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Issue 29333474: Issue 4125 - [emscripten] Convert filter classes to C++ (Closed)
Patch Set: Renamed bindings.h into bindings.ipp Created Feb. 23, 2016, 9:30 p.m.
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1 #!/usr/bin/env python
2
3 import json
4 import os
5 import re
6 import subprocess
7 import warnings
8
9 EMSCRIPTEN_PATH = '../emscripten'
10 SOURCE_DIR = './compiled'
11 SOURCE_FILES = [
12 os.path.join(SOURCE_DIR, f)
13 for f in os.listdir(SOURCE_DIR)
14 if f.endswith('.cpp')
15 ]
16 BINDINGS_FILE = os.path.join(SOURCE_DIR, 'bindings.cpp')
17 BINDINGS_GENERATOR = os.path.join(SOURCE_DIR, 'bindings.cpp.js')
18 BINDINGS_OUTPUT = os.path.join(SOURCE_DIR, 'bindings.js')
19 COMPILER_OUTPUT = './lib/compiled.js'
20 GENERATION_PARAMS = {
21 'SHELL_FILE': "'%s'" % os.path.abspath(os.path.join(SOURCE_DIR, 'shell.js')),
22 'ASM_JS': 2, # "almost asm"
23 'TOTAL_MEMORY': 16*1024*1024,
24 'TOTAL_STACK': 1*1024*1024,
25 'ALLOW_MEMORY_GROWTH': 1,
26 'NO_EXIT_RUNTIME': 1,
27 'NO_DYNAMIC_EXECUTION': 1,
28 'NO_BROWSER': 1,
29 'NO_FILESYSTEM': 1,
30 'INVOKE_RUN': 0,
31 'NODE_STDOUT_FLUSH_WORKAROUND': 0,
32 }
33 DEFINES = []
34 ADDITIONAL_PARAMS = ['-O3', '-m32', '-std=gnu++14', '--memory-init-file', '0',
35 '--emit-symbol-map']
36
37 def getenv():
38 path = []
39 env = {}
40 output = subprocess.check_output([
41 '/bin/bash', '-c', os.path.join(EMSCRIPTEN_PATH, 'emsdk_env.sh')])
42 for line in output.splitlines():
43 match = re.search(r'^\s*PATH\s*\+=\s*(.*)', line)
44 if match:
45 path.append(match.group(1))
46 match = re.search(r'^\s*(\w+)\s*=\s*(.*)', line)
47 if match:
48 env[match.group(1)] = match.group(2)
49 env['PATH'] = ':'.join([os.environ['PATH']] + path)
50 return env
51
52 def generate_bindings(env):
53 params = [os.path.join(env['EMSCRIPTEN'], 'emcc'), BINDINGS_FILE,
54 '-o', BINDINGS_GENERATOR, '-std=gnu++14', '-DPRINT_BINDINGS',
55 '-s', 'WARN_ON_UNDEFINED_SYMBOLS=0',
56 ]
57 subprocess.check_call(params, env=env)
58
59 node = subprocess.check_output('which node', env=env, shell=True).strip();
60 with open(BINDINGS_OUTPUT, 'w') as file:
61 subprocess.check_call([node, BINDINGS_GENERATOR], env=env, stdout=file)
62
63 def run_compiler(env):
64 params = [
65 os.path.join(env['EMSCRIPTEN'], 'emcc'),
66 '-o', COMPILER_OUTPUT,
67 '--post-js', BINDINGS_OUTPUT,
68 ]
69 params.extend(SOURCE_FILES)
70 params.extend('-D' + flag for flag in DEFINES)
71 for key, value in GENERATION_PARAMS.iteritems():
72 params.extend(['-s', '%s=%s' % (key, str(value))])
73 params.extend(ADDITIONAL_PARAMS)
74 subprocess.check_call(params, env=env)
75
76 if __name__ == '__main__':
77 env = getenv()
78 generate_bindings(env)
79 run_compiler(env)
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