6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
//===--- ASTLambda.h - Lambda Helper Functions --------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file provides some common utility functions for processing
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/// Lambda related AST Constructs.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_AST_ASTLAMBDA_H
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#define LLVM_CLANG_AST_ASTLAMBDA_H
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclTemplate.h"
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namespace clang {
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inline StringRef getLambdaStaticInvokerName() {
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return "__invoke";
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}
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// This function returns true if M is a specialization, a template,
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// or a non-generic lambda call operator.
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inline bool isLambdaCallOperator(const CXXMethodDecl *MD) {
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const CXXRecordDecl *LambdaClass = MD->getParent();
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if (!LambdaClass || !LambdaClass->isLambda()) return false;
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return MD->getOverloadedOperator() == OO_Call;
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}
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inline bool isLambdaCallOperator(const DeclContext *DC) {
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if (!DC || !isa<CXXMethodDecl>(DC)) return false;
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return isLambdaCallOperator(cast<CXXMethodDecl>(DC));
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}
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inline bool isLambdaCallWithExplicitObjectParameter(const DeclContext *DC) {
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return isLambdaCallOperator(DC) &&
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cast<CXXMethodDecl>(DC)->isExplicitObjectMemberFunction();
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}
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inline bool isLambdaCallWithImplicitObjectParameter(const DeclContext *DC) {
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return isLambdaCallOperator(DC) &&
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// FIXME: Checking for a null type is not great
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// but lambdas with invalid captures or whose closure parameter list
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// have not fully been parsed may have a call operator whose type is
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// null.
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!cast<CXXMethodDecl>(DC)->getType().isNull() &&
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!cast<CXXMethodDecl>(DC)->isExplicitObjectMemberFunction();
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}
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inline bool isGenericLambdaCallOperatorSpecialization(const CXXMethodDecl *MD) {
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if (!MD) return false;
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const CXXRecordDecl *LambdaClass = MD->getParent();
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if (LambdaClass && LambdaClass->isGenericLambda())
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return isLambdaCallOperator(MD) &&
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MD->isFunctionTemplateSpecialization();
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return false;
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}
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inline bool isLambdaConversionOperator(CXXConversionDecl *C) {
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return C ? C->getParent()->isLambda() : false;
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}
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inline bool isLambdaConversionOperator(Decl *D) {
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if (!D) return false;
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if (CXXConversionDecl *Conv = dyn_cast<CXXConversionDecl>(D))
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return isLambdaConversionOperator(Conv);
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if (FunctionTemplateDecl *F = dyn_cast<FunctionTemplateDecl>(D))
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if (CXXConversionDecl *Conv =
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dyn_cast_or_null<CXXConversionDecl>(F->getTemplatedDecl()))
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return isLambdaConversionOperator(Conv);
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return false;
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}
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inline bool isGenericLambdaCallOperatorSpecialization(DeclContext *DC) {
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return isGenericLambdaCallOperatorSpecialization(
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dyn_cast<CXXMethodDecl>(DC));
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}
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inline bool isGenericLambdaCallOperatorOrStaticInvokerSpecialization(
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const DeclContext *DC) {
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const auto *MD = dyn_cast<CXXMethodDecl>(DC);
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if (!MD) return false;
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const CXXRecordDecl *LambdaClass = MD->getParent();
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if (LambdaClass && LambdaClass->isGenericLambda())
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return (isLambdaCallOperator(MD) || MD->isLambdaStaticInvoker()) &&
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MD->isFunctionTemplateSpecialization();
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return false;
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}
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// This returns the parent DeclContext ensuring that the correct
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// parent DeclContext is returned for Lambdas
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inline DeclContext *getLambdaAwareParentOfDeclContext(DeclContext *DC) {
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if (isLambdaCallOperator(DC))
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return DC->getParent()->getParent();
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else
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return DC->getParent();
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}
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} // clang
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#endif
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