist, docstring, body_form_3f)
|
||
|
|
compiler.metadata[SPECIALS[name]] = {["fnl/arglist"] = arglist, ["fnl/body-form?"] = body_form_3f, ["fnl/docstring"] = docstring}
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function compile_do(ast, scope, parent, _3fstart)
|
||
|
|
local start = (_3fstart or 2)
|
||
|
|
local len = #ast
|
||
|
|
local sub_scope = compiler["make-scope"](scope)
|
||
|
|
for i = start, len do
|
||
|
|
compiler.compile1(ast[i], sub_scope, parent, {nval = 0})
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
SPECIALS["do"] = function(ast, scope, parent, opts, _3fstart, _3fchunk, _3fsub_scope, _3fpre_syms)
|
||
|
|
local start = (_3fstart or 2)
|
||
|
|
local sub_scope = (_3fsub_scope or compiler["make-scope"](scope))
|
||
|
|
local chunk = (_3fchunk or {})
|
||
|
|
local len = #ast
|
||
|
|
local retexprs = {returned = true}
|
||
|
|
local function compile_body(outer_target, outer_tail, outer_retexprs)
|
||
|
|
if (len < start) then
|
||
|
|
compiler.compile1(nil, sub_scope, chunk, {tail = outer_tail, target = outer_target})
|
||
|
|
else
|
||
|
|
for i = start, len do
|
||
|
|
local subopts = {nval = (((i ~= len) and 0) or opts.nval), tail = (((i == len) and outer_tail) or nil), target = (((i == len) and outer_target) or nil)}
|
||
|
|
local _ = utils["propagate-options"](opts, subopts)
|
||
|
|
local subexprs = compiler.compile1(ast[i], sub_scope, chunk, subopts)
|
||
|
|
if (i ~= len) then
|
||
|
|
compiler["keep-side-effects"](subexprs, parent, nil, ast[i])
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
compiler.emit(parent, chunk, ast)
|
||
|
|
compiler.emit(parent, "end", ast)
|
||
|
|
utils.hook("do", ast, sub_scope)
|
||
|
|
return (outer_retexprs or retexprs)
|
||
|
|
end
|
||
|
|
if (opts.target or (opts.nval == 0) or opts.tail) then
|
||
|
|
compiler.emit(parent, "do", ast)
|
||
|
|
return compile_body(opts.target, opts.tail)
|
||
|
|
elseif opts.nval then
|
||
|
|
local syms = {}
|
||
|
|
for i = 1, opts.nval do
|
||
|
|
local s = ((_3fpre_syms and _3fpre_syms[i]) or compiler.gensym(scope))
|
||
|
|
syms[i] = s
|
||
|
|
retexprs[i] = utils.expr(s, "sym")
|
||
|
|
end
|
||
|
|
local outer_target = table.concat(syms, ", ")
|
||
|
|
compiler.emit(parent, string.format("local %s", outer_target), ast)
|
||
|
|
compiler.emit(parent, "do", ast)
|
||
|
|
return compile_body(outer_target, opts.tail)
|
||
|
|
else
|
||
|
|
local fname = compiler.gensym(scope)
|
||
|
|
local fargs = nil
|
||
|
|
if scope.vararg then
|
||
|
|
fargs = "..."
|
||
|
|
else
|
||
|
|
fargs = ""
|
||
|
|
end
|
||
|
|
compiler.emit(parent, string.format("local function %s(%s)", fname, fargs), ast)
|
||
|
|
return compile_body(nil, true, utils.expr((fname .. "(" .. fargs .. ")"), "statement"))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
doc_special("do", {"..."}, "Evaluate multiple forms; return last value.", true)
|
||
|
|
SPECIALS.values = function(ast, scope, parent)
|
||
|
|
local len = #ast
|
||
|
|
local exprs = {}
|
||
|
|
for i = 2, len do
|
||
|
|
local subexprs = compiler.compile1(ast[i], scope, parent, {nval = ((i ~= len) and 1)})
|
||
|
|
table.insert(exprs, subexprs[1])
|
||
|
|
if (i == len) then
|
||
|
|
for j = 2, #subexprs do
|
||
|
|
table.insert(exprs, subexprs[j])
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return exprs
|
||
|
|
end
|
||
|
|
doc_special("values", {"..."}, "Return multiple values from a function. Must be in tail position.")
|
||
|
|
local function __3estack(stack, tbl)
|
||
|
|
for k, v in pairs(tbl) do
|
||
|
|
table.insert(stack, k)
|
||
|
|
table.insert(stack, v)
|
||
|
|
end
|
||
|
|
return stack
|
||
|
|
end
|
||
|
|
local function literal_3f(val)
|
||
|
|
local res = true
|
||
|
|
if utils["list?"](val) then
|
||
|
|
res = false
|
||
|
|
elseif utils["table?"](val) then
|
||
|
|
local stack = __3estack({}, val)
|
||
|
|
for _, elt in ipairs(stack) do
|
||
|
|
if not res then break end
|
||
|
|
if utils["list?"](elt) then
|
||
|
|
res = false
|
||
|
|
elseif utils["table?"](elt) then
|
||
|
|
__3estack(stack, elt)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return res
|
||
|
|
end
|
||
|
|
local function compile_value(v)
|
||
|
|
local opts = {nval = 1, tail = false}
|
||
|
|
local scope = compiler["make-scope"]()
|
||
|
|
local chunk = {}
|
||
|
|
local _439_ = compiler.compile1(v, scope, chunk, opts)
|
||
|
|
local _440_ = _439_[1]
|
||
|
|
local v0 = _440_[1]
|
||
|
|
return v0
|
||
|
|
end
|
||
|
|
local function insert_meta(meta, k, v)
|
||
|
|
local view_opts = {["escape-newlines?"] = true, ["line-length"] = math.huge, ["one-line?"] = true}
|
||
|
|
compiler.assert((type(k) == "string"), ("expected string keys in metadata table, got: %s"):format(view(k, view_opts)))
|
||
|
|
compiler.assert(literal_3f(v), ("expected literal value in metadata table, got: %s %s"):format(view(k, view_opts), view(v, view_opts)))
|
||
|
|
table.insert(meta, view(k))
|
||
|
|
local function _441_()
|
||
|
|
if ("string" == type(v)) then
|
||
|
|
return view(v, view_opts)
|
||
|
|
else
|
||
|
|
return compile_value(v)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
table.insert(meta, _441_())
|
||
|
|
return meta
|
||
|
|
end
|
||
|
|
local function insert_arglist(meta, arg_list)
|
||
|
|
local view_opts = {["escape-newlines?"] = true, ["line-length"] = math.huge, ["one-line?"] = true}
|
||
|
|
table.insert(meta, "\"fnl/arglist\"")
|
||
|
|
local function _442_(_241)
|
||
|
|
return view(view(_241, view_opts))
|
||
|
|
end
|
||
|
|
table.insert(meta, ("{" .. table.concat(utils.map(arg_list, _442_), ", ") .. "}"))
|
||
|
|
return meta
|
||
|
|
end
|
||
|
|
local function set_fn_metadata(f_metadata, parent, fn_name)
|
||
|
|
if utils.root.options.useMetadata then
|
||
|
|
local meta_fields = {}
|
||
|
|
for k, v in utils.stablepairs(f_metadata) do
|
||
|
|
if (k == "fnl/arglist") then
|
||
|
|
insert_arglist(meta_fields, v)
|
||
|
|
else
|
||
|
|
insert_meta(meta_fields, k, v)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local meta_str = ("require(\"%s\").metadata"):format((utils.root.options.moduleName or "fennel"))
|
||
|
|
return compiler.emit(parent, ("pcall(function() %s:setall(%s, %s) end)"):format(meta_str, fn_name, table.concat(meta_fields, ", ")))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function get_fn_name(ast, scope, fn_name, multi)
|
||
|
|
if (fn_name and (fn_name[1] ~= "nil")) then
|
||
|
|
local _445_
|
||
|
|
if not multi then
|
||
|
|
_445_ = compiler["declare-local"](fn_name, {}, scope, ast)
|
||
|
|
else
|
||
|
|
_445_ = compiler["symbol-to-expression"](fn_name, scope)[1]
|
||
|
|
end
|
||
|
|
return _445_, not multi, 3
|
||
|
|
else
|
||
|
|
return nil, true, 2
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, local_3f, arg_name_list, f_metadata)
|
||
|
|
for i = (index + 1), #ast do
|
||
|
|
compiler.compile1(ast[i], f_scope, f_chunk, {nval = (((i ~= #ast) and 0) or nil), tail = (i == #ast)})
|
||
|
|
end
|
||
|
|
local _448_
|
||
|
|
if local_3f then
|
||
|
|
_448_ = "local function %s(%s)"
|
||
|
|
else
|
||
|
|
_448_ = "%s = function(%s)"
|
||
|
|
end
|
||
|
|
compiler.emit(parent, string.format(_448_, fn_name, table.concat(arg_name_list, ", ")), ast)
|
||
|
|
compiler.emit(parent, f_chunk, ast)
|
||
|
|
compiler.emit(parent, "end", ast)
|
||
|
|
set_fn_metadata(f_metadata, parent, fn_name)
|
||
|
|
utils.hook("fn", ast, f_scope)
|
||
|
|
return utils.expr(fn_name, "sym")
|
||
|
|
end
|
||
|
|
local function compile_anonymous_fn(ast, f_scope, f_chunk, parent, index, arg_name_list, f_metadata, scope)
|
||
|
|
local fn_name = compiler.gensym(scope)
|
||
|
|
return compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, true, arg_name_list, f_metadata)
|
||
|
|
end
|
||
|
|
local function maybe_metadata(ast, pred, handler, mt, index)
|
||
|
|
local index_2a = (index + 1)
|
||
|
|
local index_2a_before_ast_end_3f = (index_2a < #ast)
|
||
|
|
local expr = ast[index_2a]
|
||
|
|
if (index_2a_before_ast_end_3f and pred(expr)) then
|
||
|
|
return handler(mt, expr), index_2a
|
||
|
|
else
|
||
|
|
return mt, index
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function get_function_metadata(ast, arg_list, index)
|
||
|
|
local function _451_(_241, _242)
|
||
|
|
local tbl_14_ = _241
|
||
|
|
for k, v in pairs(_242) do
|
||
|
|
local k_15_, v_16_ = k, v
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return tbl_14_
|
||
|
|
end
|
||
|
|
local function _453_(_241, _242)
|
||
|
|
_241["fnl/docstring"] = _242
|
||
|
|
return _241
|
||
|
|
end
|
||
|
|
return maybe_metadata(ast, utils["kv-table?"], _451_, maybe_metadata(ast, utils["string?"], _453_, {["fnl/arglist"] = arg_list}, index))
|
||
|
|
end
|
||
|
|
SPECIALS.fn = function(ast, scope, parent)
|
||
|
|
local f_scope = nil
|
||
|
|
do
|
||
|
|
local _454_0 = compiler["make-scope"](scope)
|
||
|
|
_454_0["vararg"] = false
|
||
|
|
f_scope = _454_0
|
||
|
|
end
|
||
|
|
local f_chunk = {}
|
||
|
|
local fn_sym = utils["sym?"](ast[2])
|
||
|
|
local multi = (fn_sym and utils["multi-sym?"](fn_sym[1]))
|
||
|
|
local fn_name, local_3f, index = get_fn_name(ast, scope, fn_sym, multi)
|
||
|
|
local arg_list = compiler.assert(utils["table?"](ast[index]), "expected parameters table", ast)
|
||
|
|
compiler.assert((not multi or not multi["multi-sym-method-call"]), ("unexpected multi symbol " .. tostring(fn_name)), fn_sym)
|
||
|
|
local function destructure_arg(arg)
|
||
|
|
local raw = utils.sym(compiler.gensym(scope))
|
||
|
|
local declared = compiler["declare-local"](raw, {}, f_scope, ast)
|
||
|
|
compiler.destructure(arg, raw, ast, f_scope, f_chunk, {declaration = true, nomulti = true, symtype = "arg"})
|
||
|
|
return declared
|
||
|
|
end
|
||
|
|
local function destructure_amp(i)
|
||
|
|
compiler.assert((i == (#arg_list - 1)), "expected rest argument before last parameter", arg_list[(i + 1)], arg_list)
|
||
|
|
f_scope.vararg = true
|
||
|
|
compiler.destructure(arg_list[#arg_list], {utils.varg()}, ast, f_scope, f_chunk, {declaration = true, nomulti = true, symtype = "arg"})
|
||
|
|
return "..."
|
||
|
|
end
|
||
|
|
local function get_arg_name(arg, i)
|
||
|
|
if f_scope.vararg then
|
||
|
|
return nil
|
||
|
|
elseif utils["varg?"](arg) then
|
||
|
|
compiler.assert((arg == arg_list[#arg_list]), "expected vararg as last parameter", ast)
|
||
|
|
f_scope.vararg = true
|
||
|
|
return "..."
|
||
|
|
elseif utils["sym?"](arg, "&") then
|
||
|
|
return destructure_amp(i)
|
||
|
|
elseif (utils["sym?"](arg) and (tostring(arg) ~= "nil") and not utils["multi-sym?"](tostring(arg))) then
|
||
|
|
return compiler["declare-local"](arg, {}, f_scope, ast)
|
||
|
|
elseif utils["table?"](arg) then
|
||
|
|
return destructure_arg(arg)
|
||
|
|
else
|
||
|
|
return compiler.assert(false, ("expected symbol for function parameter: %s"):format(tostring(arg)), ast[index])
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local arg_name_list = nil
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for i, a in ipairs(arg_list) do
|
||
|
|
local val_19_ = get_arg_name(a, i)
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
arg_name_list = tbl_17_
|
||
|
|
end
|
||
|
|
local f_metadata, index0 = get_function_metadata(ast, arg_list, index)
|
||
|
|
if fn_name then
|
||
|
|
return compile_named_fn(ast, f_scope, f_chunk, parent, index0, fn_name, local_3f, arg_name_list, f_metadata)
|
||
|
|
else
|
||
|
|
return compile_anonymous_fn(ast, f_scope, f_chunk, parent, index0, arg_name_list, f_metadata, scope)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
doc_special("fn", {"name?", "args", "docstring?", "..."}, "Function syntax. May optionally include a name and docstring or a metadata table.\nIf a name is provided, the function will be bound in the current scope.\nWhen called with the wrong number of args, excess args will be discarded\nand lacking args will be nil, use lambda for arity-checked functions.", true)
|
||
|
|
SPECIALS.lua = function(ast, _, parent)
|
||
|
|
compiler.assert(((#ast == 2) or (#ast == 3)), "expected 1 or 2 arguments", ast)
|
||
|
|
local _459_
|
||
|
|
do
|
||
|
|
local _458_0 = utils["sym?"](ast[2])
|
||
|
|
if (nil ~= _458_0) then
|
||
|
|
_459_ = tostring(_458_0)
|
||
|
|
else
|
||
|
|
_459_ = _458_0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ("nil" ~= _459_) then
|
||
|
|
table.insert(parent, {ast = ast, leaf = tostring(ast[2])})
|
||
|
|
end
|
||
|
|
local _463_
|
||
|
|
do
|
||
|
|
local _462_0 = utils["sym?"](ast[3])
|
||
|
|
if (nil ~= _462_0) then
|
||
|
|
_463_ = tostring(_462_0)
|
||
|
|
else
|
||
|
|
_463_ = _462_0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ("nil" ~= _463_) then
|
||
|
|
return tostring(ast[3])
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function dot(ast, scope, parent)
|
||
|
|
compiler.assert((1 < #ast), "expected table argument", ast)
|
||
|
|
local len = #ast
|
||
|
|
local _466_ = compiler.compile1(ast[2], scope, parent, {nval = 1})
|
||
|
|
local lhs = _466_[1]
|
||
|
|
if (len == 2) then
|
||
|
|
return tostring(lhs)
|
||
|
|
else
|
||
|
|
local indices = {}
|
||
|
|
for i = 3, len do
|
||
|
|
local index = ast[i]
|
||
|
|
if (utils["string?"](index) and utils["valid-lua-identifier?"](index)) then
|
||
|
|
table.insert(indices, ("." .. index))
|
||
|
|
else
|
||
|
|
local _467_ = compiler.compile1(index, scope, parent, {nval = 1})
|
||
|
|
local index0 = _467_[1]
|
||
|
|
table.insert(indices, ("[" .. tostring(index0) .. "]"))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if (tostring(lhs):find("[{\"0-9]") or ("nil" == tostring(lhs))) then
|
||
|
|
return ("(" .. tostring(lhs) .. ")" .. table.concat(indices))
|
||
|
|
else
|
||
|
|
return (tostring(lhs) .. table.concat(indices))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS["."] = dot
|
||
|
|
doc_special(".", {"tbl", "key1", "..."}, "Look up key1 in tbl table. If more args are provided, do a nested lookup.")
|
||
|
|
SPECIALS.global = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 3), "expected name and value", ast)
|
||
|
|
compiler.destructure(ast[2], ast[3], ast, scope, parent, {forceglobal = true, nomulti = true, symtype = "global"})
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
doc_special("global", {"name", "val"}, "Set name as a global with val.")
|
||
|
|
SPECIALS.set = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 3), "expected name and value", ast)
|
||
|
|
compiler.destructure(ast[2], ast[3], ast, scope, parent, {noundef = true, symtype = "set"})
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
doc_special("set", {"name", "val"}, "Set a local variable to a new value. Only works on locals using var.")
|
||
|
|
local function set_forcibly_21_2a(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 3), "expected name and value", ast)
|
||
|
|
compiler.destructure(ast[2], ast[3], ast, scope, parent, {forceset = true, symtype = "set"})
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
SPECIALS["set-forcibly!"] = set_forcibly_21_2a
|
||
|
|
local function local_2a(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 3), "expected name and value", ast)
|
||
|
|
compiler.destructure(ast[2], ast[3], ast, scope, parent, {declaration = true, nomulti = true, symtype = "local"})
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
SPECIALS["local"] = local_2a
|
||
|
|
doc_special("local", {"name", "val"}, "Introduce new top-level immutable local.")
|
||
|
|
SPECIALS.var = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 3), "expected name and value", ast)
|
||
|
|
compiler.destructure(ast[2], ast[3], ast, scope, parent, {declaration = true, isvar = true, nomulti = true, symtype = "var"})
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
doc_special("var", {"name", "val"}, "Introduce new mutable local.")
|
||
|
|
local function kv_3f(t)
|
||
|
|
local _471_
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for k in pairs(t) do
|
||
|
|
local val_19_ = nil
|
||
|
|
if ("number" ~= type(k)) then
|
||
|
|
val_19_ = k
|
||
|
|
else
|
||
|
|
val_19_ = nil
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_471_ = tbl_17_
|
||
|
|
end
|
||
|
|
return _471_[1]
|
||
|
|
end
|
||
|
|
SPECIALS.let = function(ast, scope, parent, opts)
|
||
|
|
local bindings = ast[2]
|
||
|
|
local pre_syms = {}
|
||
|
|
compiler.assert((utils["table?"](bindings) and not kv_3f(bindings)), "expected binding sequence", bindings)
|
||
|
|
compiler.assert(((#bindings % 2) == 0), "expected even number of name/value bindings", ast[2])
|
||
|
|
compiler.assert((3 <= #ast), "expected body expression", ast[1])
|
||
|
|
for _ = 1, (opts.nval or 0) do
|
||
|
|
table.insert(pre_syms, compiler.gensym(scope))
|
||
|
|
end
|
||
|
|
local sub_scope = compiler["make-scope"](scope)
|
||
|
|
local sub_chunk = {}
|
||
|
|
for i = 1, #bindings, 2 do
|
||
|
|
compiler.destructure(bindings[i], bindings[(i + 1)], ast, sub_scope, sub_chunk, {declaration = true, nomulti = true, symtype = "let"})
|
||
|
|
end
|
||
|
|
return SPECIALS["do"](ast, scope, parent, opts, 3, sub_chunk, sub_scope, pre_syms)
|
||
|
|
end
|
||
|
|
doc_special("let", {"[name1 val1 ... nameN valN]", "..."}, "Introduces a new scope in which a given set of local bindings are used.", true)
|
||
|
|
local function get_prev_line(parent)
|
||
|
|
if ("table" == type(parent)) then
|
||
|
|
return get_prev_line((parent.leaf or parent[#parent]))
|
||
|
|
else
|
||
|
|
return (parent or "")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function disambiguate_3f(rootstr, parent)
|
||
|
|
local function _476_()
|
||
|
|
local _475_0 = get_prev_line(parent)
|
||
|
|
if (nil ~= _475_0) then
|
||
|
|
local prev_line = _475_0
|
||
|
|
return prev_line:match("%)$")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return (rootstr:match("^{") or rootstr:match("^%(") or _476_())
|
||
|
|
end
|
||
|
|
SPECIALS.tset = function(ast, scope, parent)
|
||
|
|
compiler.assert((3 < #ast), "expected table, key, and value arguments", ast)
|
||
|
|
local root = compiler.compile1(ast[2], scope, parent, {nval = 1})[1]
|
||
|
|
local keys = {}
|
||
|
|
for i = 3, (#ast - 1) do
|
||
|
|
local _478_ = compiler.compile1(ast[i], scope, parent, {nval = 1})
|
||
|
|
local key = _478_[1]
|
||
|
|
table.insert(keys, tostring(key))
|
||
|
|
end
|
||
|
|
local value = compiler.compile1(ast[#ast], scope, parent, {nval = 1})[1]
|
||
|
|
local rootstr = tostring(root)
|
||
|
|
local fmtstr = nil
|
||
|
|
if disambiguate_3f(rootstr, parent) then
|
||
|
|
fmtstr = "do end (%s)[%s] = %s"
|
||
|
|
else
|
||
|
|
fmtstr = "%s[%s] = %s"
|
||
|
|
end
|
||
|
|
return compiler.emit(parent, fmtstr:format(rootstr, table.concat(keys, "]["), tostring(value)), ast)
|
||
|
|
end
|
||
|
|
doc_special("tset", {"tbl", "key1", "...", "keyN", "val"}, "Set the value of a table field. Can take additional keys to set\nnested values, but all parents must contain an existing table.")
|
||
|
|
local function calculate_target(scope, opts)
|
||
|
|
if not (opts.tail or opts.target or opts.nval) then
|
||
|
|
return "iife", true, nil
|
||
|
|
elseif (opts.nval and (opts.nval ~= 0) and not opts.target) then
|
||
|
|
local accum = {}
|
||
|
|
local target_exprs = {}
|
||
|
|
for i = 1, opts.nval do
|
||
|
|
local s = compiler.gensym(scope)
|
||
|
|
accum[i] = s
|
||
|
|
target_exprs[i] = utils.expr(s, "sym")
|
||
|
|
end
|
||
|
|
return "target", opts.tail, table.concat(accum, ", "), target_exprs
|
||
|
|
else
|
||
|
|
return "none", opts.tail, opts.target
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function if_2a(ast, scope, parent, opts)
|
||
|
|
compiler.assert((2 < #ast), "expected condition and body", ast)
|
||
|
|
local do_scope = compiler["make-scope"](scope)
|
||
|
|
local branches = {}
|
||
|
|
local wrapper, inner_tail, inner_target, target_exprs = calculate_target(scope, opts)
|
||
|
|
local body_opts = {nval = opts.nval, tail = inner_tail, target = inner_target}
|
||
|
|
local function compile_body(i)
|
||
|
|
local chunk = {}
|
||
|
|
local cscope = compiler["make-scope"](do_scope)
|
||
|
|
compiler["keep-side-effects"](compiler.compile1(ast[i], cscope, chunk, body_opts), chunk, nil, ast[i])
|
||
|
|
return {chunk = chunk, scope = cscope}
|
||
|
|
end
|
||
|
|
if (1 == (#ast % 2)) then
|
||
|
|
table.insert(ast, utils.sym("nil"))
|
||
|
|
end
|
||
|
|
for i = 2, (#ast - 1), 2 do
|
||
|
|
local condchunk = {}
|
||
|
|
local res = compiler.compile1(ast[i], do_scope, condchunk, {nval = 1})
|
||
|
|
local cond = res[1]
|
||
|
|
local branch = compile_body((i + 1))
|
||
|
|
branch.cond = cond
|
||
|
|
branch.condchunk = condchunk
|
||
|
|
branch.nested = ((i ~= 2) and (next(condchunk, nil) == nil))
|
||
|
|
table.insert(branches, branch)
|
||
|
|
end
|
||
|
|
local else_branch = compile_body(#ast)
|
||
|
|
local s = compiler.gensym(scope)
|
||
|
|
local buffer = {}
|
||
|
|
local last_buffer = buffer
|
||
|
|
for i = 1, #branches do
|
||
|
|
local branch = branches[i]
|
||
|
|
local fstr = nil
|
||
|
|
if not branch.nested then
|
||
|
|
fstr = "if %s then"
|
||
|
|
else
|
||
|
|
fstr = "elseif %s then"
|
||
|
|
end
|
||
|
|
local cond = tostring(branch.cond)
|
||
|
|
local cond_line = fstr:format(cond)
|
||
|
|
if branch.nested then
|
||
|
|
compiler.emit(last_buffer, branch.condchunk, ast)
|
||
|
|
else
|
||
|
|
for _, v in ipairs(branch.condchunk) do
|
||
|
|
compiler.emit(last_buffer, v, ast)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
compiler.emit(last_buffer, cond_line, ast)
|
||
|
|
compiler.emit(last_buffer, branch.chunk, ast)
|
||
|
|
if (i == #branches) then
|
||
|
|
compiler.emit(last_buffer, "else", ast)
|
||
|
|
compiler.emit(last_buffer, else_branch.chunk, ast)
|
||
|
|
compiler.emit(last_buffer, "end", ast)
|
||
|
|
elseif not branches[(i + 1)].nested then
|
||
|
|
local next_buffer = {}
|
||
|
|
compiler.emit(last_buffer, "else", ast)
|
||
|
|
compiler.emit(last_buffer, next_buffer, ast)
|
||
|
|
compiler.emit(last_buffer, "end", ast)
|
||
|
|
last_buffer = next_buffer
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if (wrapper == "iife") then
|
||
|
|
local iifeargs = ((scope.vararg and "...") or "")
|
||
|
|
compiler.emit(parent, ("local function %s(%s)"):format(tostring(s), iifeargs), ast)
|
||
|
|
compiler.emit(parent, buffer, ast)
|
||
|
|
compiler.emit(parent, "end", ast)
|
||
|
|
return utils.expr(("%s(%s)"):format(tostring(s), iifeargs), "statement")
|
||
|
|
elseif (wrapper == "none") then
|
||
|
|
for i = 1, #buffer do
|
||
|
|
compiler.emit(parent, buffer[i], ast)
|
||
|
|
end
|
||
|
|
return {returned = true}
|
||
|
|
else
|
||
|
|
compiler.emit(parent, ("local %s"):format(inner_target), ast)
|
||
|
|
for i = 1, #buffer do
|
||
|
|
compiler.emit(parent, buffer[i], ast)
|
||
|
|
end
|
||
|
|
return target_exprs
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS["if"] = if_2a
|
||
|
|
doc_special("if", {"cond1", "body1", "...", "condN", "bodyN"}, "Conditional form.\nTakes any number of condition/body pairs and evaluates the first body where\nthe condition evaluates to truthy. Similar to cond in other lisps.")
|
||
|
|
local function remove_until_condition(bindings)
|
||
|
|
local last_item = bindings[(#bindings - 1)]
|
||
|
|
if ((utils["sym?"](last_item) and (tostring(last_item) == "&until")) or ("until" == last_item)) then
|
||
|
|
table.remove(bindings, (#bindings - 1))
|
||
|
|
return table.remove(bindings)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function compile_until(condition, scope, chunk)
|
||
|
|
if condition then
|
||
|
|
local _487_ = compiler.compile1(condition, scope, chunk, {nval = 1})
|
||
|
|
local condition_lua = _487_[1]
|
||
|
|
return compiler.emit(chunk, ("if %s then break end"):format(tostring(condition_lua)), utils.expr(condition, "expression"))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS.each = function(ast, scope, parent)
|
||
|
|
compiler.assert((3 <= #ast), "expected body expression", ast[1])
|
||
|
|
compiler.assert(utils["table?"](ast[2]), "expected binding table", ast)
|
||
|
|
compiler.assert((2 <= #ast[2]), "expected binding and iterator", ast)
|
||
|
|
local binding = setmetatable(utils.copy(ast[2]), getmetatable(ast[2]))
|
||
|
|
local until_condition = remove_until_condition(binding)
|
||
|
|
local iter = table.remove(binding, #binding)
|
||
|
|
local destructures = {}
|
||
|
|
local new_manglings = {}
|
||
|
|
local sub_scope = compiler["make-scope"](scope)
|
||
|
|
local function destructure_binding(v)
|
||
|
|
compiler.assert(not utils["string?"](v), ("unexpected iterator clause " .. tostring(v)), binding)
|
||
|
|
if utils["sym?"](v) then
|
||
|
|
return compiler["declare-local"](v, {}, sub_scope, ast, new_manglings)
|
||
|
|
else
|
||
|
|
local raw = utils.sym(compiler.gensym(sub_scope))
|
||
|
|
destructures[raw] = v
|
||
|
|
return compiler["declare-local"](raw, {}, sub_scope, ast)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local bind_vars = utils.map(binding, destructure_binding)
|
||
|
|
local vals = compiler.compile1(iter, scope, parent)
|
||
|
|
local val_names = utils.map(vals, tostring)
|
||
|
|
local chunk = {}
|
||
|
|
compiler.emit(parent, ("for %s in %s do"):format(table.concat(bind_vars, ", "), table.concat(val_names, ", ")), ast)
|
||
|
|
for raw, args in utils.stablepairs(destructures) do
|
||
|
|
compiler.destructure(args, raw, ast, sub_scope, chunk, {declaration = true, nomulti = true, symtype = "each"})
|
||
|
|
end
|
||
|
|
compiler["apply-manglings"](sub_scope, new_manglings, ast)
|
||
|
|
compile_until(until_condition, sub_scope, chunk)
|
||
|
|
compile_do(ast, sub_scope, chunk, 3)
|
||
|
|
compiler.emit(parent, chunk, ast)
|
||
|
|
return compiler.emit(parent, "end", ast)
|
||
|
|
end
|
||
|
|
doc_special("each", {"[key value (iterator)]", "..."}, "Runs the body once for each set of values provided by the given iterator.\nMost commonly used with ipairs for sequential tables or pairs for undefined\norder, but can be used with any iterator.", true)
|
||
|
|
local function while_2a(ast, scope, parent)
|
||
|
|
local len1 = #parent
|
||
|
|
local condition = compiler.compile1(ast[2], scope, parent, {nval = 1})[1]
|
||
|
|
local len2 = #parent
|
||
|
|
local sub_chunk = {}
|
||
|
|
if (len1 ~= len2) then
|
||
|
|
for i = (len1 + 1), len2 do
|
||
|
|
table.insert(sub_chunk, parent[i])
|
||
|
|
parent[i] = nil
|
||
|
|
end
|
||
|
|
compiler.emit(parent, "while true do", ast)
|
||
|
|
compiler.emit(sub_chunk, ("if not %s then break end"):format(condition[1]), ast)
|
||
|
|
else
|
||
|
|
compiler.emit(parent, ("while " .. tostring(condition) .. " do"), ast)
|
||
|
|
end
|
||
|
|
compile_do(ast, compiler["make-scope"](scope), sub_chunk, 3)
|
||
|
|
compiler.emit(parent, sub_chunk, ast)
|
||
|
|
return compiler.emit(parent, "end", ast)
|
||
|
|
end
|
||
|
|
SPECIALS["while"] = while_2a
|
||
|
|
doc_special("while", {"condition", "..."}, "The classic while loop. Evaluates body until a condition is non-truthy.", true)
|
||
|
|
local function for_2a(ast, scope, parent)
|
||
|
|
compiler.assert(utils["table?"](ast[2]), "expected binding table", ast)
|
||
|
|
local ranges = setmetatable(utils.copy(ast[2]), getmetatable(ast[2]))
|
||
|
|
local until_condition = remove_until_condition(ranges)
|
||
|
|
local binding_sym = table.remove(ranges, 1)
|
||
|
|
local sub_scope = compiler["make-scope"](scope)
|
||
|
|
local range_args = {}
|
||
|
|
local chunk = {}
|
||
|
|
compiler.assert(utils["sym?"](binding_sym), ("unable to bind %s %s"):format(type(binding_sym), tostring(binding_sym)), ast[2])
|
||
|
|
compiler.assert((3 <= #ast), "expected body expression", ast[1])
|
||
|
|
compiler.assert((#ranges <= 3), "unexpected arguments", ranges)
|
||
|
|
compiler.assert((1 < #ranges), "expected range to include start and stop", ranges)
|
||
|
|
for i = 1, math.min(#ranges, 3) do
|
||
|
|
range_args[i] = tostring(compiler.compile1(ranges[i], scope, parent, {nval = 1})[1])
|
||
|
|
end
|
||
|
|
compiler.emit(parent, ("for %s = %s do"):format(compiler["declare-local"](binding_sym, {}, sub_scope, ast), table.concat(range_args, ", ")), ast)
|
||
|
|
compile_until(until_condition, sub_scope, chunk)
|
||
|
|
compile_do(ast, sub_scope, chunk, 3)
|
||
|
|
compiler.emit(parent, chunk, ast)
|
||
|
|
return compiler.emit(parent, "end", ast)
|
||
|
|
end
|
||
|
|
SPECIALS["for"] = for_2a
|
||
|
|
doc_special("for", {"[index start stop step?]", "..."}, "Numeric loop construct.\nEvaluates body once for each value between start and stop (inclusive).", true)
|
||
|
|
local function native_method_call(ast, _scope, _parent, target, args)
|
||
|
|
local _491_ = ast
|
||
|
|
local _ = _491_[1]
|
||
|
|
local _0 = _491_[2]
|
||
|
|
local method_string = _491_[3]
|
||
|
|
local call_string = nil
|
||
|
|
if ((target.type == "literal") or (target.type == "varg") or (target.type == "expression")) then
|
||
|
|
call_string = "(%s):%s(%s)"
|
||
|
|
else
|
||
|
|
call_string = "%s:%s(%s)"
|
||
|
|
end
|
||
|
|
return utils.expr(string.format(call_string, tostring(target), method_string, table.concat(args, ", ")), "statement")
|
||
|
|
end
|
||
|
|
local function nonnative_method_call(ast, scope, parent, target, args)
|
||
|
|
local method_string = tostring(compiler.compile1(ast[3], scope, parent, {nval = 1})[1])
|
||
|
|
local args0 = {tostring(target), unpack(args)}
|
||
|
|
return utils.expr(string.format("%s[%s](%s)", tostring(target), method_string, table.concat(args0, ", ")), "statement")
|
||
|
|
end
|
||
|
|
local function double_eval_protected_method_call(ast, scope, parent, target, args)
|
||
|
|
local method_string = tostring(compiler.compile1(ast[3], scope, parent, {nval = 1})[1])
|
||
|
|
local call = "(function(tgt, m, ...) return tgt[m](tgt, ...) end)(%s, %s)"
|
||
|
|
table.insert(args, 1, method_string)
|
||
|
|
return utils.expr(string.format(call, tostring(target), table.concat(args, ", ")), "statement")
|
||
|
|
end
|
||
|
|
local function method_call(ast, scope, parent)
|
||
|
|
compiler.assert((2 < #ast), "expected at least 2 arguments", ast)
|
||
|
|
local _493_ = compiler.compile1(ast[2], scope, parent, {nval = 1})
|
||
|
|
local target = _493_[1]
|
||
|
|
local args = {}
|
||
|
|
for i = 4, #ast do
|
||
|
|
local subexprs = nil
|
||
|
|
local _494_
|
||
|
|
if (i ~= #ast) then
|
||
|
|
_494_ = 1
|
||
|
|
else
|
||
|
|
_494_ = nil
|
||
|
|
end
|
||
|
|
subexprs = compiler.compile1(ast[i], scope, parent, {nval = _494_})
|
||
|
|
utils.map(subexprs, tostring, args)
|
||
|
|
end
|
||
|
|
if (utils["string?"](ast[3]) and utils["valid-lua-identifier?"](ast[3])) then
|
||
|
|
return native_method_call(ast, scope, parent, target, args)
|
||
|
|
elseif (target.type == "sym") then
|
||
|
|
return nonnative_method_call(ast, scope, parent, target, args)
|
||
|
|
else
|
||
|
|
return double_eval_protected_method_call(ast, scope, parent, target, args)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS[":"] = method_call
|
||
|
|
doc_special(":", {"tbl", "method-name", "..."}, "Call the named method on tbl with the provided args.\nMethod name doesn't have to be known at compile-time; if it is, use\n(tbl:method-name ...) instead.")
|
||
|
|
SPECIALS.comment = function(ast, _, parent)
|
||
|
|
local c = nil
|
||
|
|
local _497_
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for i, elt in ipairs(ast) do
|
||
|
|
local val_19_ = nil
|
||
|
|
if (i ~= 1) then
|
||
|
|
val_19_ = view(ast[i], {["one-line?"] = true})
|
||
|
|
else
|
||
|
|
val_19_ = nil
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_497_ = tbl_17_
|
||
|
|
end
|
||
|
|
c = table.concat(_497_, " "):gsub("%]%]", "]\\]")
|
||
|
|
return compiler.emit(parent, ("--[[ " .. c .. " ]]"), ast)
|
||
|
|
end
|
||
|
|
doc_special("comment", {"..."}, "Comment which will be emitted in Lua output.", true)
|
||
|
|
local function hashfn_max_used(f_scope, i, max)
|
||
|
|
local max0 = nil
|
||
|
|
if f_scope.symmeta[("$" .. i)].used then
|
||
|
|
max0 = i
|
||
|
|
else
|
||
|
|
max0 = max
|
||
|
|
end
|
||
|
|
if (i < 9) then
|
||
|
|
return hashfn_max_used(f_scope, (i + 1), max0)
|
||
|
|
else
|
||
|
|
return max0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS.hashfn = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 2), "expected one argument", ast)
|
||
|
|
local f_scope = nil
|
||
|
|
do
|
||
|
|
local _502_0 = compiler["make-scope"](scope)
|
||
|
|
_502_0["vararg"] = false
|
||
|
|
_502_0["hashfn"] = true
|
||
|
|
f_scope = _502_0
|
||
|
|
end
|
||
|
|
local f_chunk = {}
|
||
|
|
local name = compiler.gensym(scope)
|
||
|
|
local symbol = utils.sym(name)
|
||
|
|
local args = {}
|
||
|
|
compiler["declare-local"](symbol, {}, scope, ast)
|
||
|
|
for i = 1, 9 do
|
||
|
|
args[i] = compiler["declare-local"](utils.sym(("$" .. i)), {}, f_scope, ast)
|
||
|
|
end
|
||
|
|
local function walker(idx, node, _3fparent_node)
|
||
|
|
if utils["sym?"](node, "$...") then
|
||
|
|
f_scope.vararg = true
|
||
|
|
if _3fparent_node then
|
||
|
|
_3fparent_node[idx] = utils.varg()
|
||
|
|
return nil
|
||
|
|
else
|
||
|
|
return utils.varg()
|
||
|
|
end
|
||
|
|
else
|
||
|
|
return ((utils["list?"](node) and (not _3fparent_node or not utils["sym?"](node[1], "hashfn"))) or utils["table?"](node))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
utils["walk-tree"](ast, walker)
|
||
|
|
compiler.compile1(ast[2], f_scope, f_chunk, {tail = true})
|
||
|
|
local max_used = hashfn_max_used(f_scope, 1, 0)
|
||
|
|
if f_scope.vararg then
|
||
|
|
compiler.assert((max_used == 0), "$ and $... in hashfn are mutually exclusive", ast)
|
||
|
|
end
|
||
|
|
local arg_str = nil
|
||
|
|
if f_scope.vararg then
|
||
|
|
arg_str = tostring(utils.varg())
|
||
|
|
else
|
||
|
|
arg_str = table.concat(args, ", ", 1, max_used)
|
||
|
|
end
|
||
|
|
compiler.emit(parent, string.format("local function %s(%s)", name, arg_str), ast)
|
||
|
|
compiler.emit(parent, f_chunk, ast)
|
||
|
|
compiler.emit(parent, "end", ast)
|
||
|
|
return utils.expr(name, "sym")
|
||
|
|
end
|
||
|
|
doc_special("hashfn", {"..."}, "Function literal shorthand; args are either $... OR $1, $2, etc.")
|
||
|
|
local function maybe_short_circuit_protect(ast, i, name, _507_0)
|
||
|
|
local _508_ = _507_0
|
||
|
|
local mac = _508_["macros"]
|
||
|
|
local call = (utils["list?"](ast) and tostring(ast[1]))
|
||
|
|
if ((("or" == name) or ("and" == name)) and (1 < i) and (mac[call] or ("set" == call) or ("tset" == call) or ("global" == call))) then
|
||
|
|
return utils.list(utils.sym("do"), ast)
|
||
|
|
else
|
||
|
|
return ast
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function arithmetic_special(name, zero_arity, unary_prefix, ast, scope, parent)
|
||
|
|
local len = #ast
|
||
|
|
local operands = {}
|
||
|
|
local padded_op = (" " .. name .. " ")
|
||
|
|
for i = 2, len do
|
||
|
|
local subast = maybe_short_circuit_protect(ast[i], i, name, scope)
|
||
|
|
local subexprs = compiler.compile1(subast, scope, parent)
|
||
|
|
if (i == len) then
|
||
|
|
utils.map(subexprs, tostring, operands)
|
||
|
|
else
|
||
|
|
table.insert(operands, tostring(subexprs[1]))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local _511_0 = #operands
|
||
|
|
if (_511_0 == 0) then
|
||
|
|
local _512_
|
||
|
|
do
|
||
|
|
compiler.assert(zero_arity, "Expected more than 0 arguments", ast)
|
||
|
|
_512_ = zero_arity
|
||
|
|
end
|
||
|
|
return utils.expr(_512_, "literal")
|
||
|
|
elseif (_511_0 == 1) then
|
||
|
|
if utils["varg?"](ast[2]) then
|
||
|
|
return compiler.assert(false, "tried to use vararg with operator", ast)
|
||
|
|
elseif unary_prefix then
|
||
|
|
return ("(" .. unary_prefix .. padded_op .. operands[1] .. ")")
|
||
|
|
else
|
||
|
|
return operands[1]
|
||
|
|
end
|
||
|
|
else
|
||
|
|
local _ = _511_0
|
||
|
|
return ("(" .. table.concat(operands, padded_op) .. ")")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function define_arithmetic_special(name, zero_arity, unary_prefix, _3flua_name)
|
||
|
|
local _516_
|
||
|
|
do
|
||
|
|
local _515_0 = (_3flua_name or name)
|
||
|
|
local function _517_(...)
|
||
|
|
return arithmetic_special(_515_0, zero_arity, unary_prefix, ...)
|
||
|
|
end
|
||
|
|
_516_ = _517_
|
||
|
|
end
|
||
|
|
SPECIALS[name] = _516_
|
||
|
|
return doc_special(name, {"a", "b", "..."}, "Arithmetic operator; works the same as Lua but accepts more arguments.")
|
||
|
|
end
|
||
|
|
define_arithmetic_special("+", "0")
|
||
|
|
define_arithmetic_special("..", "''")
|
||
|
|
define_arithmetic_special("^")
|
||
|
|
define_arithmetic_special("-", nil, "")
|
||
|
|
define_arithmetic_special("*", "1")
|
||
|
|
define_arithmetic_special("%")
|
||
|
|
define_arithmetic_special("/", nil, "1")
|
||
|
|
define_arithmetic_special("//", nil, "1")
|
||
|
|
SPECIALS["or"] = function(ast, scope, parent)
|
||
|
|
return arithmetic_special("or", "false", nil, ast, scope, parent)
|
||
|
|
end
|
||
|
|
SPECIALS["and"] = function(ast, scope, parent)
|
||
|
|
return arithmetic_special("and", "true", nil, ast, scope, parent)
|
||
|
|
end
|
||
|
|
doc_special("and", {"a", "b", "..."}, "Boolean operator; works the same as Lua but accepts more arguments.")
|
||
|
|
doc_special("or", {"a", "b", "..."}, "Boolean operator; works the same as Lua but accepts more arguments.")
|
||
|
|
local function bitop_special(native_name, lib_name, zero_arity, unary_prefix, ast, scope, parent)
|
||
|
|
if (#ast == 1) then
|
||
|
|
return compiler.assert(zero_arity, "Expected more than 0 arguments.", ast)
|
||
|
|
else
|
||
|
|
local len = #ast
|
||
|
|
local operands = {}
|
||
|
|
local padded_native_name = (" " .. native_name .. " ")
|
||
|
|
local prefixed_lib_name = ("bit." .. lib_name)
|
||
|
|
for i = 2, len do
|
||
|
|
local subexprs = nil
|
||
|
|
local _518_
|
||
|
|
if (i ~= len) then
|
||
|
|
_518_ = 1
|
||
|
|
else
|
||
|
|
_518_ = nil
|
||
|
|
end
|
||
|
|
subexprs = compiler.compile1(ast[i], scope, parent, {nval = _518_})
|
||
|
|
utils.map(subexprs, tostring, operands)
|
||
|
|
end
|
||
|
|
if (#operands == 1) then
|
||
|
|
if utils.root.options.useBitLib then
|
||
|
|
return (prefixed_lib_name .. "(" .. unary_prefix .. ", " .. operands[1] .. ")")
|
||
|
|
else
|
||
|
|
return ("(" .. unary_prefix .. padded_native_name .. operands[1] .. ")")
|
||
|
|
end
|
||
|
|
else
|
||
|
|
if utils.root.options.useBitLib then
|
||
|
|
return (prefixed_lib_name .. "(" .. table.concat(operands, ", ") .. ")")
|
||
|
|
else
|
||
|
|
return ("(" .. table.concat(operands, padded_native_name) .. ")")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function define_bitop_special(name, zero_arity, unary_prefix, native)
|
||
|
|
local function _524_(...)
|
||
|
|
return bitop_special(native, name, zero_arity, unary_prefix, ...)
|
||
|
|
end
|
||
|
|
SPECIALS[name] = _524_
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
define_bitop_special("lshift", nil, "1", "<<")
|
||
|
|
define_bitop_special("rshift", nil, "1", ">>")
|
||
|
|
define_bitop_special("band", "0", "0", "&")
|
||
|
|
define_bitop_special("bor", "0", "0", "|")
|
||
|
|
define_bitop_special("bxor", "0", "0", "~")
|
||
|
|
doc_special("lshift", {"x", "n"}, "Bitwise logical left shift of x by n bits.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
|
||
|
|
doc_special("rshift", {"x", "n"}, "Bitwise logical right shift of x by n bits.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
|
||
|
|
doc_special("band", {"x1", "x2", "..."}, "Bitwise AND of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
|
||
|
|
doc_special("bor", {"x1", "x2", "..."}, "Bitwise OR of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
|
||
|
|
doc_special("bxor", {"x1", "x2", "..."}, "Bitwise XOR of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
|
||
|
|
SPECIALS.bnot = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 2), "expected one argument", ast)
|
||
|
|
local _525_ = compiler.compile1(ast[2], scope, parent, {nval = 1})
|
||
|
|
local value = _525_[1]
|
||
|
|
if utils.root.options.useBitLib then
|
||
|
|
return ("bit.bnot(" .. tostring(value) .. ")")
|
||
|
|
else
|
||
|
|
return ("~(" .. tostring(value) .. ")")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
doc_special("bnot", {"x"}, "Bitwise negation; only works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
|
||
|
|
doc_special("..", {"a", "b", "..."}, "String concatenation operator; works the same as Lua but accepts more arguments.")
|
||
|
|
local function native_comparator(op, _527_0, scope, parent)
|
||
|
|
local _528_ = _527_0
|
||
|
|
local _ = _528_[1]
|
||
|
|
local lhs_ast = _528_[2]
|
||
|
|
local rhs_ast = _528_[3]
|
||
|
|
local _529_ = compiler.compile1(lhs_ast, scope, parent, {nval = 1})
|
||
|
|
local lhs = _529_[1]
|
||
|
|
local _530_ = compiler.compile1(rhs_ast, scope, parent, {nval = 1})
|
||
|
|
local rhs = _530_[1]
|
||
|
|
return string.format("(%s %s %s)", tostring(lhs), op, tostring(rhs))
|
||
|
|
end
|
||
|
|
local function idempotent_comparator(op, chain_op, ast, scope, parent)
|
||
|
|
local vals = nil
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for i = 2, #ast do
|
||
|
|
local val_19_ = tostring(compiler.compile1(ast[i], scope, parent, {nval = 1})[1])
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
vals = tbl_17_
|
||
|
|
end
|
||
|
|
local comparisons = nil
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for i = 1, (#vals - 1) do
|
||
|
|
local val_19_ = string.format("(%s %s %s)", vals[i], op, vals[(i + 1)])
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
comparisons = tbl_17_
|
||
|
|
end
|
||
|
|
local chain = string.format(" %s ", (chain_op or "and"))
|
||
|
|
return ("(" .. table.concat(comparisons, chain) .. ")")
|
||
|
|
end
|
||
|
|
local function double_eval_protected_comparator(op, chain_op, ast, scope, parent)
|
||
|
|
local arglist = {}
|
||
|
|
local comparisons = {}
|
||
|
|
local vals = {}
|
||
|
|
local chain = string.format(" %s ", (chain_op or "and"))
|
||
|
|
for i = 2, #ast do
|
||
|
|
table.insert(arglist, tostring(compiler.gensym(scope)))
|
||
|
|
table.insert(vals, tostring(compiler.compile1(ast[i], scope, parent, {nval = 1})[1]))
|
||
|
|
end
|
||
|
|
do
|
||
|
|
local tbl_17_ = comparisons
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for i = 1, (#arglist - 1) do
|
||
|
|
local val_19_ = string.format("(%s %s %s)", arglist[i], op, arglist[(i + 1)])
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return string.format("(function(%s) return %s end)(%s)", table.concat(arglist, ","), table.concat(comparisons, chain), table.concat(vals, ","))
|
||
|
|
end
|
||
|
|
local function define_comparator_special(name, _3flua_op, _3fchain_op)
|
||
|
|
do
|
||
|
|
local op = (_3flua_op or name)
|
||
|
|
local function opfn(ast, scope, parent)
|
||
|
|
compiler.assert((2 < #ast), "expected at least two arguments", ast)
|
||
|
|
if (3 == #ast) then
|
||
|
|
return native_comparator(op, ast, scope, parent)
|
||
|
|
elseif utils["every?"]({unpack(ast, 2)}, utils["idempotent-expr?"]) then
|
||
|
|
return idempotent_comparator(op, _3fchain_op, ast, scope, parent)
|
||
|
|
else
|
||
|
|
return double_eval_protected_comparator(op, _3fchain_op, ast, scope, parent)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS[name] = opfn
|
||
|
|
end
|
||
|
|
return doc_special(name, {"a", "b", "..."}, "Comparison operator; works the same as Lua but accepts more arguments.")
|
||
|
|
end
|
||
|
|
define_comparator_special(">")
|
||
|
|
define_comparator_special("<")
|
||
|
|
define_comparator_special(">=")
|
||
|
|
define_comparator_special("<=")
|
||
|
|
define_comparator_special("=", "==")
|
||
|
|
define_comparator_special("not=", "~=", "or")
|
||
|
|
local function define_unary_special(op, _3frealop)
|
||
|
|
local function opfn(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 2), "expected one argument", ast)
|
||
|
|
local tail = compiler.compile1(ast[2], scope, parent, {nval = 1})
|
||
|
|
return ((_3frealop or op) .. tostring(tail[1]))
|
||
|
|
end
|
||
|
|
SPECIALS[op] = opfn
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
define_unary_special("not", "not ")
|
||
|
|
doc_special("not", {"x"}, "Logical operator; works the same as Lua.")
|
||
|
|
define_unary_special("length", "#")
|
||
|
|
doc_special("length", {"x"}, "Returns the length of a table or string.")
|
||
|
|
SPECIALS["~="] = SPECIALS["not="]
|
||
|
|
SPECIALS["#"] = SPECIALS.length
|
||
|
|
SPECIALS.quote = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 2), "expected one argument", ast)
|
||
|
|
local runtime, this_scope = true, scope
|
||
|
|
while this_scope do
|
||
|
|
this_scope = this_scope.parent
|
||
|
|
if (this_scope == compiler.scopes.compiler) then
|
||
|
|
runtime = false
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return compiler["do-quote"](ast[2], scope, parent, runtime)
|
||
|
|
end
|
||
|
|
doc_special("quote", {"x"}, "Quasiquote the following form. Only works in macro/compiler scope.")
|
||
|
|
local macro_loaded = {}
|
||
|
|
local function safe_getmetatable(tbl)
|
||
|
|
local mt = getmetatable(tbl)
|
||
|
|
assert((mt ~= getmetatable("")), "Illegal metatable access!")
|
||
|
|
return mt
|
||
|
|
end
|
||
|
|
local safe_require = nil
|
||
|
|
local function safe_compiler_env()
|
||
|
|
local _537_
|
||
|
|
do
|
||
|
|
local _536_0 = rawget(_G, "utf8")
|
||
|
|
if (nil ~= _536_0) then
|
||
|
|
_537_ = utils.copy(_536_0)
|
||
|
|
else
|
||
|
|
_537_ = _536_0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return {_VERSION = _VERSION, assert = assert, bit = rawget(_G, "bit"), error = error, getmetatable = safe_getmetatable, ipairs = ipairs, math = utils.copy(math), next = next, pairs = utils.stablepairs, pcall = pcall, print = print, rawequal = rawequal, rawget = rawget, rawlen = rawget(_G, "rawlen"), rawset = rawset, require = safe_require, select = select, setmetatable = setmetatable, string = utils.copy(string), table = utils.copy(table), tonumber = tonumber, tostring = tostring, type = type, utf8 = _537_, xpcall = xpcall}
|
||
|
|
end
|
||
|
|
local function combined_mt_pairs(env)
|
||
|
|
local combined = {}
|
||
|
|
local _539_ = getmetatable(env)
|
||
|
|
local __index = _539_["__index"]
|
||
|
|
if ("table" == type(__index)) then
|
||
|
|
for k, v in pairs(__index) do
|
||
|
|
combined[k] = v
|
||
|
|
end
|
||
|
|
end
|
||
|
|
for k, v in next, env, nil do
|
||
|
|
combined[k] = v
|
||
|
|
end
|
||
|
|
return next, combined, nil
|
||
|
|
end
|
||
|
|
local function make_compiler_env(ast, scope, parent, _3fopts)
|
||
|
|
local provided = nil
|
||
|
|
do
|
||
|
|
local _541_0 = (_3fopts or utils.root.options)
|
||
|
|
if ((_G.type(_541_0) == "table") and (_541_0["compiler-env"] == "strict")) then
|
||
|
|
provided = safe_compiler_env()
|
||
|
|
elseif ((_G.type(_541_0) == "table") and (nil ~= _541_0.compilerEnv)) then
|
||
|
|
local compilerEnv = _541_0.compilerEnv
|
||
|
|
provided = compilerEnv
|
||
|
|
elseif ((_G.type(_541_0) == "table") and (nil ~= _541_0["compiler-env"])) then
|
||
|
|
local compiler_env = _541_0["compiler-env"]
|
||
|
|
provided = compiler_env
|
||
|
|
else
|
||
|
|
local _ = _541_0
|
||
|
|
provided = safe_compiler_env(false)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local env = nil
|
||
|
|
local function _543_()
|
||
|
|
return compiler.scopes.macro
|
||
|
|
end
|
||
|
|
local function _544_(symbol)
|
||
|
|
compiler.assert(compiler.scopes.macro, "must call from macro", ast)
|
||
|
|
return compiler.scopes.macro.manglings[tostring(symbol)]
|
||
|
|
end
|
||
|
|
local function _545_(base)
|
||
|
|
return utils.sym(compiler.gensym((compiler.scopes.macro or scope), base))
|
||
|
|
end
|
||
|
|
local function _546_(form)
|
||
|
|
compiler.assert(compiler.scopes.macro, "must call from macro", ast)
|
||
|
|
return compiler.macroexpand(form, compiler.scopes.macro)
|
||
|
|
end
|
||
|
|
env = {["assert-compile"] = compiler.assert, ["ast-source"] = utils["ast-source"], ["comment?"] = utils["comment?"], ["get-scope"] = _543_, ["in-scope?"] = _544_, ["list?"] = utils["list?"], ["macro-loaded"] = macro_loaded, ["multi-sym?"] = utils["multi-sym?"], ["sequence?"] = utils["sequence?"], ["sym?"] = utils["sym?"], ["table?"] = utils["table?"], ["varg?"] = utils["varg?"], _AST = ast, _CHUNK = parent, _IS_COMPILER = true, _SCOPE = scope, _SPECIALS = compiler.scopes.global.specials, _VARARG = utils.varg(), comment = utils.comment, gensym = _545_, list = utils.list, macroexpand = _546_, metadata = compiler.metadata, sequence = utils.sequence, sym = utils.sym, unpack = unpack, version = utils.version, view = view}
|
||
|
|
env._G = env
|
||
|
|
return setmetatable(env, {__index = provided, __newindex = provided, __pairs = combined_mt_pairs})
|
||
|
|
end
|
||
|
|
local function _547_(...)
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for c in string.gmatch((package.config or ""), "([^\n]+)") do
|
||
|
|
local val_19_ = c
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return tbl_17_
|
||
|
|
end
|
||
|
|
local _549_ = _547_(...)
|
||
|
|
local dirsep = _549_[1]
|
||
|
|
local pathsep = _549_[2]
|
||
|
|
local pathmark = _549_[3]
|
||
|
|
local pkg_config = {dirsep = (dirsep or "/"), pathmark = (pathmark or "?"), pathsep = (pathsep or ";")}
|
||
|
|
local function escapepat(str)
|
||
|
|
return string.gsub(str, "[^%w]", "%%%1")
|
||
|
|
end
|
||
|
|
local function search_module(modulename, _3fpathstring)
|
||
|
|
local pathsepesc = escapepat(pkg_config.pathsep)
|
||
|
|
local pattern = ("([^%s]*)%s"):format(pathsepesc, pathsepesc)
|
||
|
|
local no_dot_module = modulename:gsub("%.", pkg_config.dirsep)
|
||
|
|
local fullpath = ((_3fpathstring or utils["fennel-module"].path) .. pkg_config.pathsep)
|
||
|
|
local function try_path(path)
|
||
|
|
local filename = path:gsub(escapepat(pkg_config.pathmark), no_dot_module)
|
||
|
|
local filename2 = path:gsub(escapepat(pkg_config.pathmark), modulename)
|
||
|
|
local _550_0 = (io.open(filename) or io.open(filename2))
|
||
|
|
if (nil ~= _550_0) then
|
||
|
|
local file = _550_0
|
||
|
|
file:close()
|
||
|
|
return filename
|
||
|
|
else
|
||
|
|
local _ = _550_0
|
||
|
|
return nil, ("no file '" .. filename .. "'")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function find_in_path(start, _3ftried_paths)
|
||
|
|
local _552_0 = fullpath:match(pattern, start)
|
||
|
|
if (nil ~= _552_0) then
|
||
|
|
local path = _552_0
|
||
|
|
local _553_0, _554_0 = try_path(path)
|
||
|
|
if (nil ~= _553_0) then
|
||
|
|
local filename = _553_0
|
||
|
|
return filename
|
||
|
|
elseif ((_553_0 == nil) and (nil ~= _554_0)) then
|
||
|
|
local error = _554_0
|
||
|
|
local function _556_()
|
||
|
|
local _555_0 = (_3ftried_paths or {})
|
||
|
|
table.insert(_555_0, error)
|
||
|
|
return _555_0
|
||
|
|
end
|
||
|
|
return find_in_path((start + #path + 1), _556_())
|
||
|
|
end
|
||
|
|
else
|
||
|
|
local _ = _552_0
|
||
|
|
local function _558_()
|
||
|
|
local tried_paths = table.concat((_3ftried_paths or {}), "\n\9")
|
||
|
|
if (_VERSION < "Lua 5.4") then
|
||
|
|
return ("\n\9" .. tried_paths)
|
||
|
|
else
|
||
|
|
return tried_paths
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return nil, _558_()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return find_in_path(1)
|
||
|
|
end
|
||
|
|
local function make_searcher(_3foptions)
|
||
|
|
local function _561_(module_name)
|
||
|
|
local opts = utils.copy(utils.root.options)
|
||
|
|
for k, v in pairs((_3foptions or {})) do
|
||
|
|
opts[k] = v
|
||
|
|
end
|
||
|
|
opts["module-name"] = module_name
|
||
|
|
local _562_0, _563_0 = search_module(module_name)
|
||
|
|
if (nil ~= _562_0) then
|
||
|
|
local filename = _562_0
|
||
|
|
local function _564_(...)
|
||
|
|
return utils["fennel-module"].dofile(filename, opts, ...)
|
||
|
|
end
|
||
|
|
return _564_, filename
|
||
|
|
elseif ((_562_0 == nil) and (nil ~= _563_0)) then
|
||
|
|
local error = _563_0
|
||
|
|
return error
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return _561_
|
||
|
|
end
|
||
|
|
local function dofile_with_searcher(fennel_macro_searcher, filename, opts, ...)
|
||
|
|
local searchers = (package.loaders or package.searchers or {})
|
||
|
|
local _ = table.insert(searchers, 1, fennel_macro_searcher)
|
||
|
|
local m = utils["fennel-module"].dofile(filename, opts, ...)
|
||
|
|
table.remove(searchers, 1)
|
||
|
|
return m
|
||
|
|
end
|
||
|
|
local function fennel_macro_searcher(module_name)
|
||
|
|
local opts = nil
|
||
|
|
do
|
||
|
|
local _566_0 = utils.copy(utils.root.options)
|
||
|
|
_566_0["module-name"] = module_name
|
||
|
|
_566_0["env"] = "_COMPILER"
|
||
|
|
_566_0["requireAsInclude"] = false
|
||
|
|
_566_0["allowedGlobals"] = nil
|
||
|
|
opts = _566_0
|
||
|
|
end
|
||
|
|
local _567_0 = search_module(module_name, utils["fennel-module"]["macro-path"])
|
||
|
|
if (nil ~= _567_0) then
|
||
|
|
local filename = _567_0
|
||
|
|
local _568_
|
||
|
|
if (opts["compiler-env"] == _G) then
|
||
|
|
local function _569_(...)
|
||
|
|
return dofile_with_searcher(fennel_macro_searcher, filename, opts, ...)
|
||
|
|
end
|
||
|
|
_568_ = _569_
|
||
|
|
else
|
||
|
|
local function _570_(...)
|
||
|
|
return utils["fennel-module"].dofile(filename, opts, ...)
|
||
|
|
end
|
||
|
|
_568_ = _570_
|
||
|
|
end
|
||
|
|
return _568_, filename
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function lua_macro_searcher(module_name)
|
||
|
|
local _573_0 = search_module(module_name, package.path)
|
||
|
|
if (nil ~= _573_0) then
|
||
|
|
local filename = _573_0
|
||
|
|
local code = nil
|
||
|
|
do
|
||
|
|
local f = io.open(filename)
|
||
|
|
local function close_handlers_10_(ok_11_, ...)
|
||
|
|
f:close()
|
||
|
|
if ok_11_ then
|
||
|
|
return ...
|
||
|
|
else
|
||
|
|
return error(..., 0)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _575_()
|
||
|
|
return assert(f:read("*a"))
|
||
|
|
end
|
||
|
|
code = close_handlers_10_(_G.xpcall(_575_, (package.loaded.fennel or debug).traceback))
|
||
|
|
end
|
||
|
|
local chunk = load_code(code, make_compiler_env(), filename)
|
||
|
|
return chunk, filename
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local macro_searchers = {fennel_macro_searcher, lua_macro_searcher}
|
||
|
|
local function search_macro_module(modname, n)
|
||
|
|
local _577_0 = macro_searchers[n]
|
||
|
|
if (nil ~= _577_0) then
|
||
|
|
local f = _577_0
|
||
|
|
local _578_0, _579_0 = f(modname)
|
||
|
|
if ((nil ~= _578_0) and true) then
|
||
|
|
local loader = _578_0
|
||
|
|
local _3ffilename = _579_0
|
||
|
|
return loader, _3ffilename
|
||
|
|
else
|
||
|
|
local _ = _578_0
|
||
|
|
return search_macro_module(modname, (n + 1))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function sandbox_fennel_module(modname)
|
||
|
|
if ((modname == "fennel.macros") or (package and package.loaded and ("table" == type(package.loaded[modname])) and (package.loaded[modname].metadata == compiler.metadata))) then
|
||
|
|
return {metadata = compiler.metadata, view = view}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _583_(modname)
|
||
|
|
local function _584_()
|
||
|
|
local loader, filename = search_macro_module(modname, 1)
|
||
|
|
compiler.assert(loader, (modname .. " module not found."))
|
||
|
|
macro_loaded[modname] = loader(modname, filename)
|
||
|
|
return macro_loaded[modname]
|
||
|
|
end
|
||
|
|
return (macro_loaded[modname] or sandbox_fennel_module(modname) or _584_())
|
||
|
|
end
|
||
|
|
safe_require = _583_
|
||
|
|
local function add_macros(macros_2a, ast, scope)
|
||
|
|
compiler.assert(utils["table?"](macros_2a), "expected macros to be table", ast)
|
||
|
|
for k, v in pairs(macros_2a) do
|
||
|
|
compiler.assert((type(v) == "function"), "expected each macro to be function", ast)
|
||
|
|
compiler["check-binding-valid"](utils.sym(k), scope, ast, {["macro?"] = true})
|
||
|
|
scope.macros[k] = v
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function resolve_module_name(_585_0, _scope, _parent, opts)
|
||
|
|
local _586_ = _585_0
|
||
|
|
local second = _586_[2]
|
||
|
|
local filename = _586_["filename"]
|
||
|
|
local filename0 = (filename or (utils["table?"](second) and second.filename))
|
||
|
|
local module_name = utils.root.options["module-name"]
|
||
|
|
local modexpr = compiler.compile(second, opts)
|
||
|
|
local modname_chunk = load_code(modexpr)
|
||
|
|
return modname_chunk(module_name, filename0)
|
||
|
|
end
|
||
|
|
SPECIALS["require-macros"] = function(ast, scope, parent, _3freal_ast)
|
||
|
|
compiler.assert((#ast == 2), "Expected one module name argument", (_3freal_ast or ast))
|
||
|
|
local modname = resolve_module_name(ast, scope, parent, {})
|
||
|
|
compiler.assert(utils["string?"](modname), "module name must compile to string", (_3freal_ast or ast))
|
||
|
|
if not macro_loaded[modname] then
|
||
|
|
local loader, filename = search_macro_module(modname, 1)
|
||
|
|
compiler.assert(loader, (modname .. " module not found."), ast)
|
||
|
|
macro_loaded[modname] = compiler.assert(utils["table?"](loader(modname, filename)), "expected macros to be table", (_3freal_ast or ast))
|
||
|
|
end
|
||
|
|
if ("import-macros" == tostring(ast[1])) then
|
||
|
|
return macro_loaded[modname]
|
||
|
|
else
|
||
|
|
return add_macros(macro_loaded[modname], ast, scope, parent)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
doc_special("require-macros", {"macro-module-name"}, "Load given module and use its contents as macro definitions in current scope.\nMacro module should return a table of macro functions with string keys.\nConsider using import-macros instead as it is more flexible.")
|
||
|
|
local function emit_included_fennel(src, path, opts, sub_chunk)
|
||
|
|
local subscope = compiler["make-scope"](utils.root.scope.parent)
|
||
|
|
local forms = {}
|
||
|
|
if utils.root.options.requireAsInclude then
|
||
|
|
subscope.specials.require = compiler["require-include"]
|
||
|
|
end
|
||
|
|
for _, val in parser.parser(parser["string-stream"](src), path) do
|
||
|
|
table.insert(forms, val)
|
||
|
|
end
|
||
|
|
for i = 1, #forms do
|
||
|
|
local subopts = nil
|
||
|
|
if (i == #forms) then
|
||
|
|
subopts = {tail = true}
|
||
|
|
else
|
||
|
|
subopts = {nval = 0}
|
||
|
|
end
|
||
|
|
utils["propagate-options"](opts, subopts)
|
||
|
|
compiler.compile1(forms[i], subscope, sub_chunk, subopts)
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function include_path(ast, opts, path, mod, fennel_3f)
|
||
|
|
utils.root.scope.includes[mod] = "fnl/loading"
|
||
|
|
local src = nil
|
||
|
|
do
|
||
|
|
local f = assert(io.open(path))
|
||
|
|
local function close_handlers_10_(ok_11_, ...)
|
||
|
|
f:close()
|
||
|
|
if ok_11_ then
|
||
|
|
return ...
|
||
|
|
else
|
||
|
|
return error(..., 0)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _592_()
|
||
|
|
return assert(f:read("*all")):gsub("[\13\n]*$", "")
|
||
|
|
end
|
||
|
|
src = close_handlers_10_(_G.xpcall(_592_, (package.loaded.fennel or debug).traceback))
|
||
|
|
end
|
||
|
|
local ret = utils.expr(("require(\"" .. mod .. "\")"), "statement")
|
||
|
|
local target = ("package.preload[%q]"):format(mod)
|
||
|
|
local preload_str = (target .. " = " .. target .. " or function(...)")
|
||
|
|
local temp_chunk, sub_chunk = {}, {}
|
||
|
|
compiler.emit(temp_chunk, preload_str, ast)
|
||
|
|
compiler.emit(temp_chunk, sub_chunk)
|
||
|
|
compiler.emit(temp_chunk, "end", ast)
|
||
|
|
for _, v in ipairs(temp_chunk) do
|
||
|
|
table.insert(utils.root.chunk, v)
|
||
|
|
end
|
||
|
|
if fennel_3f then
|
||
|
|
emit_included_fennel(src, path, opts, sub_chunk)
|
||
|
|
else
|
||
|
|
compiler.emit(sub_chunk, src, ast)
|
||
|
|
end
|
||
|
|
utils.root.scope.includes[mod] = ret
|
||
|
|
return ret
|
||
|
|
end
|
||
|
|
local function include_circular_fallback(mod, modexpr, fallback, ast)
|
||
|
|
if (utils.root.scope.includes[mod] == "fnl/loading") then
|
||
|
|
compiler.assert(fallback, "circular include detected", ast)
|
||
|
|
return fallback(modexpr)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
SPECIALS.include = function(ast, scope, parent, opts)
|
||
|
|
compiler.assert((#ast == 2), "expected one argument", ast)
|
||
|
|
local modexpr = nil
|
||
|
|
do
|
||
|
|
local _595_0, _596_0 = pcall(resolve_module_name, ast, scope, parent, opts)
|
||
|
|
if ((_595_0 == true) and (nil ~= _596_0)) then
|
||
|
|
local modname = _596_0
|
||
|
|
modexpr = utils.expr(string.format("%q", modname), "literal")
|
||
|
|
else
|
||
|
|
local _ = _595_0
|
||
|
|
modexpr = compiler.compile1(ast[2], scope, parent, {nval = 1})[1]
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ((modexpr.type ~= "literal") or ((modexpr[1]):byte() ~= 34)) then
|
||
|
|
if opts.fallback then
|
||
|
|
return opts.fallback(modexpr)
|
||
|
|
else
|
||
|
|
return compiler.assert(false, "module name must be string literal", ast)
|
||
|
|
end
|
||
|
|
else
|
||
|
|
local mod = load_code(("return " .. modexpr[1]))()
|
||
|
|
local oldmod = utils.root.options["module-name"]
|
||
|
|
local _ = nil
|
||
|
|
utils.root.options["module-name"] = mod
|
||
|
|
_ = nil
|
||
|
|
local res = nil
|
||
|
|
local function _600_()
|
||
|
|
local _599_0 = search_module(mod)
|
||
|
|
if (nil ~= _599_0) then
|
||
|
|
local fennel_path = _599_0
|
||
|
|
return include_path(ast, opts, fennel_path, mod, true)
|
||
|
|
else
|
||
|
|
local _0 = _599_0
|
||
|
|
local lua_path = search_module(mod, package.path)
|
||
|
|
if lua_path then
|
||
|
|
return include_path(ast, opts, lua_path, mod, false)
|
||
|
|
elseif opts.fallback then
|
||
|
|
return opts.fallback(modexpr)
|
||
|
|
else
|
||
|
|
return compiler.assert(false, ("module not found " .. mod), ast)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
res = ((utils["member?"](mod, (utils.root.options.skipInclude or {})) and opts.fallback(modexpr, true)) or include_circular_fallback(mod, modexpr, opts.fallback, ast) or utils.root.scope.includes[mod] or _600_())
|
||
|
|
utils.root.options["module-name"] = oldmod
|
||
|
|
return res
|
||
|
|
end
|
||
|
|
end
|
||
|
|
doc_special("include", {"module-name-literal"}, "Like require but load the target module during compilation and embed it in the\nLua output. The module must be a string literal and resolvable at compile time.")
|
||
|
|
local function eval_compiler_2a(ast, scope, parent)
|
||
|
|
local env = make_compiler_env(ast, scope, parent)
|
||
|
|
local opts = utils.copy(utils.root.options)
|
||
|
|
opts.scope = compiler["make-scope"](compiler.scopes.compiler)
|
||
|
|
opts.allowedGlobals = current_global_names(env)
|
||
|
|
return assert(load_code(compiler.compile(ast, opts), wrap_env(env)))(opts["module-name"], ast.filename)
|
||
|
|
end
|
||
|
|
SPECIALS.macros = function(ast, scope, parent)
|
||
|
|
compiler.assert((#ast == 2), "Expected one table argument", ast)
|
||
|
|
local macro_tbl = eval_compiler_2a(ast[2], scope, parent)
|
||
|
|
compiler.assert(utils["table?"](macro_tbl), "Expected one table argument", ast)
|
||
|
|
return add_macros(macro_tbl, ast, scope, parent)
|
||
|
|
end
|
||
|
|
doc_special("macros", {"{:macro-name-1 (fn [...] ...) ... :macro-name-N macro-body-N}"}, "Define all functions in the given table as macros local to the current scope.")
|
||
|
|
SPECIALS["eval-compiler"] = function(ast, scope, parent)
|
||
|
|
local old_first = ast[1]
|
||
|
|
ast[1] = utils.sym("do")
|
||
|
|
local val = eval_compiler_2a(ast, scope, parent)
|
||
|
|
ast[1] = old_first
|
||
|
|
return val
|
||
|
|
end
|
||
|
|
doc_special("eval-compiler", {"..."}, "Evaluate the body at compile-time. Use the macro system instead if possible.", true)
|
||
|
|
SPECIALS.unquote = function(ast)
|
||
|
|
return compiler.assert(false, "tried to use unquote outside quote", ast)
|
||
|
|
end
|
||
|
|
doc_special("unquote", {"..."}, "Evaluate the argument even if it's in a quoted form.")
|
||
|
|
return {["current-global-names"] = current_global_names, ["load-code"] = load_code, ["macro-loaded"] = macro_loaded, ["macro-searchers"] = macro_searchers, ["make-compiler-env"] = make_compiler_env, ["make-searcher"] = make_searcher, ["search-module"] = search_module, ["wrap-env"] = wrap_env, doc = doc_2a}
|
||
|
|
end
|
||
|
|
package.preload["fennel.compiler"] = package.preload["fennel.compiler"] or function(...)
|
||
|
|
local utils = require("fennel.utils")
|
||
|
|
local parser = require("fennel.parser")
|
||
|
|
local friend = require("fennel.friend")
|
||
|
|
local unpack = (table.unpack or _G.unpack)
|
||
|
|
local scopes = {}
|
||
|
|
local function make_scope(_3fparent)
|
||
|
|
local parent = (_3fparent or scopes.global)
|
||
|
|
local _260_
|
||
|
|
if parent then
|
||
|
|
_260_ = ((parent.depth or 0) + 1)
|
||
|
|
else
|
||
|
|
_260_ = 0
|
||
|
|
end
|
||
|
|
return {["gensym-base"] = setmetatable({}, {__index = (parent and parent["gensym-base"])}), autogensyms = setmetatable({}, {__index = (parent and parent.autogensyms)}), depth = _260_, gensyms = setmetatable({}, {__index = (parent and parent.gensyms)}), hashfn = (parent and parent.hashfn), includes = setmetatable({}, {__index = (parent and parent.includes)}), macros = setmetatable({}, {__index = (parent and parent.macros)}), manglings = setmetatable({}, {__index = (parent and parent.manglings)}), parent = parent, refedglobals = {}, specials = setmetatable({}, {__index = (parent and parent.specials)}), symmeta = setmetatable({}, {__index = (parent and parent.symmeta)}), unmanglings = setmetatable({}, {__index = (parent and parent.unmanglings)}), vararg = (parent and parent.vararg)}
|
||
|
|
end
|
||
|
|
local function assert_msg(ast, msg)
|
||
|
|
local ast_tbl = nil
|
||
|
|
if ("table" == type(ast)) then
|
||
|
|
ast_tbl = ast
|
||
|
|
else
|
||
|
|
ast_tbl = {}
|
||
|
|
end
|
||
|
|
local m = getmetatable(ast)
|
||
|
|
local filename = ((m and m.filename) or ast_tbl.filename or "unknown")
|
||
|
|
local line = ((m and m.line) or ast_tbl.line or "?")
|
||
|
|
local col = ((m and m.col) or ast_tbl.col or "?")
|
||
|
|
local target = tostring((utils["sym?"](ast_tbl[1]) or ast_tbl[1] or "()"))
|
||
|
|
return string.format("%s:%s:%s Compile error in '%s': %s", filename, line, col, target, msg)
|
||
|
|
end
|
||
|
|
local function assert_compile(condition, msg, ast, _3ffallback_ast)
|
||
|
|
if not condition then
|
||
|
|
local _263_ = (utils.root.options or {})
|
||
|
|
local error_pinpoint = _263_["error-pinpoint"]
|
||
|
|
local source = _263_["source"]
|
||
|
|
local unfriendly = _263_["unfriendly"]
|
||
|
|
local ast0 = nil
|
||
|
|
if next(utils["ast-source"](ast)) then
|
||
|
|
ast0 = ast
|
||
|
|
else
|
||
|
|
ast0 = (_3ffallback_ast or {})
|
||
|
|
end
|
||
|
|
if (nil == utils.hook("assert-compile", condition, msg, ast0, utils.root.reset)) then
|
||
|
|
utils.root.reset()
|
||
|
|
if unfriendly then
|
||
|
|
error(assert_msg(ast0, msg), 0)
|
||
|
|
else
|
||
|
|
friend["assert-compile"](condition, msg, ast0, source, {["error-pinpoint"] = error_pinpoint})
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return condition
|
||
|
|
end
|
||
|
|
scopes.global = make_scope()
|
||
|
|
scopes.global.vararg = true
|
||
|
|
scopes.compiler = make_scope(scopes.global)
|
||
|
|
scopes.macro = scopes.global
|
||
|
|
local serialize_subst = {["\11"] = "\\v", ["\12"] = "\\f", ["\7"] = "\\a", ["\8"] = "\\b", ["\9"] = "\\t", ["\n"] = "n"}
|
||
|
|
local function serialize_string(str)
|
||
|
|
local function _268_(_241)
|
||
|
|
return ("\\" .. _241:byte())
|
||
|
|
end
|
||
|
|
return string.gsub(string.gsub(string.format("%q", str), ".", serialize_subst), "[\128-\255]", _268_)
|
||
|
|
end
|
||
|
|
local function global_mangling(str)
|
||
|
|
if utils["valid-lua-identifier?"](str) then
|
||
|
|
return str
|
||
|
|
else
|
||
|
|
local function _269_(_241)
|
||
|
|
return string.format("_%02x", _241:byte())
|
||
|
|
end
|
||
|
|
return ("__fnl_global__" .. str:gsub("[^%w]", _269_))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function global_unmangling(identifier)
|
||
|
|
local _271_0 = string.match(identifier, "^__fnl_global__(.*)$")
|
||
|
|
if (nil ~= _271_0) then
|
||
|
|
local rest = _271_0
|
||
|
|
local _272_0 = nil
|
||
|
|
local function _273_(_241)
|
||
|
|
return string.char(tonumber(_241:sub(2), 16))
|
||
|
|
end
|
||
|
|
_272_0 = string.gsub(rest, "_[%da-f][%da-f]", _273_)
|
||
|
|
return _272_0
|
||
|
|
else
|
||
|
|
local _ = _271_0
|
||
|
|
return identifier
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local allowed_globals = nil
|
||
|
|
local function global_allowed_3f(name)
|
||
|
|
return (not allowed_globals or utils["member?"](name, allowed_globals))
|
||
|
|
end
|
||
|
|
local function unique_mangling(original, mangling, scope, append)
|
||
|
|
if scope.unmanglings[mangling] then
|
||
|
|
return unique_mangling(original, (original .. append), scope, (append + 1))
|
||
|
|
else
|
||
|
|
return mangling
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function local_mangling(str, scope, ast, _3ftemp_manglings)
|
||
|
|
assert_compile(not utils["multi-sym?"](str), ("unexpected multi symbol " .. str), ast)
|
||
|
|
local raw = nil
|
||
|
|
if (utils["lua-keywords"][str] or str:match("^%d")) then
|
||
|
|
raw = ("_" .. str)
|
||
|
|
else
|
||
|
|
raw = str
|
||
|
|
end
|
||
|
|
local mangling = nil
|
||
|
|
local function _277_(_241)
|
||
|
|
return string.format("_%02x", _241:byte())
|
||
|
|
end
|
||
|
|
mangling = string.gsub(string.gsub(raw, "-", "_"), "[^%w_]", _277_)
|
||
|
|
local unique = unique_mangling(mangling, mangling, scope, 0)
|
||
|
|
scope.unmanglings[unique] = (scope["gensym-base"][str] or str)
|
||
|
|
do
|
||
|
|
local manglings = (_3ftemp_manglings or scope.manglings)
|
||
|
|
manglings[str] = unique
|
||
|
|
end
|
||
|
|
return unique
|
||
|
|
end
|
||
|
|
local function apply_manglings(scope, new_manglings, ast)
|
||
|
|
for raw, mangled in pairs(new_manglings) do
|
||
|
|
assert_compile(not scope.refedglobals[mangled], ("use of global " .. raw .. " is aliased by a local"), ast)
|
||
|
|
scope.manglings[raw] = mangled
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function combine_parts(parts, scope)
|
||
|
|
local ret = (scope.manglings[parts[1]] or global_mangling(parts[1]))
|
||
|
|
for i = 2, #parts do
|
||
|
|
if utils["valid-lua-identifier?"](parts[i]) then
|
||
|
|
if (parts["multi-sym-method-call"] and (i == #parts)) then
|
||
|
|
ret = (ret .. ":" .. parts[i])
|
||
|
|
else
|
||
|
|
ret = (ret .. "." .. parts[i])
|
||
|
|
end
|
||
|
|
else
|
||
|
|
ret = (ret .. "[" .. serialize_string(parts[i]) .. "]")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return ret
|
||
|
|
end
|
||
|
|
local function next_append()
|
||
|
|
utils.root.scope["gensym-append"] = ((utils.root.scope["gensym-append"] or 0) + 1)
|
||
|
|
return ("_" .. utils.root.scope["gensym-append"] .. "_")
|
||
|
|
end
|
||
|
|
local function gensym(scope, _3fbase, _3fsuffix)
|
||
|
|
local mangling = ((_3fbase or "") .. next_append() .. (_3fsuffix or ""))
|
||
|
|
while scope.unmanglings[mangling] do
|
||
|
|
mangling = ((_3fbase or "") .. next_append() .. (_3fsuffix or ""))
|
||
|
|
end
|
||
|
|
if (_3fbase and (0 < #_3fbase)) then
|
||
|
|
scope["gensym-base"][mangling] = _3fbase
|
||
|
|
end
|
||
|
|
scope.gensyms[mangling] = true
|
||
|
|
return mangling
|
||
|
|
end
|
||
|
|
local function combine_auto_gensym(parts, first)
|
||
|
|
parts[1] = first
|
||
|
|
local last = table.remove(parts)
|
||
|
|
local last2 = table.remove(parts)
|
||
|
|
local last_joiner = ((parts["multi-sym-method-call"] and ":") or ".")
|
||
|
|
table.insert(parts, (last2 .. last_joiner .. last))
|
||
|
|
return table.concat(parts, ".")
|
||
|
|
end
|
||
|
|
local function autogensym(base, scope)
|
||
|
|
local _281_0 = utils["multi-sym?"](base)
|
||
|
|
if (nil ~= _281_0) then
|
||
|
|
local parts = _281_0
|
||
|
|
return combine_auto_gensym(parts, autogensym(parts[1], scope))
|
||
|
|
else
|
||
|
|
local _ = _281_0
|
||
|
|
local function _282_()
|
||
|
|
local mangling = gensym(scope, base:sub(1, ( - 2)), "auto")
|
||
|
|
scope.autogensyms[base] = mangling
|
||
|
|
return mangling
|
||
|
|
end
|
||
|
|
return (scope.autogensyms[base] or _282_())
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function check_binding_valid(symbol, scope, ast, _3fopts)
|
||
|
|
local name = tostring(symbol)
|
||
|
|
local macro_3f = nil
|
||
|
|
do
|
||
|
|
local _284_0 = _3fopts
|
||
|
|
if (nil ~= _284_0) then
|
||
|
|
_284_0 = _284_0["macro?"]
|
||
|
|
end
|
||
|
|
macro_3f = _284_0
|
||
|
|
end
|
||
|
|
assert_compile(not name:find("&"), "invalid character: &", symbol)
|
||
|
|
assert_compile(not name:find("^%."), "invalid character: .", symbol)
|
||
|
|
assert_compile(not (scope.specials[name] or (not macro_3f and scope.macros[name])), ("local %s was overshadowed by a special form or macro"):format(name), ast)
|
||
|
|
return assert_compile(not utils["quoted?"](symbol), string.format("macro tried to bind %s without gensym", name), symbol)
|
||
|
|
end
|
||
|
|
local function declare_local(symbol, meta, scope, ast, _3ftemp_manglings)
|
||
|
|
check_binding_valid(symbol, scope, ast)
|
||
|
|
local name = tostring(symbol)
|
||
|
|
assert_compile(not utils["multi-sym?"](name), ("unexpected multi symbol " .. name), ast)
|
||
|
|
scope.symmeta[name] = meta
|
||
|
|
return local_mangling(name, scope, ast, _3ftemp_manglings)
|
||
|
|
end
|
||
|
|
local function hashfn_arg_name(name, multi_sym_parts, scope)
|
||
|
|
if not scope.hashfn then
|
||
|
|
return nil
|
||
|
|
elseif (name == "$") then
|
||
|
|
return "$1"
|
||
|
|
elseif multi_sym_parts then
|
||
|
|
if (multi_sym_parts and (multi_sym_parts[1] == "$")) then
|
||
|
|
multi_sym_parts[1] = "$1"
|
||
|
|
end
|
||
|
|
return table.concat(multi_sym_parts, ".")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function symbol_to_expression(symbol, scope, _3freference_3f)
|
||
|
|
utils.hook("symbol-to-expression", symbol, scope, _3freference_3f)
|
||
|
|
local name = symbol[1]
|
||
|
|
local multi_sym_parts = utils["multi-sym?"](name)
|
||
|
|
local name0 = (hashfn_arg_name(name, multi_sym_parts, scope) or name)
|
||
|
|
local parts = (multi_sym_parts or {name0})
|
||
|
|
local etype = (((1 < #parts) and "expression") or "sym")
|
||
|
|
local local_3f = scope.manglings[parts[1]]
|
||
|
|
if (local_3f and scope.symmeta[parts[1]]) then
|
||
|
|
scope.symmeta[parts[1]]["used"] = true
|
||
|
|
end
|
||
|
|
assert_compile(not scope.macros[parts[1]], "tried to reference a macro without calling it", symbol)
|
||
|
|
assert_compile((not scope.specials[parts[1]] or ("require" == parts[1])), "tried to reference a special form without calling it", symbol)
|
||
|
|
assert_compile((not _3freference_3f or local_3f or ("_ENV" == parts[1]) or global_allowed_3f(parts[1])), ("unknown identifier: " .. tostring(parts[1])), symbol)
|
||
|
|
if (allowed_globals and not local_3f and scope.parent) then
|
||
|
|
scope.parent.refedglobals[parts[1]] = true
|
||
|
|
end
|
||
|
|
return utils.expr(combine_parts(parts, scope), etype)
|
||
|
|
end
|
||
|
|
local function emit(chunk, out, _3fast)
|
||
|
|
if (type(out) == "table") then
|
||
|
|
return table.insert(chunk, out)
|
||
|
|
else
|
||
|
|
return table.insert(chunk, {ast = _3fast, leaf = out})
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function peephole(chunk)
|
||
|
|
if chunk.leaf then
|
||
|
|
return chunk
|
||
|
|
elseif ((3 <= #chunk) and (chunk[(#chunk - 2)].leaf == "do") and not chunk[(#chunk - 1)].leaf and (chunk[#chunk].leaf == "end")) then
|
||
|
|
local kid = peephole(chunk[(#chunk - 1)])
|
||
|
|
local new_chunk = {ast = chunk.ast}
|
||
|
|
for i = 1, (#chunk - 3) do
|
||
|
|
table.insert(new_chunk, peephole(chunk[i]))
|
||
|
|
end
|
||
|
|
for i = 1, #kid do
|
||
|
|
table.insert(new_chunk, kid[i])
|
||
|
|
end
|
||
|
|
return new_chunk
|
||
|
|
else
|
||
|
|
return utils.map(chunk, peephole)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function flatten_chunk_correlated(main_chunk, options)
|
||
|
|
local function flatten(chunk, out, last_line, file)
|
||
|
|
local last_line0 = last_line
|
||
|
|
if chunk.leaf then
|
||
|
|
out[last_line0] = ((out[last_line0] or "") .. " " .. chunk.leaf)
|
||
|
|
else
|
||
|
|
for _, subchunk in ipairs(chunk) do
|
||
|
|
if (subchunk.leaf or (0 < #subchunk)) then
|
||
|
|
local source = utils["ast-source"](subchunk.ast)
|
||
|
|
if (file == source.filename) then
|
||
|
|
last_line0 = math.max(last_line0, (source.line or 0))
|
||
|
|
end
|
||
|
|
last_line0 = flatten(subchunk, out, last_line0, file)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return last_line0
|
||
|
|
end
|
||
|
|
local out = {}
|
||
|
|
local last = flatten(main_chunk, out, 1, options.filename)
|
||
|
|
for i = 1, last do
|
||
|
|
if (out[i] == nil) then
|
||
|
|
out[i] = ""
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return table.concat(out, "\n")
|
||
|
|
end
|
||
|
|
local function flatten_chunk(file_sourcemap, chunk, tab, depth)
|
||
|
|
if chunk.leaf then
|
||
|
|
local _296_ = utils["ast-source"](chunk.ast)
|
||
|
|
local filename = _296_["filename"]
|
||
|
|
local line = _296_["line"]
|
||
|
|
table.insert(file_sourcemap, {filename, line})
|
||
|
|
return chunk.leaf
|
||
|
|
else
|
||
|
|
local tab0 = nil
|
||
|
|
do
|
||
|
|
local _297_0 = tab
|
||
|
|
if (_297_0 == true) then
|
||
|
|
tab0 = " "
|
||
|
|
elseif (_297_0 == false) then
|
||
|
|
tab0 = ""
|
||
|
|
elseif (_297_0 == tab) then
|
||
|
|
tab0 = tab
|
||
|
|
elseif (_297_0 == nil) then
|
||
|
|
tab0 = ""
|
||
|
|
else
|
||
|
|
tab0 = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parter(c)
|
||
|
|
if (c.leaf or (0 < #c)) then
|
||
|
|
local sub = flatten_chunk(file_sourcemap, c, tab0, (depth + 1))
|
||
|
|
if (0 < depth) then
|
||
|
|
return (tab0 .. sub:gsub("\n", ("\n" .. tab0)))
|
||
|
|
else
|
||
|
|
return sub
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return table.concat(utils.map(chunk, parter), "\n")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local sourcemap = {}
|
||
|
|
local function make_short_src(source)
|
||
|
|
local source0 = source:gsub("\n", " ")
|
||
|
|
if (#source0 <= 49) then
|
||
|
|
return ("[fennel \"" .. source0 .. "\"]")
|
||
|
|
else
|
||
|
|
return ("[fennel \"" .. source0:sub(1, 46) .. "...\"]")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function flatten(chunk, options)
|
||
|
|
local chunk0 = peephole(chunk)
|
||
|
|
if options.correlate then
|
||
|
|
return flatten_chunk_correlated(chunk0, options), {}
|
||
|
|
else
|
||
|
|
local file_sourcemap = {}
|
||
|
|
local src = flatten_chunk(file_sourcemap, chunk0, options.indent, 0)
|
||
|
|
file_sourcemap.short_src = (options.filename or make_short_src((options.source or src)))
|
||
|
|
if options.filename then
|
||
|
|
file_sourcemap.key = ("@" .. options.filename)
|
||
|
|
else
|
||
|
|
file_sourcemap.key = src
|
||
|
|
end
|
||
|
|
sourcemap[file_sourcemap.key] = file_sourcemap
|
||
|
|
return src, file_sourcemap
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function make_metadata()
|
||
|
|
local function _305_(self, tgt, _3fkey)
|
||
|
|
if self[tgt] then
|
||
|
|
if (nil ~= _3fkey) then
|
||
|
|
return self[tgt][_3fkey]
|
||
|
|
else
|
||
|
|
return self[tgt]
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _308_(self, tgt, key, value)
|
||
|
|
self[tgt] = (self[tgt] or {})
|
||
|
|
self[tgt][key] = value
|
||
|
|
return tgt
|
||
|
|
end
|
||
|
|
local function _309_(self, tgt, ...)
|
||
|
|
local kv_len = select("#", ...)
|
||
|
|
local kvs = {...}
|
||
|
|
if ((kv_len % 2) ~= 0) then
|
||
|
|
error("metadata:setall() expected even number of k/v pairs")
|
||
|
|
end
|
||
|
|
self[tgt] = (self[tgt] or {})
|
||
|
|
for i = 1, kv_len, 2 do
|
||
|
|
self[tgt][kvs[i]] = kvs[(i + 1)]
|
||
|
|
end
|
||
|
|
return tgt
|
||
|
|
end
|
||
|
|
return setmetatable({}, {__index = {get = _305_, set = _308_, setall = _309_}, __mode = "k"})
|
||
|
|
end
|
||
|
|
local function exprs1(exprs)
|
||
|
|
return table.concat(utils.map(exprs, tostring), ", ")
|
||
|
|
end
|
||
|
|
local function keep_side_effects(exprs, chunk, start, ast)
|
||
|
|
local start0 = (start or 1)
|
||
|
|
for j = start0, #exprs do
|
||
|
|
local se = exprs[j]
|
||
|
|
if ((se.type == "expression") and (se[1] ~= "nil")) then
|
||
|
|
emit(chunk, string.format("do local _ = %s end", tostring(se)), ast)
|
||
|
|
elseif (se.type == "statement") then
|
||
|
|
local code = tostring(se)
|
||
|
|
local disambiguated = nil
|
||
|
|
if (code:byte() == 40) then
|
||
|
|
disambiguated = ("do end " .. code)
|
||
|
|
else
|
||
|
|
disambiguated = code
|
||
|
|
end
|
||
|
|
emit(chunk, disambiguated, ast)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function handle_compile_opts(exprs, parent, opts, ast)
|
||
|
|
if opts.nval then
|
||
|
|
local n = opts.nval
|
||
|
|
local len = #exprs
|
||
|
|
if (n ~= len) then
|
||
|
|
if (n < len) then
|
||
|
|
keep_side_effects(exprs, parent, (n + 1), ast)
|
||
|
|
for i = (n + 1), len do
|
||
|
|
exprs[i] = nil
|
||
|
|
end
|
||
|
|
else
|
||
|
|
for i = (#exprs + 1), n do
|
||
|
|
exprs[i] = utils.expr("nil", "literal")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if opts.tail then
|
||
|
|
emit(parent, string.format("return %s", exprs1(exprs)), ast)
|
||
|
|
end
|
||
|
|
if opts.target then
|
||
|
|
local result = exprs1(exprs)
|
||
|
|
local function _317_()
|
||
|
|
if (result == "") then
|
||
|
|
return "nil"
|
||
|
|
else
|
||
|
|
return result
|
||
|
|
end
|
||
|
|
end
|
||
|
|
emit(parent, string.format("%s = %s", opts.target, _317_()), ast)
|
||
|
|
end
|
||
|
|
if (opts.tail or opts.target) then
|
||
|
|
return {returned = true}
|
||
|
|
else
|
||
|
|
exprs["returned"] = true
|
||
|
|
return exprs
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function find_macro(ast, scope)
|
||
|
|
local macro_2a = nil
|
||
|
|
do
|
||
|
|
local _320_0 = utils["sym?"](ast[1])
|
||
|
|
if (_320_0 ~= nil) then
|
||
|
|
local _321_0 = tostring(_320_0)
|
||
|
|
if (_321_0 ~= nil) then
|
||
|
|
macro_2a = scope.macros[_321_0]
|
||
|
|
else
|
||
|
|
macro_2a = _321_0
|
||
|
|
end
|
||
|
|
else
|
||
|
|
macro_2a = _320_0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local multi_sym_parts = utils["multi-sym?"](ast[1])
|
||
|
|
if (not macro_2a and multi_sym_parts) then
|
||
|
|
local nested_macro = utils["get-in"](scope.macros, multi_sym_parts)
|
||
|
|
assert_compile((not scope.macros[multi_sym_parts[1]] or (type(nested_macro) == "function")), "macro not found in imported macro module", ast)
|
||
|
|
return nested_macro
|
||
|
|
else
|
||
|
|
return macro_2a
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function propagate_trace_info(_325_0, _index, node)
|
||
|
|
local _326_ = _325_0
|
||
|
|
local byteend = _326_["byteend"]
|
||
|
|
local bytestart = _326_["bytestart"]
|
||
|
|
local filename = _326_["filename"]
|
||
|
|
local line = _326_["line"]
|
||
|
|
do
|
||
|
|
local src = utils["ast-source"](node)
|
||
|
|
if (("table" == type(node)) and (filename ~= src.filename)) then
|
||
|
|
src.filename, src.line, src["from-macro?"] = filename, line, true
|
||
|
|
src.bytestart, src.byteend = bytestart, byteend
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return ("table" == type(node))
|
||
|
|
end
|
||
|
|
local function quote_literal_nils(index, node, parent)
|
||
|
|
if (parent and utils["list?"](parent)) then
|
||
|
|
for i = 1, utils.maxn(parent) do
|
||
|
|
local _328_0 = parent[i]
|
||
|
|
if (_328_0 == nil) then
|
||
|
|
parent[i] = utils.sym("nil")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return index, node, parent
|
||
|
|
end
|
||
|
|
local function comp(f, g)
|
||
|
|
local function _331_(...)
|
||
|
|
return f(g(...))
|
||
|
|
end
|
||
|
|
return _331_
|
||
|
|
end
|
||
|
|
local function built_in_3f(m)
|
||
|
|
local found_3f = false
|
||
|
|
for _, f in pairs(scopes.global.macros) do
|
||
|
|
if found_3f then break end
|
||
|
|
found_3f = (f == m)
|
||
|
|
end
|
||
|
|
return found_3f
|
||
|
|
end
|
||
|
|
local function macroexpand_2a(ast, scope, _3fonce)
|
||
|
|
local _332_0 = nil
|
||
|
|
if utils["list?"](ast) then
|
||
|
|
_332_0 = find_macro(ast, scope)
|
||
|
|
else
|
||
|
|
_332_0 = nil
|
||
|
|
end
|
||
|
|
if (_332_0 == false) then
|
||
|
|
return ast
|
||
|
|
elseif (nil ~= _332_0) then
|
||
|
|
local macro_2a = _332_0
|
||
|
|
local old_scope = scopes.macro
|
||
|
|
local _ = nil
|
||
|
|
scopes.macro = scope
|
||
|
|
_ = nil
|
||
|
|
local ok, transformed = nil, nil
|
||
|
|
local function _334_()
|
||
|
|
return macro_2a(unpack(ast, 2))
|
||
|
|
end
|
||
|
|
local function _335_()
|
||
|
|
if built_in_3f(macro_2a) then
|
||
|
|
return tostring
|
||
|
|
else
|
||
|
|
return debug.traceback
|
||
|
|
end
|
||
|
|
end
|
||
|
|
ok, transformed = xpcall(_334_, _335_())
|
||
|
|
local function _336_(...)
|
||
|
|
return propagate_trace_info(ast, ...)
|
||
|
|
end
|
||
|
|
utils["walk-tree"](transformed, comp(_336_, quote_literal_nils))
|
||
|
|
scopes.macro = old_scope
|
||
|
|
assert_compile(ok, transformed, ast)
|
||
|
|
if (_3fonce or not transformed) then
|
||
|
|
return transformed
|
||
|
|
else
|
||
|
|
return macroexpand_2a(transformed, scope)
|
||
|
|
end
|
||
|
|
else
|
||
|
|
local _ = _332_0
|
||
|
|
return ast
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function compile_special(ast, scope, parent, opts, special)
|
||
|
|
local exprs = (special(ast, scope, parent, opts) or utils.expr("nil", "literal"))
|
||
|
|
local exprs0 = nil
|
||
|
|
if ("table" ~= type(exprs)) then
|
||
|
|
exprs0 = utils.expr(exprs, "expression")
|
||
|
|
else
|
||
|
|
exprs0 = exprs
|
||
|
|
end
|
||
|
|
local exprs2 = nil
|
||
|
|
if utils["expr?"](exprs0) then
|
||
|
|
exprs2 = {exprs0}
|
||
|
|
else
|
||
|
|
exprs2 = exprs0
|
||
|
|
end
|
||
|
|
if not exprs2.returned then
|
||
|
|
return handle_compile_opts(exprs2, parent, opts, ast)
|
||
|
|
elseif (opts.tail or opts.target) then
|
||
|
|
return {returned = true}
|
||
|
|
else
|
||
|
|
return exprs2
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function compile_function_call(ast, scope, parent, opts, compile1, len)
|
||
|
|
local fargs = {}
|
||
|
|
local fcallee = compile1(ast[1], scope, parent, {nval = 1})[1]
|
||
|
|
assert_compile((utils["sym?"](ast[1]) or utils["list?"](ast[1]) or ("string" == type(ast[1]))), ("cannot call literal value " .. tostring(ast[1])), ast)
|
||
|
|
for i = 2, len do
|
||
|
|
local subexprs = nil
|
||
|
|
local _342_
|
||
|
|
if (i ~= len) then
|
||
|
|
_342_ = 1
|
||
|
|
else
|
||
|
|
_342_ = nil
|
||
|
|
end
|
||
|
|
subexprs = compile1(ast[i], scope, parent, {nval = _342_})
|
||
|
|
table.insert(fargs, subexprs[1])
|
||
|
|
if (i == len) then
|
||
|
|
for j = 2, #subexprs do
|
||
|
|
table.insert(fargs, subexprs[j])
|
||
|
|
end
|
||
|
|
else
|
||
|
|
keep_side_effects(subexprs, parent, 2, ast[i])
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local pat = nil
|
||
|
|
if ("string" == type(ast[1])) then
|
||
|
|
pat = "(%s)(%s)"
|
||
|
|
else
|
||
|
|
pat = "%s(%s)"
|
||
|
|
end
|
||
|
|
local call = string.format(pat, tostring(fcallee), exprs1(fargs))
|
||
|
|
return handle_compile_opts({utils.expr(call, "statement")}, parent, opts, ast)
|
||
|
|
end
|
||
|
|
local function compile_call(ast, scope, parent, opts, compile1)
|
||
|
|
utils.hook("call", ast, scope)
|
||
|
|
local len = #ast
|
||
|
|
local first = ast[1]
|
||
|
|
local multi_sym_parts = utils["multi-sym?"](first)
|
||
|
|
local special = (utils["sym?"](first) and scope.specials[tostring(first)])
|
||
|
|
assert_compile((0 < len), "expected a function, macro, or special to call", ast)
|
||
|
|
if special then
|
||
|
|
return compile_special(ast, scope, parent, opts, special)
|
||
|
|
elseif (multi_sym_parts and multi_sym_parts["multi-sym-method-call"]) then
|
||
|
|
local table_with_method = table.concat({unpack(multi_sym_parts, 1, (#multi_sym_parts - 1))}, ".")
|
||
|
|
local method_to_call = multi_sym_parts[#multi_sym_parts]
|
||
|
|
local new_ast = utils.list(utils.sym(":", ast), utils.sym(table_with_method, ast), method_to_call, select(2, unpack(ast)))
|
||
|
|
return compile1(new_ast, scope, parent, opts)
|
||
|
|
else
|
||
|
|
return compile_function_call(ast, scope, parent, opts, compile1, len)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function compile_varg(ast, scope, parent, opts)
|
||
|
|
local _347_
|
||
|
|
if scope.hashfn then
|
||
|
|
_347_ = "use $... in hashfn"
|
||
|
|
else
|
||
|
|
_347_ = "unexpected vararg"
|
||
|
|
end
|
||
|
|
assert_compile(scope.vararg, _347_, ast)
|
||
|
|
return handle_compile_opts({utils.expr("...", "varg")}, parent, opts, ast)
|
||
|
|
end
|
||
|
|
local function compile_sym(ast, scope, parent, opts)
|
||
|
|
local multi_sym_parts = utils["multi-sym?"](ast)
|
||
|
|
assert_compile(not (multi_sym_parts and multi_sym_parts["multi-sym-method-call"]), "multisym method calls may only be in call position", ast)
|
||
|
|
local e = nil
|
||
|
|
if (ast[1] == "nil") then
|
||
|
|
e = utils.expr("nil", "literal")
|
||
|
|
else
|
||
|
|
e = symbol_to_expression(ast, scope, true)
|
||
|
|
end
|
||
|
|
return handle_compile_opts({e}, parent, opts, ast)
|
||
|
|
end
|
||
|
|
local function serialize_number(n)
|
||
|
|
local _350_0 = string.gsub(tostring(n), ",", ".")
|
||
|
|
return _350_0
|
||
|
|
end
|
||
|
|
local function compile_scalar(ast, _scope, parent, opts)
|
||
|
|
local serialize = nil
|
||
|
|
do
|
||
|
|
local _351_0 = type(ast)
|
||
|
|
if (_351_0 == "nil") then
|
||
|
|
serialize = tostring
|
||
|
|
elseif (_351_0 == "boolean") then
|
||
|
|
serialize = tostring
|
||
|
|
elseif (_351_0 == "string") then
|
||
|
|
serialize = serialize_string
|
||
|
|
elseif (_351_0 == "number") then
|
||
|
|
serialize = serialize_number
|
||
|
|
else
|
||
|
|
serialize = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return handle_compile_opts({utils.expr(serialize(ast), "literal")}, parent, opts)
|
||
|
|
end
|
||
|
|
local function compile_table(ast, scope, parent, opts, compile1)
|
||
|
|
local function escape_key(k)
|
||
|
|
if ((type(k) == "string") and utils["valid-lua-identifier?"](k)) then
|
||
|
|
return k
|
||
|
|
else
|
||
|
|
local _353_ = compile1(k, scope, parent, {nval = 1})
|
||
|
|
local compiled = _353_[1]
|
||
|
|
return ("[" .. tostring(compiled) .. "]")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local keys = {}
|
||
|
|
local buffer = nil
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for i, elem in ipairs(ast) do
|
||
|
|
local val_19_ = nil
|
||
|
|
do
|
||
|
|
local nval = ((nil ~= ast[(i + 1)]) and 1)
|
||
|
|
keys[i] = true
|
||
|
|
val_19_ = exprs1(compile1(elem, scope, parent, {nval = nval}))
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
buffer = tbl_17_
|
||
|
|
end
|
||
|
|
do
|
||
|
|
local tbl_17_ = buffer
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for k, v in utils.stablepairs(ast) do
|
||
|
|
local val_19_ = nil
|
||
|
|
if not keys[k] then
|
||
|
|
local _356_ = compile1(ast[k], scope, parent, {nval = 1})
|
||
|
|
local v0 = _356_[1]
|
||
|
|
val_19_ = string.format("%s = %s", escape_key(k), tostring(v0))
|
||
|
|
else
|
||
|
|
val_19_ = nil
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return handle_compile_opts({utils.expr(("{" .. table.concat(buffer, ", ") .. "}"), "expression")}, parent, opts, ast)
|
||
|
|
end
|
||
|
|
local function compile1(ast, scope, parent, _3fopts)
|
||
|
|
local opts = (_3fopts or {})
|
||
|
|
local ast0 = macroexpand_2a(ast, scope)
|
||
|
|
if utils["list?"](ast0) then
|
||
|
|
return compile_call(ast0, scope, parent, opts, compile1)
|
||
|
|
elseif utils["varg?"](ast0) then
|
||
|
|
return compile_varg(ast0, scope, parent, opts)
|
||
|
|
elseif utils["sym?"](ast0) then
|
||
|
|
return compile_sym(ast0, scope, parent, opts)
|
||
|
|
elseif (type(ast0) == "table") then
|
||
|
|
return compile_table(ast0, scope, parent, opts, compile1)
|
||
|
|
elseif ((type(ast0) == "nil") or (type(ast0) == "boolean") or (type(ast0) == "number") or (type(ast0) == "string")) then
|
||
|
|
return compile_scalar(ast0, scope, parent, opts)
|
||
|
|
else
|
||
|
|
return assert_compile(false, ("could not compile value of type " .. type(ast0)), ast0)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function destructure(to, from, ast, scope, parent, opts)
|
||
|
|
local opts0 = (opts or {})
|
||
|
|
local _360_ = opts0
|
||
|
|
local declaration = _360_["declaration"]
|
||
|
|
local forceglobal = _360_["forceglobal"]
|
||
|
|
local forceset = _360_["forceset"]
|
||
|
|
local isvar = _360_["isvar"]
|
||
|
|
local symtype = _360_["symtype"]
|
||
|
|
local symtype0 = ("_" .. (symtype or "dst"))
|
||
|
|
local setter = nil
|
||
|
|
if declaration then
|
||
|
|
setter = "local %s = %s"
|
||
|
|
else
|
||
|
|
setter = "%s = %s"
|
||
|
|
end
|
||
|
|
local new_manglings = {}
|
||
|
|
local function getname(symbol, up1)
|
||
|
|
local raw = symbol[1]
|
||
|
|
assert_compile(not (opts0.nomulti and utils["multi-sym?"](raw)), ("unexpected multi symbol " .. raw), up1)
|
||
|
|
if declaration then
|
||
|
|
return declare_local(symbol, nil, scope, symbol, new_manglings)
|
||
|
|
else
|
||
|
|
local parts = (utils["multi-sym?"](raw) or {raw})
|
||
|
|
local _362_ = parts
|
||
|
|
local first = _362_[1]
|
||
|
|
local meta = scope.symmeta[first]
|
||
|
|
assert_compile(not raw:find(":"), "cannot set method sym", symbol)
|
||
|
|
if ((#parts == 1) and not forceset) then
|
||
|
|
assert_compile(not (forceglobal and meta), string.format("global %s conflicts with local", tostring(symbol)), symbol)
|
||
|
|
assert_compile(not (meta and not meta.var), ("expected var " .. raw), symbol)
|
||
|
|
end
|
||
|
|
assert_compile((meta or not opts0.noundef or (scope.hashfn and ("$" == first)) or global_allowed_3f(first)), ("expected local " .. first), symbol)
|
||
|
|
if forceglobal then
|
||
|
|
assert_compile(not scope.symmeta[scope.unmanglings[raw]], ("global " .. raw .. " conflicts with local"), symbol)
|
||
|
|
scope.manglings[raw] = global_mangling(raw)
|
||
|
|
scope.unmanglings[global_mangling(raw)] = raw
|
||
|
|
if allowed_globals then
|
||
|
|
table.insert(allowed_globals, raw)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return symbol_to_expression(symbol, scope)[1]
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function compile_top_target(lvalues)
|
||
|
|
local inits = nil
|
||
|
|
local function _367_(_241)
|
||
|
|
if scope.manglings[_241] then
|
||
|
|
return _241
|
||
|
|
else
|
||
|
|
return "nil"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
inits = utils.map(lvalues, _367_)
|
||
|
|
local init = table.concat(inits, ", ")
|
||
|
|
local lvalue = table.concat(lvalues, ", ")
|
||
|
|
local plast = parent[#parent]
|
||
|
|
local plen = #parent
|
||
|
|
local ret = compile1(from, scope, parent, {target = lvalue})
|
||
|
|
if declaration then
|
||
|
|
for pi = plen, #parent do
|
||
|
|
if (parent[pi] == plast) then
|
||
|
|
plen = pi
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ((#parent == (plen + 1)) and parent[#parent].leaf) then
|
||
|
|
parent[#parent]["leaf"] = ("local " .. parent[#parent].leaf)
|
||
|
|
elseif (init == "nil") then
|
||
|
|
table.insert(parent, (plen + 1), {ast = ast, leaf = ("local " .. lvalue)})
|
||
|
|
else
|
||
|
|
table.insert(parent, (plen + 1), {ast = ast, leaf = ("local " .. lvalue .. " = " .. init)})
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return ret
|
||
|
|
end
|
||
|
|
local function destructure_sym(left, rightexprs, up1, top_3f)
|
||
|
|
local lname = getname(left, up1)
|
||
|
|
check_binding_valid(left, scope, left)
|
||
|
|
if top_3f then
|
||
|
|
compile_top_target({lname})
|
||
|
|
else
|
||
|
|
emit(parent, setter:format(lname, exprs1(rightexprs)), left)
|
||
|
|
end
|
||
|
|
if declaration then
|
||
|
|
scope.symmeta[tostring(left)] = {var = isvar}
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local unpack_fn = "function (t, k, e)\n local mt = getmetatable(t)\n if 'table' == type(mt) and mt.__fennelrest then\n return mt.__fennelrest(t, k)\n elseif e then\n local rest = {}\n for k, v in pairs(t) do\n if not e[k] then rest[k] = v end\n end\n return rest\n else\n return {(table.unpack or unpack)(t, k)}\n end\n end"
|
||
|
|
local function destructure_kv_rest(s, v, left, excluded_keys, destructure1)
|
||
|
|
local exclude_str = nil
|
||
|
|
local _374_
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, k in ipairs(excluded_keys) do
|
||
|
|
local val_19_ = string.format("[%s] = true", serialize_string(k))
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_374_ = tbl_17_
|
||
|
|
end
|
||
|
|
exclude_str = table.concat(_374_, ", ")
|
||
|
|
local subexpr = utils.expr(string.format(string.gsub(("(" .. unpack_fn .. ")(%s, %s, {%s})"), "\n%s*", " "), s, tostring(v), exclude_str), "expression")
|
||
|
|
return destructure1(v, {subexpr}, left)
|
||
|
|
end
|
||
|
|
local function destructure_rest(s, k, left, destructure1)
|
||
|
|
local unpack_str = ("(" .. unpack_fn .. ")(%s, %s)")
|
||
|
|
local formatted = string.format(string.gsub(unpack_str, "\n%s*", " "), s, k)
|
||
|
|
local subexpr = utils.expr(formatted, "expression")
|
||
|
|
assert_compile((utils["sequence?"](left) and (nil == left[(k + 2)])), "expected rest argument before last parameter", left)
|
||
|
|
return destructure1(left[(k + 1)], {subexpr}, left)
|
||
|
|
end
|
||
|
|
local function destructure_table(left, rightexprs, top_3f, destructure1)
|
||
|
|
local s = gensym(scope, symtype0)
|
||
|
|
local right = nil
|
||
|
|
do
|
||
|
|
local _376_0 = nil
|
||
|
|
if top_3f then
|
||
|
|
_376_0 = exprs1(compile1(from, scope, parent))
|
||
|
|
else
|
||
|
|
_376_0 = exprs1(rightexprs)
|
||
|
|
end
|
||
|
|
if (_376_0 == "") then
|
||
|
|
right = "nil"
|
||
|
|
elseif (nil ~= _376_0) then
|
||
|
|
local right0 = _376_0
|
||
|
|
right = right0
|
||
|
|
else
|
||
|
|
right = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local excluded_keys = {}
|
||
|
|
emit(parent, string.format("local %s = %s", s, right), left)
|
||
|
|
for k, v in utils.stablepairs(left) do
|
||
|
|
if not (("number" == type(k)) and tostring(left[(k - 1)]):find("^&")) then
|
||
|
|
if (utils["sym?"](k) and (tostring(k) == "&")) then
|
||
|
|
destructure_kv_rest(s, v, left, excluded_keys, destructure1)
|
||
|
|
elseif (utils["sym?"](v) and (tostring(v) == "&")) then
|
||
|
|
destructure_rest(s, k, left, destructure1)
|
||
|
|
elseif (utils["sym?"](k) and (tostring(k) == "&as")) then
|
||
|
|
destructure_sym(v, {utils.expr(tostring(s))}, left)
|
||
|
|
elseif (utils["sequence?"](left) and (tostring(v) == "&as")) then
|
||
|
|
local _, next_sym, trailing = select(k, unpack(left))
|
||
|
|
assert_compile((nil == trailing), "expected &as argument before last parameter", left)
|
||
|
|
destructure_sym(next_sym, {utils.expr(tostring(s))}, left)
|
||
|
|
else
|
||
|
|
local key = nil
|
||
|
|
if (type(k) == "string") then
|
||
|
|
key = serialize_string(k)
|
||
|
|
else
|
||
|
|
key = k
|
||
|
|
end
|
||
|
|
local subexpr = utils.expr(string.format("%s[%s]", s, key), "expression")
|
||
|
|
if (type(k) == "string") then
|
||
|
|
table.insert(excluded_keys, k)
|
||
|
|
end
|
||
|
|
destructure1(v, {subexpr}, left)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function destructure_values(left, up1, top_3f, destructure1)
|
||
|
|
local left_names, tables = {}, {}
|
||
|
|
for i, name in ipairs(left) do
|
||
|
|
if utils["sym?"](name) then
|
||
|
|
table.insert(left_names, getname(name, up1))
|
||
|
|
else
|
||
|
|
local symname = gensym(scope, symtype0)
|
||
|
|
table.insert(left_names, symname)
|
||
|
|
tables[i] = {name, utils.expr(symname, "sym")}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
assert_compile(left[1], "must provide at least one value", left)
|
||
|
|
assert_compile(top_3f, "can't nest multi-value destructuring", left)
|
||
|
|
compile_top_target(left_names)
|
||
|
|
if declaration then
|
||
|
|
for _, sym in ipairs(left) do
|
||
|
|
if utils["sym?"](sym) then
|
||
|
|
scope.symmeta[tostring(sym)] = {var = isvar}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
for _, pair in utils.stablepairs(tables) do
|
||
|
|
destructure1(pair[1], {pair[2]}, left)
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function destructure1(left, rightexprs, up1, top_3f)
|
||
|
|
if (utils["sym?"](left) and (left[1] ~= "nil")) then
|
||
|
|
destructure_sym(left, rightexprs, up1, top_3f)
|
||
|
|
elseif utils["table?"](left) then
|
||
|
|
destructure_table(left, rightexprs, top_3f, destructure1)
|
||
|
|
elseif utils["list?"](left) then
|
||
|
|
destructure_values(left, up1, top_3f, destructure1)
|
||
|
|
else
|
||
|
|
assert_compile(false, string.format("unable to bind %s %s", type(left), tostring(left)), (((type(up1[2]) == "table") and up1[2]) or up1))
|
||
|
|
end
|
||
|
|
if top_3f then
|
||
|
|
return {returned = true}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local ret = destructure1(to, nil, ast, true)
|
||
|
|
utils.hook("destructure", from, to, scope, opts0)
|
||
|
|
apply_manglings(scope, new_manglings, ast)
|
||
|
|
return ret
|
||
|
|
end
|
||
|
|
local function require_include(ast, scope, parent, opts)
|
||
|
|
opts.fallback = function(e, no_warn)
|
||
|
|
if (not no_warn and ("literal" == e.type)) then
|
||
|
|
utils.warn(("include module not found, falling back to require: %s"):format(tostring(e)))
|
||
|
|
end
|
||
|
|
return utils.expr(string.format("require(%s)", tostring(e)), "statement")
|
||
|
|
end
|
||
|
|
return scopes.global.specials.include(ast, scope, parent, opts)
|
||
|
|
end
|
||
|
|
local function opts_for_compile(options)
|
||
|
|
local opts = utils.copy(options)
|
||
|
|
opts.indent = (opts.indent or " ")
|
||
|
|
allowed_globals = opts.allowedGlobals
|
||
|
|
return opts
|
||
|
|
end
|
||
|
|
local function compile_asts(asts, options)
|
||
|
|
local old_globals = allowed_globals
|
||
|
|
local opts = opts_for_compile(options)
|
||
|
|
local scope = (opts.scope or make_scope(scopes.global))
|
||
|
|
local chunk = {}
|
||
|
|
if opts.requireAsInclude then
|
||
|
|
scope.specials.require = require_include
|
||
|
|
end
|
||
|
|
local _390_ = utils.root
|
||
|
|
_390_["set-reset"](_390_)
|
||
|
|
utils.root.chunk, utils.root.scope, utils.root.options = chunk, scope, opts
|
||
|
|
for i = 1, #asts do
|
||
|
|
local exprs = compile1(asts[i], scope, chunk, {nval = (((i < #asts) and 0) or nil), tail = (i == #asts)})
|
||
|
|
keep_side_effects(exprs, chunk, nil, asts[i])
|
||
|
|
if (i == #asts) then
|
||
|
|
utils.hook("chunk", asts[i], scope)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
allowed_globals = old_globals
|
||
|
|
utils.root.reset()
|
||
|
|
return flatten(chunk, opts)
|
||
|
|
end
|
||
|
|
local function compile_stream(stream, opts)
|
||
|
|
local asts = nil
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, ast in parser.parser(stream, opts.filename, opts) do
|
||
|
|
local val_19_ = ast
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
asts = tbl_17_
|
||
|
|
end
|
||
|
|
return compile_asts(asts, opts)
|
||
|
|
end
|
||
|
|
local function compile_string(str, _3fopts)
|
||
|
|
return compile_stream(parser["string-stream"](str, (_3fopts or {})), (_3fopts or {}))
|
||
|
|
end
|
||
|
|
local function compile(ast, _3fopts)
|
||
|
|
return compile_asts({ast}, _3fopts)
|
||
|
|
end
|
||
|
|
local function traceback_frame(info)
|
||
|
|
if ((info.what == "C") and info.name) then
|
||
|
|
return string.format(" [C]: in function '%s'", info.name)
|
||
|
|
elseif (info.what == "C") then
|
||
|
|
return " [C]: in ?"
|
||
|
|
else
|
||
|
|
local remap = sourcemap[info.source]
|
||
|
|
if (remap and remap[info.currentline]) then
|
||
|
|
if ((remap[info.currentline][1] or "unknown") ~= "unknown") then
|
||
|
|
info.short_src = sourcemap[("@" .. remap[info.currentline][1])].short_src
|
||
|
|
else
|
||
|
|
info.short_src = remap.short_src
|
||
|
|
end
|
||
|
|
info.currentline = (remap[info.currentline][2] or -1)
|
||
|
|
end
|
||
|
|
if (info.what == "Lua") then
|
||
|
|
local function _395_()
|
||
|
|
if info.name then
|
||
|
|
return ("'" .. info.name .. "'")
|
||
|
|
else
|
||
|
|
return "?"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return string.format(" %s:%d: in function %s", info.short_src, info.currentline, _395_())
|
||
|
|
elseif (info.short_src == "(tail call)") then
|
||
|
|
return " (tail call)"
|
||
|
|
else
|
||
|
|
return string.format(" %s:%d: in main chunk", info.short_src, info.currentline)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function traceback(_3fmsg, _3fstart)
|
||
|
|
local msg = tostring((_3fmsg or ""))
|
||
|
|
if ((msg:find("^%g+:%d+:%d+ Compile error:.*") or msg:find("^%g+:%d+:%d+ Parse error:.*")) and not utils["debug-on?"]("trace")) then
|
||
|
|
return msg
|
||
|
|
else
|
||
|
|
local lines = {}
|
||
|
|
if (msg:find("^%g+:%d+:%d+ Compile error:") or msg:find("^%g+:%d+:%d+ Parse error:")) then
|
||
|
|
table.insert(lines, msg)
|
||
|
|
else
|
||
|
|
local newmsg = msg:gsub("^[^:]*:%d+:%s+", "runtime error: ")
|
||
|
|
table.insert(lines, newmsg)
|
||
|
|
end
|
||
|
|
table.insert(lines, "stack traceback:")
|
||
|
|
local done_3f, level = false, (_3fstart or 2)
|
||
|
|
while not done_3f do
|
||
|
|
do
|
||
|
|
local _399_0 = debug.getinfo(level, "Sln")
|
||
|
|
if (_399_0 == nil) then
|
||
|
|
done_3f = true
|
||
|
|
elseif (nil ~= _399_0) then
|
||
|
|
local info = _399_0
|
||
|
|
table.insert(lines, traceback_frame(info))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
level = (level + 1)
|
||
|
|
end
|
||
|
|
return table.concat(lines, "\n")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function entry_transform(fk, fv)
|
||
|
|
local function _402_(k, v)
|
||
|
|
if (type(k) == "number") then
|
||
|
|
return k, fv(v)
|
||
|
|
else
|
||
|
|
return fk(k), fv(v)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return _402_
|
||
|
|
end
|
||
|
|
local function mixed_concat(t, joiner)
|
||
|
|
local seen = {}
|
||
|
|
local ret, s = "", ""
|
||
|
|
for k, v in ipairs(t) do
|
||
|
|
table.insert(seen, k)
|
||
|
|
ret = (ret .. s .. v)
|
||
|
|
s = joiner
|
||
|
|
end
|
||
|
|
for k, v in utils.stablepairs(t) do
|
||
|
|
if not seen[k] then
|
||
|
|
ret = (ret .. s .. "[" .. k .. "]" .. "=" .. v)
|
||
|
|
s = joiner
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return ret
|
||
|
|
end
|
||
|
|
local function do_quote(form, scope, parent, runtime_3f)
|
||
|
|
local function q(x)
|
||
|
|
return do_quote(x, scope, parent, runtime_3f)
|
||
|
|
end
|
||
|
|
if utils["varg?"](form) then
|
||
|
|
assert_compile(not runtime_3f, "quoted ... may only be used at compile time", form)
|
||
|
|
return "_VARARG"
|
||
|
|
elseif utils["sym?"](form) then
|
||
|
|
local filename = nil
|
||
|
|
if form.filename then
|
||
|
|
filename = string.format("%q", form.filename)
|
||
|
|
else
|
||
|
|
filename = "nil"
|
||
|
|
end
|
||
|
|
local symstr = tostring(form)
|
||
|
|
assert_compile(not runtime_3f, "symbols may only be used at compile time", form)
|
||
|
|
if (symstr:find("#$") or symstr:find("#[:.]")) then
|
||
|
|
return string.format("sym('%s', {filename=%s, line=%s})", autogensym(symstr, scope), filename, (form.line or "nil"))
|
||
|
|
else
|
||
|
|
return string.format("sym('%s', {quoted=true, filename=%s, line=%s})", symstr, filename, (form.line or "nil"))
|
||
|
|
end
|
||
|
|
elseif (utils["list?"](form) and utils["sym?"](form[1]) and (tostring(form[1]) == "unquote")) then
|
||
|
|
local payload = form[2]
|
||
|
|
local res = unpack(compile1(payload, scope, parent))
|
||
|
|
return res[1]
|
||
|
|
elseif utils["list?"](form) then
|
||
|
|
local mapped = nil
|
||
|
|
local function _407_()
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
mapped = utils.kvmap(form, entry_transform(_407_, q))
|
||
|
|
local filename = nil
|
||
|
|
if form.filename then
|
||
|
|
filename = string.format("%q", form.filename)
|
||
|
|
else
|
||
|
|
filename = "nil"
|
||
|
|
end
|
||
|
|
assert_compile(not runtime_3f, "lists may only be used at compile time", form)
|
||
|
|
return string.format(("setmetatable({filename=%s, line=%s, bytestart=%s, %s}" .. ", getmetatable(list()))"), filename, (form.line or "nil"), (form.bytestart or "nil"), mixed_concat(mapped, ", "))
|
||
|
|
elseif utils["sequence?"](form) then
|
||
|
|
local mapped = utils.kvmap(form, entry_transform(q, q))
|
||
|
|
local source = getmetatable(form)
|
||
|
|
local filename = nil
|
||
|
|
if source.filename then
|
||
|
|
filename = string.format("%q", source.filename)
|
||
|
|
else
|
||
|
|
filename = "nil"
|
||
|
|
end
|
||
|
|
local _410_
|
||
|
|
if source then
|
||
|
|
_410_ = source.line
|
||
|
|
else
|
||
|
|
_410_ = "nil"
|
||
|
|
end
|
||
|
|
return string.format("setmetatable({%s}, {filename=%s, line=%s, sequence=%s})", mixed_concat(mapped, ", "), filename, _410_, "(getmetatable(sequence()))['sequence']")
|
||
|
|
elseif (type(form) == "table") then
|
||
|
|
local mapped = utils.kvmap(form, entry_transform(q, q))
|
||
|
|
local source = getmetatable(form)
|
||
|
|
local filename = nil
|
||
|
|
if source.filename then
|
||
|
|
filename = string.format("%q", source.filename)
|
||
|
|
else
|
||
|
|
filename = "nil"
|
||
|
|
end
|
||
|
|
local function _413_()
|
||
|
|
if source then
|
||
|
|
return source.line
|
||
|
|
else
|
||
|
|
return "nil"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return string.format("setmetatable({%s}, {filename=%s, line=%s})", mixed_concat(mapped, ", "), filename, _413_())
|
||
|
|
elseif (type(form) == "string") then
|
||
|
|
return serialize_string(form)
|
||
|
|
else
|
||
|
|
return tostring(form)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return {["apply-manglings"] = apply_manglings, ["check-binding-valid"] = check_binding_valid, ["compile-stream"] = compile_stream, ["compile-string"] = compile_string, ["declare-local"] = declare_local, ["do-quote"] = do_quote, ["global-mangling"] = global_mangling, ["global-unmangling"] = global_unmangling, ["keep-side-effects"] = keep_side_effects, ["make-scope"] = make_scope, ["require-include"] = require_include, ["symbol-to-expression"] = symbol_to_expression, assert = assert_compile, autogensym = autogensym, compile = compile, compile1 = compile1, destructure = destructure, emit = emit, gensym = gensym, macroexpand = macroexpand_2a, metadata = make_metadata(), scopes = scopes, sourcemap = sourcemap, traceback = traceback}
|
||
|
|
end
|
||
|
|
package.preload["fennel.friend"] = package.preload["fennel.friend"] or function(...)
|
||
|
|
local utils = require("fennel.utils")
|
||
|
|
local utf8_ok_3f, utf8 = pcall(require, "utf8")
|
||
|
|
local suggestions = {["$ and $... in hashfn are mutually exclusive"] = {"modifying the hashfn so it only contains $... or $, $1, $2, $3, etc"}, ["can't start multisym segment with a digit"] = {"removing the digit", "adding a non-digit before the digit"}, ["cannot call literal value"] = {"checking for typos", "checking for a missing function name", "making sure to use prefix operators, not infix"}, ["could not compile value of type "] = {"debugging the macro you're calling to return a list or table"}, ["could not read number (.*)"] = {"removing the non-digit character", "beginning the identifier with a non-digit if it is not meant to be a number"}, ["expected a function.* to call"] = {"removing the empty parentheses", "using square brackets if you want an empty table"}, ["expected at least one pattern/body pair"] = {"adding a pattern and a body to execute when the pattern matches"}, ["expected binding and iterator"] = {"making sure you haven't omitted a local name or iterator"}, ["expected binding sequence"] = {"placing a table here in square brackets containing identifiers to bind"}, ["expected body expression"] = {"putting some code in the body of this form after the bindings"}, ["expected each macro to be function"] = {"ensuring that the value for each key in your macros table contains a function", "avoid defining nested macro tables"}, ["expected even number of name/value bindings"] = {"finding where the identifier or value is missing"}, ["expected even number of pattern/body pairs"] = {"checking that every pattern has a body to go with it", "adding _ before the final body"}, ["expected even number of values in table literal"] = {"removing a key", "adding a value"}, ["expected local"] = {"looking for a typo", "looking for a local which is used out of its scope"}, ["expected macros to be table"] = {"ensuring your macro definitions return a table"}, ["expected parameters"] = {"adding function parameters as a list of identifiers in brackets"}, ["expected range to include start and stop"] = {"adding missing arguments"}, ["expected rest argument before last parameter"] = {"moving & to right before the final identifier when destructuring"}, ["expected symbol for function parameter: (.*)"] = {"changing %s to an identifier instead of a literal value"}, ["expected var (.*)"] = {"declaring %s using var instead of let/local", "introducing a new local instead of changing the value of %s"}, ["expected vararg as last parameter"] = {"moving the \"...\" to the end of the parameter list"}, ["expected whitespace before opening delimiter"] = {"adding whitespace"}, ["global (.*) conflicts with local"] = {"renaming local %s"}, ["invalid character: (.)"] = {"deleting or replacing %s", "avoiding reserved characters like \", \\, ', ~, ;, @, `, and comma"}, ["local (.*) was overshadowed by a special form or macro"] = {"renaming local %s"}, ["macro not found in macro module"] = {"checking the keys of the imported macro module's returned table"}, ["macro tried to bind (.*) without gensym"] = {"changing to %s# when introducing identifiers inside macros"}, ["malformed multisym"] = {"ensuring each period or colon is not followed by another period or colon"}, ["may only be used at compile time"] = {"moving this to inside a macro if you need to manipulate symbols/lists", "using square brackets instead of parens to construct a table"}, ["method must be last component"] = {"using a period instead of a colon for field access", "removing segments after the colon", "making the method call, then looking up the field on the result"}, ["mismatched closing delimiter (.), expected (.)"] = {"replacing %s with %s", "deleting %s", "adding matching opening delimiter earlier"}, ["missing subject"] = {"adding an item to operate on"}, ["multisym method calls may only be in call position"] = {"using a period instead of a colon to reference a table's fields", "putting parens around this"}, ["tried to reference a macro without calling it"] = {"renaming the macro so as not to conflict with locals"}, ["tried to reference a special form without calling it"] = {"making
|
||
|
|
local unpack = (table.unpack or _G.unpack)
|
||
|
|
local function suggest(msg)
|
||
|
|
local s = nil
|
||
|
|
for pat, sug in pairs(suggestions) do
|
||
|
|
if s then break end
|
||
|
|
local matches = {msg:match(pat)}
|
||
|
|
if (0 < #matches) then
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, s0 in ipairs(sug) do
|
||
|
|
local val_19_ = s0:format(unpack(matches))
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
s = tbl_17_
|
||
|
|
else
|
||
|
|
s = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return s
|
||
|
|
end
|
||
|
|
local function read_line(filename, line, _3fsource)
|
||
|
|
if _3fsource then
|
||
|
|
local matcher = string.gmatch((_3fsource .. "\n"), "(.-)(\13?\n)")
|
||
|
|
for _ = 2, line do
|
||
|
|
matcher()
|
||
|
|
end
|
||
|
|
return matcher()
|
||
|
|
else
|
||
|
|
local f = assert(_G.io.open(filename))
|
||
|
|
local function close_handlers_10_(ok_11_, ...)
|
||
|
|
f:close()
|
||
|
|
if ok_11_ then
|
||
|
|
return ...
|
||
|
|
else
|
||
|
|
return error(..., 0)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _184_()
|
||
|
|
for _ = 2, line do
|
||
|
|
f:read()
|
||
|
|
end
|
||
|
|
return f:read()
|
||
|
|
end
|
||
|
|
return close_handlers_10_(_G.xpcall(_184_, (package.loaded.fennel or debug).traceback))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function sub(str, start, _end)
|
||
|
|
if ((_end < start) or (#str < start)) then
|
||
|
|
return ""
|
||
|
|
elseif utf8_ok_3f then
|
||
|
|
return string.sub(str, utf8.offset(str, start), ((utf8.offset(str, (_end + 1)) or (utf8.len(str) + 1)) - 1))
|
||
|
|
else
|
||
|
|
return string.sub(str, start, math.min(_end, str:len()))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function highlight_line(codeline, col, _3fendcol, opts)
|
||
|
|
if ((opts and (false == opts["error-pinpoint"])) or (os and os.getenv and os.getenv("NO_COLOR"))) then
|
||
|
|
return codeline
|
||
|
|
else
|
||
|
|
local _187_ = (opts or {})
|
||
|
|
local error_pinpoint = _187_["error-pinpoint"]
|
||
|
|
local endcol = (_3fendcol or col)
|
||
|
|
local eol = nil
|
||
|
|
if utf8_ok_3f then
|
||
|
|
eol = utf8.len(codeline)
|
||
|
|
else
|
||
|
|
eol = string.len(codeline)
|
||
|
|
end
|
||
|
|
local _189_ = (error_pinpoint or {"\27[7m", "\27[0m"})
|
||
|
|
local open = _189_[1]
|
||
|
|
local close = _189_[2]
|
||
|
|
return (sub(codeline, 1, col) .. open .. sub(codeline, (col + 1), (endcol + 1)) .. close .. sub(codeline, (endcol + 2), eol))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function friendly_msg(msg, _191_0, source, opts)
|
||
|
|
local _192_ = _191_0
|
||
|
|
local col = _192_["col"]
|
||
|
|
local endcol = _192_["endcol"]
|
||
|
|
local endline = _192_["endline"]
|
||
|
|
local filename = _192_["filename"]
|
||
|
|
local line = _192_["line"]
|
||
|
|
local ok, codeline = pcall(read_line, filename, line, source)
|
||
|
|
local endcol0 = nil
|
||
|
|
if (ok and codeline and (line ~= endline)) then
|
||
|
|
endcol0 = #codeline
|
||
|
|
else
|
||
|
|
endcol0 = endcol
|
||
|
|
end
|
||
|
|
local out = {msg, ""}
|
||
|
|
if (ok and codeline) then
|
||
|
|
if col then
|
||
|
|
table.insert(out, highlight_line(codeline, col, endcol0, opts))
|
||
|
|
else
|
||
|
|
table.insert(out, codeline)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
for _, suggestion in ipairs((suggest(msg) or {})) do
|
||
|
|
table.insert(out, ("* Try %s."):format(suggestion))
|
||
|
|
end
|
||
|
|
return table.concat(out, "\n")
|
||
|
|
end
|
||
|
|
local function assert_compile(condition, msg, ast, source, opts)
|
||
|
|
if not condition then
|
||
|
|
local _196_ = utils["ast-source"](ast)
|
||
|
|
local col = _196_["col"]
|
||
|
|
local filename = _196_["filename"]
|
||
|
|
local line = _196_["line"]
|
||
|
|
error(friendly_msg(("%s:%s:%s Compile error: %s"):format((filename or "unknown"), (line or "?"), (col or "?"), msg), utils["ast-source"](ast), source, opts), 0)
|
||
|
|
end
|
||
|
|
return condition
|
||
|
|
end
|
||
|
|
local function parse_error(msg, filename, line, col, source, opts)
|
||
|
|
return error(friendly_msg(("%s:%s:%s Parse error: %s"):format(filename, line, col, msg), {col = col, filename = filename, line = line}, source, opts), 0)
|
||
|
|
end
|
||
|
|
return {["assert-compile"] = assert_compile, ["parse-error"] = parse_error}
|
||
|
|
end
|
||
|
|
package.preload["fennel.parser"] = package.preload["fennel.parser"] or function(...)
|
||
|
|
local utils = require("fennel.utils")
|
||
|
|
local friend = require("fennel.friend")
|
||
|
|
local unpack = (table.unpack or _G.unpack)
|
||
|
|
local function granulate(getchunk)
|
||
|
|
local c, index, done_3f = "", 1, false
|
||
|
|
local function _198_(parser_state)
|
||
|
|
if not done_3f then
|
||
|
|
if (index <= #c) then
|
||
|
|
local b = c:byte(index)
|
||
|
|
index = (index + 1)
|
||
|
|
return b
|
||
|
|
else
|
||
|
|
local _199_0 = getchunk(parser_state)
|
||
|
|
local function _200_()
|
||
|
|
local char = _199_0
|
||
|
|
return (char ~= "")
|
||
|
|
end
|
||
|
|
if ((nil ~= _199_0) and _200_()) then
|
||
|
|
local char = _199_0
|
||
|
|
c = char
|
||
|
|
index = 2
|
||
|
|
return c:byte()
|
||
|
|
else
|
||
|
|
local _ = _199_0
|
||
|
|
done_3f = true
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function _204_()
|
||
|
|
c = ""
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
return _198_, _204_
|
||
|
|
end
|
||
|
|
local function string_stream(str, _3foptions)
|
||
|
|
local str0 = str:gsub("^#!", ";;")
|
||
|
|
if _3foptions then
|
||
|
|
_3foptions.source = str0
|
||
|
|
end
|
||
|
|
local index = 1
|
||
|
|
local function _206_()
|
||
|
|
local r = str0:byte(index)
|
||
|
|
index = (index + 1)
|
||
|
|
return r
|
||
|
|
end
|
||
|
|
return _206_
|
||
|
|
end
|
||
|
|
local delims = {[123] = 125, [125] = true, [40] = 41, [41] = true, [91] = 93, [93] = true}
|
||
|
|
local function sym_char_3f(b)
|
||
|
|
local b0 = nil
|
||
|
|
if ("number" == type(b)) then
|
||
|
|
b0 = b
|
||
|
|
else
|
||
|
|
b0 = string.byte(b)
|
||
|
|
end
|
||
|
|
return ((32 < b0) and not delims[b0] and (b0 ~= 127) and (b0 ~= 34) and (b0 ~= 39) and (b0 ~= 126) and (b0 ~= 59) and (b0 ~= 44) and (b0 ~= 64) and (b0 ~= 96))
|
||
|
|
end
|
||
|
|
local prefixes = {[35] = "hashfn", [39] = "quote", [44] = "unquote", [96] = "quote"}
|
||
|
|
local function char_starter_3f(b)
|
||
|
|
return (((1 < b) and (b < 127)) or ((192 < b) and (b < 247)))
|
||
|
|
end
|
||
|
|
local function parser_fn(getbyte, filename, _208_0)
|
||
|
|
local _209_ = _208_0
|
||
|
|
local options = _209_
|
||
|
|
local comments = _209_["comments"]
|
||
|
|
local source = _209_["source"]
|
||
|
|
local unfriendly = _209_["unfriendly"]
|
||
|
|
local stack = {}
|
||
|
|
local line, byteindex, col, prev_col, lastb = 1, 0, 0, 0, nil
|
||
|
|
local function ungetb(ub)
|
||
|
|
if char_starter_3f(ub) then
|
||
|
|
col = (col - 1)
|
||
|
|
end
|
||
|
|
if (ub == 10) then
|
||
|
|
line, col = (line - 1), prev_col
|
||
|
|
end
|
||
|
|
byteindex = (byteindex - 1)
|
||
|
|
lastb = ub
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function getb()
|
||
|
|
local r = nil
|
||
|
|
if lastb then
|
||
|
|
r, lastb = lastb, nil
|
||
|
|
else
|
||
|
|
r = getbyte({["stack-size"] = #stack})
|
||
|
|
end
|
||
|
|
byteindex = (byteindex + 1)
|
||
|
|
if (r and char_starter_3f(r)) then
|
||
|
|
col = (col + 1)
|
||
|
|
end
|
||
|
|
if (r == 10) then
|
||
|
|
line, col, prev_col = (line + 1), 0, col
|
||
|
|
end
|
||
|
|
return r
|
||
|
|
end
|
||
|
|
local function whitespace_3f(b)
|
||
|
|
local function _216_()
|
||
|
|
local _215_0 = options.whitespace
|
||
|
|
if (nil ~= _215_0) then
|
||
|
|
_215_0 = _215_0[b]
|
||
|
|
end
|
||
|
|
return _215_0
|
||
|
|
end
|
||
|
|
return ((b == 32) or ((9 <= b) and (b <= 13)) or _216_())
|
||
|
|
end
|
||
|
|
local function parse_error(msg, _3fcol_adjust)
|
||
|
|
local col0 = (col + (_3fcol_adjust or -1))
|
||
|
|
if (nil == utils["hook-opts"]("parse-error", options, msg, filename, (line or "?"), col0, source, utils.root.reset)) then
|
||
|
|
utils.root.reset()
|
||
|
|
if unfriendly then
|
||
|
|
return error(string.format("%s:%s:%s Parse error: %s", filename, (line or "?"), col0, msg), 0)
|
||
|
|
else
|
||
|
|
return friend["parse-error"](msg, filename, (line or "?"), col0, source, options)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_stream()
|
||
|
|
local whitespace_since_dispatch, done_3f, retval = true
|
||
|
|
local function set_source_fields(source0)
|
||
|
|
source0.byteend, source0.endcol, source0.endline = byteindex, (col - 1), line
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function dispatch(v)
|
||
|
|
local _220_0 = stack[#stack]
|
||
|
|
if (_220_0 == nil) then
|
||
|
|
retval, done_3f, whitespace_since_dispatch = v, true, false
|
||
|
|
return nil
|
||
|
|
elseif ((_G.type(_220_0) == "table") and (nil ~= _220_0.prefix)) then
|
||
|
|
local prefix = _220_0.prefix
|
||
|
|
local source0 = nil
|
||
|
|
do
|
||
|
|
local _221_0 = table.remove(stack)
|
||
|
|
set_source_fields(_221_0)
|
||
|
|
source0 = _221_0
|
||
|
|
end
|
||
|
|
local list = utils.list(utils.sym(prefix, source0), v)
|
||
|
|
for k, v0 in pairs(source0) do
|
||
|
|
list[k] = v0
|
||
|
|
end
|
||
|
|
return dispatch(list)
|
||
|
|
elseif (nil ~= _220_0) then
|
||
|
|
local top = _220_0
|
||
|
|
whitespace_since_dispatch = false
|
||
|
|
return table.insert(top, v)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function badend()
|
||
|
|
local accum = utils.map(stack, "closer")
|
||
|
|
local _223_
|
||
|
|
if (#stack == 1) then
|
||
|
|
_223_ = ""
|
||
|
|
else
|
||
|
|
_223_ = "s"
|
||
|
|
end
|
||
|
|
return parse_error(string.format("expected closing delimiter%s %s", _223_, string.char(unpack(accum))))
|
||
|
|
end
|
||
|
|
local function skip_whitespace(b)
|
||
|
|
if (b and whitespace_3f(b)) then
|
||
|
|
whitespace_since_dispatch = true
|
||
|
|
return skip_whitespace(getb())
|
||
|
|
elseif (not b and (0 < #stack)) then
|
||
|
|
return badend()
|
||
|
|
else
|
||
|
|
return b
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_comment(b, contents)
|
||
|
|
if (b and (10 ~= b)) then
|
||
|
|
local function _226_()
|
||
|
|
table.insert(contents, string.char(b))
|
||
|
|
return contents
|
||
|
|
end
|
||
|
|
return parse_comment(getb(), _226_())
|
||
|
|
elseif comments then
|
||
|
|
ungetb(10)
|
||
|
|
return dispatch(utils.comment(table.concat(contents), {filename = filename, line = line}))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function open_table(b)
|
||
|
|
if not whitespace_since_dispatch then
|
||
|
|
parse_error(("expected whitespace before opening delimiter " .. string.char(b)))
|
||
|
|
end
|
||
|
|
return table.insert(stack, {bytestart = byteindex, closer = delims[b], col = (col - 1), filename = filename, line = line})
|
||
|
|
end
|
||
|
|
local function close_list(list)
|
||
|
|
return dispatch(setmetatable(list, getmetatable(utils.list())))
|
||
|
|
end
|
||
|
|
local function close_sequence(tbl)
|
||
|
|
local mt = getmetatable(utils.sequence())
|
||
|
|
for k, v in pairs(tbl) do
|
||
|
|
if ("number" ~= type(k)) then
|
||
|
|
mt[k] = v
|
||
|
|
tbl[k] = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return dispatch(setmetatable(tbl, mt))
|
||
|
|
end
|
||
|
|
local function add_comment_at(comments0, index, node)
|
||
|
|
local _230_0 = comments0[index]
|
||
|
|
if (nil ~= _230_0) then
|
||
|
|
local existing = _230_0
|
||
|
|
return table.insert(existing, node)
|
||
|
|
else
|
||
|
|
local _ = _230_0
|
||
|
|
comments0[index] = {node}
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function next_noncomment(tbl, i)
|
||
|
|
if utils["comment?"](tbl[i]) then
|
||
|
|
return next_noncomment(tbl, (i + 1))
|
||
|
|
elseif utils["sym?"](tbl[i], ":") then
|
||
|
|
return tostring(tbl[(i + 1)])
|
||
|
|
else
|
||
|
|
return tbl[i]
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function extract_comments(tbl)
|
||
|
|
local comments0 = {keys = {}, last = {}, values = {}}
|
||
|
|
while utils["comment?"](tbl[#tbl]) do
|
||
|
|
table.insert(comments0.last, 1, table.remove(tbl))
|
||
|
|
end
|
||
|
|
local last_key_3f = false
|
||
|
|
for i, node in ipairs(tbl) do
|
||
|
|
if not utils["comment?"](node) then
|
||
|
|
last_key_3f = not last_key_3f
|
||
|
|
elseif last_key_3f then
|
||
|
|
add_comment_at(comments0.values, next_noncomment(tbl, i), node)
|
||
|
|
else
|
||
|
|
add_comment_at(comments0.keys, next_noncomment(tbl, i), node)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
for i = #tbl, 1, -1 do
|
||
|
|
if utils["comment?"](tbl[i]) then
|
||
|
|
table.remove(tbl, i)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return comments0
|
||
|
|
end
|
||
|
|
local function close_curly_table(tbl)
|
||
|
|
local comments0 = extract_comments(tbl)
|
||
|
|
local keys = {}
|
||
|
|
local val = {}
|
||
|
|
if ((#tbl % 2) ~= 0) then
|
||
|
|
byteindex = (byteindex - 1)
|
||
|
|
parse_error("expected even number of values in table literal")
|
||
|
|
end
|
||
|
|
setmetatable(val, tbl)
|
||
|
|
for i = 1, #tbl, 2 do
|
||
|
|
if ((tostring(tbl[i]) == ":") and utils["sym?"](tbl[(i + 1)]) and utils["sym?"](tbl[i])) then
|
||
|
|
tbl[i] = tostring(tbl[(i + 1)])
|
||
|
|
end
|
||
|
|
val[tbl[i]] = tbl[(i + 1)]
|
||
|
|
table.insert(keys, tbl[i])
|
||
|
|
end
|
||
|
|
tbl.comments = comments0
|
||
|
|
tbl.keys = keys
|
||
|
|
return dispatch(val)
|
||
|
|
end
|
||
|
|
local function close_table(b)
|
||
|
|
local top = table.remove(stack)
|
||
|
|
if (top == nil) then
|
||
|
|
parse_error(("unexpected closing delimiter " .. string.char(b)))
|
||
|
|
end
|
||
|
|
if (top.closer and (top.closer ~= b)) then
|
||
|
|
parse_error(("mismatched closing delimiter " .. string.char(b) .. ", expected " .. string.char(top.closer)))
|
||
|
|
end
|
||
|
|
set_source_fields(top)
|
||
|
|
if (b == 41) then
|
||
|
|
return close_list(top)
|
||
|
|
elseif (b == 93) then
|
||
|
|
return close_sequence(top)
|
||
|
|
else
|
||
|
|
return close_curly_table(top)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_string_loop(chars, b, state)
|
||
|
|
if b then
|
||
|
|
table.insert(chars, string.char(b))
|
||
|
|
end
|
||
|
|
local state0 = nil
|
||
|
|
do
|
||
|
|
local _241_0 = {state, b}
|
||
|
|
if ((_G.type(_241_0) == "table") and (_241_0[1] == "base") and (_241_0[2] == 92)) then
|
||
|
|
state0 = "backslash"
|
||
|
|
elseif ((_G.type(_241_0) == "table") and (_241_0[1] == "base") and (_241_0[2] == 34)) then
|
||
|
|
state0 = "done"
|
||
|
|
elseif ((_G.type(_241_0) == "table") and (_241_0[1] == "backslash") and (_241_0[2] == 10)) then
|
||
|
|
table.remove(chars, (#chars - 1))
|
||
|
|
state0 = "base"
|
||
|
|
else
|
||
|
|
local _ = _241_0
|
||
|
|
state0 = "base"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if (b and (state0 ~= "done")) then
|
||
|
|
return parse_string_loop(chars, getb(), state0)
|
||
|
|
else
|
||
|
|
return b
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function escape_char(c)
|
||
|
|
return ({[10] = "\\n", [11] = "\\v", [12] = "\\f", [13] = "\\r", [7] = "\\a", [8] = "\\b", [9] = "\\t"})[c:byte()]
|
||
|
|
end
|
||
|
|
local function parse_string()
|
||
|
|
table.insert(stack, {closer = 34})
|
||
|
|
local chars = {"\""}
|
||
|
|
if not parse_string_loop(chars, getb(), "base") then
|
||
|
|
badend()
|
||
|
|
end
|
||
|
|
table.remove(stack)
|
||
|
|
local raw = table.concat(chars)
|
||
|
|
local formatted = raw:gsub("[\7-\13]", escape_char)
|
||
|
|
local _245_0 = (rawget(_G, "loadstring") or load)(("return " .. formatted))
|
||
|
|
if (nil ~= _245_0) then
|
||
|
|
local load_fn = _245_0
|
||
|
|
return dispatch(load_fn())
|
||
|
|
elseif (_245_0 == nil) then
|
||
|
|
return parse_error(("Invalid string: " .. raw))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_prefix(b)
|
||
|
|
table.insert(stack, {bytestart = byteindex, col = (col - 1), filename = filename, line = line, prefix = prefixes[b]})
|
||
|
|
local nextb = getb()
|
||
|
|
if (whitespace_3f(nextb) or (true == delims[nextb])) then
|
||
|
|
if (b ~= 35) then
|
||
|
|
parse_error("invalid whitespace after quoting prefix")
|
||
|
|
end
|
||
|
|
table.remove(stack)
|
||
|
|
dispatch(utils.sym("#"))
|
||
|
|
end
|
||
|
|
return ungetb(nextb)
|
||
|
|
end
|
||
|
|
local function parse_sym_loop(chars, b)
|
||
|
|
if (b and sym_char_3f(b)) then
|
||
|
|
table.insert(chars, string.char(b))
|
||
|
|
return parse_sym_loop(chars, getb())
|
||
|
|
else
|
||
|
|
if b then
|
||
|
|
ungetb(b)
|
||
|
|
end
|
||
|
|
return chars
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_number(rawstr)
|
||
|
|
local number_with_stripped_underscores = (not rawstr:find("^_") and rawstr:gsub("_", ""))
|
||
|
|
if rawstr:match("^%d") then
|
||
|
|
dispatch((tonumber(number_with_stripped_underscores) or parse_error(("could not read number \"" .. rawstr .. "\""))))
|
||
|
|
return true
|
||
|
|
else
|
||
|
|
local _251_0 = tonumber(number_with_stripped_underscores)
|
||
|
|
if (nil ~= _251_0) then
|
||
|
|
local x = _251_0
|
||
|
|
dispatch(x)
|
||
|
|
return true
|
||
|
|
else
|
||
|
|
local _ = _251_0
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function check_malformed_sym(rawstr)
|
||
|
|
local function col_adjust(pat)
|
||
|
|
return (rawstr:find(pat) - utils.len(rawstr) - 1)
|
||
|
|
end
|
||
|
|
if (rawstr:match("^~") and (rawstr ~= "~=")) then
|
||
|
|
return parse_error("invalid character: ~")
|
||
|
|
elseif rawstr:match("%.[0-9]") then
|
||
|
|
return parse_error(("can't start multisym segment with a digit: " .. rawstr), col_adjust("%.[0-9]"))
|
||
|
|
elseif (rawstr:match("[%.:][%.:]") and (rawstr ~= "..") and (rawstr ~= "$...")) then
|
||
|
|
return parse_error(("malformed multisym: " .. rawstr), col_adjust("[%.:][%.:]"))
|
||
|
|
elseif ((rawstr ~= ":") and rawstr:match(":$")) then
|
||
|
|
return parse_error(("malformed multisym: " .. rawstr), col_adjust(":$"))
|
||
|
|
elseif rawstr:match(":.+[%.:]") then
|
||
|
|
return parse_error(("method must be last component of multisym: " .. rawstr), col_adjust(":.+[%.:]"))
|
||
|
|
else
|
||
|
|
return rawstr
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_sym(b)
|
||
|
|
local source0 = {bytestart = byteindex, col = (col - 1), filename = filename, line = line}
|
||
|
|
local rawstr = table.concat(parse_sym_loop({string.char(b)}, getb()))
|
||
|
|
set_source_fields(source0)
|
||
|
|
if (rawstr == "true") then
|
||
|
|
return dispatch(true)
|
||
|
|
elseif (rawstr == "false") then
|
||
|
|
return dispatch(false)
|
||
|
|
elseif (rawstr == "...") then
|
||
|
|
return dispatch(utils.varg(source0))
|
||
|
|
elseif rawstr:match("^:.+$") then
|
||
|
|
return dispatch(rawstr:sub(2))
|
||
|
|
elseif not parse_number(rawstr) then
|
||
|
|
return dispatch(utils.sym(check_malformed_sym(rawstr), source0))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function parse_loop(b)
|
||
|
|
if not b then
|
||
|
|
elseif (b == 59) then
|
||
|
|
parse_comment(getb(), {";"})
|
||
|
|
elseif (type(delims[b]) == "number") then
|
||
|
|
open_table(b)
|
||
|
|
elseif delims[b] then
|
||
|
|
close_table(b)
|
||
|
|
elseif (b == 34) then
|
||
|
|
parse_string(b)
|
||
|
|
elseif prefixes[b] then
|
||
|
|
parse_prefix(b)
|
||
|
|
elseif (sym_char_3f(b) or (b == string.byte("~"))) then
|
||
|
|
parse_sym(b)
|
||
|
|
elseif not utils["hook-opts"]("illegal-char", options, b, getb, ungetb, dispatch) then
|
||
|
|
parse_error(("invalid character: " .. string.char(b)))
|
||
|
|
end
|
||
|
|
if not b then
|
||
|
|
return nil
|
||
|
|
elseif done_3f then
|
||
|
|
return true, retval
|
||
|
|
else
|
||
|
|
return parse_loop(skip_whitespace(getb()))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return parse_loop(skip_whitespace(getb()))
|
||
|
|
end
|
||
|
|
local function _258_()
|
||
|
|
stack, line, byteindex, col, lastb = {}, 1, 0, 0, nil
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
return parse_stream, _258_
|
||
|
|
end
|
||
|
|
local function parser(stream_or_string, _3ffilename, _3foptions)
|
||
|
|
local filename = (_3ffilename or "unknown")
|
||
|
|
local options = (_3foptions or utils.root.options or {})
|
||
|
|
assert(("string" == type(filename)), "expected filename as second argument to parser")
|
||
|
|
if ("string" == type(stream_or_string)) then
|
||
|
|
return parser_fn(string_stream(stream_or_string, options), filename, options)
|
||
|
|
else
|
||
|
|
return parser_fn(stream_or_string, filename, options)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return {["string-stream"] = string_stream, ["sym-char?"] = sym_char_3f, granulate = granulate, parser = parser}
|
||
|
|
end
|
||
|
|
local utils = nil
|
||
|
|
package.preload["fennel.view"] = package.preload["fennel.view"] or function(...)
|
||
|
|
local type_order = {["function"] = 5, boolean = 2, number = 1, string = 3, table = 4, thread = 7, userdata = 6}
|
||
|
|
local default_opts = {["detect-cycles?"] = true, ["empty-as-sequence?"] = false, ["escape-newlines?"] = false, ["line-length"] = 80, ["max-sparse-gap"] = 10, ["metamethod?"] = true, ["one-line?"] = false, ["prefer-colon?"] = false, ["utf8?"] = true, depth = 128}
|
||
|
|
local lua_pairs = pairs
|
||
|
|
local lua_ipairs = ipairs
|
||
|
|
local function pairs(t)
|
||
|
|
local _1_0 = getmetatable(t)
|
||
|
|
if ((_G.type(_1_0) == "table") and (nil ~= _1_0.__pairs)) then
|
||
|
|
local p = _1_0.__pairs
|
||
|
|
return p(t)
|
||
|
|
else
|
||
|
|
local _ = _1_0
|
||
|
|
return lua_pairs(t)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function ipairs(t)
|
||
|
|
local _3_0 = getmetatable(t)
|
||
|
|
if ((_G.type(_3_0) == "table") and (nil ~= _3_0.__ipairs)) then
|
||
|
|
local i = _3_0.__ipairs
|
||
|
|
return i(t)
|
||
|
|
else
|
||
|
|
local _ = _3_0
|
||
|
|
return lua_ipairs(t)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function length_2a(t)
|
||
|
|
local _5_0 = getmetatable(t)
|
||
|
|
if ((_G.type(_5_0) == "table") and (nil ~= _5_0.__len)) then
|
||
|
|
local l = _5_0.__len
|
||
|
|
return l(t)
|
||
|
|
else
|
||
|
|
local _ = _5_0
|
||
|
|
return #t
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function get_default(key)
|
||
|
|
local _7_0 = default_opts[key]
|
||
|
|
if (_7_0 == nil) then
|
||
|
|
return error(("option '%s' doesn't have a default value, use the :after key to set it"):format(tostring(key)))
|
||
|
|
elseif (nil ~= _7_0) then
|
||
|
|
local v = _7_0
|
||
|
|
return v
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function getopt(options, key)
|
||
|
|
local _9_0 = options[key]
|
||
|
|
if ((_G.type(_9_0) == "table") and (nil ~= _9_0.once)) then
|
||
|
|
local val_2a = _9_0.once
|
||
|
|
return val_2a
|
||
|
|
else
|
||
|
|
local _3fval = _9_0
|
||
|
|
return _3fval
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function normalize_opts(options)
|
||
|
|
local tbl_14_ = {}
|
||
|
|
for k, v in pairs(options) do
|
||
|
|
local k_15_, v_16_ = nil, nil
|
||
|
|
local function _12_()
|
||
|
|
local _11_0 = v
|
||
|
|
if ((_G.type(_11_0) == "table") and (nil ~= _11_0.after)) then
|
||
|
|
local val = _11_0.after
|
||
|
|
return val
|
||
|
|
else
|
||
|
|
local function _13_()
|
||
|
|
return v.once
|
||
|
|
end
|
||
|
|
if ((_G.type(_11_0) == "table") and _13_()) then
|
||
|
|
return get_default(k)
|
||
|
|
else
|
||
|
|
local _ = _11_0
|
||
|
|
return v
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
k_15_, v_16_ = k, _12_()
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return tbl_14_
|
||
|
|
end
|
||
|
|
local function sort_keys(_16_0, _18_0)
|
||
|
|
local _17_ = _16_0
|
||
|
|
local a = _17_[1]
|
||
|
|
local _19_ = _18_0
|
||
|
|
local b = _19_[1]
|
||
|
|
local ta = type(a)
|
||
|
|
local tb = type(b)
|
||
|
|
if ((ta == tb) and ((ta == "string") or (ta == "number"))) then
|
||
|
|
return (a < b)
|
||
|
|
else
|
||
|
|
local dta = type_order[ta]
|
||
|
|
local dtb = type_order[tb]
|
||
|
|
if (dta and dtb) then
|
||
|
|
return (dta < dtb)
|
||
|
|
elseif dta then
|
||
|
|
return true
|
||
|
|
elseif dtb then
|
||
|
|
return false
|
||
|
|
else
|
||
|
|
return (ta < tb)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function max_index_gap(kv)
|
||
|
|
local gap = 0
|
||
|
|
if (0 < length_2a(kv)) then
|
||
|
|
local i = 0
|
||
|
|
for _, _22_0 in ipairs(kv) do
|
||
|
|
local _23_ = _22_0
|
||
|
|
local k = _23_[1]
|
||
|
|
if (gap < (k - i)) then
|
||
|
|
gap = (k - i)
|
||
|
|
end
|
||
|
|
i = k
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return gap
|
||
|
|
end
|
||
|
|
local function fill_gaps(kv)
|
||
|
|
local missing_indexes = {}
|
||
|
|
local i = 0
|
||
|
|
for _, _26_0 in ipairs(kv) do
|
||
|
|
local _27_ = _26_0
|
||
|
|
local j = _27_[1]
|
||
|
|
i = (i + 1)
|
||
|
|
while (i < j) do
|
||
|
|
table.insert(missing_indexes, i)
|
||
|
|
i = (i + 1)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
for _, k in ipairs(missing_indexes) do
|
||
|
|
table.insert(kv, k, {k})
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
local function table_kv_pairs(t, options)
|
||
|
|
local assoc_3f = false
|
||
|
|
local kv = {}
|
||
|
|
local insert = table.insert
|
||
|
|
for k, v in pairs(t) do
|
||
|
|
if ((type(k) ~= "number") or (k < 1)) then
|
||
|
|
assoc_3f = true
|
||
|
|
end
|
||
|
|
insert(kv, {k, v})
|
||
|
|
end
|
||
|
|
table.sort(kv, sort_keys)
|
||
|
|
if not assoc_3f then
|
||
|
|
if (options["max-sparse-gap"] < max_index_gap(kv)) then
|
||
|
|
assoc_3f = true
|
||
|
|
else
|
||
|
|
fill_gaps(kv)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if (length_2a(kv) == 0) then
|
||
|
|
return kv, "empty"
|
||
|
|
else
|
||
|
|
local function _31_()
|
||
|
|
if assoc_3f then
|
||
|
|
return "table"
|
||
|
|
else
|
||
|
|
return "seq"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return kv, _31_()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function count_table_appearances(t, appearances)
|
||
|
|
if (type(t) == "table") then
|
||
|
|
if not appearances[t] then
|
||
|
|
appearances[t] = 1
|
||
|
|
for k, v in pairs(t) do
|
||
|
|
count_table_appearances(k, appearances)
|
||
|
|
count_table_appearances(v, appearances)
|
||
|
|
end
|
||
|
|
else
|
||
|
|
appearances[t] = ((appearances[t] or 0) + 1)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return appearances
|
||
|
|
end
|
||
|
|
local function save_table(t, seen)
|
||
|
|
local seen0 = (seen or {len = 0})
|
||
|
|
local id = (seen0.len + 1)
|
||
|
|
if not seen0[t] then
|
||
|
|
seen0[t] = id
|
||
|
|
seen0.len = id
|
||
|
|
end
|
||
|
|
return seen0
|
||
|
|
end
|
||
|
|
local function detect_cycle(t, seen)
|
||
|
|
if ("table" == type(t)) then
|
||
|
|
seen[t] = true
|
||
|
|
local res = nil
|
||
|
|
for k, v in pairs(t) do
|
||
|
|
if res then break end
|
||
|
|
res = (seen[k] or detect_cycle(k, seen) or seen[v] or detect_cycle(v, seen))
|
||
|
|
end
|
||
|
|
return res
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function visible_cycle_3f(t, options)
|
||
|
|
return (getopt(options, "detect-cycles?") and detect_cycle(t, {}) and save_table(t, options.seen) and (1 < (options.appearances[t] or 0)))
|
||
|
|
end
|
||
|
|
local function table_indent(indent, id)
|
||
|
|
local opener_length = nil
|
||
|
|
if id then
|
||
|
|
opener_length = (length_2a(tostring(id)) + 2)
|
||
|
|
else
|
||
|
|
opener_length = 1
|
||
|
|
end
|
||
|
|
return (indent + opener_length)
|
||
|
|
end
|
||
|
|
local pp = nil
|
||
|
|
local function concat_table_lines(elements, options, multiline_3f, indent, table_type, prefix, last_comment_3f)
|
||
|
|
local indent_str = ("\n" .. string.rep(" ", indent))
|
||
|
|
local open = nil
|
||
|
|
local function _38_()
|
||
|
|
if ("seq" == table_type) then
|
||
|
|
return "["
|
||
|
|
else
|
||
|
|
return "{"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
open = ((prefix or "") .. _38_())
|
||
|
|
local close = nil
|
||
|
|
if ("seq" == table_type) then
|
||
|
|
close = "]"
|
||
|
|
else
|
||
|
|
close = "}"
|
||
|
|
end
|
||
|
|
local oneline = (open .. table.concat(elements, " ") .. close)
|
||
|
|
if (not getopt(options, "one-line?") and (multiline_3f or (options["line-length"] < (indent + length_2a(oneline))) or last_comment_3f)) then
|
||
|
|
local function _40_()
|
||
|
|
if last_comment_3f then
|
||
|
|
return indent_str
|
||
|
|
else
|
||
|
|
return ""
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return (open .. table.concat(elements, indent_str) .. _40_() .. close)
|
||
|
|
else
|
||
|
|
return oneline
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function utf8_len(x)
|
||
|
|
local n = 0
|
||
|
|
for _ in string.gmatch(x, "[%z\1-\127\192-\247]") do
|
||
|
|
n = (n + 1)
|
||
|
|
end
|
||
|
|
return n
|
||
|
|
end
|
||
|
|
local function comment_3f(x)
|
||
|
|
if ("table" == type(x)) then
|
||
|
|
local fst = x[1]
|
||
|
|
return (("string" == type(fst)) and (nil ~= fst:find("^;")))
|
||
|
|
else
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function pp_associative(t, kv, options, indent)
|
||
|
|
local multiline_3f = false
|
||
|
|
local id = options.seen[t]
|
||
|
|
if (options.depth <= options.level) then
|
||
|
|
return "{...}"
|
||
|
|
elseif (id and getopt(options, "detect-cycles?")) then
|
||
|
|
return ("@" .. id .. "{...}")
|
||
|
|
else
|
||
|
|
local visible_cycle_3f0 = visible_cycle_3f(t, options)
|
||
|
|
local id0 = (visible_cycle_3f0 and options.seen[t])
|
||
|
|
local indent0 = table_indent(indent, id0)
|
||
|
|
local slength = nil
|
||
|
|
if getopt(options, "utf8?") then
|
||
|
|
slength = utf8_len
|
||
|
|
else
|
||
|
|
local function _43_(_241)
|
||
|
|
return #_241
|
||
|
|
end
|
||
|
|
slength = _43_
|
||
|
|
end
|
||
|
|
local prefix = nil
|
||
|
|
if visible_cycle_3f0 then
|
||
|
|
prefix = ("@" .. id0)
|
||
|
|
else
|
||
|
|
prefix = ""
|
||
|
|
end
|
||
|
|
local items = nil
|
||
|
|
do
|
||
|
|
local options0 = normalize_opts(options)
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, _46_0 in ipairs(kv) do
|
||
|
|
local _47_ = _46_0
|
||
|
|
local k = _47_[1]
|
||
|
|
local v = _47_[2]
|
||
|
|
local val_19_ = nil
|
||
|
|
do
|
||
|
|
local k0 = pp(k, options0, (indent0 + 1), true)
|
||
|
|
local v0 = pp(v, options0, (indent0 + slength(k0) + 1))
|
||
|
|
multiline_3f = (multiline_3f or k0:find("\n") or v0:find("\n"))
|
||
|
|
val_19_ = (k0 .. " " .. v0)
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
items = tbl_17_
|
||
|
|
end
|
||
|
|
return concat_table_lines(items, options, multiline_3f, indent0, "table", prefix, false)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function pp_sequence(t, kv, options, indent)
|
||
|
|
local multiline_3f = false
|
||
|
|
local id = options.seen[t]
|
||
|
|
if (options.depth <= options.level) then
|
||
|
|
return "[...]"
|
||
|
|
elseif (id and getopt(options, "detect-cycles?")) then
|
||
|
|
return ("@" .. id .. "[...]")
|
||
|
|
else
|
||
|
|
local visible_cycle_3f0 = visible_cycle_3f(t, options)
|
||
|
|
local id0 = (visible_cycle_3f0 and options.seen[t])
|
||
|
|
local indent0 = table_indent(indent, id0)
|
||
|
|
local prefix = nil
|
||
|
|
if visible_cycle_3f0 then
|
||
|
|
prefix = ("@" .. id0)
|
||
|
|
else
|
||
|
|
prefix = ""
|
||
|
|
end
|
||
|
|
local last_comment_3f = comment_3f(t[#t])
|
||
|
|
local items = nil
|
||
|
|
do
|
||
|
|
local options0 = normalize_opts(options)
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, _51_0 in ipairs(kv) do
|
||
|
|
local _52_ = _51_0
|
||
|
|
local _0 = _52_[1]
|
||
|
|
local v = _52_[2]
|
||
|
|
local val_19_ = nil
|
||
|
|
do
|
||
|
|
local v0 = pp(v, options0, indent0)
|
||
|
|
multiline_3f = (multiline_3f or v0:find("\n") or v0:find("^;"))
|
||
|
|
val_19_ = v0
|
||
|
|
end
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
items = tbl_17_
|
||
|
|
end
|
||
|
|
return concat_table_lines(items, options, multiline_3f, indent0, "seq", prefix, last_comment_3f)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function concat_lines(lines, options, indent, force_multi_line_3f)
|
||
|
|
if (length_2a(lines) == 0) then
|
||
|
|
if getopt(options, "empty-as-sequence?") then
|
||
|
|
return "[]"
|
||
|
|
else
|
||
|
|
return "{}"
|
||
|
|
end
|
||
|
|
else
|
||
|
|
local oneline = nil
|
||
|
|
local _56_
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for _, line in ipairs(lines) do
|
||
|
|
local val_19_ = line:gsub("^%s+", "")
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_56_ = tbl_17_
|
||
|
|
end
|
||
|
|
oneline = table.concat(_56_, " ")
|
||
|
|
if (not getopt(options, "one-line?") and (force_multi_line_3f or oneline:find("\n") or (options["line-length"] < (indent + length_2a(oneline))))) then
|
||
|
|
return table.concat(lines, ("\n" .. string.rep(" ", indent)))
|
||
|
|
else
|
||
|
|
return oneline
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function pp_metamethod(t, metamethod, options, indent)
|
||
|
|
if (options.depth <= options.level) then
|
||
|
|
if getopt(options, "empty-as-sequence?") then
|
||
|
|
return "[...]"
|
||
|
|
else
|
||
|
|
return "{...}"
|
||
|
|
end
|
||
|
|
else
|
||
|
|
local _ = nil
|
||
|
|
local function _61_(_241)
|
||
|
|
return visible_cycle_3f(_241, options)
|
||
|
|
end
|
||
|
|
options["visible-cycle?"] = _61_
|
||
|
|
_ = nil
|
||
|
|
local lines, force_multi_line_3f = nil, nil
|
||
|
|
do
|
||
|
|
local options0 = normalize_opts(options)
|
||
|
|
lines, force_multi_line_3f = metamethod(t, pp, options0, indent)
|
||
|
|
end
|
||
|
|
options["visible-cycle?"] = nil
|
||
|
|
local _62_0 = type(lines)
|
||
|
|
if (_62_0 == "string") then
|
||
|
|
return lines
|
||
|
|
elseif (_62_0 == "table") then
|
||
|
|
return concat_lines(lines, options, indent, force_multi_line_3f)
|
||
|
|
else
|
||
|
|
local _0 = _62_0
|
||
|
|
return error("__fennelview metamethod must return a table of lines")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function pp_table(x, options, indent)
|
||
|
|
options.level = (options.level + 1)
|
||
|
|
local x0 = nil
|
||
|
|
do
|
||
|
|
local _65_0 = nil
|
||
|
|
if getopt(options, "metamethod?") then
|
||
|
|
local _66_0 = x
|
||
|
|
if (nil ~= _66_0) then
|
||
|
|
local _67_0 = getmetatable(_66_0)
|
||
|
|
if (nil ~= _67_0) then
|
||
|
|
_65_0 = _67_0.__fennelview
|
||
|
|
else
|
||
|
|
_65_0 = _67_0
|
||
|
|
end
|
||
|
|
else
|
||
|
|
_65_0 = _66_0
|
||
|
|
end
|
||
|
|
else
|
||
|
|
_65_0 = nil
|
||
|
|
end
|
||
|
|
if (nil ~= _65_0) then
|
||
|
|
local metamethod = _65_0
|
||
|
|
x0 = pp_metamethod(x, metamethod, options, indent)
|
||
|
|
else
|
||
|
|
local _ = _65_0
|
||
|
|
local _71_0, _72_0 = table_kv_pairs(x, options)
|
||
|
|
if (true and (_72_0 == "empty")) then
|
||
|
|
local _0 = _71_0
|
||
|
|
if getopt(options, "empty-as-sequence?") then
|
||
|
|
x0 = "[]"
|
||
|
|
else
|
||
|
|
x0 = "{}"
|
||
|
|
end
|
||
|
|
elseif ((nil ~= _71_0) and (_72_0 == "table")) then
|
||
|
|
local kv = _71_0
|
||
|
|
x0 = pp_associative(x, kv, options, indent)
|
||
|
|
elseif ((nil ~= _71_0) and (_72_0 == "seq")) then
|
||
|
|
local kv = _71_0
|
||
|
|
x0 = pp_sequence(x, kv, options, indent)
|
||
|
|
else
|
||
|
|
x0 = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
options.level = (options.level - 1)
|
||
|
|
return x0
|
||
|
|
end
|
||
|
|
local function number__3estring(n)
|
||
|
|
local _76_0 = string.gsub(tostring(n), ",", ".")
|
||
|
|
return _76_0
|
||
|
|
end
|
||
|
|
local function colon_string_3f(s)
|
||
|
|
return s:find("^[-%w?^_!$%&*+./|<=>]+$")
|
||
|
|
end
|
||
|
|
local utf8_inits = {{["max-byte"] = 127, ["max-code"] = 127, ["min-byte"] = 0, ["min-code"] = 0, len = 1}, {["max-byte"] = 223, ["max-code"] = 2047, ["min-byte"] = 192, ["min-code"] = 128, len = 2}, {["max-byte"] = 239, ["max-code"] = 65535, ["min-byte"] = 224, ["min-code"] = 2048, len = 3}, {["max-byte"] = 247, ["max-code"] = 1114111, ["min-byte"] = 240, ["min-code"] = 65536, len = 4}}
|
||
|
|
local function default_byte_escape(byte, _options)
|
||
|
|
return ("\\%03d"):format(byte)
|
||
|
|
end
|
||
|
|
local function utf8_escape(str, options)
|
||
|
|
local function validate_utf8(str0, index)
|
||
|
|
local inits = utf8_inits
|
||
|
|
local byte = string.byte(str0, index)
|
||
|
|
local init = nil
|
||
|
|
do
|
||
|
|
local ret = nil
|
||
|
|
for _, init0 in ipairs(inits) do
|
||
|
|
if ret then break end
|
||
|
|
ret = (byte and (function(_77_,_78_,_79_) return (_77_ <= _78_) and (_78_ <= _79_) end)(init0["min-byte"],byte,init0["max-byte"]) and init0)
|
||
|
|
end
|
||
|
|
init = ret
|
||
|
|
end
|
||
|
|
local code = nil
|
||
|
|
local function _80_()
|
||
|
|
local code0 = nil
|
||
|
|
if init then
|
||
|
|
code0 = (byte - init["min-byte"])
|
||
|
|
else
|
||
|
|
code0 = nil
|
||
|
|
end
|
||
|
|
for i = (index + 1), (index + init.len + -1) do
|
||
|
|
local byte0 = string.byte(str0, i)
|
||
|
|
code0 = (byte0 and code0 and ((128 <= byte0) and (byte0 <= 191)) and ((code0 * 64) + (byte0 - 128)))
|
||
|
|
end
|
||
|
|
return code0
|
||
|
|
end
|
||
|
|
code = (init and _80_())
|
||
|
|
if (code and (function(_82_,_83_,_84_) return (_82_ <= _83_) and (_83_ <= _84_) end)(init["min-code"],code,init["max-code"]) and not ((55296 <= code) and (code <= 57343))) then
|
||
|
|
return init.len
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local index = 1
|
||
|
|
local output = {}
|
||
|
|
local byte_escape = (getopt(options, "byte-escape") or default_byte_escape)
|
||
|
|
while (index <= #str) do
|
||
|
|
local nexti = (string.find(str, "[\128-\255]", index) or (#str + 1))
|
||
|
|
local len = validate_utf8(str, nexti)
|
||
|
|
table.insert(output, string.sub(str, index, (nexti + (len or 0) + -1)))
|
||
|
|
if (not len and (nexti <= #str)) then
|
||
|
|
table.insert(output, byte_escape(str:byte(nexti), options))
|
||
|
|
end
|
||
|
|
if len then
|
||
|
|
index = (nexti + len)
|
||
|
|
else
|
||
|
|
index = (nexti + 1)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return table.concat(output)
|
||
|
|
end
|
||
|
|
local function pp_string(str, options, indent)
|
||
|
|
local len = length_2a(str)
|
||
|
|
local esc_newline_3f = ((len < 2) or (getopt(options, "escape-newlines?") and (len < (options["line-length"] - indent))))
|
||
|
|
local byte_escape = (getopt(options, "byte-escape") or default_byte_escape)
|
||
|
|
local escs = nil
|
||
|
|
local _88_
|
||
|
|
if esc_newline_3f then
|
||
|
|
_88_ = "\\n"
|
||
|
|
else
|
||
|
|
_88_ = "\n"
|
||
|
|
end
|
||
|
|
local function _90_(_241, _242)
|
||
|
|
return byte_escape(_242:byte(), options)
|
||
|
|
end
|
||
|
|
escs = setmetatable({["\""] = "\\\"", ["\11"] = "\\v", ["\12"] = "\\f", ["\13"] = "\\r", ["\7"] = "\\a", ["\8"] = "\\b", ["\9"] = "\\t", ["\\"] = "\\\\", ["\n"] = _88_}, {__index = _90_})
|
||
|
|
local str0 = ("\"" .. str:gsub("[%c\\\"]", escs) .. "\"")
|
||
|
|
if getopt(options, "utf8?") then
|
||
|
|
return utf8_escape(str0, options)
|
||
|
|
else
|
||
|
|
return str0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function make_options(t, options)
|
||
|
|
local defaults = nil
|
||
|
|
do
|
||
|
|
local tbl_14_ = {}
|
||
|
|
for k, v in pairs(default_opts) do
|
||
|
|
local k_15_, v_16_ = k, v
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
defaults = tbl_14_
|
||
|
|
end
|
||
|
|
local overrides = {appearances = count_table_appearances(t, {}), level = 0, seen = {len = 0}}
|
||
|
|
for k, v in pairs((options or {})) do
|
||
|
|
defaults[k] = v
|
||
|
|
end
|
||
|
|
for k, v in pairs(overrides) do
|
||
|
|
defaults[k] = v
|
||
|
|
end
|
||
|
|
return defaults
|
||
|
|
end
|
||
|
|
local function _93_(x, options, indent, colon_3f)
|
||
|
|
local indent0 = (indent or 0)
|
||
|
|
local options0 = (options or make_options(x))
|
||
|
|
local x0 = nil
|
||
|
|
if options0.preprocess then
|
||
|
|
x0 = options0.preprocess(x, options0)
|
||
|
|
else
|
||
|
|
x0 = x
|
||
|
|
end
|
||
|
|
local tv = type(x0)
|
||
|
|
local function _96_()
|
||
|
|
local _95_0 = getmetatable(x0)
|
||
|
|
if ((_G.type(_95_0) == "table") and true) then
|
||
|
|
local __fennelview = _95_0.__fennelview
|
||
|
|
return __fennelview
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ((tv == "table") or ((tv == "userdata") and _96_())) then
|
||
|
|
return pp_table(x0, options0, indent0)
|
||
|
|
elseif (tv == "number") then
|
||
|
|
return number__3estring(x0)
|
||
|
|
else
|
||
|
|
local function _98_()
|
||
|
|
if (colon_3f ~= nil) then
|
||
|
|
return colon_3f
|
||
|
|
elseif ("function" == type(options0["prefer-colon?"])) then
|
||
|
|
return options0["prefer-colon?"](x0)
|
||
|
|
else
|
||
|
|
return getopt(options0, "prefer-colon?")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
if ((tv == "string") and colon_string_3f(x0) and _98_()) then
|
||
|
|
return (":" .. x0)
|
||
|
|
elseif (tv == "string") then
|
||
|
|
return pp_string(x0, options0, indent0)
|
||
|
|
elseif ((tv == "boolean") or (tv == "nil")) then
|
||
|
|
return tostring(x0)
|
||
|
|
else
|
||
|
|
return ("#<" .. tostring(x0) .. ">")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
pp = _93_
|
||
|
|
local function view(x, _3foptions)
|
||
|
|
return pp(x, make_options(x, _3foptions), 0)
|
||
|
|
end
|
||
|
|
return view
|
||
|
|
end
|
||
|
|
package.preload["fennel.utils"] = package.preload["fennel.utils"] or function(...)
|
||
|
|
local view = require("fennel.view")
|
||
|
|
local version = "1.3.1"
|
||
|
|
local function luajit_vm_3f()
|
||
|
|
return ((nil ~= _G.jit) and (type(_G.jit) == "table") and (nil ~= _G.jit.on) and (nil ~= _G.jit.off) and (type(_G.jit.version_num) == "number"))
|
||
|
|
end
|
||
|
|
local function luajit_vm_version()
|
||
|
|
local jit_os = nil
|
||
|
|
if (_G.jit.os == "OSX") then
|
||
|
|
jit_os = "macOS"
|
||
|
|
else
|
||
|
|
jit_os = _G.jit.os
|
||
|
|
end
|
||
|
|
return (_G.jit.version .. " " .. jit_os .. "/" .. _G.jit.arch)
|
||
|
|
end
|
||
|
|
local function fengari_vm_3f()
|
||
|
|
return ((nil ~= _G.fengari) and (type(_G.fengari) == "table") and (nil ~= _G.fengari.VERSION) and (type(_G.fengari.VERSION_NUM) == "number"))
|
||
|
|
end
|
||
|
|
local function fengari_vm_version()
|
||
|
|
return (_G.fengari.RELEASE .. " (" .. _VERSION .. ")")
|
||
|
|
end
|
||
|
|
local function lua_vm_version()
|
||
|
|
if luajit_vm_3f() then
|
||
|
|
return luajit_vm_version()
|
||
|
|
elseif fengari_vm_3f() then
|
||
|
|
return fengari_vm_version()
|
||
|
|
else
|
||
|
|
return ("PUC " .. _VERSION)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function runtime_version(_3fas_table)
|
||
|
|
if _3fas_table then
|
||
|
|
return {fennel = version, lua = lua_vm_version()}
|
||
|
|
else
|
||
|
|
return ("Fennel " .. version .. " on " .. lua_vm_version())
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function warn(message)
|
||
|
|
if (_G.io and _G.io.stderr) then
|
||
|
|
return (_G.io.stderr):write(("--WARNING: %s\n"):format(tostring(message)))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local len = nil
|
||
|
|
do
|
||
|
|
local _104_0, _105_0 = pcall(require, "utf8")
|
||
|
|
if ((_104_0 == true) and (nil ~= _105_0)) then
|
||
|
|
local utf8 = _105_0
|
||
|
|
len = utf8.len
|
||
|
|
else
|
||
|
|
local _ = _104_0
|
||
|
|
len = string.len
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local kv_order = {boolean = 2, number = 1, string = 3, table = 4}
|
||
|
|
local function kv_compare(a, b)
|
||
|
|
local _107_0, _108_0 = type(a), type(b)
|
||
|
|
if (((_107_0 == "number") and (_108_0 == "number")) or ((_107_0 == "string") and (_108_0 == "string"))) then
|
||
|
|
return (a < b)
|
||
|
|
else
|
||
|
|
local function _109_()
|
||
|
|
local a_t = _107_0
|
||
|
|
local b_t = _108_0
|
||
|
|
return (a_t ~= b_t)
|
||
|
|
end
|
||
|
|
if (((nil ~= _107_0) and (nil ~= _108_0)) and _109_()) then
|
||
|
|
local a_t = _107_0
|
||
|
|
local b_t = _108_0
|
||
|
|
return ((kv_order[a_t] or 5) < (kv_order[b_t] or 5))
|
||
|
|
else
|
||
|
|
local _ = _107_0
|
||
|
|
return (tostring(a) < tostring(b))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function add_stable_keys(succ, prev_key, src, _3fpred)
|
||
|
|
local first = prev_key
|
||
|
|
local last = nil
|
||
|
|
do
|
||
|
|
local prev = prev_key
|
||
|
|
for _, k in ipairs(src) do
|
||
|
|
if ((prev == k) or (succ[k] ~= nil) or (_3fpred and not _3fpred(k))) then
|
||
|
|
prev = prev
|
||
|
|
else
|
||
|
|
if (first == nil) then
|
||
|
|
first = k
|
||
|
|
prev = k
|
||
|
|
elseif (prev ~= nil) then
|
||
|
|
succ[prev] = k
|
||
|
|
prev = k
|
||
|
|
else
|
||
|
|
prev = k
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
last = prev
|
||
|
|
end
|
||
|
|
return succ, last, first
|
||
|
|
end
|
||
|
|
local function stablepairs(t)
|
||
|
|
local mt_keys = nil
|
||
|
|
do
|
||
|
|
local _113_0 = getmetatable(t)
|
||
|
|
if (nil ~= _113_0) then
|
||
|
|
_113_0 = _113_0.keys
|
||
|
|
end
|
||
|
|
mt_keys = _113_0
|
||
|
|
end
|
||
|
|
local succ, prev, first_mt = nil, nil, nil
|
||
|
|
local function _115_(_241)
|
||
|
|
return t[_241]
|
||
|
|
end
|
||
|
|
succ, prev, first_mt = add_stable_keys({}, nil, (mt_keys or {}), _115_)
|
||
|
|
local pairs_keys = nil
|
||
|
|
do
|
||
|
|
local _116_0 = nil
|
||
|
|
do
|
||
|
|
local tbl_17_ = {}
|
||
|
|
local i_18_ = #tbl_17_
|
||
|
|
for k in pairs(t) do
|
||
|
|
local val_19_ = k
|
||
|
|
if (nil ~= val_19_) then
|
||
|
|
i_18_ = (i_18_ + 1)
|
||
|
|
tbl_17_[i_18_] = val_19_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_116_0 = tbl_17_
|
||
|
|
end
|
||
|
|
table.sort(_116_0, kv_compare)
|
||
|
|
pairs_keys = _116_0
|
||
|
|
end
|
||
|
|
local succ0, _, first_after_mt = add_stable_keys(succ, prev, pairs_keys)
|
||
|
|
local first = nil
|
||
|
|
if (first_mt == nil) then
|
||
|
|
first = first_after_mt
|
||
|
|
else
|
||
|
|
first = first_mt
|
||
|
|
end
|
||
|
|
local function stablenext(tbl, key)
|
||
|
|
local _119_0 = nil
|
||
|
|
if (key == nil) then
|
||
|
|
_119_0 = first
|
||
|
|
else
|
||
|
|
_119_0 = succ0[key]
|
||
|
|
end
|
||
|
|
if (nil ~= _119_0) then
|
||
|
|
local next_key = _119_0
|
||
|
|
local _121_0 = tbl[next_key]
|
||
|
|
if (_121_0 ~= nil) then
|
||
|
|
return next_key, _121_0
|
||
|
|
else
|
||
|
|
return _121_0
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return stablenext, t, nil
|
||
|
|
end
|
||
|
|
local function get_in(tbl, path, _3ffallback)
|
||
|
|
assert(("table" == type(tbl)), "get-in expects path to be a table")
|
||
|
|
if (0 == #path) then
|
||
|
|
return _3ffallback
|
||
|
|
else
|
||
|
|
local _124_0 = nil
|
||
|
|
do
|
||
|
|
local t = tbl
|
||
|
|
for _, k in ipairs(path) do
|
||
|
|
if (nil == t) then break end
|
||
|
|
local _125_0 = type(t)
|
||
|
|
if (_125_0 == "table") then
|
||
|
|
t = t[k]
|
||
|
|
else
|
||
|
|
t = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_124_0 = t
|
||
|
|
end
|
||
|
|
if (nil ~= _124_0) then
|
||
|
|
local res = _124_0
|
||
|
|
return res
|
||
|
|
else
|
||
|
|
local _ = _124_0
|
||
|
|
return _3ffallback
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function map(t, f, _3fout)
|
||
|
|
local out = (_3fout or {})
|
||
|
|
local f0 = nil
|
||
|
|
if (type(f) == "function") then
|
||
|
|
f0 = f
|
||
|
|
else
|
||
|
|
local function _129_(_241)
|
||
|
|
return _241[f]
|
||
|
|
end
|
||
|
|
f0 = _129_
|
||
|
|
end
|
||
|
|
for _, x in ipairs(t) do
|
||
|
|
local _131_0 = f0(x)
|
||
|
|
if (nil ~= _131_0) then
|
||
|
|
local v = _131_0
|
||
|
|
table.insert(out, v)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return out
|
||
|
|
end
|
||
|
|
local function kvmap(t, f, _3fout)
|
||
|
|
local out = (_3fout or {})
|
||
|
|
local f0 = nil
|
||
|
|
if (type(f) == "function") then
|
||
|
|
f0 = f
|
||
|
|
else
|
||
|
|
local function _133_(_241)
|
||
|
|
return _241[f]
|
||
|
|
end
|
||
|
|
f0 = _133_
|
||
|
|
end
|
||
|
|
for k, x in stablepairs(t) do
|
||
|
|
local _135_0, _136_0 = f0(k, x)
|
||
|
|
if ((nil ~= _135_0) and (nil ~= _136_0)) then
|
||
|
|
local key = _135_0
|
||
|
|
local value = _136_0
|
||
|
|
out[key] = value
|
||
|
|
elseif (nil ~= _135_0) then
|
||
|
|
local value = _135_0
|
||
|
|
table.insert(out, value)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return out
|
||
|
|
end
|
||
|
|
local function copy(from, _3fto)
|
||
|
|
local tbl_14_ = (_3fto or {})
|
||
|
|
for k, v in pairs((from or {})) do
|
||
|
|
local k_15_, v_16_ = k, v
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return tbl_14_
|
||
|
|
end
|
||
|
|
local function member_3f(x, tbl, _3fn)
|
||
|
|
local _139_0 = tbl[(_3fn or 1)]
|
||
|
|
if (_139_0 == x) then
|
||
|
|
return true
|
||
|
|
elseif (_139_0 == nil) then
|
||
|
|
return nil
|
||
|
|
else
|
||
|
|
local _ = _139_0
|
||
|
|
return member_3f(x, tbl, ((_3fn or 1) + 1))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function maxn(tbl)
|
||
|
|
local max = 0
|
||
|
|
for k in pairs(tbl) do
|
||
|
|
if ("number" == type(k)) then
|
||
|
|
max = math.max(max, k)
|
||
|
|
else
|
||
|
|
max = max
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return max
|
||
|
|
end
|
||
|
|
local function every_3f(t, predicate)
|
||
|
|
local result = true
|
||
|
|
for _, item in ipairs(t) do
|
||
|
|
if not result then break end
|
||
|
|
result = predicate(item)
|
||
|
|
end
|
||
|
|
return result
|
||
|
|
end
|
||
|
|
local function allpairs(tbl)
|
||
|
|
assert((type(tbl) == "table"), "allpairs expects a table")
|
||
|
|
local t = tbl
|
||
|
|
local seen = {}
|
||
|
|
local function allpairs_next(_, state)
|
||
|
|
local next_state, value = next(t, state)
|
||
|
|
if seen[next_state] then
|
||
|
|
return allpairs_next(nil, next_state)
|
||
|
|
elseif next_state then
|
||
|
|
seen[next_state] = true
|
||
|
|
return next_state, value
|
||
|
|
else
|
||
|
|
local _142_0 = getmetatable(t)
|
||
|
|
if ((_G.type(_142_0) == "table") and true) then
|
||
|
|
local __index = _142_0.__index
|
||
|
|
if ("table" == type(__index)) then
|
||
|
|
t = __index
|
||
|
|
return allpairs_next(t)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return allpairs_next
|
||
|
|
end
|
||
|
|
local function deref(self)
|
||
|
|
return self[1]
|
||
|
|
end
|
||
|
|
local nil_sym = nil
|
||
|
|
local function list__3estring(self, _3fview, _3foptions, _3findent)
|
||
|
|
local safe = {}
|
||
|
|
local view0 = nil
|
||
|
|
if _3fview then
|
||
|
|
local function _146_(_241)
|
||
|
|
return _3fview(_241, _3foptions, _3findent)
|
||
|
|
end
|
||
|
|
view0 = _146_
|
||
|
|
else
|
||
|
|
view0 = view
|
||
|
|
end
|
||
|
|
local max = maxn(self)
|
||
|
|
for i = 1, max do
|
||
|
|
safe[i] = (((self[i] == nil) and nil_sym) or self[i])
|
||
|
|
end
|
||
|
|
return ("(" .. table.concat(map(safe, view0), " ", 1, max) .. ")")
|
||
|
|
end
|
||
|
|
local function comment_view(c)
|
||
|
|
return c, true
|
||
|
|
end
|
||
|
|
local function sym_3d(a, b)
|
||
|
|
return ((deref(a) == deref(b)) and (getmetatable(a) == getmetatable(b)))
|
||
|
|
end
|
||
|
|
local function sym_3c(a, b)
|
||
|
|
return (a[1] < tostring(b))
|
||
|
|
end
|
||
|
|
local symbol_mt = {"SYMBOL", __eq = sym_3d, __fennelview = deref, __lt = sym_3c, __tostring = deref}
|
||
|
|
local expr_mt = nil
|
||
|
|
local function _148_(x)
|
||
|
|
return tostring(deref(x))
|
||
|
|
end
|
||
|
|
expr_mt = {"EXPR", __tostring = _148_}
|
||
|
|
local list_mt = {"LIST", __fennelview = list__3estring, __tostring = list__3estring}
|
||
|
|
local comment_mt = {"COMMENT", __eq = sym_3d, __fennelview = comment_view, __lt = sym_3c, __tostring = deref}
|
||
|
|
local sequence_marker = {"SEQUENCE"}
|
||
|
|
local varg_mt = {"VARARG", __fennelview = deref, __tostring = deref}
|
||
|
|
local getenv = nil
|
||
|
|
local function _149_()
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
getenv = ((os and os.getenv) or _149_)
|
||
|
|
local function debug_on_3f(flag)
|
||
|
|
local level = (getenv("FENNEL_DEBUG") or "")
|
||
|
|
return ((level == "all") or level:find(flag))
|
||
|
|
end
|
||
|
|
local function list(...)
|
||
|
|
return setmetatable({...}, list_mt)
|
||
|
|
end
|
||
|
|
local function sym(str, _3fsource)
|
||
|
|
local _150_
|
||
|
|
do
|
||
|
|
local tbl_14_ = {str}
|
||
|
|
for k, v in pairs((_3fsource or {})) do
|
||
|
|
local k_15_, v_16_ = nil, nil
|
||
|
|
if (type(k) == "string") then
|
||
|
|
k_15_, v_16_ = k, v
|
||
|
|
else
|
||
|
|
k_15_, v_16_ = nil
|
||
|
|
end
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_150_ = tbl_14_
|
||
|
|
end
|
||
|
|
return setmetatable(_150_, symbol_mt)
|
||
|
|
end
|
||
|
|
nil_sym = sym("nil")
|
||
|
|
local function sequence(...)
|
||
|
|
local function _153_(seq, view0, inspector, indent)
|
||
|
|
local opts = nil
|
||
|
|
do
|
||
|
|
inspector["empty-as-sequence?"] = {after = inspector["empty-as-sequence?"], once = true}
|
||
|
|
inspector["metamethod?"] = {after = inspector["metamethod?"], once = false}
|
||
|
|
opts = inspector
|
||
|
|
end
|
||
|
|
return view0(seq, opts, indent)
|
||
|
|
end
|
||
|
|
return setmetatable({...}, {__fennelview = _153_, sequence = sequence_marker})
|
||
|
|
end
|
||
|
|
local function expr(strcode, etype)
|
||
|
|
return setmetatable({strcode, type = etype}, expr_mt)
|
||
|
|
end
|
||
|
|
local function comment_2a(contents, _3fsource)
|
||
|
|
local _154_ = (_3fsource or {})
|
||
|
|
local filename = _154_["filename"]
|
||
|
|
local line = _154_["line"]
|
||
|
|
return setmetatable({contents, filename = filename, line = line}, comment_mt)
|
||
|
|
end
|
||
|
|
local function varg(_3fsource)
|
||
|
|
local _155_
|
||
|
|
do
|
||
|
|
local tbl_14_ = {"..."}
|
||
|
|
for k, v in pairs((_3fsource or {})) do
|
||
|
|
local k_15_, v_16_ = nil, nil
|
||
|
|
if (type(k) == "string") then
|
||
|
|
k_15_, v_16_ = k, v
|
||
|
|
else
|
||
|
|
k_15_, v_16_ = nil
|
||
|
|
end
|
||
|
|
if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
|
||
|
|
tbl_14_[k_15_] = v_16_
|
||
|
|
end
|
||
|
|
end
|
||
|
|
_155_ = tbl_14_
|
||
|
|
end
|
||
|
|
return setmetatable(_155_, varg_mt)
|
||
|
|
end
|
||
|
|
local function expr_3f(x)
|
||
|
|
return ((type(x) == "table") and (getmetatable(x) == expr_mt) and x)
|
||
|
|
end
|
||
|
|
local function varg_3f(x)
|
||
|
|
return ((type(x) == "table") and (getmetatable(x) == varg_mt) and x)
|
||
|
|
end
|
||
|
|
local function list_3f(x)
|
||
|
|
return ((type(x) == "table") and (getmetatable(x) == list_mt) and x)
|
||
|
|
end
|
||
|
|
local function sym_3f(x, _3fname)
|
||
|
|
return ((type(x) == "table") and (getmetatable(x) == symbol_mt) and ((nil == _3fname) or (x[1] == _3fname)) and x)
|
||
|
|
end
|
||
|
|
local function sequence_3f(x)
|
||
|
|
local mt = ((type(x) == "table") and getmetatable(x))
|
||
|
|
return (mt and (mt.sequence == sequence_marker) and x)
|
||
|
|
end
|
||
|
|
local function comment_3f(x)
|
||
|
|
return ((type(x) == "table") and (getmetatable(x) == comment_mt) and x)
|
||
|
|
end
|
||
|
|
local function table_3f(x)
|
||
|
|
return ((type(x) == "table") and not varg_3f(x) and (getmetatable(x) ~= list_mt) and (getmetatable(x) ~= symbol_mt) and not comment_3f(x) and x)
|
||
|
|
end
|
||
|
|
local function kv_table_3f(t)
|
||
|
|
if table_3f(t) then
|
||
|
|
local nxt, t0, k = pairs(t)
|
||
|
|
local len0 = #t0
|
||
|
|
local next_state = nil
|
||
|
|
if (0 == len0) then
|
||
|
|
next_state = k
|
||
|
|
else
|
||
|
|
next_state = len0
|
||
|
|
end
|
||
|
|
return ((nil ~= nxt(t0, next_state)) and t0)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function string_3f(x)
|
||
|
|
return (type(x) == "string")
|
||
|
|
end
|
||
|
|
local function multi_sym_3f(str)
|
||
|
|
if sym_3f(str) then
|
||
|
|
return multi_sym_3f(tostring(str))
|
||
|
|
elseif (type(str) ~= "string") then
|
||
|
|
return false
|
||
|
|
else
|
||
|
|
local function _160_()
|
||
|
|
local parts = {}
|
||
|
|
for part in str:gmatch("[^%.%:]+[%.%:]?") do
|
||
|
|
local last_char = part:sub(( - 1))
|
||
|
|
if (last_char == ":") then
|
||
|
|
parts["multi-sym-method-call"] = true
|
||
|
|
end
|
||
|
|
if ((last_char == ":") or (last_char == ".")) then
|
||
|
|
parts[(#parts + 1)] = part:sub(1, ( - 2))
|
||
|
|
else
|
||
|
|
parts[(#parts + 1)] = part
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return ((0 < #parts) and parts)
|
||
|
|
end
|
||
|
|
return ((str:match("%.") or str:match(":")) and not str:match("%.%.") and (str:byte() ~= string.byte(".")) and (str:byte(( - 1)) ~= string.byte(".")) and _160_())
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function quoted_3f(symbol)
|
||
|
|
return symbol.quoted
|
||
|
|
end
|
||
|
|
local function idempotent_expr_3f(x)
|
||
|
|
return ((type(x) == "string") or (type(x) == "integer") or (type(x) == "number") or (sym_3f(x) and not multi_sym_3f(x)))
|
||
|
|
end
|
||
|
|
local function ast_source(ast)
|
||
|
|
if (table_3f(ast) or sequence_3f(ast)) then
|
||
|
|
return (getmetatable(ast) or {})
|
||
|
|
elseif ("table" == type(ast)) then
|
||
|
|
return ast
|
||
|
|
else
|
||
|
|
return {}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function walk_tree(root, f, _3fcustom_iterator)
|
||
|
|
local function walk(iterfn, parent, idx, node)
|
||
|
|
if f(idx, node, parent) then
|
||
|
|
for k, v in iterfn(node) do
|
||
|
|
walk(iterfn, node, k, v)
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
walk((_3fcustom_iterator or pairs), nil, nil, root)
|
||
|
|
return root
|
||
|
|
end
|
||
|
|
local lua_keywords = {["and"] = true, ["break"] = true, ["do"] = true, ["else"] = true, ["elseif"] = true, ["end"] = true, ["false"] = true, ["for"] = true, ["function"] = true, ["goto"] = true, ["if"] = true, ["in"] = true, ["local"] = true, ["nil"] = true, ["not"] = true, ["or"] = true, ["repeat"] = true, ["return"] = true, ["then"] = true, ["true"] = true, ["until"] = true, ["while"] = true}
|
||
|
|
local function valid_lua_identifier_3f(str)
|
||
|
|
return (str:match("^[%a_][%w_]*$") and not lua_keywords[str])
|
||
|
|
end
|
||
|
|
local propagated_options = {"allowedGlobals", "indent", "correlate", "useMetadata", "env", "compiler-env", "compilerEnv"}
|
||
|
|
local function propagate_options(options, subopts)
|
||
|
|
for _, name in ipairs(propagated_options) do
|
||
|
|
subopts[name] = options[name]
|
||
|
|
end
|
||
|
|
return subopts
|
||
|
|
end
|
||
|
|
local root = nil
|
||
|
|
local function _166_()
|
||
|
|
end
|
||
|
|
root = {chunk = nil, options = nil, reset = _166_, scope = nil}
|
||
|
|
root["set-reset"] = function(_167_0)
|
||
|
|
local _168_ = _167_0
|
||
|
|
local chunk = _168_["chunk"]
|
||
|
|
local options = _168_["options"]
|
||
|
|
local reset = _168_["reset"]
|
||
|
|
local scope = _168_["scope"]
|
||
|
|
root.reset = function()
|
||
|
|
root.chunk, root.scope, root.options, root.reset = chunk, scope, options, reset
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
return root.reset
|
||
|
|
end
|
||
|
|
local warned = {}
|
||
|
|
local function check_plugin_version(_169_0)
|
||
|
|
local _170_ = _169_0
|
||
|
|
local plugin = _170_
|
||
|
|
local name = _170_["name"]
|
||
|
|
local versions = _170_["versions"]
|
||
|
|
if (not member_3f(version:gsub("-dev", ""), (versions or {})) and not warned[plugin]) then
|
||
|
|
warned[plugin] = true
|
||
|
|
return warn(string.format("plugin %s does not support Fennel version %s", (name or "unknown"), version))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function hook_opts(event, _3foptions, ...)
|
||
|
|
local plugins = nil
|
||
|
|
local function _173_(...)
|
||
|
|
local _172_0 = _3foptions
|
||
|
|
if (nil ~= _172_0) then
|
||
|
|
_172_0 = _172_0.plugins
|
||
|
|
end
|
||
|
|
return _172_0
|
||
|
|
end
|
||
|
|
local function _176_(...)
|
||
|
|
local _175_0 = root.options
|
||
|
|
if (nil ~= _175_0) then
|
||
|
|
_175_0 = _175_0.plugins
|
||
|
|
end
|
||
|
|
return _175_0
|
||
|
|
end
|
||
|
|
plugins = (_173_(...) or _176_(...))
|
||
|
|
if plugins then
|
||
|
|
local result = nil
|
||
|
|
for _, plugin in ipairs(plugins) do
|
||
|
|
if result then break end
|
||
|
|
check_plugin_version(plugin)
|
||
|
|
local _178_0 = plugin[event]
|
||
|
|
if (nil ~= _178_0) then
|
||
|
|
local f = _178_0
|
||
|
|
result = f(...)
|
||
|
|
else
|
||
|
|
result = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return result
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function hook(event, ...)
|
||
|
|
return hook_opts(event, root.options, ...)
|
||
|
|
end
|
||
|
|
return {["ast-source"] = ast_source, ["comment?"] = comment_3f, ["debug-on?"] = debug_on_3f, ["every?"] = every_3f, ["expr?"] = expr_3f, ["get-in"] = get_in, ["hook-opts"] = hook_opts, ["idempotent-expr?"] = idempotent_expr_3f, ["kv-table?"] = kv_table_3f, ["list?"] = list_3f, ["lua-keywords"] = lua_keywords, ["macro-path"] = table.concat({"./?.fnl", "./?/init-macros.fnl", "./?/init.fnl", getenv("FENNEL_MACRO_PATH")}, ";"), ["member?"] = member_3f, ["multi-sym?"] = multi_sym_3f, ["propagate-options"] = propagate_options, ["quoted?"] = quoted_3f, ["runtime-version"] = runtime_version, ["sequence?"] = sequence_3f, ["string?"] = string_3f, ["sym?"] = sym_3f, ["table?"] = table_3f, ["valid-lua-identifier?"] = valid_lua_identifier_3f, ["varg?"] = varg_3f, ["walk-tree"] = walk_tree, allpairs = allpairs, comment = comment_2a, copy = copy, expr = expr, hook = hook, kvmap = kvmap, len = len, list = list, map = map, maxn = maxn, path = table.concat({"./?.fnl", "./?/init.fnl", getenv("FENNEL_PATH")}, ";"), root = root, sequence = sequence, stablepairs = stablepairs, sym = sym, varg = varg, version = version, warn = warn}
|
||
|
|
end
|
||
|
|
utils = require("fennel.utils")
|
||
|
|
local parser = require("fennel.parser")
|
||
|
|
local compiler = require("fennel.compiler")
|
||
|
|
local specials = require("fennel.specials")
|
||
|
|
local repl = require("fennel.repl")
|
||
|
|
local view = require("fennel.view")
|
||
|
|
local function eval_env(env, opts)
|
||
|
|
if (env == "_COMPILER") then
|
||
|
|
local env0 = specials["make-compiler-env"](nil, compiler.scopes.compiler, {}, opts)
|
||
|
|
if (opts.allowedGlobals == nil) then
|
||
|
|
opts.allowedGlobals = specials["current-global-names"](env0)
|
||
|
|
end
|
||
|
|
return specials["wrap-env"](env0)
|
||
|
|
else
|
||
|
|
return (env and specials["wrap-env"](env))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function eval_opts(options, str)
|
||
|
|
local opts = utils.copy(options)
|
||
|
|
if (opts.allowedGlobals == nil) then
|
||
|
|
opts.allowedGlobals = specials["current-global-names"](opts.env)
|
||
|
|
end
|
||
|
|
if (not opts.filename and not opts.source) then
|
||
|
|
opts.source = str
|
||
|
|
end
|
||
|
|
if (opts.env == "_COMPILER") then
|
||
|
|
opts.scope = compiler["make-scope"](compiler.scopes.compiler)
|
||
|
|
end
|
||
|
|
return opts
|
||
|
|
end
|
||
|
|
local function eval(str, _3foptions, ...)
|
||
|
|
local opts = eval_opts(_3foptions, str)
|
||
|
|
local env = eval_env(opts.env, opts)
|
||
|
|
local lua_source = compiler["compile-string"](str, opts)
|
||
|
|
local loader = nil
|
||
|
|
local function _732_(...)
|
||
|
|
if opts.filename then
|
||
|
|
return ("@" .. opts.filename)
|
||
|
|
else
|
||
|
|
return str
|
||
|
|
end
|
||
|
|
end
|
||
|
|
loader = specials["load-code"](lua_source, env, _732_(...))
|
||
|
|
opts.filename = nil
|
||
|
|
return loader(...)
|
||
|
|
end
|
||
|
|
local function dofile_2a(filename, _3foptions, ...)
|
||
|
|
local opts = utils.copy(_3foptions)
|
||
|
|
local f = assert(io.open(filename, "rb"))
|
||
|
|
local source = assert(f:read("*all"), ("Could not read " .. filename))
|
||
|
|
f:close()
|
||
|
|
opts.filename = filename
|
||
|
|
return eval(source, opts, ...)
|
||
|
|
end
|
||
|
|
local function syntax()
|
||
|
|
local body_3f = {"when", "with-open", "collect", "icollect", "fcollect", "lambda", "\206\187", "macro", "match", "match-try", "case", "case-try", "accumulate", "faccumulate", "doto"}
|
||
|
|
local binding_3f = {"collect", "icollect", "fcollect", "each", "for", "let", "with-open", "accumulate", "faccumulate"}
|
||
|
|
local define_3f = {"fn", "lambda", "\206\187", "var", "local", "macro", "macros", "global"}
|
||
|
|
local out = {}
|
||
|
|
for k, v in pairs(compiler.scopes.global.specials) do
|
||
|
|
local metadata = (compiler.metadata[v] or {})
|
||
|
|
out[k] = {["binding-form?"] = utils["member?"](k, binding_3f), ["body-form?"] = metadata["fnl/body-form?"], ["define?"] = utils["member?"](k, define_3f), ["special?"] = true}
|
||
|
|
end
|
||
|
|
for k, v in pairs(compiler.scopes.global.macros) do
|
||
|
|
out[k] = {["binding-form?"] = utils["member?"](k, binding_3f), ["body-form?"] = utils["member?"](k, body_3f), ["define?"] = utils["member?"](k, define_3f), ["macro?"] = true}
|
||
|
|
end
|
||
|
|
for k, v in pairs(_G) do
|
||
|
|
local _733_0 = type(v)
|
||
|
|
if (_733_0 == "function") then
|
||
|
|
out[k] = {["function?"] = true, ["global?"] = true}
|
||
|
|
elseif (_733_0 == "table") then
|
||
|
|
for k2, v2 in pairs(v) do
|
||
|
|
if (("function" == type(v2)) and (k ~= "_G")) then
|
||
|
|
out[(k .. "." .. k2)] = {["function?"] = true, ["global?"] = true}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
out[k] = {["global?"] = true}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return out
|
||
|
|
end
|
||
|
|
local mod = {["ast-source"] = utils["ast-source"], ["comment?"] = utils["comment?"], ["compile-stream"] = compiler["compile-stream"], ["compile-string"] = compiler["compile-string"], ["list?"] = utils["list?"], ["load-code"] = specials["load-code"], ["macro-loaded"] = specials["macro-loaded"], ["macro-path"] = utils["macro-path"], ["macro-searchers"] = specials["macro-searchers"], ["make-searcher"] = specials["make-searcher"], ["multi-sym?"] = utils["multi-sym?"], ["runtime-version"] = utils["runtime-version"], ["search-module"] = specials["search-module"], ["sequence?"] = utils["sequence?"], ["string-stream"] = parser["string-stream"], ["sym-char?"] = parser["sym-char?"], ["sym?"] = utils["sym?"], ["table?"] = utils["table?"], ["varg?"] = utils["varg?"], comment = utils.comment, compile = compiler.compile, compile1 = compiler.compile1, compileStream = compiler["compile-stream"], compileString = compiler["compile-string"], doc = specials.doc, dofile = dofile_2a, eval = eval, gensym = compiler.gensym, granulate = parser.granulate, list = utils.list, loadCode = specials["load-code"], macroLoaded = specials["macro-loaded"], macroPath = utils["macro-path"], macroSearchers = specials["macro-searchers"], makeSearcher = specials["make-searcher"], make_searcher = specials["make-searcher"], mangle = compiler["global-mangling"], metadata = compiler.metadata, parser = parser.parser, path = utils.path, repl = repl, runtimeVersion = utils["runtime-version"], scope = compiler["make-scope"], searchModule = specials["search-module"], searcher = specials["make-searcher"](), sequence = utils.sequence, stringStream = parser["string-stream"], sym = utils.sym, syntax = syntax, traceback = compiler.traceback, unmangle = compiler["global-unmangling"], varg = utils.varg, version = utils.version, view = view}
|
||
|
|
mod.install = function(_3fopts)
|
||
|
|
table.insert((package.searchers or package.loaders), specials["make-searcher"](_3fopts))
|
||
|
|
return mod
|
||
|
|
end
|
||
|
|
utils["fennel-module"] = mod
|
||
|
|
do
|
||
|
|
local module_name = "fennel.macros"
|
||
|
|
local _ = nil
|
||
|
|
local function _736_()
|
||
|
|
return mod
|
||
|
|
end
|
||
|
|
package.preload[module_name] = _736_
|
||
|
|
_ = nil
|
||
|
|
local env = nil
|
||
|
|
do
|
||
|
|
local _737_0 = specials["make-compiler-env"](nil, compiler.scopes.compiler, {})
|
||
|
|
_737_0["utils"] = utils
|
||
|
|
_737_0["fennel"] = mod
|
||
|
|
env = _737_0
|
||
|
|
end
|
||
|
|
local built_ins = eval([===[;; These macros are awkward because their definition cannot rely on the any
|
||
|
|
;; built-in macros, only special forms. (no when, no icollect, etc)
|
||
|
|
|
||
|
|
(fn copy [t]
|
||
|
|
(let [out []]
|
||
|
|
(each [_ v (ipairs t)] (table.insert out v))
|
||
|
|
(setmetatable out (getmetatable t))))
|
||
|
|
|
||
|
|
(fn ->* [val ...]
|
||
|
|
"Thread-first macro.
|
||
|
|
Take the first value and splice it into the second form as its first argument.
|
||
|
|
The value of the second form is spliced into the first arg of the third, etc."
|
||
|
|
(var x val)
|
||
|
|
(each [_ e (ipairs [...])]
|
||
|
|
(let [elt (if (list? e) (copy e) (list e))]
|
||
|
|
(table.insert elt 2 x)
|
||
|
|
(set x elt)))
|
||
|
|
x)
|
||
|
|
|
||
|
|
(fn ->>* [val ...]
|
||
|
|
"Thread-last macro.
|
||
|
|
Same as ->, except splices the value into the last position of each form
|
||
|
|
rather than the first."
|
||
|
|
(var x val)
|
||
|
|
(each [_ e (ipairs [...])]
|
||
|
|
(let [elt (if (list? e) (copy e) (list e))]
|
||
|
|
(table.insert elt x)
|
||
|
|
(set x elt)))
|
||
|
|
x)
|
||
|
|
|
||
|
|
(fn -?>* [val ?e ...]
|
||
|
|
"Nil-safe thread-first macro.
|
||
|
|
Same as -> except will short-circuit with nil when it encounters a nil value."
|
||
|
|
(if (= nil ?e)
|
||
|
|
val
|
||
|
|
(let [el (if (list? ?e) (copy ?e) (list ?e))
|
||
|
|
tmp (gensym)]
|
||
|
|
(table.insert el 2 tmp)
|
||
|
|
`(let [,tmp ,val]
|
||
|
|
(if (not= nil ,tmp)
|
||
|
|
(-?> ,el ,...)
|
||
|
|
,tmp)))))
|
||
|
|
|
||
|
|
(fn -?>>* [val ?e ...]
|
||
|
|
"Nil-safe thread-last macro.
|
||
|
|
Same as ->> except will short-circuit with nil when it encounters a nil value."
|
||
|
|
(if (= nil ?e)
|
||
|
|
val
|
||
|
|
(let [el (if (list? ?e) (copy ?e) (list ?e))
|
||
|
|
tmp (gensym)]
|
||
|
|
(table.insert el tmp)
|
||
|
|
`(let [,tmp ,val]
|
||
|
|
(if (not= ,tmp nil)
|
||
|
|
(-?>> ,el ,...)
|
||
|
|
,tmp)))))
|
||
|
|
|
||
|
|
(fn ?dot [tbl ...]
|
||
|
|
"Nil-safe table look up.
|
||
|
|
Same as . (dot), except will short-circuit with nil when it encounters
|
||
|
|
a nil value in any of subsequent keys."
|
||
|
|
(let [head (gensym :t)
|
||
|
|
lookups `(do
|
||
|
|
(var ,head ,tbl)
|
||
|
|
,head)]
|
||
|
|
(each [_ k (ipairs [...])]
|
||
|
|
;; Kinda gnarly to reassign in place like this, but it emits the best lua.
|
||
|
|
;; With this impl, it emits a flat, concise, and readable set of ifs
|
||
|
|
(table.insert lookups (# lookups) `(if (not= nil ,head)
|
||
|
|
(set ,head (. ,head ,k)))))
|
||
|
|
lookups))
|
||
|
|
|
||
|
|
(fn doto* [val ...]
|
||
|
|
"Evaluate val and splice it into the first argument of subsequent forms."
|
||
|
|
(assert (not= val nil) "missing subject")
|
||
|
|
(let [rebind? (or (not (sym? val))
|
||
|
|
(multi-sym? val))
|
||
|
|
name (if rebind? (gensym) val)
|
||
|
|
form (if rebind? `(let [,name ,val]) `(do))]
|
||
|
|
(each [_ elt (ipairs [...])]
|
||
|
|
(let [elt (if (list? elt) (copy elt) (list elt))]
|
||
|
|
(table.insert elt 2 name)
|
||
|
|
(table.insert form elt)))
|
||
|
|
(table.insert form name)
|
||
|
|
form))
|
||
|
|
|
||
|
|
(fn when* [condition body1 ...]
|
||
|
|
"Evaluate body for side-effects only when condition is truthy."
|
||
|
|
(assert body1 "expected body")
|
||
|
|
`(if ,condition
|
||
|
|
(do
|
||
|
|
,body1
|
||
|
|
,...)))
|
||
|
|
|
||
|
|
(fn with-open* [closable-bindings ...]
|
||
|
|
"Like `let`, but invokes (v:close) on each binding after evaluating the body.
|
||
|
|
The body is evaluated inside `xpcall` so that bound values will be closed upon
|
||
|
|
encountering an error before propagating it."
|
||
|
|
(let [bodyfn `(fn []
|
||
|
|
,...)
|
||
|
|
closer `(fn close-handlers# [ok# ...]
|
||
|
|
(if ok# ... (error ... 0)))
|
||
|
|
traceback `(. (or package.loaded.fennel debug) :traceback)]
|
||
|
|
(for [i 1 (length closable-bindings) 2]
|
||
|
|
(assert (sym? (. closable-bindings i))
|
||
|
|
"with-open only allows symbols in bindings")
|
||
|
|
(table.insert closer 4 `(: ,(. closable-bindings i) :close)))
|
||
|
|
`(let ,closable-bindings
|
||
|
|
,closer
|
||
|
|
(close-handlers# (_G.xpcall ,bodyfn ,traceback)))))
|
||
|
|
|
||
|
|
(fn extract-into [iter-tbl]
|
||
|
|
(var (into iter-out found?) (values [] (copy iter-tbl)))
|
||
|
|
(for [i (length iter-tbl) 2 -1]
|
||
|
|
(let [item (. iter-tbl i)]
|
||
|
|
(if (or (sym? item "&into") (= :into item))
|
||
|
|
(do
|
||
|
|
(assert (not found?) "expected only one &into clause")
|
||
|
|
(set found? true)
|
||
|
|
(set into (. iter-tbl (+ i 1)))
|
||
|
|
(table.remove iter-out i)
|
||
|
|
(table.remove iter-out i)))))
|
||
|
|
(assert (or (not found?) (sym? into) (table? into) (list? into))
|
||
|
|
"expected table, function call, or symbol in &into clause")
|
||
|
|
(values into iter-out))
|
||
|
|
|
||
|
|
(fn collect* [iter-tbl key-expr value-expr ...]
|
||
|
|
"Return a table made by running an iterator and evaluating an expression that
|
||
|
|
returns key-value pairs to be inserted sequentially into the table. This can
|
||
|
|
be thought of as a table comprehension. The body should provide two expressions
|
||
|
|
(used as key and value) or nil, which causes it to be omitted.
|
||
|
|
|
||
|
|
For example,
|
||
|
|
(collect [k v (pairs {:apple \"red\" :orange \"orange\"})]
|
||
|
|
(values v k))
|
||
|
|
returns
|
||
|
|
{:red \"apple\" :orange \"orange\"}
|
||
|
|
|
||
|
|
Supports an &into clause after the iterator to put results in an existing table.
|
||
|
|
Supports early termination with an &until clause."
|
||
|
|
(assert (and (sequence? iter-tbl) (<= 2 (length iter-tbl)))
|
||
|
|
"expected iterator binding table")
|
||
|
|
(assert (not= nil key-expr) "expected key and value expression")
|
||
|
|
(assert (= nil ...)
|
||
|
|
"expected 1 or 2 body expressions; wrap multiple expressions with do")
|
||
|
|
(let [kv-expr (if (= nil value-expr) key-expr `(values ,key-expr ,value-expr))
|
||
|
|
(into iter) (extract-into iter-tbl)]
|
||
|
|
`(let [tbl# ,into]
|
||
|
|
(each ,iter
|
||
|
|
(let [(k# v#) ,kv-expr]
|
||
|
|
(if (and (not= k# nil) (not= v# nil))
|
||
|
|
(tset tbl# k# v#))))
|
||
|
|
tbl#)))
|
||
|
|
|
||
|
|
(fn seq-collect [how iter-tbl value-expr ...]
|
||
|
|
"Common part between icollect and fcollect for producing sequential tables.
|
||
|
|
|
||
|
|
Iteration code only differs in using the for or each keyword, the rest
|
||
|
|
of the generated code is identical."
|
||
|
|
(assert (not= nil value-expr) "expected table value expression")
|
||
|
|
(assert (= nil ...)
|
||
|
|
"expected exactly one body expression. Wrap multiple expressions in do")
|
||
|
|
(let [(into iter) (extract-into iter-tbl)]
|
||
|
|
`(let [tbl# ,into]
|
||
|
|
;; believe it or not, using a var here has a pretty good performance
|
||
|
|
;; boost: https://p.hagelb.org/icollect-performance.html
|
||
|
|
(var i# (length tbl#))
|
||
|
|
(,how ,iter
|
||
|
|
(let [val# ,value-expr]
|
||
|
|
(when (not= nil val#)
|
||
|
|
(set i# (+ i# 1))
|
||
|
|
(tset tbl# i# val#))))
|
||
|
|
tbl#)))
|
||
|
|
|
||
|
|
(fn icollect* [iter-tbl value-expr ...]
|
||
|
|
"Return a sequential table made by running an iterator and evaluating an
|
||
|
|
expression that returns values to be inserted sequentially into the table.
|
||
|
|
This can be thought of as a table comprehension. If the body evaluates to nil
|
||
|
|
that element is omitted.
|
||
|
|
|
||
|
|
For example,
|
||
|
|
(icollect [_ v (ipairs [1 2 3 4 5])]
|
||
|
|
(when (not= v 3)
|
||
|
|
(* v v)))
|
||
|
|
returns
|
||
|
|
[1 4 16 25]
|
||
|
|
|
||
|
|
Supports an &into clause after the iterator to put results in an existing table.
|
||
|
|
Supports early termination with an &until clause."
|
||
|
|
(assert (and (sequence? iter-tbl) (<= 2 (length iter-tbl)))
|
||
|
|
"expected iterator binding table")
|
||
|
|
(seq-collect 'each iter-tbl value-expr ...))
|
||
|
|
|
||
|
|
(fn fcollect* [iter-tbl value-expr ...]
|
||
|
|
"Return a sequential table made by advancing a range as specified by
|
||
|
|
for, and evaluating an expression that returns values to be inserted
|
||
|
|
sequentially into the table. This can be thought of as a range
|
||
|
|
comprehension. If the body evaluates to nil that element is omitted.
|
||
|
|
|
||
|
|
For example,
|
||
|
|
(fcollect [i 1 10 2]
|
||
|
|
(when (not= i 3)
|
||
|
|
(* i i)))
|
||
|
|
returns
|
||
|
|
[1 25 49 81]
|
||
|
|
|
||
|
|
Supports an &into clause after the range to put results in an existing table.
|
||
|
|
Supports early termination with an &until clause."
|
||
|
|
(assert (and (sequence? iter-tbl) (< 2 (length iter-tbl)))
|
||
|
|
"expected range binding table")
|
||
|
|
(seq-collect 'for iter-tbl value-expr ...))
|
||
|
|
|
||
|
|
(fn accumulate-impl [for? iter-tbl body ...]
|
||
|
|
(assert (and (sequence? iter-tbl) (<= 4 (length iter-tbl)))
|
||
|
|
"expected initial value and iterator binding table")
|
||
|
|
(assert (not= nil body) "expected body expression")
|
||
|
|
(assert (= nil ...)
|
||
|
|
"expected exactly one body expression. Wrap multiple expressions with do")
|
||
|
|
(let [[accum-var accum-init] iter-tbl
|
||
|
|
iter (sym (if for? "for" "each"))] ; accumulate or faccumulate?
|
||
|
|
`(do
|
||
|
|
(var ,accum-var ,accum-init)
|
||
|
|
(,iter ,[(unpack iter-tbl 3)]
|
||
|
|
(set ,accum-var ,body))
|
||
|
|
,(if (list? accum-var)
|
||
|
|
(list (sym :values) (unpack accum-var))
|
||
|
|
accum-var))))
|
||
|
|
|
||
|
|
(fn accumulate* [iter-tbl body ...]
|
||
|
|
"Accumulation macro.
|
||
|
|
|
||
|
|
It takes a binding table and an expression as its arguments. In the binding
|
||
|
|
table, the first form starts out bound to the second value, which is an initial
|
||
|
|
accumulator. The rest are an iterator binding table in the format `each` takes.
|
||
|
|
|
||
|
|
It runs through the iterator in each step of which the given expression is
|
||
|
|
evaluated, and the accumulator is set to the value of the expression. It
|
||
|
|
eventually returns the final value of the accumulator.
|
||
|
|
|
||
|
|
For example,
|
||
|
|
(accumulate [total 0
|
||
|
|
_ n (pairs {:apple 2 :orange 3})]
|
||
|
|
(+ total n))
|
||
|
|
returns 5"
|
||
|
|
(accumulate-impl false iter-tbl body ...))
|
||
|
|
|
||
|
|
(fn faccumulate* [iter-tbl body ...]
|
||
|
|
"Identical to accumulate, but after the accumulator the binding table is the
|
||
|
|
same as `for` instead of `each`. Like collect to fcollect, will iterate over a
|
||
|
|
numerical range like `for` rather than an iterator."
|
||
|
|
(accumulate-impl true iter-tbl body ...))
|
||
|
|
|
||
|
|
(fn double-eval-safe? [x type]
|
||
|
|
(or (= :number type) (= :string type) (= :boolean type)
|
||
|
|
(and (sym? x) (not (multi-sym? x)))))
|
||
|
|
|
||
|
|
(fn partial* [f ...]
|
||
|
|
"Return a function with all arguments partially applied to f."
|
||
|
|
(assert f "expected a function to partially apply")
|
||
|
|
(let [bindings []
|
||
|
|
args []]
|
||
|
|
(each [_ arg (ipairs [...])]
|
||
|
|
(if (double-eval-safe? arg (type arg))
|
||
|
|
(table.insert args arg)
|
||
|
|
(let [name (gensym)]
|
||
|
|
(table.insert bindings name)
|
||
|
|
(table.insert bindings arg)
|
||
|
|
(table.insert args name))))
|
||
|
|
(let [body (list f (unpack args))]
|
||
|
|
(table.insert body _VARARG)
|
||
|
|
;; only use the extra let if we need double-eval protection
|
||
|
|
(if (= 0 (length bindings))
|
||
|
|
`(fn [,_VARARG] ,body)
|
||
|
|
`(let ,bindings
|
||
|
|
(fn [,_VARARG] ,body))))))
|
||
|
|
|
||
|
|
(fn pick-args* [n f]
|
||
|
|
"Create a function of arity n that applies its arguments to f.
|
||
|
|
|
||
|
|
For example,
|
||
|
|
(pick-args 2 func)
|
||
|
|
expands to
|
||
|
|
(fn [_0_ _1_] (func _0_ _1_))"
|
||
|
|
(if (and _G.io _G.io.stderr)
|
||
|
|
(_G.io.stderr:write
|
||
|
|
"-- WARNING: pick-args is deprecated and will be removed in the future.\n"))
|
||
|
|
(assert (and (= (type n) :number) (= n (math.floor n)) (<= 0 n))
|
||
|
|
(.. "Expected n to be an integer literal >= 0, got " (tostring n)))
|
||
|
|
(let [bindings []]
|
||
|
|
(for [i 1 n]
|
||
|
|
(tset bindings i (gensym)))
|
||
|
|
`(fn ,bindings
|
||
|
|
(,f ,(unpack bindings)))))
|
||
|
|
|
||
|
|
(fn pick-values* [n ...]
|
||
|
|
"Evaluate to exactly n values.
|
||
|
|
|
||
|
|
For example,
|
||
|
|
(pick-values 2 ...)
|
||
|
|
expands to
|
||
|
|
(let [(_0_ _1_) ...]
|
||
|
|
(values _0_ _1_))"
|
||
|
|
(assert (and (= :number (type n)) (<= 0 n) (= n (math.floor n)))
|
||
|
|
(.. "Expected n to be an integer >= 0, got " (tostring n)))
|
||
|
|
(let [let-syms (list)
|
||
|
|
let-values (if (= 1 (select "#" ...)) ... `(values ,...))]
|
||
|
|
(for [i 1 n]
|
||
|
|
(table.insert let-syms (gensym)))
|
||
|
|
(if (= n 0) `(values)
|
||
|
|
`(let [,let-syms ,let-values]
|
||
|
|
(values ,(unpack let-syms))))))
|
||
|
|
|
||
|
|
(fn lambda* [...]
|
||
|
|
"Function literal with nil-checked arguments.
|
||
|
|
Like `fn`, but will throw an exception if a declared argument is passed in as
|
||
|
|
nil, unless that argument's name begins with a question mark."
|
||
|
|
(let [args [...]
|
||
|
|
args-len (length args)
|
||
|
|
has-internal-name? (sym? (. args 1))
|
||
|
|
arglist (if has-internal-name? (. args 2) (. args 1))
|
||
|
|
metadata-position (if has-internal-name? 3 2)
|
||
|
|
has-metadata? (and (< metadata-position args-len)
|
||
|
|
(or (= :string (type (. args metadata-position)))
|
||
|
|
(utils.kv-table? (. args metadata-position))))
|
||
|
|
arity-check-position (- 4 (if has-internal-name? 0 1)
|
||
|
|
(if has-metadata? 0 1))
|
||
|
|
empty-body? (< args-len arity-check-position)]
|
||
|
|
(fn check! [a]
|
||
|
|
(if (table? a)
|
||
|
|
(each [_ a (pairs a)] (check! a))
|
||
|
|
(let [as (tostring a)]
|
||
|
|
(and (not (as:match "^?")) (not= as "&") (not= as "_")
|
||
|
|
(not= as "...") (not= as "&as")))
|
||
|
|
(table.insert args arity-check-position
|
||
|
|
`(_G.assert (not= nil ,a)
|
||
|
|
,(: "Missing argument %s on %s:%s" :format
|
||
|
|
(tostring a)
|
||
|
|
(or a.filename :unknown)
|
||
|
|
(or a.line "?"))))))
|
||
|
|
|
||
|
|
(assert (= :table (type arglist)) "expected arg list")
|
||
|
|
(each [_ a (ipairs arglist)] (check! a))
|
||
|
|
(if empty-body?
|
||
|
|
(table.insert args (sym :nil)))
|
||
|
|
`(fn ,(unpack args))))
|
||
|
|
|
||
|
|
(fn macro* [name ...]
|
||
|
|
"Define a single macro."
|
||
|
|
(assert (sym? name) "expected symbol for macro name")
|
||
|
|
(local args [...])
|
||
|
|
`(macros {,(tostring name) (fn ,(unpack args))}))
|
||
|
|
|
||
|
|
(fn macrodebug* [form return?]
|
||
|
|
"Print the resulting form after performing macroexpansion.
|
||
|
|
With a second argument, returns expanded form as a string instead of printing."
|
||
|
|
(let [handle (if return? `do `print)]
|
||
|
|
`(,handle ,(view (macroexpand form _SCOPE)))))
|
||
|
|
|
||
|
|
(fn import-macros* [binding1 module-name1 ...]
|
||
|
|
"Bind a table of macros from each macro module according to a binding form.
|
||
|
|
Each binding form can be either a symbol or a k/v destructuring table.
|
||
|
|
Example:
|
||
|
|
(import-macros mymacros :my-macros ; bind to symbol
|
||
|
|
{:macro1 alias : macro2} :proj.macros) ; import by name"
|
||
|
|
(assert (and binding1 module-name1 (= 0 (% (select "#" ...) 2)))
|
||
|
|
"expected even number of binding/modulename pairs")
|
||
|
|
(for [i 1 (select "#" binding1 module-name1 ...) 2]
|
||
|
|
;; delegate the actual loading of the macros to the require-macros
|
||
|
|
;; special which already knows how to set up the compiler env and stuff.
|
||
|
|
;; this is weird because require-macros is deprecated but it works.
|
||
|
|
(let [(binding modname) (select i binding1 module-name1 ...)
|
||
|
|
scope (get-scope)
|
||
|
|
;; if the module-name is an expression (and not just a string) we
|
||
|
|
;; patch our expression to have the correct source filename so
|
||
|
|
;; require-macros can pass it down when resolving the module-name.
|
||
|
|
expr `(import-macros ,modname)
|
||
|
|
filename (if (list? modname) (. modname 1 :filename) :unknown)
|
||
|
|
_ (tset expr :filename filename)
|
||
|
|
macros* (_SPECIALS.require-macros expr scope {} binding)]
|
||
|
|
(if (sym? binding)
|
||
|
|
;; bind whole table of macros to table bound to symbol
|
||
|
|
(tset scope.macros (. binding 1) macros*)
|
||
|
|
;; 1-level table destructuring for importing individual macros
|
||
|
|
(table? binding)
|
||
|
|
(each [macro-name [import-key] (pairs binding)]
|
||
|
|
(assert (= :function (type (. macros* macro-name)))
|
||
|
|
(.. "macro " macro-name " not found in module "
|
||
|
|
(tostring modname)))
|
||
|
|
(tset scope.macros import-key (. macros* macro-name))))))
|
||
|
|
nil)
|
||
|
|
|
||
|
|
{:-> ->*
|
||
|
|
:->> ->>*
|
||
|
|
:-?> -?>*
|
||
|
|
:-?>> -?>>*
|
||
|
|
:?. ?dot
|
||
|
|
:doto doto*
|
||
|
|
:when when*
|
||
|
|
:with-open with-open*
|
||
|
|
:collect collect*
|
||
|
|
:icollect icollect*
|
||
|
|
:fcollect fcollect*
|
||
|
|
:accumulate accumulate*
|
||
|
|
:faccumulate faccumulate*
|
||
|
|
:partial partial*
|
||
|
|
:lambda lambda*
|
||
|
|
:λ lambda*
|
||
|
|
:pick-args pick-args*
|
||
|
|
:pick-values pick-values*
|
||
|
|
:macro macro*
|
||
|
|
:macrodebug macrodebug*
|
||
|
|
:import-macros import-macros*}
|
||
|
|
]===], {env = env, filename = "src/fennel/macros.fnl", moduleName = module_name, scope = compiler.scopes.compiler, useMetadata = true})
|
||
|
|
local _0 = nil
|
||
|
|
for k, v in pairs(built_ins) do
|
||
|
|
compiler.scopes.global.macros[k] = v
|
||
|
|
end
|
||
|
|
_0 = nil
|
||
|
|
local match_macros = eval([===[;;; Pattern matching
|
||
|
|
;; This is separated out so we can use the "core" macros during the
|
||
|
|
;; implementation of pattern matching.
|
||
|
|
|
||
|
|
(fn copy [t] (collect [k v (pairs t)] k v))
|
||
|
|
|
||
|
|
(fn with [opts k]
|
||
|
|
(doto (copy opts) (tset k true)))
|
||
|
|
|
||
|
|
(fn without [opts k]
|
||
|
|
(doto (copy opts) (tset k nil)))
|
||
|
|
|
||
|
|
(fn case-values [vals pattern unifications case-pattern opts]
|
||
|
|
(let [condition `(and)
|
||
|
|
bindings []]
|
||
|
|
(each [i pat (ipairs pattern)]
|
||
|
|
(let [(subcondition subbindings) (case-pattern [(. vals i)] pat
|
||
|
|
unifications (without opts :multival?))]
|
||
|
|
(table.insert condition subcondition)
|
||
|
|
(icollect [_ b (ipairs subbindings) &into bindings] b)))
|
||
|
|
(values condition bindings)))
|
||
|
|
|
||
|
|
(fn case-table [val pattern unifications case-pattern opts]
|
||
|
|
(let [condition `(and (= (_G.type ,val) :table))
|
||
|
|
bindings []]
|
||
|
|
(each [k pat (pairs pattern)]
|
||
|
|
(if (sym? pat :&)
|
||
|
|
(let [rest-pat (. pattern (+ k 1))
|
||
|
|
rest-val `(select ,k ((or table.unpack _G.unpack) ,val))
|
||
|
|
subcondition (case-table `(pick-values 1 ,rest-val)
|
||
|
|
rest-pat unifications case-pattern
|
||
|
|
(without opts :multival?))]
|
||
|
|
(if (not (sym? rest-pat))
|
||
|
|
(table.insert condition subcondition))
|
||
|
|
(assert (= nil (. pattern (+ k 2)))
|
||
|
|
"expected & rest argument before last parameter")
|
||
|
|
(table.insert bindings rest-pat)
|
||
|
|
(table.insert bindings [rest-val]))
|
||
|
|
(sym? k :&as)
|
||
|
|
(do
|
||
|
|
(table.insert bindings pat)
|
||
|
|
(table.insert bindings val))
|
||
|
|
(and (= :number (type k)) (sym? pat :&as))
|
||
|
|
(do
|
||
|
|
(assert (= nil (. pattern (+ k 2)))
|
||
|
|
"expected &as argument before last parameter")
|
||
|
|
(table.insert bindings (. pattern (+ k 1)))
|
||
|
|
(table.insert bindings val))
|
||
|
|
;; don't process the pattern right after &/&as; already got it
|
||
|
|
(or (not= :number (type k)) (and (not (sym? (. pattern (- k 1)) :&as))
|
||
|
|
(not (sym? (. pattern (- k 1)) :&))))
|
||
|
|
(let [subval `(. ,val ,k)
|
||
|
|
(subcondition subbindings) (case-pattern [subval] pat
|
||
|
|
unifications
|
||
|
|
(without opts :multival?))]
|
||
|
|
(table.insert condition subcondition)
|
||
|
|
(icollect [_ b (ipairs subbindings) &into bindings] b))))
|
||
|
|
(values condition bindings)))
|
||
|
|
|
||
|
|
(fn case-guard [vals condition guards unifications case-pattern opts]
|
||
|
|
(if (= 0 (length guards))
|
||
|
|
(case-pattern vals condition unifications opts)
|
||
|
|
(let [(pcondition bindings) (case-pattern vals condition unifications opts)
|
||
|
|
condition `(and ,(unpack guards))]
|
||
|
|
(values `(and ,pcondition
|
||
|
|
(let ,bindings
|
||
|
|
,condition)) bindings))))
|
||
|
|
|
||
|
|
(fn symbols-in-pattern [pattern]
|
||
|
|
"gives the set of symbols inside a pattern"
|
||
|
|
(if (list? pattern)
|
||
|
|
(if (or (sym? (. pattern 1) :where)
|
||
|
|
(sym? (. pattern 1) :=))
|
||
|
|
(symbols-in-pattern (. pattern 2))
|
||
|
|
(sym? (. pattern 2) :?)
|
||
|
|
(symbols-in-pattern (. pattern 1))
|
||
|
|
(let [result {}]
|
||
|
|
(each [_ child-pattern (ipairs pattern)]
|
||
|
|
(collect [name symbol (pairs (symbols-in-pattern child-pattern)) &into result]
|
||
|
|
name symbol))
|
||
|
|
result))
|
||
|
|
(sym? pattern)
|
||
|
|
(if (and (not (sym? pattern :or))
|
||
|
|
(not (sym? pattern :nil)))
|
||
|
|
{(tostring pattern) pattern}
|
||
|
|
{})
|
||
|
|
(= (type pattern) :table)
|
||
|
|
(let [result {}]
|
||
|
|
(each [key-pattern value-pattern (pairs pattern)]
|
||
|
|
(collect [name symbol (pairs (symbols-in-pattern key-pattern)) &into result]
|
||
|
|
name symbol)
|
||
|
|
(collect [name symbol (pairs (symbols-in-pattern value-pattern)) &into result]
|
||
|
|
name symbol))
|
||
|
|
result)
|
||
|
|
{}))
|
||
|
|
|
||
|
|
(fn symbols-in-every-pattern [pattern-list infer-unification?]
|
||
|
|
"gives a list of symbols that are present in every pattern in the list"
|
||
|
|
(let [?symbols (accumulate [?symbols nil
|
||
|
|
_ pattern (ipairs pattern-list)]
|
||
|
|
(let [in-pattern (symbols-in-pattern pattern)]
|
||
|
|
(if ?symbols
|
||
|
|
(do
|
||
|
|
(each [name symbol (pairs ?symbols)]
|
||
|
|
(when (not (. in-pattern name))
|
||
|
|
(tset ?symbols name nil)))
|
||
|
|
?symbols)
|
||
|
|
in-pattern)))]
|
||
|
|
(icollect [_ symbol (pairs (or ?symbols {}))]
|
||
|
|
(if (not (and infer-unification?
|
||
|
|
(in-scope? symbol)))
|
||
|
|
symbol))))
|
||
|
|
|
||
|
|
(fn case-or [vals pattern guards unifications case-pattern opts]
|
||
|
|
(let [pattern [(unpack pattern 2)]
|
||
|
|
bindings (symbols-in-every-pattern pattern opts.infer-unification?)] ;; TODO opts.infer-unification instead of opts.unification?
|
||
|
|
(if (= 0 (length bindings))
|
||
|
|
;; no bindings special case generates simple code
|
||
|
|
(let [condition
|
||
|
|
(icollect [i subpattern (ipairs pattern) &into `(or)]
|
||
|
|
(let [(subcondition subbindings) (case-pattern vals subpattern unifications opts)]
|
||
|
|
subcondition))]
|
||
|
|
(values
|
||
|
|
(if (= 0 (length guards))
|
||
|
|
condition
|
||
|
|
`(and ,condition ,(unpack guards)))
|
||
|
|
[]))
|
||
|
|
;; case with bindings is handled specially, and returns three values instead of two
|
||
|
|
(let [matched? (gensym :matched?)
|
||
|
|
bindings-mangled (icollect [_ binding (ipairs bindings)]
|
||
|
|
(gensym (tostring binding)))
|
||
|
|
pre-bindings `(if)]
|
||
|
|
(each [i subpattern (ipairs pattern)]
|
||
|
|
(let [(subcondition subbindings) (case-guard vals subpattern guards {} case-pattern opts)]
|
||
|
|
(table.insert pre-bindings subcondition)
|
||
|
|
(table.insert pre-bindings `(let ,subbindings
|
||
|
|
(values true ,(unpack bindings))))))
|
||
|
|
(values matched?
|
||
|
|
[`(,(unpack bindings)) `(values ,(unpack bindings-mangled))]
|
||
|
|
[`(,matched? ,(unpack bindings-mangled)) pre-bindings])))))
|
||
|
|
|
||
|
|
(fn case-pattern [vals pattern unifications opts top-level?]
|
||
|
|
"Take the AST of values and a single pattern and returns a condition
|
||
|
|
to determine if it matches as well as a list of bindings to
|
||
|
|
introduce for the duration of the body if it does match."
|
||
|
|
|
||
|
|
;; This function returns the following values (multival):
|
||
|
|
;; a "condition", which is an expression that determines whether the
|
||
|
|
;; pattern should match,
|
||
|
|
;; a "bindings", which bind all of the symbols used in a pattern
|
||
|
|
;; an optional "pre-bindings", which is a list of bindings that happen
|
||
|
|
;; before the condition and bindings are evaluated. These should only
|
||
|
|
;; come from a (case-or). In this case there should be no recursion:
|
||
|
|
;; the call stack should be case-condition > case-pattern > case-or
|
||
|
|
;;
|
||
|
|
;; Here are the expected flags in the opts table:
|
||
|
|
;; :infer-unification? boolean - if the pattern should guess when to unify (ie, match -> true, case -> false)
|
||
|
|
;; :multival? boolean - if the pattern can contain multivals (in order to disallow patterns like [(1 2)])
|
||
|
|
;; :in-where? boolean - if the pattern is surrounded by (where) (where opts into more pattern features)
|
||
|
|
;; :legacy-guard-allowed? boolean - if the pattern should allow `(a ? b) patterns
|
||
|
|
|
||
|
|
;; we have to assume we're matching against multiple values here until we
|
||
|
|
;; know we're either in a multi-valued clause (in which case we know the #
|
||
|
|
;; of vals) or we're not, in which case we only care about the first one.
|
||
|
|
(let [[val] vals]
|
||
|
|
(if (and (sym? pattern)
|
||
|
|
(or (sym? pattern :nil)
|
||
|
|
(and opts.infer-unification?
|
||
|
|
(in-scope? pattern)
|
||
|
|
(not (sym? pattern :_)))
|
||
|
|
(and opts.infer-unification?
|
||
|
|
(multi-sym? pattern)
|
||
|
|
(in-scope? (. (multi-sym? pattern) 1)))))
|
||
|
|
(values `(= ,val ,pattern) [])
|
||
|
|
;; unify a local we've seen already
|
||
|
|
(and (sym? pattern) (. unifications (tostring pattern)))
|
||
|
|
(values `(= ,(. unifications (tostring pattern)) ,val) [])
|
||
|
|
;; bind a fresh local
|
||
|
|
(sym? pattern)
|
||
|
|
(let [wildcard? (: (tostring pattern) :find "^_")]
|
||
|
|
(if (not wildcard?) (tset unifications (tostring pattern) val))
|
||
|
|
(values (if (or wildcard? (string.find (tostring pattern) "^?")) true
|
||
|
|
`(not= ,(sym :nil) ,val)) [pattern val]))
|
||
|
|
;; opt-in unify with (=)
|
||
|
|
(and (list? pattern)
|
||
|
|
(sym? (. pattern 1) :=)
|
||
|
|
(sym? (. pattern 2)))
|
||
|
|
(let [bind (. pattern 2)]
|
||
|
|
(assert-compile (= 2 (length pattern)) "(=) should take only one argument" pattern)
|
||
|
|
(assert-compile (not opts.infer-unification?) "(=) cannot be used inside of match" pattern)
|
||
|
|
(assert-compile opts.in-where? "(=) must be used in (where) patterns" pattern)
|
||
|
|
(assert-compile (and (sym? bind) (not (sym? bind :nil)) "= has to bind to a symbol" bind))
|
||
|
|
(values `(= ,val ,bind) []))
|
||
|
|
;; where-or clause
|
||
|
|
(and (list? pattern) (sym? (. pattern 1) :where) (list? (. pattern 2)) (sym? (. pattern 2 1) :or))
|
||
|
|
(do
|
||
|
|
(assert-compile top-level? "can't nest (where) pattern" pattern)
|
||
|
|
(case-or vals (. pattern 2) [(unpack pattern 3)] unifications case-pattern (with opts :in-where?)))
|
||
|
|
;; where clause
|
||
|
|
(and (list? pattern) (sym? (. pattern 1) :where))
|
||
|
|
(do
|
||
|
|
(assert-compile top-level? "can't nest (where) pattern" pattern)
|
||
|
|
(case-guard vals (. pattern 2) [(unpack pattern 3)] unifications case-pattern (with opts :in-where?)))
|
||
|
|
;; or clause (not allowed on its own)
|
||
|
|
(and (list? pattern) (sym? (. pattern 1) :or))
|
||
|
|
(do
|
||
|
|
(assert-compile top-level? "can't nest (or) pattern" pattern)
|
||
|
|
;; This assertion can be removed to make patterns more permissive
|
||
|
|
(assert-compile false "(or) must be used in (where) patterns" pattern)
|
||
|
|
(case-or vals pattern [] unifications case-pattern opts))
|
||
|
|
;; guard clause
|
||
|
|
(and (list? pattern) (sym? (. pattern 2) :?))
|
||
|
|
(do
|
||
|
|
(assert-compile opts.legacy-guard-allowed? "legacy guard clause not supported in case" pattern)
|
||
|
|
(case-guard vals (. pattern 1) [(unpack pattern 3)] unifications case-pattern opts))
|
||
|
|
;; multi-valued patterns (represented as lists)
|
||
|
|
(list? pattern)
|
||
|
|
(do
|
||
|
|
(assert-compile opts.multival? "can't nest multi-value destructuring" pattern)
|
||
|
|
(case-values vals pattern unifications case-pattern opts))
|
||
|
|
;; table patterns
|
||
|
|
(= (type pattern) :table)
|
||
|
|
(case-table val pattern unifications case-pattern opts)
|
||
|
|
;; literal value
|
||
|
|
(values `(= ,val ,pattern) []))))
|
||
|
|
|
||
|
|
(fn add-pre-bindings [out pre-bindings]
|
||
|
|
"Decide when to switch from the current `if` AST to a new one"
|
||
|
|
(if pre-bindings
|
||
|
|
;; `out` no longer needs to grow.
|
||
|
|
;; Instead, a new tail `if` AST is introduced, which is where the rest of
|
||
|
|
;; the clauses will get appended. This way, all future clauses have the
|
||
|
|
;; pre-bindings in scope.
|
||
|
|
(let [tail `(if)]
|
||
|
|
(table.insert out true)
|
||
|
|
(table.insert out `(let ,pre-bindings ,tail))
|
||
|
|
tail)
|
||
|
|
;; otherwise, keep growing the current `if` AST.
|
||
|
|
out))
|
||
|
|
|
||
|
|
(fn case-condition [vals clauses match?]
|
||
|
|
"Construct the actual `if` AST for the given match values and clauses."
|
||
|
|
;; root is the original `if` AST.
|
||
|
|
;; out is the `if` AST that is currently being grown.
|
||
|
|
(let [root `(if)]
|
||
|
|
(faccumulate [out root
|
||
|
|
i 1 (length clauses) 2]
|
||
|
|
(let [pattern (. clauses i)
|
||
|
|
body (. clauses (+ i 1))
|
||
|
|
(condition bindings pre-bindings) (case-pattern vals pattern {}
|
||
|
|
{:multival? true
|
||
|
|
:infer-unification? match?
|
||
|
|
:legacy-guard-allowed? match?}
|
||
|
|
true)
|
||
|
|
out (add-pre-bindings out pre-bindings)]
|
||
|
|
;; grow the `if` AST by one extra condition
|
||
|
|
(table.insert out condition)
|
||
|
|
(table.insert out `(let ,bindings
|
||
|
|
,body))
|
||
|
|
out))
|
||
|
|
root))
|
||
|
|
|
||
|
|
(fn count-case-multival [pattern]
|
||
|
|
"Identify the amount of multival values that a pattern requires."
|
||
|
|
(if (and (list? pattern) (sym? (. pattern 2) :?))
|
||
|
|
(count-case-multival (. pattern 1))
|
||
|
|
(and (list? pattern) (sym? (. pattern 1) :where))
|
||
|
|
(count-case-multival (. pattern 2))
|
||
|
|
(and (list? pattern) (sym? (. pattern 1) :or))
|
||
|
|
(accumulate [longest 0
|
||
|
|
_ child-pattern (ipairs pattern)]
|
||
|
|
(math.max longest (count-case-multival child-pattern)))
|
||
|
|
(list? pattern)
|
||
|
|
(length pattern)
|
||
|
|
1))
|
||
|
|
|
||
|
|
(fn case-count-syms [clauses]
|
||
|
|
"Find the length of the largest multi-valued clause"
|
||
|
|
(let [patterns (fcollect [i 1 (length clauses) 2]
|
||
|
|
(. clauses i))]
|
||
|
|
(accumulate [longest 0
|
||
|
|
_ pattern (ipairs patterns)]
|
||
|
|
(math.max longest (count-case-multival pattern)))))
|
||
|
|
|
||
|
|
(fn case-impl [match? val ...]
|
||
|
|
"The shared implementation of case and match."
|
||
|
|
(assert (not= val nil) "missing subject")
|
||
|
|
(assert (= 0 (math.fmod (select :# ...) 2))
|
||
|
|
"expected even number of pattern/body pairs")
|
||
|
|
(assert (not= 0 (select :# ...))
|
||
|
|
"expected at least one pattern/body pair")
|
||
|
|
(let [clauses [...]
|
||
|
|
vals-count (case-count-syms clauses)
|
||
|
|
skips-multiple-eval-protection? (and (= vals-count 1) (sym? val) (not (multi-sym? val)))]
|
||
|
|
(if skips-multiple-eval-protection?
|
||
|
|
(case-condition (list val) clauses match?)
|
||
|
|
;; protect against multiple evaluation of the value, bind against as
|
||
|
|
;; many values as we ever match against in the clauses.
|
||
|
|
(let [vals (fcollect [i 1 vals-count &into (list)] (gensym))]
|
||
|
|
(list `let [vals val] (case-condition vals clauses match?))))))
|
||
|
|
|
||
|
|
(fn case* [val ...]
|
||
|
|
"Perform pattern matching on val. See reference for details.
|
||
|
|
|
||
|
|
Syntax:
|
||
|
|
|
||
|
|
(case data-expression
|
||
|
|
pattern body
|
||
|
|
(where pattern guards*) body
|
||
|
|
(or pattern patterns*) body
|
||
|
|
(where (or pattern patterns*) guards*) body
|
||
|
|
;; legacy:
|
||
|
|
(pattern ? guards*) body)"
|
||
|
|
(case-impl false val ...))
|
||
|
|
|
||
|
|
(fn match* [val ...]
|
||
|
|
"Perform pattern matching on val, automatically unifying on variables in
|
||
|
|
local scope. See reference for details.
|
||
|
|
|
||
|
|
Syntax:
|
||
|
|
|
||
|
|
(match data-expression
|
||
|
|
pattern body
|
||
|
|
(where pattern guards*) body
|
||
|
|
(or pattern patterns*) body
|
||
|
|
(where (or pattern patterns*) guards*) body
|
||
|
|
;; legacy:
|
||
|
|
(pattern ? guards*) body)"
|
||
|
|
(case-impl true val ...))
|
||
|
|
|
||
|
|
(fn case-try-step [how expr else pattern body ...]
|
||
|
|
(if (= nil pattern body)
|
||
|
|
expr
|
||
|
|
;; unlike regular match, we can't know how many values the value
|
||
|
|
;; might evaluate to, so we have to capture them all in ... via IIFE
|
||
|
|
;; to avoid double-evaluation.
|
||
|
|
`((fn [...]
|
||
|
|
(,how ...
|
||
|
|
,pattern ,(case-try-step how body else ...)
|
||
|
|
,(unpack else)))
|
||
|
|
,expr)))
|
||
|
|
|
||
|
|
(fn case-try-impl [how expr pattern body ...]
|
||
|
|
(let [clauses [pattern body ...]
|
||
|
|
last (. clauses (length clauses))
|
||
|
|
catch (if (sym? (and (= :table (type last)) (. last 1)) :catch)
|
||
|
|
(let [[_ & e] (table.remove clauses)] e) ; remove `catch sym
|
||
|
|
[`_# `...])]
|
||
|
|
(assert (= 0 (math.fmod (length clauses) 2))
|
||
|
|
"expected every pattern to have a body")
|
||
|
|
(assert (= 0 (math.fmod (length catch) 2))
|
||
|
|
"expected every catch pattern to have a body")
|
||
|
|
(case-try-step how expr catch (unpack clauses))))
|
||
|
|
|
||
|
|
(fn case-try* [expr pattern body ...]
|
||
|
|
"Perform chained pattern matching for a sequence of steps which might fail.
|
||
|
|
|
||
|
|
The values from the initial expression are matched against the first pattern.
|
||
|
|
If they match, the first body is evaluated and its values are matched against
|
||
|
|
the second pattern, etc.
|
||
|
|
|
||
|
|
If there is a (catch pat1 body1 pat2 body2 ...) form at the end, any mismatch
|
||
|
|
from the steps will be tried against these patterns in sequence as a fallback
|
||
|
|
just like a normal match. If there is no catch, the mismatched values will be
|
||
|
|
returned as the value of the entire expression."
|
||
|
|
(case-try-impl `case expr pattern body ...))
|
||
|
|
|
||
|
|
(fn match-try* [expr pattern body ...]
|
||
|
|
"Perform chained pattern matching for a sequence of steps which might fail.
|
||
|
|
|
||
|
|
The values from the initial expression are matched against the first pattern.
|
||
|
|
If they match, the first body is evaluated and its values are matched against
|
||
|
|
the second pattern, etc.
|
||
|
|
|
||
|
|
If there is a (catch pat1 body1 pat2 body2 ...) form at the end, any mismatch
|
||
|
|
from the steps will be tried against these patterns in sequence as a fallback
|
||
|
|
just like a normal match. If there is no catch, the mismatched values will be
|
||
|
|
returned as the value of the entire expression."
|
||
|
|
(case-try-impl `match expr pattern body ...))
|
||
|
|
|
||
|
|
{:case case*
|
||
|
|
:case-try case-try*
|
||
|
|
:match match*
|
||
|
|
:match-try match-try*}
|
||
|
|
]===], {allowedGlobals = false, env = env, filename = "src/fennel/match.fnl", moduleName = module_name, scope = compiler.scopes.compiler, useMetadata = true})
|
||
|
|
for k, v in pairs(match_macros) do
|
||
|
|
compiler.scopes.global.macros[k] = v
|
||
|
|
end
|
||
|
|
package.preload[module_name] = nil
|
||
|
|
end
|
||
|
|
return mod
|