0f92c113a3
DexUnreachable is a useful tool for specifying that lines shouldn't be stepped on. Right now they have to be placed in the source file; lets allow them to be placed instead in a detached .dex file, by adding on_line and line-range keyword arguments to the command. Differential Revision: https://reviews.llvm.org/D115449
53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
# DExTer : Debugging Experience Tester
|
|
# ~~~~~~ ~ ~~ ~ ~~
|
|
#
|
|
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
# See https://llvm.org/LICENSE.txt for license information.
|
|
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
|
|
from dex.command.CommandBase import CommandBase
|
|
from dex.dextIR import ValueIR
|
|
|
|
|
|
class DexUnreachable(CommandBase):
|
|
"""Expect the source line this is found on will never be stepped on to.
|
|
|
|
DexUnreachable()
|
|
|
|
See Commands.md for more info.
|
|
"""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
if len(args) != 0:
|
|
raise TypeError("DexUnreachable takes no positional arguments")
|
|
if 'on_line' in kwargs:
|
|
on_line = kwargs.pop('on_line')
|
|
self._from_line = on_line
|
|
self._to_line = on_line
|
|
elif 'from_line' in kwargs and 'to_line' in kwargs:
|
|
self._from_line = kwargs.pop('from_line')
|
|
self._to_line = kwargs.pop('to_line')
|
|
elif 'from_line' in kwargs or 'to_line' in kwargs:
|
|
raise TypeError("Must provide both from_line and to_line to DexUnreachable")
|
|
|
|
if len(kwargs) > 0:
|
|
raise TypeError("Unexpected kwargs {}".format(kwargs.keys()))
|
|
super(DexUnreachable, self).__init__()
|
|
pass
|
|
|
|
@staticmethod
|
|
def get_name():
|
|
return __class__.__name__
|
|
|
|
def eval(self, step_info):
|
|
# If we're ever called, at all, then we're evaluating a line that has
|
|
# been marked as unreachable. Which means a failure.
|
|
vir = ValueIR(expression="Unreachable",
|
|
value="True", type_name=None,
|
|
error_string=None,
|
|
could_evaluate=True,
|
|
is_optimized_away=True,
|
|
is_irretrievable=False)
|
|
return {'DexUnreachable' : vir}
|