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Added cancheck; candran.compile, .make and .preprocess returns nil, err instead of throwing an error; can and canc error output should now be similar to Lua

This commit is contained in:
Étienne Fildadut 2020-04-06 21:30:57 +02:00
parent dc19ac56a9
commit 1de0aafa5b
9 changed files with 412 additions and 226 deletions

11
bin/can
View file

@ -1,4 +1,5 @@
#!/bin/lua
#!/usr/bin/env lua
local candran = require("candran")
local cmdline = require("candran.cmdline")
@ -29,7 +30,13 @@ if arg[#arg] == "-" then
f()
-- file
elseif #args >= 1 then
candran.dofile(args[1], args)
local f, err = candran.loadfile(args[1], nil, args)
if not f then
print("can: "..err)
os.exit(1)
else
f()
end
-- REPL
else
-- Setup linenoise

View file

@ -1,4 +1,5 @@
#!/bin/lua
#!/usr/bin/env lua
local candran = require("candran")
local cmdline = require("candran.cmdline")
local parse = require("candran.can-parser.parser").parse
@ -78,13 +79,28 @@ for _, file in ipairs(args) do
local out = input
if args.preprocess then
out = candran.preprocess(out, args)
local r, err = candran.preprocess(out, args)
if not r then
print("canc: "..err)
os.exit(1)
end
out = r
end
if args.compile then
out = candran.compile(out, args)
local r, err = candran.compile(out, args)
if not r then
print("canc: "..err)
os.exit(1)
end
out = r
end
if args.compile == nil and args.preprocess == nil then
out = candran.make(input, args)
local r, err = candran.make(input, args)
if not r then
print("canc: "..err)
os.exit(1)
end
out = r
end
if args.print then

116
bin/cancheck Normal file
View file

@ -0,0 +1,116 @@
#!/usr/bin/env lua
-- Monkey patch Luacheck (tested against version 0.23.0) to support Candran files
local candran = require("candran")
local function pattern(token)
return "()"..token:gsub("[^%w]", "%%%0").."()"
end
local tokenAlias = {
["self"] = { "@", ":" }
}
-- Patch checker
local oldCheck = require("luacheck.check")
local function check(can)
local lua, err = candran.make(can)
if lua then
local r = oldCheck(lua)
-- Calculate Candran file position.
if #r.warnings > 0 then
local lua_lines = {}
for l in (lua.."\n"):gmatch("([^\n]*)\n") do
table.insert(lua_lines, l)
end
local can_lines = {}
for l in (can.."\n"):gmatch("([^\n]*)\n") do
table.insert(can_lines, l)
end
for _, warning in ipairs(r.warnings) do
-- candran line
local lua_line = lua_lines[warning.line]
warning.can_line = tonumber(lua_line:match(".*%-%- .-%:(%d+)$"))
-- candran column
local can_line = can_lines[warning.can_line]
local lua_token = lua_line:sub(warning.column, warning.end_column)
local token_pattern = pattern(lua_token) -- token finding pattern
-- the warning happens on the n-th instance of lua_token on this line
local lua_n = 1
for start in lua_line:gmatch(token_pattern) do
if start >= warning.column then
break
end
lua_n = lua_n + 1
end
-- Find associated candran token. If lua_n > can_nmax, the last found lua_token is used.
-- This approximation should work in like, 90% of cases.
local can_n = 1
local pos = 1
while can_n <= lua_n do
-- find first token or alias of this token
local start, stop = can_line:match(token_pattern, pos)
if tokenAlias[lua_token] then
for _, token in ipairs(tokenAlias[lua_token]) do
local nstart, nstop = can_line:match(pattern(token), pos)
if nstart and (not start or nstart < start) then
start, stop = nstart, nstop
end
end
end
-- found
if start then
pos = stop
warning.can_column, warning.can_end_column = start, stop
can_n = can_n + 1
else
break
end
end
end
end
return r
else
local line, column, msg = err:match(":(%d+):(%d+):%s*(.*)$")
local syntax_error = {
code = "011",
line = line,
column = column,
end_column = column,
msg = msg
}
return {
warnings = {syntax_error},
inline_options = {},
line_lengths = {},
line_endings = {}
}
end
end
package.loaded["luacheck.check"] = check
-- Patch formatter
local format = require("luacheck.format")
local function format_location(file, location, opts)
local res = ("%s:%d:%d"):format(file, location.can_line or location.line, location.can_column or location.column)
if opts.ranges then
res = ("%s-%d"):format(res, location.can_end_column or location.end_column)
end
return res
end
local function setupvalue(fn, val, name, ...)
for i=1, debug.getinfo(fn, "u").nups do
local n, v = debug.getupvalue(fn, i)
if n == name then
if not ... then
debug.setupvalue(fn, i, val)
else
setupvalue(v, val, ...)
end
end
end
end
setupvalue(format.builtin_formatters.plain, format_location, "format_event", "format_location")
require("luacheck.main")

View file

@ -11,7 +11,7 @@
#import("candran.can-parser.parser")
local candran = {
VERSION = "0.11.0"
VERSION = "0.12.0"
}
--- Default options.
@ -37,7 +37,9 @@ end
--- Run the preprocessor
-- @tparam input string input code
-- @tparam options table arguments for the preprocessor. They will be inserted into the preprocessor environement.
-- @treturn output string output code
-- @treturn[1] output string output code
-- @treturn[2] nil nil if error
-- @treturn[2] error string error message
function candran.preprocess(input, options={})
options = util.merge(candran.default, options)
@ -90,10 +92,10 @@ function candran.preprocess(input, options={})
-- open module file
local f = io.open(filepath)
if not f then error("Can't open the module file to import") end
if not f then error("can't open the module file to import") end
margs = util.merge(options, { chunkname = filepath, loadLocal = true, loadPackage = true }, margs)
local modcontent = candran.preprocess(f:read("*a"), margs)
local modcontent = assert(candran.preprocess(f:read("*a"), margs))
f:close()
-- get module name (ex: module name of path.to.module is module)
@ -113,7 +115,7 @@ function candran.preprocess(input, options={})
-- @tparam file string filepath
env.include = function(file)
local f = io.open(file)
if not f then error("Can't open the file "..file.." to include") end
if not f then error("can't open the file "..file.." to include") end
env.write(f:read("*a"))
f:close()
end
@ -131,12 +133,21 @@ function candran.preprocess(input, options={})
end
-- compile & load preprocessor
local preprocess, err = util.load(candran.compile(preprocessor, args), "candran preprocessor", env)
if not preprocess then error("Error while creating Candran preprocessor: " .. err) end
local preprocess, err = candran.compile(preprocessor, options)
if not preprocess then
return nil, "in preprocessor: "..err
end
preprocess, err = util.load(preprocessor, "candran preprocessor", env)
if not preprocess then
return nil, "in preprocessor: "..err
end
-- execute preprocessor
local success, output = pcall(preprocess)
if not success then error("Error while preprocessing file: " .. output) end
if not success then
return nil, "in preprocessor: "..output
end
return output
end
@ -144,14 +155,16 @@ end
--- Run the compiler
-- @tparam input string input code
-- @tparam options table options for the compiler
-- @treturn output string output code
-- @treturn[1] output string output code
-- @treturn[2] nil nil if error
-- @treturn[2] error string error message
function candran.compile(input, options={})
options = util.merge(candran.default, options)
local ast, errmsg = parser.parse(input, options.chunkname)
if not ast then
error("Compiler: error while parsing file: "..errmsg)
return nil, errmsg
end
return require("compiler."..options.target)(input, ast, options)
@ -160,9 +173,18 @@ end
--- Preprocess & compile code
-- @tparam code string input code
-- @tparam options table arguments for the preprocessor and compiler
-- @treturn output string output code
-- @treturn[1] output string output code
-- @treturn[2] nil nil if error
-- @treturn[2] error string error message
function candran.make(code, options)
return candran.compile(candran.preprocess(code, options), options)
local r, err = candran.preprocess(code, options)
if r then
r, err = candran.compile(r, options)
if r then
return r
end
end
return r, err
end
local errorRewritingActive = false
@ -171,7 +193,9 @@ local codeCache = {}
-- Will rewrite errors by default.
function candran.loadfile(filepath, env, options)
local f, err = io.open(filepath)
if not f then error("can't open the file: "..err) end
if not f then
return nil, "cannot open %s":format(err)
end
local content = f:read("*a")
f:close()
@ -183,14 +207,19 @@ end
function candran.load(chunk, chunkname, env, options={})
options = util.merge({ chunkname = tostring(chunkname or chunk) }, options)
codeCache[options.chunkname] = candran.make(chunk, options)
local f, err = util.load(codeCache[options.chunkname], options.chunkname, env)
local code, err = candran.make(chunk, options)
if not code then
return code, err
end
codeCache[options.chunkname] = code
local f, err = util.load(code, options.chunkname, env)
-- Um. Candran isn't supposed to generate invalid Lua code, so this is a major issue.
-- This is not going to raise an error because this is supposed to behave similarly to Lua's load function.
-- But the error message will likely be useless unless you know how Candran works.
if f == nil then
return f, "Candran unexpectedly generated invalid code: "..err
return f, "candran unexpectedly generated invalid code: "..err
end
if options.rewriteErrors == false then
@ -248,7 +277,7 @@ function candran.messageHandler(message)
if originalFile then
local i = 0
for l in originalFile:gmatch("([^\n]*)\n") do
for l in (originalFile.."\n"):gmatch("([^\n]*)\n") do
i = i +1
if i == line then
local extSource, lineMap = l:match(".*%-%- (.-)%:(%d+)$")

View file

@ -299,7 +299,7 @@ local UNPACK = function(list, i, j) -- ./compiler/lua53.can:182
return "table.unpack(" .. list .. (i and (", " .. i .. (j and (", " .. j) or "")) or "") .. ")" -- ./compiler/lua53.can:183
end -- ./compiler/lua53.can:183
local APPEND = function(t, toAppend) -- ./compiler/lua53.can:185
return "do" .. indent() .. "local a = table.pack(" .. toAppend .. ")" .. newline() .. "table.move(a, 1, a.n, #" .. t .. "+1, " .. t .. ")" .. unindent() .. "end" -- ./compiler/lua53.can:186
return "do" .. indent() .. "local " .. var("a") .. " = table.pack(" .. toAppend .. ")" .. newline() .. "table.move(" .. var("a") .. ", 1, " .. var("a") .. ".n, #" .. t .. "+1, " .. t .. ")" .. unindent() .. "end" -- ./compiler/lua53.can:186
end -- ./compiler/lua53.can:186
local CONTINUE_START = function() -- ./compiler/lua53.can:188
return "do" .. indent() -- ./compiler/lua53.can:189
@ -1155,7 +1155,7 @@ local UNPACK = function(list, i, j) -- ./compiler/lua53.can:182
return "table.unpack(" .. list .. (i and (", " .. i .. (j and (", " .. j) or "")) or "") .. ")" -- ./compiler/lua53.can:183
end -- ./compiler/lua53.can:183
local APPEND = function(t, toAppend) -- ./compiler/lua53.can:185
return "do" .. indent() .. "local a = table.pack(" .. toAppend .. ")" .. newline() .. "table.move(a, 1, a.n, #" .. t .. "+1, " .. t .. ")" .. unindent() .. "end" -- ./compiler/lua53.can:186
return "do" .. indent() .. "local " .. var("a") .. " = table.pack(" .. toAppend .. ")" .. newline() .. "table.move(" .. var("a") .. ", 1, " .. var("a") .. ".n, #" .. t .. "+1, " .. t .. ")" .. unindent() .. "end" -- ./compiler/lua53.can:186
end -- ./compiler/lua53.can:186
local CONTINUE_START = function() -- ./compiler/lua53.can:188
return "do" .. indent() -- ./compiler/lua53.can:189
@ -1838,7 +1838,7 @@ UNPACK = function(list, i, j) -- ./compiler/luajit.can:3
return "unpack(" .. list .. (i and (", " .. i .. (j and (", " .. j) or "")) or "") .. ")" -- ./compiler/luajit.can:4
end -- ./compiler/luajit.can:4
APPEND = function(t, toAppend) -- ./compiler/luajit.can:6
return "do" .. indent() .. "local a, p = { " .. toAppend .. " }, #" .. t .. "+1" .. newline() .. "for i=1, #a do" .. indent() .. t .. "[p] = a[i]" .. newline() .. "p = p + 1" .. unindent() .. "end" .. unindent() .. "end" -- ./compiler/luajit.can:7
return "do" .. indent() .. "local " .. var("a") .. ", " .. var("p") .. " = { " .. toAppend .. " }, #" .. t .. "+1" .. newline() .. "for i=1, #" .. var("a") .. " do" .. indent() .. t .. "[" .. var("p") .. "] = " .. var("a") .. "[i]" .. newline() .. "" .. var("p") .. " = " .. var("p") .. " + 1" .. unindent() .. "end" .. unindent() .. "end" -- ./compiler/luajit.can:7
end -- ./compiler/luajit.can:7
tags["_opid"]["idiv"] = function(left, right) -- ./compiler/luajit.can:10
return "math.floor(" .. lua(left) .. " / " .. lua(right) .. ")" -- ./compiler/luajit.can:11
@ -2049,7 +2049,7 @@ local UNPACK = function(list, i, j) -- ./compiler/lua53.can:182
return "table.unpack(" .. list .. (i and (", " .. i .. (j and (", " .. j) or "")) or "") .. ")" -- ./compiler/lua53.can:183
end -- ./compiler/lua53.can:183
local APPEND = function(t, toAppend) -- ./compiler/lua53.can:185
return "do" .. indent() .. "local a = table.pack(" .. toAppend .. ")" .. newline() .. "table.move(a, 1, a.n, #" .. t .. "+1, " .. t .. ")" .. unindent() .. "end" -- ./compiler/lua53.can:186
return "do" .. indent() .. "local " .. var("a") .. " = table.pack(" .. toAppend .. ")" .. newline() .. "table.move(" .. var("a") .. ", 1, " .. var("a") .. ".n, #" .. t .. "+1, " .. t .. ")" .. unindent() .. "end" -- ./compiler/lua53.can:186
end -- ./compiler/lua53.can:186
local CONTINUE_START = function() -- ./compiler/lua53.can:188
return "do" .. indent() -- ./compiler/lua53.can:189
@ -2732,7 +2732,7 @@ UNPACK = function(list, i, j) -- ./compiler/luajit.can:3
return "unpack(" .. list .. (i and (", " .. i .. (j and (", " .. j) or "")) or "") .. ")" -- ./compiler/luajit.can:4
end -- ./compiler/luajit.can:4
APPEND = function(t, toAppend) -- ./compiler/luajit.can:6
return "do" .. indent() .. "local a, p = { " .. toAppend .. " }, #" .. t .. "+1" .. newline() .. "for i=1, #a do" .. indent() .. t .. "[p] = a[i]" .. newline() .. "p = p + 1" .. unindent() .. "end" .. unindent() .. "end" -- ./compiler/luajit.can:7
return "do" .. indent() .. "local " .. var("a") .. ", " .. var("p") .. " = { " .. toAppend .. " }, #" .. t .. "+1" .. newline() .. "for i=1, #" .. var("a") .. " do" .. indent() .. t .. "[" .. var("p") .. "] = " .. var("a") .. "[i]" .. newline() .. "" .. var("p") .. " = " .. var("p") .. " + 1" .. unindent() .. "end" .. unindent() .. "end" -- ./compiler/luajit.can:7
end -- ./compiler/luajit.can:7
tags["_opid"]["idiv"] = function(left, right) -- ./compiler/luajit.can:10
return "math.floor(" .. lua(left) .. " / " .. lua(right) .. ")" -- ./compiler/luajit.can:11
@ -4485,7 +4485,7 @@ return parser -- ./candran/can-parser/parser.lua:744
end -- ./candran/can-parser/parser.lua:744
local parser = _() or parser -- ./candran/can-parser/parser.lua:748
package["loaded"]["candran.can-parser.parser"] = parser or true -- ./candran/can-parser/parser.lua:749
local candran = { ["VERSION"] = "0.11.0" } -- candran.can:14
local candran = { ["VERSION"] = "0.12.0" } -- candran.can:14
candran["default"] = { -- candran.can:18
["target"] = "lua53", -- candran.can:19
["indentation"] = "", -- candran.can:20
@ -4503,212 +4503,228 @@ else -- candran.can:31
candran["default"]["target"] = "lua51" -- candran.can:33
end -- candran.can:33
end -- candran.can:33
candran["preprocess"] = function(input, options) -- candran.can:41
if options == nil then options = {} end -- candran.can:41
options = util["merge"](candran["default"], options) -- candran.can:42
local preprocessor = "" -- candran.can:45
local i = 0 -- candran.can:46
local inLongString = false -- candran.can:47
local inComment = false -- candran.can:48
candran["preprocess"] = function(input, options) -- candran.can:43
if options == nil then options = {} end -- candran.can:43
options = util["merge"](candran["default"], options) -- candran.can:44
local preprocessor = "" -- candran.can:47
local i = 0 -- candran.can:48
local inLongString = false -- candran.can:49
local inComment = false -- candran.can:50
for line in (input .. "\
"):gmatch("(.-\
)") do -- candran.can:49
i = i + (1) -- candran.can:50
if inComment then -- candran.can:52
inComment = not line:match("%]%]") -- candran.can:53
elseif inLongString then -- candran.can:54
inLongString = not line:match("%]%]") -- candran.can:55
else -- candran.can:55
if line:match("[^%-]%[%[") then -- candran.can:57
inLongString = true -- candran.can:58
elseif line:match("%-%-%[%[") then -- candran.can:59
inComment = true -- candran.can:60
end -- candran.can:60
end -- candran.can:60
if not inComment and not inLongString and line:match("^%s*#") and not line:match("^#!") then -- candran.can:63
preprocessor = preprocessor .. (line:gsub("^%s*#", "")) -- candran.can:64
else -- candran.can:64
local l = line:sub(1, - 2) -- candran.can:66
if not inLongString and options["mapLines"] and not l:match("%-%- (.-)%:(%d+)$") then -- candran.can:67
)") do -- candran.can:51
i = i + (1) -- candran.can:52
if inComment then -- candran.can:54
inComment = not line:match("%]%]") -- candran.can:55
elseif inLongString then -- candran.can:56
inLongString = not line:match("%]%]") -- candran.can:57
else -- candran.can:57
if line:match("[^%-]%[%[") then -- candran.can:59
inLongString = true -- candran.can:60
elseif line:match("%-%-%[%[") then -- candran.can:61
inComment = true -- candran.can:62
end -- candran.can:62
end -- candran.can:62
if not inComment and not inLongString and line:match("^%s*#") and not line:match("^#!") then -- candran.can:65
preprocessor = preprocessor .. (line:gsub("^%s*#", "")) -- candran.can:66
else -- candran.can:66
local l = line:sub(1, - 2) -- candran.can:68
if not inLongString and options["mapLines"] and not l:match("%-%- (.-)%:(%d+)$") then -- candran.can:69
preprocessor = preprocessor .. (("write(%q)"):format(l .. " -- " .. options["chunkname"] .. ":" .. i) .. "\
") -- candran.can:68
else -- candran.can:68
preprocessor = preprocessor .. (("write(%q)"):format(line:sub(1, - 2)) .. "\
") -- candran.can:70
end -- candran.can:70
end -- candran.can:70
end -- candran.can:70
preprocessor = preprocessor .. ("return output") -- candran.can:74
local env = util["merge"](_G, options) -- candran.can:77
env["candran"] = candran -- candran.can:79
env["output"] = "" -- candran.can:81
env["import"] = function(modpath, margs) -- candran.can:88
if margs == nil then margs = {} end -- candran.can:88
local filepath = assert(util["search"](modpath, { -- candran.can:89
"can", -- candran.can:89
"lua" -- candran.can:89
}), "No module named \"" .. modpath .. "\"") -- candran.can:89
local f = io["open"](filepath) -- candran.can:92
if not f then -- candran.can:93
error("Can't open the module file to import") -- candran.can:93
end -- candran.can:93
margs = util["merge"](options, { -- candran.can:95
["chunkname"] = filepath, -- candran.can:95
["loadLocal"] = true, -- candran.can:95
["loadPackage"] = true -- candran.can:95
}, margs) -- candran.can:95
local modcontent = candran["preprocess"](f:read("*a"), margs) -- candran.can:96
f:close() -- candran.can:97
local modname = modpath:match("[^%.]+$") -- candran.can:100
else -- candran.can:70
preprocessor = preprocessor .. (("write(%q)"):format(line:sub(1, - 2)) .. "\
") -- candran.can:72
end -- candran.can:72
end -- candran.can:72
end -- candran.can:72
preprocessor = preprocessor .. ("return output") -- candran.can:76
local env = util["merge"](_G, options) -- candran.can:79
env["candran"] = candran -- candran.can:81
env["output"] = "" -- candran.can:83
env["import"] = function(modpath, margs) -- candran.can:90
if margs == nil then margs = {} end -- candran.can:90
local filepath = assert(util["search"](modpath, { -- candran.can:91
"can", -- candran.can:91
"lua" -- candran.can:91
}), "No module named \"" .. modpath .. "\"") -- candran.can:91
local f = io["open"](filepath) -- candran.can:94
if not f then -- candran.can:95
error("can't open the module file to import") -- candran.can:95
end -- candran.can:95
margs = util["merge"](options, { -- candran.can:97
["chunkname"] = filepath, -- candran.can:97
["loadLocal"] = true, -- candran.can:97
["loadPackage"] = true -- candran.can:97
}, margs) -- candran.can:97
local modcontent = assert(candran["preprocess"](f:read("*a"), margs)) -- candran.can:98
f:close() -- candran.can:99
local modname = modpath:match("[^%.]+$") -- candran.can:102
env["write"]("-- MODULE " .. modpath .. " --\
" .. "local function _()\
" .. modcontent .. "\
" .. "end\
" .. (margs["loadLocal"] and ("local %s = _() or %s\
"):format(modname, modname) or "") .. (margs["loadPackage"] and ("package.loaded[%q] = %s or true\
"):format(modpath, margs["loadLocal"] and modname or "_()") or "") .. "-- END OF MODULE " .. modpath .. " --") -- candran.can:109
end -- candran.can:109
env["include"] = function(file) -- candran.can:114
local f = io["open"](file) -- candran.can:115
if not f then -- candran.can:116
error("Can't open the file " .. file .. " to include") -- candran.can:116
end -- candran.can:116
env["write"](f:read("*a")) -- candran.can:117
f:close() -- candran.can:118
"):format(modpath, margs["loadLocal"] and modname or "_()") or "") .. "-- END OF MODULE " .. modpath .. " --") -- candran.can:111
end -- candran.can:111
env["include"] = function(file) -- candran.can:116
local f = io["open"](file) -- candran.can:117
if not f then -- candran.can:118
error("can't open the file " .. file .. " to include") -- candran.can:118
end -- candran.can:118
env["write"] = function(...) -- candran.can:122
env["write"](f:read("*a")) -- candran.can:119
f:close() -- candran.can:120
end -- candran.can:120
env["write"] = function(...) -- candran.can:124
env["output"] = env["output"] .. (table["concat"]({ ... }, "\9") .. "\
") -- candran.can:123
end -- candran.can:123
env["placeholder"] = function(name) -- candran.can:127
if env[name] then -- candran.can:128
env["write"](env[name]) -- candran.can:129
end -- candran.can:129
end -- candran.can:129
local preprocess, err = util["load"](candran["compile"](preprocessor, args), "candran preprocessor", env) -- candran.can:134
if not preprocess then -- candran.can:135
error("Error while creating Candran preprocessor: " .. err) -- candran.can:135
end -- candran.can:135
local success, output = pcall(preprocess) -- candran.can:138
if not success then -- candran.can:139
error("Error while preprocessing file: " .. output) -- candran.can:139
end -- candran.can:139
return output -- candran.can:141
end -- candran.can:141
candran["compile"] = function(input, options) -- candran.can:148
if options == nil then options = {} end -- candran.can:148
options = util["merge"](candran["default"], options) -- candran.can:149
local ast, errmsg = parser["parse"](input, options["chunkname"]) -- candran.can:151
if not ast then -- candran.can:153
error("Compiler: error while parsing file: " .. errmsg) -- candran.can:154
end -- candran.can:154
return require("compiler." .. options["target"])(input, ast, options) -- candran.can:157
end -- candran.can:157
candran["make"] = function(code, options) -- candran.can:164
return candran["compile"](candran["preprocess"](code, options), options) -- candran.can:165
end -- candran.can:165
local errorRewritingActive = false -- candran.can:168
local codeCache = {} -- candran.can:169
candran["loadfile"] = function(filepath, env, options) -- candran.can:172
local f, err = io["open"](filepath) -- candran.can:173
if not f then -- candran.can:174
error("can't open the file: " .. err) -- candran.can:174
end -- candran.can:174
local content = f:read("*a") -- candran.can:175
f:close() -- candran.can:176
return candran["load"](content, filepath, env, options) -- candran.can:178
end -- candran.can:178
candran["load"] = function(chunk, chunkname, env, options) -- candran.can:183
if options == nil then options = {} end -- candran.can:183
options = util["merge"]({ ["chunkname"] = tostring(chunkname or chunk) }, options) -- candran.can:184
codeCache[options["chunkname"]] = candran["make"](chunk, options) -- candran.can:186
local f, err = util["load"](codeCache[options["chunkname"]], options["chunkname"], env) -- candran.can:187
if f == nil then -- candran.can:192
return f, "Candran unexpectedly generated invalid code: " .. err -- candran.can:193
end -- candran.can:193
if options["rewriteErrors"] == false then -- candran.can:196
return f -- candran.can:197
else -- candran.can:197
return function(...) -- candran.can:199
local params = { ... } -- candran.can:200
if not errorRewritingActive then -- candran.can:201
errorRewritingActive = true -- candran.can:202
local t = { xpcall(function() -- candran.can:203
return f(unpack(params)) -- candran.can:203
end, candran["messageHandler"]) } -- candran.can:203
errorRewritingActive = false -- candran.can:204
if t[1] == false then -- candran.can:205
error(t[2], 0) -- candran.can:206
end -- candran.can:206
return unpack(t, 2) -- candran.can:208
else -- candran.can:208
return f(...) -- candran.can:210
end -- candran.can:210
end -- candran.can:210
end -- candran.can:210
end -- candran.can:210
candran["dofile"] = function(filename, options) -- candran.can:218
local f, err = candran["loadfile"](filename, nil, options) -- candran.can:219
") -- candran.can:125
end -- candran.can:125
env["placeholder"] = function(name) -- candran.can:129
if env[name] then -- candran.can:130
env["write"](env[name]) -- candran.can:131
end -- candran.can:131
end -- candran.can:131
local preprocess, err = candran["compile"](preprocessor, options) -- candran.can:136
if not preprocess then -- candran.can:137
return nil, "in preprocessor: " .. err -- candran.can:138
end -- candran.can:138
preprocess, err = util["load"](preprocessor, "candran preprocessor", env) -- candran.can:141
if not preprocess then -- candran.can:142
return nil, "in preprocessor: " .. err -- candran.can:143
end -- candran.can:143
local success, output = pcall(preprocess) -- candran.can:147
if not success then -- candran.can:148
return nil, "in preprocessor: " .. output -- candran.can:149
end -- candran.can:149
return output -- candran.can:152
end -- candran.can:152
candran["compile"] = function(input, options) -- candran.can:161
if options == nil then options = {} end -- candran.can:161
options = util["merge"](candran["default"], options) -- candran.can:162
local ast, errmsg = parser["parse"](input, options["chunkname"]) -- candran.can:164
if not ast then -- candran.can:166
return nil, errmsg -- candran.can:167
end -- candran.can:167
return require("compiler." .. options["target"])(input, ast, options) -- candran.can:170
end -- candran.can:170
candran["make"] = function(code, options) -- candran.can:179
local r, err = candran["preprocess"](code, options) -- candran.can:180
if r then -- candran.can:181
r, err = candran["compile"](r, options) -- candran.can:182
if r then -- candran.can:183
return r -- candran.can:184
end -- candran.can:184
end -- candran.can:184
return r, err -- candran.can:187
end -- candran.can:187
local errorRewritingActive = false -- candran.can:190
local codeCache = {} -- candran.can:191
candran["loadfile"] = function(filepath, env, options) -- candran.can:194
local f, err = io["open"](filepath) -- candran.can:195
if not f then -- candran.can:196
return nil, ("cannot open %s"):format(err) -- candran.can:197
end -- candran.can:197
local content = f:read("*a") -- candran.can:199
f:close() -- candran.can:200
return candran["load"](content, filepath, env, options) -- candran.can:202
end -- candran.can:202
candran["load"] = function(chunk, chunkname, env, options) -- candran.can:207
if options == nil then options = {} end -- candran.can:207
options = util["merge"]({ ["chunkname"] = tostring(chunkname or chunk) }, options) -- candran.can:208
local code, err = candran["make"](chunk, options) -- candran.can:210
if not code then -- candran.can:211
return code, err -- candran.can:212
end -- candran.can:212
codeCache[options["chunkname"]] = code -- candran.can:215
local f, err = util["load"](code, options["chunkname"], env) -- candran.can:216
if f == nil then -- candran.can:221
error(err) -- candran.can:222
else -- candran.can:222
return f() -- candran.can:224
end -- candran.can:224
end -- candran.can:224
candran["messageHandler"] = function(message) -- candran.can:230
return f, "candran unexpectedly generated invalid code: " .. err -- candran.can:222
end -- candran.can:222
if options["rewriteErrors"] == false then -- candran.can:225
return f -- candran.can:226
else -- candran.can:226
return function(...) -- candran.can:228
local params = { ... } -- candran.can:229
if not errorRewritingActive then -- candran.can:230
errorRewritingActive = true -- candran.can:231
local t = { xpcall(function() -- candran.can:232
return f(unpack(params)) -- candran.can:232
end, candran["messageHandler"]) } -- candran.can:232
errorRewritingActive = false -- candran.can:233
if t[1] == false then -- candran.can:234
error(t[2], 0) -- candran.can:235
end -- candran.can:235
return unpack(t, 2) -- candran.can:237
else -- candran.can:237
return f(...) -- candran.can:239
end -- candran.can:239
end -- candran.can:239
end -- candran.can:239
end -- candran.can:239
candran["dofile"] = function(filename, options) -- candran.can:247
local f, err = candran["loadfile"](filename, nil, options) -- candran.can:248
if f == nil then -- candran.can:250
error(err) -- candran.can:251
else -- candran.can:251
return f() -- candran.can:253
end -- candran.can:253
end -- candran.can:253
candran["messageHandler"] = function(message) -- candran.can:259
return debug["traceback"](message, 2):gsub("(\
?%s*)([^\
]-)%:(%d+)%:", function(indentation, source, line) -- candran.can:231
line = tonumber(line) -- candran.can:232
local originalFile -- candran.can:234
local strName = source:match("%[string \"(.-)\"%]") -- candran.can:235
if strName then -- candran.can:236
if codeCache[strName] then -- candran.can:237
originalFile = codeCache[strName] -- candran.can:238
source = strName -- candran.can:239
end -- candran.can:239
else -- candran.can:239
local fi = io["open"](source, "r") -- candran.can:242
if fi then -- candran.can:243
originalFile = fi:read("*a") -- candran.can:244
fi:close() -- candran.can:245
end -- candran.can:245
end -- candran.can:245
if originalFile then -- candran.can:249
local i = 0 -- candran.can:250
for l in originalFile:gmatch("([^\
]-)%:(%d+)%:", function(indentation, source, line) -- candran.can:260
line = tonumber(line) -- candran.can:261
local originalFile -- candran.can:263
local strName = source:match("%[string \"(.-)\"%]") -- candran.can:264
if strName then -- candran.can:265
if codeCache[strName] then -- candran.can:266
originalFile = codeCache[strName] -- candran.can:267
source = strName -- candran.can:268
end -- candran.can:268
else -- candran.can:268
local fi = io["open"](source, "r") -- candran.can:271
if fi then -- candran.can:272
originalFile = fi:read("*a") -- candran.can:273
fi:close() -- candran.can:274
end -- candran.can:274
end -- candran.can:274
if originalFile then -- candran.can:278
local i = 0 -- candran.can:279
for l in (originalFile .. "\
"):gmatch("([^\
]*)\
") do -- candran.can:251
i = i + 1 -- candran.can:252
if i == line then -- candran.can:253
local extSource, lineMap = l:match(".*%-%- (.-)%:(%d+)$") -- candran.can:254
if lineMap then -- candran.can:255
if extSource ~= source then -- candran.can:256
return indentation .. extSource .. ":" .. lineMap .. "(" .. extSource .. ":" .. line .. "):" -- candran.can:257
else -- candran.can:257
return indentation .. extSource .. ":" .. lineMap .. "(" .. line .. "):" -- candran.can:259
end -- candran.can:259
end -- candran.can:259
break -- candran.can:262
end -- candran.can:262
end -- candran.can:262
end -- candran.can:262
end) -- candran.can:262
end -- candran.can:262
candran["searcher"] = function(modpath) -- candran.can:270
local filepath = util["search"](modpath, { "can" }) -- candran.can:271
if not filepath then -- candran.can:272
") do -- candran.can:280
i = i + 1 -- candran.can:281
if i == line then -- candran.can:282
local extSource, lineMap = l:match(".*%-%- (.-)%:(%d+)$") -- candran.can:283
if lineMap then -- candran.can:284
if extSource ~= source then -- candran.can:285
return indentation .. extSource .. ":" .. lineMap .. "(" .. extSource .. ":" .. line .. "):" -- candran.can:286
else -- candran.can:286
return indentation .. extSource .. ":" .. lineMap .. "(" .. line .. "):" -- candran.can:288
end -- candran.can:288
end -- candran.can:288
break -- candran.can:291
end -- candran.can:291
end -- candran.can:291
end -- candran.can:291
end) -- candran.can:291
end -- candran.can:291
candran["searcher"] = function(modpath) -- candran.can:299
local filepath = util["search"](modpath, { "can" }) -- candran.can:300
if not filepath then -- candran.can:301
return "\
\9no candran file in package.path" -- candran.can:273
end -- candran.can:273
return candran["loadfile"](filepath) -- candran.can:275
end -- candran.can:275
candran["setup"] = function() -- candran.can:279
if _VERSION == "Lua 5.1" then -- candran.can:280
table["insert"](package["loaders"], 2, candran["searcher"]) -- candran.can:281
else -- candran.can:281
table["insert"](package["searchers"], 2, candran["searcher"]) -- candran.can:283
end -- candran.can:283
return candran -- candran.can:285
end -- candran.can:285
return candran -- candran.can:288
\9no candran file in package.path" -- candran.can:302
end -- candran.can:302
return candran["loadfile"](filepath) -- candran.can:304
end -- candran.can:304
candran["setup"] = function() -- candran.can:308
if _VERSION == "Lua 5.1" then -- candran.can:309
table["insert"](package["loaders"], 2, candran["searcher"]) -- candran.can:310
else -- candran.can:310
table["insert"](package["searchers"], 2, candran["searcher"]) -- candran.can:312
end -- candran.can:312
return candran -- candran.can:314
end -- candran.can:314
return candran -- candran.can:317

View file

@ -183,7 +183,7 @@ return function(code, ast, options)
return "table.unpack("..list..(i and (", "..i..(j and (", "..j) or "")) or "")..")"
end
local APPEND = (t, toAppend) -- append values "toAppend" (multiple values possible) to t
return "do"..indent().."local a = table.pack("..toAppend..")"..newline().."table.move(a, 1, a.n, #"..t.."+1, "..t..")"..unindent().."end"
return "do"..indent().."local "..var("a").." = table.pack("..toAppend..")"..newline().."table.move("..var("a")..", 1, "..var("a")..".n, #"..t.."+1, "..t..")"..unindent().."end"
end
local CONTINUE_START = () -- at the start of loops using continue
return "do"..indent()

View file

@ -4,7 +4,7 @@ UNPACK = (list, i, j)
return "unpack(" .. list .. (i and (", " .. i .. (j and (", " .. j) or "")) or "") .. ")"
end
APPEND = (t, toAppend)
return "do" .. indent() .. "local a, p = { " .. toAppend .. " }, #" .. t .. "+1" .. newline() .. "for i=1, #a do" .. indent() .. t .. "[p] = a[i]" .. newline() .. "p = p + 1" .. unindent() .. "end" .. unindent() .. "end"
return "do" .. indent() .. "local "..var("a")..", "..var("p").." = { " .. toAppend .. " }, #" .. t .. "+1" .. newline() .. "for i=1, #"..var("a").." do" .. indent() .. t .. "["..var("p").."] = "..var("a").."[i]" .. newline() .. ""..var("p").." = "..var("p").." + 1" .. unindent() .. "end" .. unindent() .. "end"
end
tags._opid.idiv = (left, right)

View file

@ -23,7 +23,9 @@ source = {
dependencies = {
"lua >= 5.1",
"lpeglabel >= 1.5.0"
"lpeglabel >= 1.5.0",
"linenoise >= 0.9",
"luacheck >= 0.23.0"
}
build = {
@ -32,6 +34,6 @@ build = {
candran = "candran.lua"
},
install = {
bin = { "bin/can", "bin/canc" }
bin = { "bin/can", "bin/canc", "bin/cancheck" }
}
}

View file

@ -15,7 +15,7 @@ local function test(name, candranCode, expectedResult, options)
options.chunkname = name
-- make code
local success, code = pcall(candran.make, candranCode, options)
local success, code = pcall(function() return assert(candran.make(candranCode, options)) end)
if not success then
self.result = "error"
self.message = "/!\\ error while making code:\n"..code