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118 lines
3.7 KiB
118 lines
3.7 KiB
# DExTer : Debugging Experience Tester
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# ~~~~~~ ~ ~~ ~ ~~
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""Set of data classes for representing the complete debug program state at a
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fixed point in execution.
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"""
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import os
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from collections import OrderedDict
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from typing import List
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class SourceLocation:
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def __init__(self, path: str = None, lineno: int = None, column: int = None):
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if path:
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path = os.path.normcase(path)
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self.path = path
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self.lineno = lineno
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self.column = column
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def __str__(self):
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return '{}({}:{})'.format(self.path, self.lineno, self.column)
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def match(self, other) -> bool:
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"""Returns true iff all the properties that appear in `self` have the
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same value in `other`, but not necessarily vice versa.
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"""
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if not other or not isinstance(other, SourceLocation):
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return False
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if self.path and (self.path != other.path):
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return False
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if self.lineno and (self.lineno != other.lineno):
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return False
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if self.column and (self.column != other.column):
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return False
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return True
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class StackFrame:
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def __init__(self,
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function: str = None,
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is_inlined: bool = None,
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location: SourceLocation = None,
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watches: OrderedDict = None):
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if watches is None:
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watches = {}
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self.function = function
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self.is_inlined = is_inlined
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self.location = location
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self.watches = watches
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def __str__(self):
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return '{}{}: {} | {}'.format(
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self.function,
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' (inlined)' if self.is_inlined else '',
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self.location,
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{k: str(self.watches[k]) for k in self.watches})
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def match(self, other) -> bool:
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"""Returns true iff all the properties that appear in `self` have the
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same value in `other`, but not necessarily vice versa.
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"""
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if not other or not isinstance(other, StackFrame):
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return False
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if self.location and not self.location.match(other.location):
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return False
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if self.watches:
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for name in iter(self.watches):
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try:
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if isinstance(self.watches[name], dict):
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for attr in iter(self.watches[name]):
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if (getattr(other.watches[name], attr, None) !=
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self.watches[name][attr]):
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return False
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else:
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if other.watches[name].value != self.watches[name]:
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return False
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except KeyError:
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return False
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return True
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class ProgramState:
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def __init__(self, frames: List[StackFrame] = None):
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self.frames = frames
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def __str__(self):
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return '\n'.join(map(
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lambda enum: 'Frame {}: {}'.format(enum[0], enum[1]),
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enumerate(self.frames)))
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def match(self, other) -> bool:
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"""Returns true iff all the properties that appear in `self` have the
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same value in `other`, but not necessarily vice versa.
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"""
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if not other or not isinstance(other, ProgramState):
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return False
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if self.frames:
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for idx, frame in enumerate(self.frames):
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try:
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if not frame.match(other.frames[idx]):
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return False
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except (IndexError, KeyError):
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return False
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return True
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