50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
//===--- SemaUtil.h - Utility functions for semantic analysis -------------===//
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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 provides a few static inline functions that are useful for
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// performing semantic analysis.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_SEMA_UTIL_H
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#define LLVM_CLANG_SEMA_UTIL_H
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#include "clang/AST/Expr.h"
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namespace clang {
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/// Utility method to plow through parenthesis and casts.
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static inline Expr* IgnoreParenCasts(Expr* E) {
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while(true) {
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if (ParenExpr* P = dyn_cast<ParenExpr>(E))
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E = P->getSubExpr();
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else if (CastExpr* P = dyn_cast<CastExpr>(E))
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E = P->getSubExpr();
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else if (ImplicitCastExpr* P = dyn_cast<ImplicitCastExpr>(E))
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E = P->getSubExpr();
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else
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return E;
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}
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}
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/// Utility method to determine if a CallExpr is a call to a builtin.
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static inline bool isCallBuiltin(CallExpr* cexp) {
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Expr* sub = IgnoreParenCasts(cexp->getCallee());
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if (DeclRefExpr* E = dyn_cast<DeclRefExpr>(sub))
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if (E->getDecl()->getIdentifier()->getBuiltinID() > 0)
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return true;
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return false;
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}
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} // end namespace clang
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#endif
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