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--[[
Copyright 2014 The Luvit Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
s
]]
local src, gen = ...
local _, jit = pcall(require, "jit") if jit and jit.off then jit.off() end
local chunk = assert(loadfile(src, nil, '@'..src))
local bytecode = string.dump(chunk)
local function basename(name)
local base = name
if base:match "[/\\]" then
base = name:match("^.*[/\\](.*)$")
end
base = base:gsub("^%.", "_")
if base:match "%." then
base = base:match("^(.*)%."):gsub("%.", "_")
end
return base
end
local function escapefn(name)
return '"'..
name:gsub('\\', '\\\\')
:gsub('\n', '\\n')
:gsub('\r', '\\r')
:gsub('"', '\\"')..'"'
end
local function write_chunk(s)
local t = { "{\n " };
local cc = 7
for i = 1, #s do
local c = string.byte(s, i, i)
local ss = (" 0x%X"):format(c)
if cc + #ss > 77 then
t[#t+1] = "\n "
t[#t+1] = ss
cc = 7 + #ss
if i ~= #s then
t[#t+1] = ","
cc = cc + 1
end
else
t[#t+1] = ss
cc = cc + #ss
if i ~= #s then
t[#t+1] = ","
cc = cc + 1
end
end
end
t[#t+1] = "\n }"
return (table.concat(t))
end
local function W(...)
io.write(...)
return W
end
io.output(gen)
W [[
/* generated source for Lua codes */
#ifndef LUA_LIB
# define LUA_LIB
#endif
#include <lua.h>
#include <lauxlib.h>
LUALIB_API int luaopen_]](basename(src))[[(lua_State *L) {
size_t len = ]](#bytecode)[[;
const char chunk[] = ]](write_chunk(bytecode))[[;
if (luaL_loadbuffer(L, chunk, len, ]](escapefn(src))[[) != 0)
lua_error(L);
lua_insert(L, 1);
lua_call(L, lua_gettop(L)-1, LUA_MULTRET);
return lua_gettop(L);
}
]]
io.close()
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