forked from OSchip/llvm-project
81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
//===---- CheckerHelpers.cpp - Helper functions for checkers ----*- 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 several static functions for use in checkers.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerHelpers.h"
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#include "clang/AST/Expr.h"
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// Recursively find any substatements containing macros
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bool clang::ento::containsMacro(const Stmt *S) {
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if (S->getLocStart().isMacroID())
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return true;
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if (S->getLocEnd().isMacroID())
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return true;
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for (Stmt::const_child_iterator I = S->child_begin(); I != S->child_end();
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++I)
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if (const Stmt *child = *I)
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if (containsMacro(child))
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return true;
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return false;
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}
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// Recursively find any substatements containing enum constants
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bool clang::ento::containsEnum(const Stmt *S) {
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const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(S);
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if (DR && isa<EnumConstantDecl>(DR->getDecl()))
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return true;
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for (Stmt::const_child_iterator I = S->child_begin(); I != S->child_end();
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++I)
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if (const Stmt *child = *I)
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if (containsEnum(child))
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return true;
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return false;
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}
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// Recursively find any substatements containing static vars
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bool clang::ento::containsStaticLocal(const Stmt *S) {
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const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(S);
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if (DR)
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if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl()))
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if (VD->isStaticLocal())
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return true;
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for (Stmt::const_child_iterator I = S->child_begin(); I != S->child_end();
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++I)
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if (const Stmt *child = *I)
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if (containsStaticLocal(child))
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return true;
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return false;
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}
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// Recursively find any substatements containing __builtin_offsetof
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bool clang::ento::containsBuiltinOffsetOf(const Stmt *S) {
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if (isa<OffsetOfExpr>(S))
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return true;
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for (Stmt::const_child_iterator I = S->child_begin(); I != S->child_end();
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++I)
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if (const Stmt *child = *I)
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if (containsBuiltinOffsetOf(child))
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return true;
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return false;
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}
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