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1-0-0.lua
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1-0-0.lua
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package.preload["fennel.repl"] = package.preload["fennel.repl"] or function(...)
local utils = require("fennel.utils")
local parser = require("fennel.parser")
local compiler = require("fennel.compiler")
local specials = require("fennel.specials")
local view = require("fennel.view")
local unpack = (table.unpack or _G.unpack)
local function default_read_chunk(parser_state)
local function _519_()
if (0 < parser_state["stack-size"]) then
return ".."
else
return ">> "
end
end
io.write(_519_())
io.flush()
local input = io.read()
return (input and (input .. "\n"))
end
local function default_on_values(xs)
io.write(table.concat(xs, "\9"))
return io.write("\n")
end
local function default_on_error(errtype, err, lua_source)
local function _521_()
local _520_ = errtype
if (_520_ == "Lua Compile") then
return ("Bad code generated - likely a bug with the compiler:\n" .. "--- Generated Lua Start ---\n" .. lua_source .. "--- Generated Lua End ---\n")
elseif (_520_ == "Runtime") then
return (compiler.traceback(tostring(err), 4) .. "\n")
elseif true then
local _ = _520_
return ("%s error: %s\n"):format(errtype, tostring(err))
else
return nil
end
end
return io.write(_521_())
end
local save_source = table.concat({"local ___i___ = 1", "while true do", " local name, value = debug.getlocal(1, ___i___)", " if(name and name ~= \"___i___\") then", " ___replLocals___[name] = value", " ___i___ = ___i___ + 1", " else break end end"}, "\n")
local function splice_save_locals(env, lua_source)
local spliced_source = {}
local bind = "local %s = ___replLocals___['%s']"
for line in lua_source:gmatch("([^\n]+)\n?") do
table.insert(spliced_source, line)
end
for name in pairs(env.___replLocals___) do
table.insert(spliced_source, 1, bind:format(name, name))
end
if ((1 < #spliced_source) and (spliced_source[#spliced_source]):match("^ *return .*$")) then
table.insert(spliced_source, #spliced_source, save_source)
else
end
return table.concat(spliced_source, "\n")
end
local function completer(env, scope, text)
local matches = {}
local input_fragment = text:gsub(".*[%s)(]+", "")
local stop_looking_3f = false
local function add_partials(input, tbl, prefix, method_3f)
for k in utils.allpairs(tbl) do
local k0
if ((tbl == env) or (tbl == env.___replLocals___)) then
k0 = scope.unmanglings[k]
else
k0 = k
end
if ((#matches < 2000) and (type(k0) == "string") and (input == k0:sub(0, #input)) and (not method_3f or ("function" == type(tbl[k0])))) then
local function _525_()
if method_3f then
return (prefix .. ":" .. k0)
else
return (prefix .. k0)
end
end
table.insert(matches, _525_())
else
end
end
return nil
end
local function descend(input, tbl, prefix, add_matches, method_3f)
local splitter
if method_3f then
splitter = "^([^:]+):(.*)"
else
splitter = "^([^.]+)%.(.*)"
end
local head, tail = input:match(splitter)
local raw_head = (scope.manglings[head] or head)
if (type(tbl[raw_head]) == "table") then
stop_looking_3f = true
if method_3f then
return add_partials(tail, tbl[raw_head], (prefix .. head), true)
else
return add_matches(tail, tbl[raw_head], (prefix .. head))
end
else
return nil
end
end
local function add_matches(input, tbl, prefix)
local prefix0
if prefix then
prefix0 = (prefix .. ".")
else
prefix0 = ""
end
if (not input:find("%.") and input:find(":")) then
return descend(input, tbl, prefix0, add_matches, true)
elseif not input:find("%.") then
return add_partials(input, tbl, prefix0)
else
return descend(input, tbl, prefix0, add_matches, false)
end
end
for _, source in ipairs({scope.specials, scope.macros, (env.___replLocals___ or {}), env, env._G}) do
if stop_looking_3f then break end
add_matches(input_fragment, source)
end
return matches
end
local commands = {}
local function command_3f(input)
return input:match("^%s*,")
end
local function command_docs()
local _532_
do
local tbl_14_auto = {}
local i_15_auto = #tbl_14_auto
for name, f in pairs(commands) do
local val_16_auto = (" ,%s - %s"):format(name, ((compiler.metadata):get(f, "fnl/docstring") or "undocumented"))
if (nil ~= val_16_auto) then
i_15_auto = (i_15_auto + 1)
do end (tbl_14_auto)[i_15_auto] = val_16_auto
else
end
end
_532_ = tbl_14_auto
end
return table.concat(_532_, "\n")
end
commands.help = function(_, _0, on_values)
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")})
end
do end (compiler.metadata):set(commands.help, "fnl/docstring", "Show this message.")
local function reload(module_name, env, on_values, on_error)
local _534_, _535_ = pcall(specials["load-code"]("return require(...)", env), module_name)
if ((_534_ == true) and (nil ~= _535_)) then
local old = _535_
local _
package.loaded[module_name] = nil
_ = nil
local ok, new = pcall(require, module_name)
local new0
if not ok then
on_values({new})
new0 = old
else
new0 = new
end
if ((type(old) == "table") and (type(new0) == "table")) then
for k, v in pairs(new0) do
old[k] = v
end
for k in pairs(old) do
if (nil == (new0)[k]) then
old[k] = nil
else
end
end
package.loaded[module_name] = old
else
end
return on_values({"ok"})
elseif ((_534_ == false) and (nil ~= _535_)) then
local msg = _535_
local function _540_()
local _539_ = msg:gsub("\n.*", "")
return _539_
end
return on_error("Runtime", _540_())
else
return nil
end
end
local function run_command(read, on_error, f)
local _542_, _543_, _544_ = pcall(read)
if ((_542_ == true) and (_543_ == true) and (nil ~= _544_)) then
local val = _544_
return f(val)
elseif (_542_ == false) then
return on_error("Parse", "Couldn't parse input.")
else
return nil
end
end
commands.reload = function(env, read, on_values, on_error)
local function _546_(_241)
return reload(tostring(_241), env, on_values, on_error)
end
return run_command(read, on_error, _546_)
end
do end (compiler.metadata):set(commands.reload, "fnl/docstring", "Reload the specified module.")
commands.reset = function(env, _, on_values)
env.___replLocals___ = {}
return on_values({"ok"})
end
do end (compiler.metadata):set(commands.reset, "fnl/docstring", "Erase all repl-local scope.")
commands.complete = function(env, read, on_values, on_error, scope, chars)
local function _547_()
return on_values(completer(env, scope, string.char(unpack(chars)):gsub(",complete +", ""):sub(1, -2)))
end
return run_command(read, on_error, _547_)
end
do end (compiler.metadata):set(commands.complete, "fnl/docstring", "Print all possible completions for a given input symbol.")
local function apropos_2a(pattern, tbl, prefix, seen, names)
for name, subtbl in pairs(tbl) do
if (("string" == type(name)) and (package ~= subtbl)) then
local _548_ = type(subtbl)
if (_548_ == "function") then
if ((prefix .. name)):match(pattern) then
table.insert(names, (prefix .. name))
else
end
elseif (_548_ == "table") then
if not seen[subtbl] then
local _551_
do
local _550_ = seen
_550_[subtbl] = true
_551_ = _550_
end
apropos_2a(pattern, subtbl, (prefix .. name:gsub("%.", "/") .. "."), _551_, names)
else
end
else
end
else
end
end
return names
end
local function apropos(pattern)
local names = apropos_2a(pattern, package.loaded, "", {}, {})
local tbl_14_auto = {}
local i_15_auto = #tbl_14_auto
for _, name in ipairs(names) do
local val_16_auto = name:gsub("^_G%.", "")
if (nil ~= val_16_auto) then
i_15_auto = (i_15_auto + 1)
do end (tbl_14_auto)[i_15_auto] = val_16_auto
else
end
end
return tbl_14_auto
end
commands.apropos = function(_env, read, on_values, on_error, _scope)
local function _556_(_241)
return on_values(apropos(tostring(_241)))
end
return run_command(read, on_error, _556_)
end
do end (compiler.metadata):set(commands.apropos, "fnl/docstring", "Print all functions matching a pattern in all loaded modules.")
local function apropos_follow_path(path)
local paths
do
local tbl_14_auto = {}
local i_15_auto = #tbl_14_auto
for p in path:gmatch("[^%.]+") do
local val_16_auto = p
if (nil ~= val_16_auto) then
i_15_auto = (i_15_auto + 1)
do end (tbl_14_auto)[i_15_auto] = val_16_auto
else
end
end
paths = tbl_14_auto
end
local tgt = package.loaded
for _, path0 in ipairs(paths) do
if (nil == tgt) then break end
local _559_
do
local _558_ = path0:gsub("%/", ".")
_559_ = _558_
end
tgt = tgt[_559_]
end
return tgt
end
local function apropos_doc(pattern)
local names = {}
for _, path in ipairs(apropos(".*")) do
local tgt = apropos_follow_path(path)
if ("function" == type(tgt)) then
local _560_ = (compiler.metadata):get(tgt, "fnl/docstring")
if (nil ~= _560_) then
local docstr = _560_
if docstr:match(pattern) then
table.insert(names, path)
else
end
else
end
else
end
end
return names
end
commands["apropos-doc"] = function(_env, read, on_values, on_error, _scope)
local function _564_(_241)
return on_values(apropos_doc(tostring(_241)))
end
return run_command(read, on_error, _564_)
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()
else
end
end
return nil
end
commands["apropos-show-docs"] = function(_env, read, on_values, on_error)
local function _566_(_241)
return apropos_show_docs(on_values, tostring(_241))
end
return run_command(read, on_error, _566_)
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, _567_, scope)
local _arg_568_ = _567_
local ___replLocals___ = _arg_568_["___replLocals___"]
local env = _arg_568_
local e
local function _569_(_241, _242)
return (___replLocals___[_242] or env[_242])
end
e = setmetatable({}, {__index = _569_})
local code = compiler["compile-string"](tostring(identifier), {scope = scope})
return specials["load-code"](code, e)()
end
commands.find = function(env, read, on_values, on_error, scope)
local function _570_(_241)
local _571_
do
local _572_ = utils["sym?"](_241)
if (nil ~= _572_) then
local _573_ = resolve(_572_, env, scope)
if (nil ~= _573_) then
_571_ = debug.getinfo(_573_)
else
_571_ = _573_
end
else
_571_ = _572_
end
end
if ((_G.type(_571_) == "table") and (nil ~= (_571_).short_src) and (nil ~= (_571_).linedefined) and ((_571_).what == "Lua") and (nil ~= (_571_).source)) then
local src = (_571_).short_src
local line = (_571_).linedefined
local source = (_571_).source
local fnlsrc
do
local t_576_ = compiler.sourcemap
if (nil ~= t_576_) then
t_576_ = (t_576_)[source]
else
end
if (nil ~= t_576_) then
t_576_ = (t_576_)[line]
else
end
if (nil ~= t_576_) then
t_576_ = (t_576_)[2]
else
end
fnlsrc = t_576_
end
return on_values({string.format("%s:%s", src, (fnlsrc or line))})
elseif (_571_ == nil) then
return on_error("Repl", "Unknown value")
elseif true then
local _ = _571_
return on_error("Repl", "No source info")
else
return nil
end
end
return run_command(read, on_error, _570_)
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 _581_(_241)
local name = tostring(_241)
local target = (scope.specials[name] or scope.macros[name] or resolve(name, env, scope))
return on_values({specials.doc(target, name)})
end
return run_command(read, on_error, _581_)
end
do end (compiler.metadata):set(commands.doc, "fnl/docstring", "Print the docstring and arglist for a function, macro, or special form.")
local function load_plugin_commands(plugins)
for _, plugin in ipairs((plugins or {})) do
for name, f in pairs(plugin) do
local _582_ = name:match("^repl%-command%-(.*)")
if (nil ~= _582_) then
local cmd_name = _582_
commands[cmd_name] = (commands[cmd_name] or f)
else
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 _584_ = commands[command_name]
if (nil ~= _584_) then
local command = _584_
command(env, read, on_values, on_error, scope, chars)
elseif true then
local _ = _584_
if ("exit" ~= command_name) then
on_values({"Unknown command", command_name})
else
end
else
end
end
if ("exit" ~= command_name) then
return loop()
else
return nil
end
end
local function repl(options)
local old_root_options = utils.root.options
local env = specials["wrap-env"]((options.env or (rawget(_G, "_ENV") or _G)))
local save_locals_3f = ((options.saveLocals ~= false) and env.debug and env.debug.getlocal)
local opts = utils.copy(options)
local read_chunk = (opts.readChunk or default_read_chunk)
local on_values = (opts.onValues or default_on_values)
local on_error = (opts.onError or default_on_error)
local pp = (opts.pp or view)
local byte_stream, clear_stream = parser.granulate(read_chunk)
local chars = {}
local read, reset = nil, nil
local function _588_(parser_state)
local c = byte_stream(parser_state)
table.insert(chars, c)
return c
end
read, reset = parser.parser(_588_)
opts.env, opts.scope = env, compiler["make-scope"]()
opts.useMetadata = (options.useMetadata ~= false)
if (opts.allowedGlobals == nil) then
opts.allowedGlobals = specials["current-global-names"](env)
else
end
if opts.registerCompleter then
local function _592_()
local _590_ = env
local _591_ = opts.scope
local function _593_(...)
return completer(_590_, _591_, ...)
end
return _593_
end
opts.registerCompleter(_592_())
else
end
load_plugin_commands(opts.plugins)
if save_locals_3f then
local function newindex(t, k, v)
if opts.scope.unmanglings[k] then
return rawset(t, k, v)
else
return nil
end
end
env.___replLocals___ = setmetatable({}, {__newindex = newindex})
else
end
local function print_values(...)
local vals = {...}
local out = {}
env._, env.__ = vals[1], vals
for i = 1, select("#", ...) do
table.insert(out, pp(vals[i]))
end
return on_values(out)
end
local function loop()
for k in pairs(chars) do
chars[k] = nil
end
reset()
local ok, parse_ok_3f, x = pcall(read)
local src_string = string.char(unpack(chars))
if not ok then
on_error("Parse", parse_ok_3f)
clear_stream()
return loop()
elseif command_3f(src_string) then
return run_command_loop(src_string, read, loop, env, on_values, on_error, opts.scope, chars)
else
if parse_ok_3f then
do
local _597_, _598_ = nil, nil
local function _600_()
local _599_ = opts
_599_["source"] = src_string
return _599_
end
_597_, _598_ = pcall(compiler.compile, x, _600_())
if ((_597_ == false) and (nil ~= _598_)) then
local msg = _598_
clear_stream()
on_error("Compile", msg)
elseif ((_597_ == true) and (nil ~= _598_)) then
local src = _598_
local src0
if save_locals_3f then
src0 = splice_save_locals(env, src, opts.scope)
else
src0 = src
end
local _602_, _603_ = pcall(specials["load-code"], src0, env)
if ((_602_ == false) and (nil ~= _603_)) then
local msg = _603_
clear_stream()
on_error("Lua Compile", msg, src0)
elseif (true and (nil ~= _603_)) then
local _ = _602_
local chunk = _603_
local function _604_()
return print_values(chunk())
end
local function _605_()
local function _606_(...)
return on_error("Runtime", ...)
end
return _606_
end
xpcall(_604_, _605_())
else
end
else
end
end
utils.root.options = old_root_options
return loop()
else
return nil
end
end
end
return loop()
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 _345_(_, key)
if (type(key) == "string") then
return env[compiler["global-unmangling"](key)]
else
return env[key]
end
end
local function _347_(_, key, value)
if (type(key) == "string") then
env[compiler["global-unmangling"](key)] = value
return nil
else
env[key] = value
return nil
end
end
local function _349_()
local function putenv(k, v)
local _350_
if (type(k) == "string") then
_350_ = compiler["global-unmangling"](k)
else
_350_ = k
end
return _350_, v
end
return next, utils.kvmap(env, putenv), nil
end
return setmetatable({}, {__index = _345_, __newindex = _347_, __pairs = _349_})
end
local function current_global_names(_3fenv)
local mt
do
local _352_ = getmetatable(_3fenv)
if ((_G.type(_352_) == "table") and (nil ~= (_352_).__pairs)) then
local mtpairs = (_352_).__pairs
local tbl_11_auto = {}
for k, v in mtpairs(_3fenv) do
local _353_, _354_ = k, v
if ((nil ~= _353_) and (nil ~= _354_)) then
local k_12_auto = _353_
local v_13_auto = _354_
tbl_11_auto[k_12_auto] = v_13_auto
else
end
end
mt = tbl_11_auto
elseif (_352_ == 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)
if (rawget(_G, "setfenv") and rawget(_G, "loadstring")) then
local f = assert(_G.loadstring(code, _3ffilename))
local _357_ = f
setfenv(_357_, env)
return _357_
else
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 _359_
if (#arglist > 0) then
_359_ = " "
else
_359_ = ""
end
return string.format("(%s%s%s)\n %s", name, _359_, 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/docstring"] = docstring, ["fnl/body-form?"] = body_form_3f}
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])
else
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))
do end (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
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
else
end
end
return exprs
end
doc_special("values", {"..."}, "Return multiple values from a function. Must be in tail position.")
local function deep_tostring(x, key_3f)
if utils["sequence?"](x) then
local _368_
do
local tbl_14_auto = {}
local i_15_auto = #tbl_14_auto
for _, v in ipairs(x) do
local val_16_auto = deep_tostring(v)
if (nil ~= val_16_auto) then
i_15_auto = (i_15_auto + 1)
do end (tbl_14_auto)[i_15_auto] = val_16_auto
else
end
end
_368_ = tbl_14_auto
end
return ("[" .. table.concat(_368_, " ") .. "]")
elseif utils["table?"](x) then
local _370_
do
local tbl_14_auto = {}
local i_15_auto = #tbl_14_auto
for k, v in pairs(x) do
local val_16_auto = (deep_tostring(k, true) .. " " .. deep_tostring(v))
if (nil ~= val_16_auto) then
i_15_auto = (i_15_auto + 1)
do end (tbl_14_auto)[i_15_auto] = val_16_auto
else
end
end
_370_ = tbl_14_auto
end
return ("{" .. table.concat(_370_, " ") .. "}")
elseif (key_3f and (type(x) == "string") and x:find("^[-%w?\\^_!$%&*+./@:|<=>]+$")) then
return (":" .. x)
elseif (type(x) == "string") then
return string.format("%q", x):gsub("\\\"", "\\\\\""):gsub("\"", "\\\"")
else
return tostring(x)
end
end
local function set_fn_metadata(arg_list, docstring, parent, fn_name)
if utils.root.options.useMetadata then
local args
local function _373_(_241)
return ("\"%s\""):format(deep_tostring(_241))
end
args = utils.map(arg_list, _373_)
local meta_fields = {"\"fnl/arglist\"", ("{" .. table.concat(args, ", ") .. "}")}
if docstring then
table.insert(meta_fields, "\"fnl/docstring\"")
table.insert(meta_fields, ("\"" .. docstring:gsub("%s+$", ""):gsub("\\", "\\\\"):gsub("\n", "\\n"):gsub("\"", "\\\"") .. "\""))
else
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, ", ")))
else
return nil
end
end
local function get_fn_name(ast, scope, fn_name, multi)
if (fn_name and (fn_name[1] ~= "nil")) then
local _376_
if not multi then
_376_ = compiler["declare-local"](fn_name, {}, scope, ast)
else
_376_ = (compiler["symbol-to-expression"](fn_name, scope))[1]
end
return _376_, 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, arg_list, docstring)
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 _379_
if local_3f then
_379_ = "local function %s(%s)"
else
_379_ = "%s = function(%s)"
end
compiler.emit(parent, string.format(_379_, fn_name, table.concat(arg_name_list, ", ")), ast)
compiler.emit(parent, f_chunk, ast)
compiler.emit(parent, "end", ast)
set_fn_metadata(arg_list, docstring, 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, arg_list, docstring, scope)
local fn_name = compiler.gensym(scope)
return compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, true, arg_name_list, arg_list, docstring)
end
SPECIALS.fn = function(ast, scope, parent)
local f_scope
do
local _381_ = compiler["make-scope"](scope)
do end (_381_)["vararg"] = false
f_scope = _381_
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 get_arg_name(arg)
if 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) 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
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
else
return compiler.assert(false, ("expected symbol for function parameter: %s"):format(tostring(arg)), ast[index])
end
end
local arg_name_list = utils.map(arg_list, get_arg_name)
local index0, docstring = nil, nil
if ((type(ast[(index + 1)]) == "string") and ((index + 1) < #ast)) then
index0, docstring = (index + 1), ast[(index + 1)]
else
index0, docstring = index, nil
end
if fn_name then
return compile_named_fn(ast, f_scope, f_chunk, parent, index0, fn_name, local_3f, arg_name_list, arg_list, docstring)
else
return compile_anonymous_fn(ast, f_scope, f_chunk, parent, index0, arg_name_list, arg_list, docstring, scope)
end
end
doc_special("fn", {"name?", "args", "docstring?", "..."}, "Function syntax. May optionally include a name and docstring.\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 _386_
do
local _385_ = utils["sym?"](ast[2])
if (nil ~= _385_) then
_386_ = tostring(_385_)
else
_386_ = _385_
end
end
if ("nil" ~= _386_) then
table.insert(parent, {ast = ast, leaf = tostring(ast[2])})
else
end
local _390_
do
local _389_ = utils["sym?"](ast[3])
if (nil ~= _389_) then
_390_ = tostring(_389_)
else
_390_ = _389_
end
end
if ("nil" ~= _390_) then
return tostring(ast[3])
else
return nil
end
end
local function dot(ast, scope, parent)
compiler.assert((1 < #ast), "expected table argument", ast)
local len = #ast
local _let_393_ = compiler.compile1(ast[2], scope, parent, {nval = 1})
local lhs = _let_393_[1]
if (len == 2) then
return tostring(lhs)
else
local indices = {}
for i = 3, len do
local index = ast[i]
if ((type(index) == "string") and utils["valid-lua-identifier?"](index)) then
table.insert(indices, ("." .. index))
else
local _let_394_ = compiler.compile1(index, scope, parent, {nval = 1})
local index0 = _let_394_[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 _398_
do
local tbl_14_auto = {}
local i_15_auto = #tbl_14_auto
for k in pairs(t) do
local val_16_auto
if not ("number" == type(k)) then
val_16_auto = k
else
val_16_auto = nil
end
if (nil ~= val_16_auto) then
i_15_auto = (i_15_auto + 1)
do end (tbl_14_auto)[i_15_auto] = val_16_auto
else
end
end
_398_ = tbl_14_auto
end
return (_398_)[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((#ast >= 3), "expected body expression", ast[1])
for _ = 1, (opts.nval or 0) do
table.insert(pre_syms, compiler.gensym(scope))