984fad243d
This reverts commit cb935f345683194e42e6e883d79c5a16479acd74. Discussion in D68708 advises that green dragon is being briskly refurbished, and it's good to have this patch up testing it.
104 lines
2.7 KiB
Python
104 lines
2.7 KiB
Python
# 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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"""Classes which are used to represent debugger steps."""
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import json
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from collections import OrderedDict
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from typing import List
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from enum import Enum
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from dex.dextIR.FrameIR import FrameIR
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from dex.dextIR.LocIR import LocIR
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from dex.dextIR.ProgramState import ProgramState
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class StopReason(Enum):
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BREAKPOINT = 0
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STEP = 1
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PROGRAM_EXIT = 2
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ERROR = 3
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OTHER = 4
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class StepKind(Enum):
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FUNC = 0
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FUNC_EXTERNAL = 1
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FUNC_UNKNOWN = 2
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VERTICAL_FORWARD = 3
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SAME = 4
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VERTICAL_BACKWARD = 5
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UNKNOWN = 6
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HORIZONTAL_FORWARD = 7
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HORIZONTAL_BACKWARD = 8
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class StepIR:
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"""A debugger step.
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Args:
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watches (OrderedDict): { expression (str), result (ValueIR) }
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"""
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def __init__(self,
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step_index: int,
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stop_reason: StopReason,
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frames: List[FrameIR],
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step_kind: StepKind = None,
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watches: OrderedDict = None,
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program_state: ProgramState = None):
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self.step_index = step_index
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self.step_kind = step_kind
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self.stop_reason = stop_reason
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self.program_state = program_state
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if frames is None:
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frames = []
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self.frames = frames
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if watches is None:
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watches = {}
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self.watches = watches
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def __str__(self):
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try:
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frame = self.current_frame
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frame_info = (frame.function, frame.loc.path, frame.loc.lineno,
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frame.loc.column)
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except AttributeError:
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frame_info = (None, None, None, None)
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step_info = (self.step_index, ) + frame_info + (
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str(self.stop_reason), str(self.step_kind),
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[w for w in self.watches])
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return '{}{}'.format('. ' * (self.num_frames - 1),
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json.dumps(step_info))
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@property
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def num_frames(self):
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return len(self.frames)
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@property
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def current_frame(self):
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if not len(self.frames):
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return None
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return self.frames[0]
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@property
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def current_function(self):
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try:
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return self.current_frame.function
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except AttributeError:
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return None
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@property
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def current_location(self):
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try:
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return self.current_frame.loc
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except AttributeError:
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return LocIR(path=None, lineno=None, column=None)
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