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#!/usr/bin/python
'''
Simple tool to run the demangler.
(C) 2010 Alon Zakai, MIT licensed
Usage: demangler.py FILENAME SPLITTER
Make sure you define ~/.emscripten, and fill it with something like
JS_ENGINE=[os.path.expanduser('~/Dev/v8/d8')]
JS_ENGINE_PARAMS=['--']
or
JS_ENGINE=[os.path.expanduser('~/Dev/tracemonkey/js/src/js')]
JS_ENGINE_PARAMS=[]
'''
import os, sys, subprocess, re
__rootpath__ = os.path.abspath(os.path.dirname(__file__))
def path_from_root(*pathelems):
return os.path.join(os.path.sep, *(__rootpath__.split(os.sep)[:-1] + list(pathelems)))
exec(open(path_from_root('tools', 'shared.py'), 'r').read())
data = open(sys.argv[1], 'r').readlines()
SEEN = {}
for line in data:
if len(line) < 4: continue
m = re.match('^ function (?P<func>[^(]+)\(.*', line) # generated code
if not m:
m = re.match('^ + _*\d+: (?P<func>[^ ]+) \(\d+.*', line) # profiling output
if not m: continue
func = m.groups('func')[0]
if func in SEEN: continue
SEEN[func] = True
cleaned = run_js(JS_ENGINE, path_from_root('third_party', 'gcc_demangler.js'), [func[1:]])
if cleaned is None: continue
if 'Fatal exception' in cleaned: continue
cleaned = cleaned[1:-2]
if cleaned == '(null)': continue
if ' throw ' in cleaned: continue
print func, '=', cleaned
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