1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
#!/usr/bin/python
import os, sys, subprocess
COMPILER = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'src', 'compiler.js')
CONFIG_FILE = os.path.expanduser('~/.emscripten')
JS_ENGINE = None
if os.path.exists(CONFIG_FILE):
exec(open(CONFIG_FILE, 'r').read())
def emscripten(filename, settings):
data = open(filename, 'r').read()
cwd = os.getcwd()
os.chdir(os.path.dirname(COMPILER))
subprocess.Popen(JS_ENGINE + [COMPILER], stdin=subprocess.PIPE).communicate(settings+'\n'+data)[0]
os.chdir(cwd)
if __name__ == '__main__':
if sys.argv.__len__() not in [2,3,4]:
print '''
Emscripten usage: emscripten.py INFILE [PATH-TO-JS-ENGINE] [SETTINGS]
INFILE must be in human-readable LLVM disassembly form (i.e., as text,
not binary).
PATH-TO-JS-ENGINE should be a path to the JavaScript engine used to
run the compiler (which is in JavaScript itself). You can later use
the same engine to run the code, or another one, that is a separate
issue. If you do not provide this parameter, you should define
JS_ENGINE = ... in a file at ~/.emscripten.
SETTINGS is an optional set of compiler settings, overriding the defaults.
'''
else:
if len(sys.argv) >= 3:
JS_ENGINE = [sys.argv[2]]
emscripten(sys.argv[1], sys.argv[3] if len(sys.argv) == 4 else "{}")
|
