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304 lines (249 loc) · 11.1 KB
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#!/usr/bin/python
# Copyright (C) 2014 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import filecmp
import fnmatch
import os
import re
import shutil
import sys
import datetime
import json
copyrightText = """ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/\n
"""
generatorString = "/* Generated by %s do not hand edit. */\n" % os.path.basename(__file__)
functionHeadRegExp = re.compile(r"function\s+\w+\s*\(.*?\)", re.MULTILINE | re.S)
functionNameRegExp = re.compile(r"function\s+(\w+)\s*\(", re.MULTILINE | re.S)
functionParameterFinder = re.compile(r"^function\s+(?:\w+)\s*\(((?:\s*\w+)?\s*(?:\s*,\s*\w+)*)?\)", re.MULTILINE | re.S)
multilineCommentRegExp = re.compile(r"\/\*.*?\*\/", re.MULTILINE | re.S)
singleLineCommentRegExp = re.compile(r"\/\/.*?\n", re.MULTILINE | re.S)
def getCopyright(source):
copyrightBlock = multilineCommentRegExp.findall(source)[0]
copyrightBlock = copyrightBlock[:copyrightBlock.index("Redistribution")]
copyRightLines = []
for line in copyrightBlock.split("\n"):
line = line.replace("/*", "")
line = line.replace("*/", "")
line = line.replace("*", "")
line = line.replace("Copyright", "")
line = line.replace("copyright", "")
line = line.replace("(C)", "")
line = line.replace("(c)", "")
line = line.strip()
if len(line) == 0:
continue
copyRightLines.append(line)
return list(set(copyRightLines))
def getFunctions(source):
source = multilineCommentRegExp.sub("/**/", singleLineCommentRegExp.sub("//\n", source))
matches = [ f for f in functionHeadRegExp.finditer(source)]
functionBounds = []
start = 0
end = 0
for match in matches:
start = match.start()
if start < end:
continue
end = match.end()
while source[end] != '{':
end = end + 1
depth = 1
end = end + 1
while depth > 0:
if source[end] == '{':
depth = depth + 1
elif source[end] == '}':
depth = depth - 1
end = end + 1
functionBounds.append((start, end))
functions = [source[start:end].strip() for (start, end) in functionBounds]
result = []
for function in functions:
function = multilineCommentRegExp.sub("", function)
functionName = functionNameRegExp.findall(function)[0]
functionParameters = functionParameterFinder.findall(function)[0].split(',')
if len(functionParameters[0]) == 0:
functionParameters = []
result.append((functionName, function, functionParameters))
return result
def generateCode(source):
inputFile = open(source, "r")
baseName = os.path.basename(source).replace(".js", "")
source = ""
for line in inputFile:
source = source + line
if sys.platform == "cygwin":
source = source.replace("\r\n", "\n")
return (baseName, getFunctions(source), getCopyright(source))
def mangleName(object, name):
qName = object + "." + name
mangledName = ""
i = 0
while i < len(qName):
if qName[i] == '.':
mangledName = mangledName + qName[i + 1].upper()
i = i + 1
else:
mangledName = mangledName + qName[i]
i = i + 1
return mangledName
builtins = []
baseName = sys.argv[-1]
builtin_definitions = sys.argv[1:-1]
(output_base, _) = os.path.splitext(sys.argv[-1])
copyrights = []
for file in builtin_definitions:
if fnmatch.fnmatch(file, '*.js'):
(baseName, functions, objectCopyrights) = generateCode(file)
copyrights.extend(objectCopyrights)
builtins.append((baseName, functions))
copyrights = list(set(copyrights))
copyrightBody = ""
for copyright in copyrights:
copyrightBody = copyrightBody +" * Copyright (C) " + copyright + "\n"
builtinsHeader = open(output_base + ".h.tmp", "w")
builtinsImplementation = open(output_base + ".cpp.tmp", "w")
copyrightText = "/*\n" + copyrightBody + copyrightText
builtinsHeader.write("""%s
%s
#ifndef JSCBuiltins_H
#define JSCBuiltins_H
namespace JSC {
class FunctionExecutable;
class Identifier;
class JSGlobalObject;
class SourceCode;
class UnlinkedFunctionExecutable;
class VM;
FunctionExecutable* createBuiltinExecutable(VM&, UnlinkedFunctionExecutable*, const SourceCode&);
""" % (generatorString, copyrightText))
codeReferences = []
for (objectName, functions) in builtins:
print("Generating bindings for the %s builtin." % objectName)
builtinsHeader.write("/* %s functions */\n" % objectName)
for (name, implementation, _) in functions:
mangledName = mangleName(objectName, name)
mangledName = mangledName[0].lower() + mangledName[1:] + "Code"
codeReferences.append((mangledName, name, implementation))
builtinsHeader.write("extern const char* s_%s;\n" % mangledName)
builtinsHeader.write("extern const int s_%sLength;\n" % mangledName)
builtinsHeader.write("\n")
builtinsHeader.write("#define JSC_FOREACH_%s_BUILTIN(macro) \\\n" % objectName.replace(".", "_").upper())
for (name, implementation, arguments) in functions:
mangledName = mangleName(objectName, name)
builtinsHeader.write(" macro(%s, %s, %d) \\\n" % (name, mangledName, len(arguments)))
builtinsHeader.write("\n")
for (name, implementation, arguments) in functions:
builtinsHeader.write("#define JSC_BUILTIN_%s 1\n" % mangleName(objectName, name).upper())
builtinsHeader.write("\n\n")
names = []
builtinsHeader.write("#define JSC_FOREACH_BUILTIN(macro)\\\n")
for (codeReference, functionName, source) in codeReferences:
builtinsHeader.write(" macro(%s, %s, s_%sLength) \\\n" % (codeReference, functionName, codeReference))
names.append(functionName)
builtinsHeader.write("\n\n")
builtinsHeader.write("#define JSC_FOREACH_BUILTIN_FUNCTION_NAME(macro) \\\n")
for name in sorted(set(names)):
builtinsHeader.write(" macro(%s) \\\n" % name)
builtinsHeader.write("""
#define JSC_DECLARE_BUILTIN_GENERATOR(codeName, functionName, argumentCount) \\
FunctionExecutable* codeName##Generator(VM&);
JSC_FOREACH_BUILTIN(JSC_DECLARE_BUILTIN_GENERATOR)
#undef JSC_DECLARE_BUILTIN_GENERATOR
#define JSC_BUILTIN_EXISTS(name) defined JSC_BUILTIN_ ## name
}
#endif
""")
builtinsImplementation.write("""%s
%s
#include "config.h"
#include "JSCBuiltins.h"
#include "BuiltinExecutables.h"
#include "Executable.h"
#include "JSCellInlines.h"
#include "VM.h"
namespace JSC {
""" % (generatorString, copyrightText))
for (codeReference, name, source) in codeReferences:
source = "(function " + source[source.index("("):] + ")"
lines = json.dumps(source)[1:-1].split("\\n")
sourceLength = len(source)
source = ""
for line in lines:
source = source + (" \"%s\\n\" \\\n" % line)
builtinsImplementation.write("const char* s_%s =\n%s;\n\n" % (codeReference, source))
builtinsImplementation.write("const int s_%sLength = %d;\n\n" % (codeReference, sourceLength + 1)) # + 1 for \n
builtinsImplementation.write("""
FunctionExecutable* createBuiltinExecutable(VM& vm, UnlinkedFunctionExecutable* unlinkedExecutable, const SourceCode& source)
{
unsigned lineCount = unlinkedExecutable->lineCount();
unsigned startColumn = 1;
unsigned sourceLength = unlinkedExecutable->sourceLength();
bool endColumnIsOnStartLine = !lineCount;
unsigned endColumnExcludingBraces = unlinkedExecutable->unlinkedBodyEndColumn() + (endColumnIsOnStartLine ? 0 : 1);
unsigned startOffset = unlinkedExecutable->startOffset();
unsigned startOffsetExcludingOpenBrace = startOffset + 1;
unsigned endOffsetExcludingCloseBrace = startOffset + sourceLength - 1;
SourceCode bodySource(source.provider(), startOffsetExcludingOpenBrace, endOffsetExcludingCloseBrace, 0, startColumn);
return FunctionExecutable::create(vm, bodySource, unlinkedExecutable, 0, lineCount, startColumn, endColumnExcludingBraces, false);
}
#define JSC_DEFINE_BUILTIN_GENERATOR(codeName, functionName, argumentCount) \\
FunctionExecutable* codeName##Generator(VM& vm) \\
{ \\
return createBuiltinExecutable(vm, vm.builtinExecutables()->codeName##Executable(), vm.builtinExecutables()->codeName##Source()); \\
}
JSC_FOREACH_BUILTIN(JSC_DEFINE_BUILTIN_GENERATOR)
#undef JSC_DEFINE_BUILTIN_GENERATOR
}
""")
builtinsHeader.close()
builtinsImplementation.close()
if (not os.path.exists(output_base + ".h")) or (not filecmp.cmp(output_base + ".h.tmp", output_base + ".h", shallow=False)):
os.rename(output_base + ".h.tmp", output_base + ".h")
else:
os.remove(output_base + ".h.tmp")
if (not os.path.exists(output_base + ".cpp")) or (not filecmp.cmp(output_base + ".cpp.tmp", output_base + ".cpp", shallow=False)):
os.rename(output_base + ".cpp.tmp", output_base + ".cpp")
else:
os.remove(output_base + ".cpp.tmp")