# ------------------------------------------------------------------------------
# CodeHawk C Analyzer
# Author: Henny Sipma
# ------------------------------------------------------------------------------
# The MIT License (MIT)
#
# Copyright (c) 2017-2020 Kestrel Technology LLC
# Copyright (c) 2020-2022 Henny B. Sipma
# Copyright (c) 2023-2024 Aarno Labs LLC
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# SOFTWARE.
# ------------------------------------------------------------------------------
"""Assumption on the return value of a function."""
from typing import List, TYPE_CHECKING
from chc.api.InterfaceDictionaryRecord import InterfaceDictionaryRecord
import chc.util.IndexedTable as IT
if TYPE_CHECKING:
from chc.api.InterfaceDictionary import InterfaceDictionary
from chc.api.XPredicate import XPredicate
from chc.app.CVarInfo import CVarInfo
[docs]class PostAssume(InterfaceDictionaryRecord):
"""Assumption on the postcondition of a function.
* args[0]: function vid (callee)
* args[1]: index of predicate in interface dictionary
"""
def __init__(
self, ifd: "InterfaceDictionary", ixval: IT.IndexedTableValue
) -> None:
InterfaceDictionaryRecord.__init__(self, ifd, ixval)
@property
def callee(self) -> "CVarInfo":
return self.ifd.cfile.get_global_varinfo(self.args[0])
@property
def postcondition(self) -> "XPredicate":
return self.ifd.get_xpredicate(int(self.args[1]))
def __str__(self) -> str:
return str(self.callee) + ":" + str(self.postcondition)