49b1e38e4b
At this point this is largely cosmetic, but it opens the door to replace ProgramStateRef with a smart pointer that more eagerly acts in the role of reclaiming unused ProgramState objects. llvm-svn: 149081
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
//== CheckerContext.cpp - Context info for path-sensitive checkers-----------=//
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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 CheckerContext that provides contextual info for
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// path-sensitive checkers.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
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#include "clang/Basic/Builtins.h"
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#include "clang/Lex/Lexer.h"
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using namespace clang;
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using namespace ento;
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const FunctionDecl *CheckerContext::getCalleeDecl(const CallExpr *CE) const {
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ProgramStateRef State = getState();
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const Expr *Callee = CE->getCallee();
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SVal L = State->getSVal(Callee, Pred->getLocationContext());
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return L.getAsFunctionDecl();
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}
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StringRef CheckerContext::getCalleeName(const FunctionDecl *FunDecl) const {
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if (!FunDecl)
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return StringRef();
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IdentifierInfo *funI = FunDecl->getIdentifier();
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if (!funI)
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return StringRef();
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return funI->getName();
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}
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bool CheckerContext::isCLibraryFunction(const FunctionDecl *FD,
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StringRef Name){
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// To avoid false positives (Ex: finding user defined functions with
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// similar names), only perform fuzzy name matching when it's a builtin.
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// Using a string compare is slow, we might want to switch on BuiltinID here.
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unsigned BId = FD->getBuiltinID();
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if (BId != 0) {
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ASTContext &Context = getASTContext();
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StringRef BName = Context.BuiltinInfo.GetName(BId);
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if (StringRef(BName).find(Name) != StringRef::npos)
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return true;
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}
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if (FD->isExternC() && FD->getIdentifier()->getName().equals(Name))
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return true;
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return false;
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}
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StringRef CheckerContext::getMacroNameOrSpelling(SourceLocation &Loc) {
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if (Loc.isMacroID())
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return Lexer::getImmediateMacroName(Loc, getSourceManager(),
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getLangOptions());
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SmallVector<char, 16> buf;
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return Lexer::getSpelling(Loc, buf, getSourceManager(), getLangOptions());
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}
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