AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
3daff287fc
v8/src/SConscript
rossberg@chromium.org 090d09d685 ES6 symbols: Implement Symbol intrinsic and basic functionality 
- Add --harmony-symbols flag.
- Add Symbol constructor; allow symbols as (unreplaced) return value from constructors.
- Introduce %CreateSymbol and %_IsSymbol natives and respective instructions.
- Extend 'typeof' code generation to handle symbols.
- Extend CompareIC with a UNIQUE_NAMES state that (uniformly) handles internalized strings and symbols.
- Property lookup delegates to SymbolDelegate object for symbols, which only carries the toString method.
- Extend Object.prototype.toString to recognise symbols.

Per the current draft spec, symbols are actually pseudo objects that are frozen with a null prototype and only one property (toString). For simplicity, we do not treat them as proper objects for now, although typeof will return "object". Only property access works as if they were (frozen) objects (via the internal delegate object).

(Baseline CL: https://codereview.chromium.org/12223071/)

R=mstarzinger@chromium.org
BUG=v8:2158

Review URL: https://codereview.chromium.org/12296026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-03-01 13:28:55 +00:00

414 lines
11 KiB
Python
Executable File
Raw Blame History

# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * 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.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "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 THE COPYRIGHT
# OWNER 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 sys
from os.path import join, dirname, abspath
root_dir = dirname(File('SConstruct').rfile().abspath)
sys.path.append(join(root_dir, 'tools'))
import js2c
Import('context')
Import('tools')
Import('d8_env')
SOURCES = {
'all': Split("""
accessors.cc
allocation.cc
api.cc
assembler.cc
ast.cc
atomicops_internals_x86_gcc.cc
bignum-dtoa.cc
bignum.cc
bootstrapper.cc
builtins.cc
cached-powers.cc
checks.cc
circular-queue.cc
code-stubs.cc
codegen.cc
compilation-cache.cc
compiler.cc
contexts.cc
conversions.cc
counters.cc
cpu-profiler.cc
data-flow.cc
date.cc
dateparser.cc
debug-agent.cc
debug.cc
deoptimizer.cc
disassembler.cc
diy-fp.cc
dtoa.cc
elements-kind.cc
elements.cc
execution.cc
extensions/externalize-string-extension.cc
extensions/gc-extension.cc
extensions/statistics-extension.cc
factory.cc
fast-dtoa.cc
fixed-dtoa.cc
flags.cc
frames.cc
full-codegen.cc
func-name-inferrer.cc
gdb-jit.cc
global-handles.cc
handles.cc
heap-profiler.cc
heap-snapshot-generator.cc
heap.cc
hydrogen-instructions.cc
hydrogen.cc
ic.cc
incremental-marking.cc
interface.cc
interpreter-irregexp.cc
isolate.cc
jsregexp.cc
lithium-allocator.cc
lithium.cc
liveedit.cc
log-utils.cc
log.cc
mark-compact.cc
messages.cc
objects-printer.cc
objects-visiting.cc
objects.cc
once.cc
optimizing-compiler-thread.cc
parser.cc
preparse-data.cc
preparser.cc
profile-generator.cc
property.cc
regexp-macro-assembler-irregexp.cc
regexp-macro-assembler.cc
regexp-stack.cc
rewriter.cc
runtime-profiler.cc
runtime.cc
safepoint-table.cc
scanner-character-streams.cc
scanner.cc
scopeinfo.cc
scopes.cc
serialize.cc
snapshot-common.cc
spaces.cc
store-buffer.cc
string-search.cc
string-stream.cc
strtod.cc
stub-cache.cc
token.cc
transitions.cc
type-info.cc
unicode.cc
utils.cc
v8-counters.cc
v8.cc
v8conversions.cc
v8threads.cc
v8utils.cc
variables.cc
version.cc
zone.cc
"""),
'arch:arm': Split("""
arm/builtins-arm.cc
arm/code-stubs-arm.cc
arm/codegen-arm.cc
arm/constants-arm.cc
arm/cpu-arm.cc
arm/debug-arm.cc
arm/deoptimizer-arm.cc
arm/disasm-arm.cc
arm/frames-arm.cc
arm/full-codegen-arm.cc
arm/ic-arm.cc
arm/lithium-arm.cc
arm/lithium-codegen-arm.cc
arm/lithium-gap-resolver-arm.cc
arm/macro-assembler-arm.cc
arm/regexp-macro-assembler-arm.cc
arm/stub-cache-arm.cc
arm/assembler-arm.cc
"""),
'arch:mips': Split("""
mips/assembler-mips.cc
mips/builtins-mips.cc
mips/code-stubs-mips.cc
mips/codegen-mips.cc
mips/constants-mips.cc
mips/cpu-mips.cc
mips/debug-mips.cc
mips/deoptimizer-mips.cc
mips/disasm-mips.cc
mips/frames-mips.cc
mips/full-codegen-mips.cc
mips/ic-mips.cc
mips/lithium-codegen-mips.cc
mips/lithium-gap-resolver-mips.cc
mips/lithium-mips.cc
mips/macro-assembler-mips.cc
mips/regexp-macro-assembler-mips.cc
mips/stub-cache-mips.cc
"""),
'arch:ia32': Split("""
ia32/assembler-ia32.cc
ia32/builtins-ia32.cc
ia32/code-stubs-ia32.cc
ia32/codegen-ia32.cc
ia32/cpu-ia32.cc
ia32/debug-ia32.cc
ia32/deoptimizer-ia32.cc
ia32/disasm-ia32.cc
ia32/frames-ia32.cc
ia32/full-codegen-ia32.cc
ia32/ic-ia32.cc
ia32/lithium-codegen-ia32.cc
ia32/lithium-gap-resolver-ia32.cc
ia32/lithium-ia32.cc
ia32/macro-assembler-ia32.cc
ia32/regexp-macro-assembler-ia32.cc
ia32/stub-cache-ia32.cc
"""),
'arch:x64': Split("""
x64/assembler-x64.cc
x64/builtins-x64.cc
x64/code-stubs-x64.cc
x64/codegen-x64.cc
x64/cpu-x64.cc
x64/debug-x64.cc
x64/deoptimizer-x64.cc
x64/disasm-x64.cc
x64/frames-x64.cc
x64/full-codegen-x64.cc
x64/ic-x64.cc
x64/lithium-codegen-x64.cc
x64/lithium-gap-resolver-x64.cc
x64/lithium-x64.cc
x64/macro-assembler-x64.cc
x64/regexp-macro-assembler-x64.cc
x64/stub-cache-x64.cc
"""),
'simulator:arm': ['arm/simulator-arm.cc'],
'simulator:mips': ['mips/simulator-mips.cc'],
'os:freebsd': ['platform-freebsd.cc', 'platform-posix.cc'],
'os:openbsd': ['platform-openbsd.cc', 'platform-posix.cc'],
'os:linux': ['platform-linux.cc', 'platform-posix.cc'],
'os:android': ['platform-linux.cc', 'platform-posix.cc'],
'os:macos': ['platform-macos.cc', 'platform-posix.cc'],
'os:solaris': ['platform-solaris.cc', 'platform-posix.cc'],
'os:cygwin': ['platform-cygwin.cc', 'platform-posix.cc'],
'os:nullos': ['platform-nullos.cc'],
'os:win32': ['platform-win32.cc', 'win32-math.cc'],
'mode:release': [],
'mode:debug': [
'objects-debug.cc', 'prettyprinter.cc', 'regexp-macro-assembler-tracer.cc'
]
}
PREPARSER_SOURCES = {
'all': Split("""
allocation.cc
bignum.cc
bignum-dtoa.cc
cached-powers.cc
conversions.cc
diy-fp.cc
dtoa.cc
fast-dtoa.cc
fixed-dtoa.cc
preparse-data.cc
preparser.cc
preparser-api.cc
scanner.cc
strtod.cc
token.cc
unicode.cc
utils.cc
"""),
'os:win32': ['win32-math.cc']
}
D8_LIGHT_FILES = {
'all': [
'd8.cc'
]
}
D8_FULL_FILES = {
'all': [
'd8.cc', 'd8-debug.cc'
],
'os:linux': [
'd8-posix.cc'
],
'os:macos': [
'd8-posix.cc'
],
'os:android': [
'd8-posix.cc'
],
'os:freebsd': [
'd8-posix.cc'
],
'os:openbsd': [
'd8-posix.cc'
],
'os:solaris': [
'd8-posix.cc'
],
'os:cygwin': [
'd8-posix.cc'
],
'os:win32': [
'd8-windows.cc'
],
'os:nullos': [
'd8-windows.cc' # Empty implementation at the moment.
],
'console:readline': [
'd8-readline.cc'
]
}
LIBRARY_FILES = '''
runtime.js
v8natives.js
array.js
string.js
uri.js
math.js
messages.js
apinatives.js
date.js
regexp.js
json.js
liveedit-debugger.js
mirror-debugger.js
debug-debugger.js
'''.split()
EXPERIMENTAL_LIBRARY_FILES = '''
symbol.js
proxy.js
collection.js
'''.split()
def Abort(message):
print message
sys.exit(1)
def ConfigureObjectFiles():
env = Environment(tools=tools)
env.Replace(**context.flags['v8'])
context.ApplyEnvOverrides(env)
env['BUILDERS']['JS2C'] = Builder(action=js2c.JS2C)
env['BUILDERS']['Snapshot'] = Builder(action='$SOURCE $TARGET --logfile "$LOGFILE" --log-snapshot-positions')
def BuildJS2CEnv(type):
js2c_env = { 'TYPE': type, 'COMPRESSION': 'off' }
if 'COMPRESS_STARTUP_DATA_BZ2' in env['CPPDEFINES']:
js2c_env['COMPRESSION'] = 'bz2'
return js2c_env
# Build the standard platform-independent source files.
source_files = context.GetRelevantSources(SOURCES)
d8_js = env.JS2C('d8-js.cc', 'd8.js', **{'TYPE': 'D8', 'COMPRESSION': 'off'})
d8_js_obj = context.ConfigureObject(env, d8_js, CPPPATH=['.'])
if context.options['library'] == 'shared':
d8_files = context.GetRelevantSources(D8_LIGHT_FILES)
d8_objs = []
else:
d8_files = context.GetRelevantSources(D8_FULL_FILES)
d8_objs = [d8_js_obj]
d8_objs.append(context.ConfigureObject(d8_env, [d8_files]))
# Combine the JavaScript library files into a single C++ file and
# compile it.
library_files = [s for s in LIBRARY_FILES]
library_files.append('macros.py')
libraries_src = env.JS2C(
['libraries.cc'], library_files, **BuildJS2CEnv('CORE'))
libraries_obj = context.ConfigureObject(env, libraries_src, CPPPATH=['.'])
# Combine the experimental JavaScript library files into a C++ file
# and compile it.
experimental_library_files = [ s for s in EXPERIMENTAL_LIBRARY_FILES ]
experimental_library_files.append('macros.py')
experimental_libraries_src = env.JS2C(['experimental-libraries.cc'],
experimental_library_files,
**BuildJS2CEnv('EXPERIMENTAL'))
experimental_libraries_obj = context.ConfigureObject(env, experimental_libraries_src, CPPPATH=['.'])
source_objs = context.ConfigureObject(env, source_files)
non_snapshot_files = [source_objs]
preparser_source_files = context.GetRelevantSources(PREPARSER_SOURCES)
preparser_objs = context.ConfigureObject(env, preparser_source_files)
# Create snapshot if necessary. For cross compilation you should either
# do without snapshots and take the performance hit or you should build a
# host VM with the simulator=arm and snapshot=on options and then take the
# resulting snapshot.cc file from obj/release and put it in the src
# directory. Then rebuild the VM with the cross compiler and specify
# snapshot=nobuild on the scons command line.
empty_snapshot_obj = context.ConfigureObject(env, 'snapshot-empty.cc')
mksnapshot_env = env.Copy()
mksnapshot_env.Replace(**context.flags['mksnapshot'])
mksnapshot_src = 'mksnapshot.cc'
mksnapshot = mksnapshot_env.Program('mksnapshot', [mksnapshot_src, libraries_obj, experimental_libraries_obj, non_snapshot_files, empty_snapshot_obj], PDB='mksnapshot.exe.pdb')
if context.use_snapshot:
if context.build_snapshot:
snapshot_cc = env.Snapshot('snapshot.cc', mksnapshot, LOGFILE=File('snapshot.log').abspath)
else:
snapshot_cc = 'snapshot.cc'
snapshot_obj = context.ConfigureObject(env, snapshot_cc, CPPPATH=['.'])
else:
snapshot_obj = empty_snapshot_obj
library_objs = [non_snapshot_files, libraries_obj, experimental_libraries_obj, snapshot_obj]
return (library_objs, d8_objs, [mksnapshot], preparser_objs)
(library_objs, d8_objs, mksnapshot, preparser_objs) = ConfigureObjectFiles()
Return('library_objs d8_objs mksnapshot preparser_objs')
Reference in New Issue View Git Blame Copy Permalink