Files
cappuccino/Foundation/objective-j/compiler.js
T

268 lines
10 KiB
JavaScript

/*
* Objective-J.js
* Objective-J
*
* Created by Francisco Tolmasky.
* Copyright 2008-2010, 280 North, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
var FILE = require("file"),
OS = require("os"),
ObjectiveJ = require("objective-j"),
JAKE = require("jake");
require("objective-j/rhino/regexp-rhino-patch");
var compressors = {ss: {id: "minify/shrinksafe"}};
var compressorStats = {};
function compressor(code)
{
var winner,
winnerName;
compressorStats['original'] = (compressorStats['original'] || 0) + code.length;
for (var name in compressors)
{
var aCompressor = require(compressors[name].id),
result = aCompressor.compress(code, {charset: "UTF-8", useServer: true});
compressorStats[name] = (compressorStats[name] || 0) + result.length;
if (!winner || result < winner.length)
{
winner = result;
winnerName = name;
}
}
return winner;
}
function compileWithResolvedFlags(aFilePath, objjcFlags, gccFlags, asPlainJavascript)
{
var shouldObjjPreprocess = true,
shouldCompress = objjcFlags.compress,
fileContents = "",
executable,
code;
if (!shouldObjjPreprocess)
{
try {
var p = OS.popen("which gcc");
if ((p.stdout.read()).length === 0)
{
fileContents = FILE.read(aFilePath, {charset: "UTF-8"});
}
else
{
try {
var gcc = OS.popen("gcc -E -x c -P " + (gccFlags ? gccFlags.join(" ") : "") + " " + OS.enquote(aFilePath), {charset: "UTF-8"}),
chunk = "";
while (chunk = gcc.stdout.read())
fileContents += chunk;
}
finally {
gcc.stdin.close();
gcc.stdout.close();
gcc.stderr.close();
}
}
}
finally {
p.stdin.close();
p.stdout.close();
p.stderr.close();
}
return fileContents;
}
try {
var sources = new JAKE.FileList("**/*.j"),
translateFilenameToPath = {},
otherwayTranslateFilenameToPath = {};
sources.forEach( function(aFilename)
{
translateFilenameToPath[FILE.basename(aFilename)] = aFilename;
otherwayTranslateFilenameToPath[aFilename] = FILE.basename(aFilename);
}, this);
var translatedFilename = translateFilenameToPath[aFilePath] ? translateFilenameToPath[aFilePath] : aFilePath,
otherwayTranslatedFilename = otherwayTranslateFilenameToPath[aFilePath] ? otherwayTranslateFilenameToPath[aFilePath] : aFilePath,
theTranslatedFilename = otherwayTranslatedFilename ? otherwayTranslatedFilename : translatedFilename,
absolutePath = FILE.absolute(theTranslatedFilename),
basePath = absolutePath.substring(0, absolutePath.length - theTranslatedFilename.length);
var rhinoUglyFix = false;
if (system.engine === "rhino")
{
if (typeof document == "undefined")
{
document = {createElement: function(x)
{
return {innerText: "", style: {}};
}};
rhinoUglyFix = true;
}
if (typeof navigator == "undefined")
{
navigator = {"userAgent": "fakenavigator"};
rhinoUglyFix = true;
}
}
ObjectiveJ.FileExecutable.setCurrentCompilerFlags(objjcFlags);
ObjectiveJ.make_narwhal_factory(absolutePath, basePath, translateFilenameToPath)(require, {}, module, system, print);
executable = new ObjectiveJ.FileExecutable(FILE.basename(aFilePath));
if (rhinoUglyFix)
delete document;
}
catch(anException) {
print(anException);
return;
}
if (shouldCompress)
{
code = executable.code();
code = compressor("function(){" + code + "}");
code = code.replace(/^\s*function\s*\(\s*\)\s*{|}\s*;?\s*$/g, "");
executable.setCode(code);
}
return asPlainJavascript ? executable.code() : executable.toMarkedString();
}
function resolveFlags(args)
{
var filePaths = [],
outputFilePaths = [],
index = 0,
count = args.length,
gccFlags = [],
objjcFlags = {};
for (; index < count; ++index)
{
var argument = args[index];
if (argument === "-o")
{
if (++index < count)
outputFilePaths.push(args[index]);
}
else if (argument.indexOf("-D") === 0)
gccFlags.push(argument);
else if (argument.indexOf("-U") === 0)
gccFlags.push(argument);
else if (argument === "--include")
{
if (++index < count)
{
gccFlags.push(argument);
gccFlags.push(args[index]);
}
}
else if (argument.indexOf("-T") === 0)
{
objjcFlags.includeIvarTypeSignatures = false;
objjcFlags.includeMethodArgumentTypeSignatures = false;
}
else if (argument.indexOf("-g") === 0)
objjcFlags.includeMethodFunctionNames = true;
else if (argument.indexOf("-O") === 0)
{
objjcFlags.compress = true;
if (argument.length > 2)
objjcFlags.inlineMsgSendFunctions = true;
}
else if (argument.indexOf("-G") === 0)
objjcFlags.generate = true;
else if (argument.indexOf("--inline-msg-send") === 0)
{
objjcFlags.inlineMsgSendFunctions = true;
}
else
filePaths.push(argument);
}
return {filePaths: filePaths, outputFilePaths: outputFilePaths, objjcFlags: objjcFlags, gccFlags: gccFlags};
}
exports.compile = function(aFilePath, flags)
{
if (flags.split)
flags = flags.split(/\s+/);
var resolvedFlags = resolveFlags(flags);
return compileWithResolvedFlags(aFilePath, resolvedFlags.objjcFlags, resolvedFlags.gccFlags);
};
exports.main = function(args)
{
var shouldPrintOutput = false,
asPlainJavascript = false,
objjcFlags = {};
var argv = args.slice(1);
while (argv.length)
{
if (argv[0] === '--')
{
argv.shift();
break;
} if (argv[0] === "-p" || argv[0] === "--print")
{
shouldPrintOutput = YES;
argv.shift();
continue;
} if (argv[0] === "--unmarked")
{
asPlainJavascript = true;
argv.shift();
continue;
} if (argv[0] === "-T" || argv[0] === "--includeTypeSignatures")
{
objjcFlags.includeIvarTypeSignatures = true;
objjcFlags.includeMethodArgumentTypeSignatures = true;
argv.shift();
continue;
} if (argv[0] === "--help" || argv[0].substr(0, 1) == '-')
{
print("Usage (objjc 2.0): " + args[0] + " [options] [--] file...");
print(" -p, --print print the output directly to stdout");
print(" --unmarked don't tag the output with @STATIC header");
print("");
print(" -T, --dont-include-type-signatures include type signatures in the compiled output");
print(" -g, --include-debug-symbols include debug symbols in the compiled output");
print(" -T, --include-type-signatures include type signatures in the compiled output");
print(" -O, --compress compress the compiled output");
print(" -O2, --inline-msg-send inline objj_msgSend function in the compiled output");
print(" -Wno-unused-but-set-variable turn off warning when a local variable is never read");
print(" -Wno-shadow-ivar turn off warning when a local variable is shadowing an instance variable for the class");
print(" -Wno-create-global-inside-function-or-method turn off warning when creating a global variable inside a function or method");
print(" -Wno-unknown-class-or-global. turn off warning when a class or global variable is not known");
print(" -Wno-unknown-ivar-type turn off warning when the type for an instance variable is not known");
print(" To turn on a warning flag remove the 'no-' prefix. Example: -Wunused-but-set-variable");
print("");
print(" --help print this help");
return;
} break;
} var resolved = resolveFlags(argv),
outputFilePaths = resolved.outputFilePaths,
gccFlags = resolved.gccFlags,
resolvedObjjcFlags = resolved.objjcFlags;
for (var key in resolvedObjjcFlags)
{
if (resolvedObjjcFlags.hasOwnProperty(key))
{
if (resolvedObjjcFlags[key])
objjcFlags[key] = resolvedObjjcFlags[key];
} } resolved.filePaths.forEach( function(filePath, index)
{
if (!shouldPrintOutput)
print("Statically Compiling " + filePath);
var output = compileWithResolvedFlags(filePath, objjcFlags, gccFlags, asPlainJavascript);
if (output !== undefined)
{
if (shouldPrintOutput)
print(output);
else
FILE.write(outputFilePaths[index], output, {charset: "UTF-8"});
} });
};
if (require.main == module.id)
exports.main(system.args);