debug_completion.py•2.88 kB
#!/usr/bin/env python3
"""
调试补全问题的脚本
"""
try:
import readline
except ImportError:
# Windows 系统使用 pyreadline3
try:
import pyreadline3 as readline
except ImportError:
# 如果都没有 readline 功能，创建一个兼容层
class MockReadline:
def get_line_buffer(self): return ""
def redisplay(self): pass
def set_completer(self, completer): pass
def set_completer_delims(self, delims): pass
def parse_and_bind(self, binding): pass
def read_history_file(self, filename): pass
def write_history_file(self, filename): pass
readline = MockReadline()
class DebugCompleter:
def __init__(self):
self.commands = ['test', 'call', 'breakpoint', 'list_bp', 'help', 'quit']
def complete(self, text, state):
print(f"\nDEBUG: complete called with text='{text}', state={state}")
if state == 0:
# 第一次调用，生成补全列表
line = readline.get_line_buffer()
print(f"DEBUG: line_buffer='{line}'")
self.matches = self._get_matches(line, text)
print(f"DEBUG: matches={self.matches}")
try:
result = self.matches[state]
print(f"DEBUG: returning '{result}' for state {state}")
return result
except IndexError:
print(f"DEBUG: no more matches for state {state}")
return None
def _get_matches(self, line, text):
"""获取匹配的补全项"""
matches = []
# 如果是空行或只输入了部分命令
if not line.strip() or ' ' not in line:
# 补全命令
matches.extend([cmd for cmd in self.commands if cmd.startswith(text)])
print(f"DEBUG: command completion for '{text}': {matches}")
else:
print(f"DEBUG: parameter completion not implemented")
return matches
def test_completion():
"""测试补全问题"""
completer = DebugCompleter()
readline.set_completer(completer.complete)
readline.set_completer_delims('\t\n') # 只用tab和换行符作为分隔符
readline.parse_and_bind('tab: complete')
print("测试补全问题:")
print("输入单个字符如 'l' 然后按 Tab，应该看到补全调试信息")
print("如果看到 'llist_bp' 这样的问题，就是我们要修复的bug")
print("按 Ctrl+C 退出")
try:
while True:
try:
line = input("debug> ")
print(f"最终输入: '{line}'")
print(f" 长度: {len(line)}")
print(f" 字符: {[c for c in line]}")
except EOFError:
break
except KeyboardInterrupt:
print("\n退出测试")
if __name__ == "__main__":
test_completion()