forked from OSchip/llvm-project
56 lines
2.0 KiB
C++
56 lines
2.0 KiB
C++
//===--- DeclRefExprUtils.h - clang-tidy-------------------------*- 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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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_DECLREFEXPRUTILS_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_DECLREFEXPRUTILS_H
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Type.h"
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#include "llvm/ADT/SmallPtrSet.h"
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namespace clang {
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namespace tidy {
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namespace utils {
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namespace decl_ref_expr {
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/// \brief Returns true if all ``DeclRefExpr`` to the variable within ``Stmt``
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/// do not modify it.
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///
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/// Returns ``true`` if only const methods or operators are called on the
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/// variable or the variable is a const reference or value argument to a
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/// ``callExpr()``.
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bool isOnlyUsedAsConst(const VarDecl &Var, const Stmt &Stmt,
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ASTContext &Context);
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// Returns set of all DeclRefExprs to VarDecl in Stmt.
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llvm::SmallPtrSet<const DeclRefExpr *, 16>
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allDeclRefExprs(const VarDecl &VarDecl, const Stmt &Stmt, ASTContext &Context);
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// Returns set of all DeclRefExprs where VarDecl is guaranteed to be accessed in
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// a const fashion.
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llvm::SmallPtrSet<const DeclRefExpr *, 16>
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constReferenceDeclRefExprs(const VarDecl &VarDecl, const Stmt &Stmt,
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ASTContext &Context);
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// Returns true if DeclRefExpr is the argument of a copy-constructor call expr.
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bool isCopyConstructorArgument(const DeclRefExpr &DeclRef, const Stmt &Stmt,
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ASTContext &Context);
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// Returns true if DeclRefExpr is the argument of a copy-assignment operator
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// call expr.
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bool isCopyAssignmentArgument(const DeclRefExpr &DeclRef, const Stmt &Stmt,
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ASTContext &Context);
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} // namespace decl_ref_expr
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} // namespace utils
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} // namespace tidy
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} // namespace clang
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_DECLREFEXPRUTILS_H
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