"""计算 Generator struct 关键字段偏移，验证 this_adjust=536 是否正确。"""
import re

f = r'D:\Users\TermiNexus\Desktop\TransPyC\TransPyV\output\e1ea7eaf63a9c3d1.ll'
elems = []
with open(f, encoding='utf-8', errors='replace') as fh:
    for ln in fh:
        if 'e1ea7eaf63a9c3d1.Generator" = type' in ln:
            body = ln.split('= type {')[1].rstrip().rstrip('}')
            elems = [x.strip() for x in body.split(',')]
            break

off = 0
offs = []
for t in elems:
    align = 4 if t == 'i32' else 8
    sz = 4 if t == 'i32' else 8
    if off % align:
        off += align - (off % align)
    offs.append(off)
    off += sz
print('struct 元素数:', len(elems))
for idx in (89, 90, 105, 108):
    print(f'struct[{idx}]={elems[idx]} 偏移={offs[idx]}')

# ClassGenBase 独立 struct 前 26 元素字节偏移（ExceptionNames 块内偏移）
CGB = ['i8*','i8*','i32','i64*','i64*','i64*','i64*','i32','i64*','i64*','i64*','i64*','i64*','i32',
       'i64*','i64*','i32','i32*','i8*','i8*','i32','i32','i8*','i8*','i64*','i32']
c = 0
for t in CGB:
    a = 4 if t == 'i32' else 8
    s = 4 if t == 'i32' else 8
    if c % a: c += a - (c % a)
    c += s
print('ClassGenBase ExceptionNames 块内偏移:', c)
print('this_adjust(536) + 块内偏移 =', 536 + c, ' vs struct[90] ExceptionNames 偏移', offs[90] if len(offs) > 90 else 'N/A')