gdstring.lib gen script

gen.py

import subprocess

out = subprocess.check_output('dumpbin /exports libcocos2d.dll').decode()

# get just the symbol names
out = out[out.find('RVA'):].splitlines()[2:]
lines = []
for line in out:
    if not line.strip(): break
    lines.append(line.split()[-1])

symbols = []
for line in lines:
    if not line.startswith('?'): continue
    if line.startswith('??'): continue
    if '@cocos2d@' not in line and '@DS_Dictionary@' not in line: continue
    # if '@fmt@' in line: continue
    # if 'base64EncodeEnc' not in line: continue

    # skip ccstring::create, since we define it in geode
    if 'create@CCString' in line: continue
 
    if 'char_traits' in line:
        symbols.append(line)

std_string_mangle = "V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@"
gd_string_mangle = "Vstring@gd@@"

vector_allocator_mangle = "$allocator@D@2@@std@@@2@@std"
vector_allocator_repl =   "$allocator@D@2@@std@@@std@@@std"

make_symbol = lambda x: x.replace(vector_allocator_mangle, vector_allocator_repl).replace(std_string_mangle, gd_string_mangle)

with open('gdstring.asm', 'w') as file:
    file.write('section .text\n')
    for symbol in symbols:
        file.write(f'extern {symbol}\n')
        new_symbol = make_symbol(symbol)
        file.write(f'extern {new_symbol}\n')

    for symbol in symbols:
        new_symbol = make_symbol(symbol)

        file.write(f'{new_symbol}: \n\tjmp {symbol}\n\n')


import os

print_run = lambda x: (print(x), os.system(x))
print_run('nasm -f win32 gdstring.asm -o gdstring.obj')
print_run('link /lib gdstring.obj')

needs dumpbin, link and nasm. run in the same dir as libcocos2d.dll