forked from OSchip/llvm-project
35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
//==- Regions.cpp - Abstract memory locations ----------------------*- C++ -*-//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines Region and its subclasses. Regions represent abstract
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// memory locations.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Analysis/PathSensitive/Regions.h"
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#include "clang/Analysis/PathSensitive/BasicValueFactory.h"
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#include "clang/AST/ASTContext.h"
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using namespace clang;
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RegionExtent VarRegion::getExtent(BasicValueFactory& BV) const {
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QualType T = getDecl()->getType();
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// FIXME: Add support for VLAs. This may require passing in additional
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// information, or tracking a different region type.
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if (!T.getTypePtr()->isConstantSizeType())
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return UnknownExtent();
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ASTContext& C = BV.getContext();
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assert (!T->isObjCInterfaceType()); // @interface not a possible VarDecl type.
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assert (T != C.VoidTy); // void not a possible VarDecl type.
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return IntExtent(BV.getValue(C.getTypeSize(T), C.VoidPtrTy));
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}
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