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ykxmz/_build/fix_json_depth.py
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# -*- coding: utf-8 -*-
"""修 Json.java 的深度计数 bug —— 它让"功能页永远连不上"。
我加 MAX_DEPTH 时只在 readObject/readArray 里做了 depth++,
**没有对应的 depth--**。于是 depth 单调递增:
一个回复里只要累计解析过 65 个对象(不是嵌套深度,是总数!)就抛
"JSON 嵌套太深"。
而 RemoteClient.readLoop 里对解析失败是 `continue`(静默丢弃),
所以客户端等不到回复,一路超时到报"连不上电脑"。
受影响的面:
feature_list 152 个功能对象 -> 永远超时(用户报的"功能页连不上")
proc_list 200 个进程对象 -> 超时
audio_list 音乐目录多文件 -> 超时
voice_list / ping / info -> 对象少,正常
修法:把真正的解析逻辑拆成 inner 方法,用 try/finally 保证进出配对。
"""
from __future__ import annotations
import sys
from pathlib import Path
JSON = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote\android\src"
r"\com\lanremote\watch\Json.java")
def main() -> int:
text = JSON.read_text(encoding="utf-8")
# ---- readObject:拆成 wrapper + inner ----
old_obj = " private Map<String, Object> readObject() {"
new_obj = ''' private Map<String, Object> readObject() {
if (depth >= MAX_DEPTH) {
throw new IllegalArgumentException("JSON 嵌套太深");
}
depth++;
try {
return readObjectInner();
} finally {
// 必须配对减去!只加不减会让计数器单调递增,
// 于是"回复里有 65 个对象"就被误判成嵌套太深,
// 而调用方会静默丢弃这条回复 -> 表现为"连不上电脑"。
depth--;
}
}
private Map<String, Object> readObjectInner() {'''
if old_obj not in text:
print(" [失败] 找不到 readObject")
return 1
text = text.replace(old_obj, new_obj, 1)
print(" readObject: 已拆成 wrapper + inner")
# readObjectInner 里那个 depth++ 要去掉(已经挪到 wrapper)
marker = " pos++; // '{'\n depth++;\n"
if marker in text:
text = text.replace(marker,
" pos++; // '{'\n", 1)
print(" readObjectInner: 去掉多余的 depth++")
# ---- readArray 同样处理 ----
old_arr = " private List<Object> readArray() {"
new_arr = ''' private List<Object> readArray() {
if (depth >= MAX_DEPTH) {
throw new IllegalArgumentException("JSON 嵌套太深");
}
depth++;
try {
return readArrayInner();
} finally {
depth--;
}
}
private List<Object> readArrayInner() {'''
if old_arr not in text:
print(" [失败] 找不到 readArray")
return 1
text = text.replace(old_arr, new_arr, 1)
print(" readArray: 已拆成 wrapper + inner")
marker2 = " pos++; // '['\n depth++;\n"
if marker2 in text:
text = text.replace(marker2,
" pos++; // '['\n", 1)
print(" readArrayInner: 去掉多余的 depth++")
# ---- readValue 里那个检查可以保留(wrapper 里已经查得更严)----
JSON.write_text(text, encoding="utf-8")
# 检查有没有残留的裸 depth++
lines = text.splitlines()
stray = [i + 1 for i, l in enumerate(lines)
if l.strip() == "depth++;" and "try {" not in lines[i - 1]]
print(f" 残留的裸 depth++: {stray if stray else '无'}")
print()
count_inc = text.count("depth++;")
count_dec = text.count("depth--;")
print(f" depth++ 出现 {count_inc} 次,depth-- 出现 {count_dec} 次")
print(f" {'配对正确' if count_inc == count_dec else '!! 不配对,还有问题'}")
return 0 if count_inc == count_dec else 1
if __name__ == "__main__":
sys.exit(main())