#!/usr/bin/env python3
"""计算 Generator struct 中元素 105/106/107/108 的字节偏移，验证 this_adjust=776 一致性"""
import re

p = r'd:\Users\TermiNexus\Desktop\TransPyC\TransPyV\output\0bef502adb69f851.ll'
for line in open(p, encoding='utf-8', errors='replace'):
    if '"e1ea7eaf63a9c3d1.Generator" = type' in line:
        s = line.strip()
        start = s.index('{')
        end = s.rindex('}')
        body = s[start + 1:end].strip()
        # 顶层按逗号分割（元素不含嵌套花括号）
        elems = [e.strip() for e in body.split(',')]
        print('elements count:', len(elems))

        def size_align(t):
            t = t.strip()
            if t.endswith('*') or t == 'i64' or t == 'double':
                return (8, 8)
            if t == 'i32' or t.startswith('float'):
                return (4, 4)
            if t == 'i16':
                return (2, 2)
            if t == 'i1' or t == 'i8':
                return (1, 1)
            return (8, 8)

        off = 0
        for i, e in enumerate(elems):
            sz, al = size_align(e)
            if al > 1:
                off = ((off + al - 1) // al) * al
            if i in (104, 105, 106, 107, 108, 109):
                print(f'  idx={i} type={e[:60]} byte_offset={off}')
            off += sz
        print('approx total:', off)
        break