clang 20.0.0git
ASTLambda.h
Go to the documentation of this file.
1//===--- ASTLambda.h - Lambda Helper Functions --------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8///
9/// \file
10/// This file provides some common utility functions for processing
11/// Lambda related AST Constructs.
12///
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_CLANG_AST_ASTLAMBDA_H
16#define LLVM_CLANG_AST_ASTLAMBDA_H
17
18#include "clang/AST/DeclCXX.h"
20
21namespace clang {
22inline StringRef getLambdaStaticInvokerName() {
23 return "__invoke";
24}
25// This function returns true if M is a specialization, a template,
26// or a non-generic lambda call operator.
27inline bool isLambdaCallOperator(const CXXMethodDecl *MD) {
28 const CXXRecordDecl *LambdaClass = MD->getParent();
29 if (!LambdaClass || !LambdaClass->isLambda()) return false;
30 return MD->getOverloadedOperator() == OO_Call;
31}
32
33inline bool isLambdaCallOperator(const DeclContext *DC) {
34 if (!DC || !isa<CXXMethodDecl>(DC)) return false;
35 return isLambdaCallOperator(cast<CXXMethodDecl>(DC));
36}
37
39 return isLambdaCallOperator(DC) &&
40 cast<CXXMethodDecl>(DC)->isExplicitObjectMemberFunction();
41}
42
44 return isLambdaCallOperator(DC) &&
45 // FIXME: Checking for a null type is not great
46 // but lambdas with invalid captures or whose closure parameter list
47 // have not fully been parsed may have a call operator whose type is
48 // null.
49 !cast<CXXMethodDecl>(DC)->getType().isNull() &&
50 !cast<CXXMethodDecl>(DC)->isExplicitObjectMemberFunction();
51}
52
54 if (!MD) return false;
55 const CXXRecordDecl *LambdaClass = MD->getParent();
56 if (LambdaClass && LambdaClass->isGenericLambda())
57 return isLambdaCallOperator(MD) &&
59 return false;
60}
61
63 return C ? C->getParent()->isLambda() : false;
64}
65