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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===--- ASTLambda.h - Lambda Helper Functions --------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | /// |
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| 9 | /// \file |
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| 10 | /// This file provides some common utility functions for processing |
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| 11 | /// Lambda related AST Constructs. |
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| 12 | /// |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |||
| 15 | #ifndef LLVM_CLANG_AST_ASTLAMBDA_H |
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| 16 | #define LLVM_CLANG_AST_ASTLAMBDA_H |
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| 17 | |||
| 18 | #include "clang/AST/DeclCXX.h" |
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| 19 | #include "clang/AST/DeclTemplate.h" |
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| 20 | |||
| 21 | namespace clang { |
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| 22 | inline StringRef getLambdaStaticInvokerName() { |
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| 23 | return "__invoke"; |
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| 24 | } |
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| 25 | // This function returns true if M is a specialization, a template, |
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| 26 | // or a non-generic lambda call operator. |
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| 27 | inline bool isLambdaCallOperator(const CXXMethodDecl *MD) { |
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| 28 | const CXXRecordDecl *LambdaClass = MD->getParent(); |
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| 29 | if (!LambdaClass || !LambdaClass->isLambda()) return false; |
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| 30 | return MD->getOverloadedOperator() == OO_Call; |
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| 31 | } |
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| 32 | |||
| 33 | inline bool isLambdaCallOperator(const DeclContext *DC) { |
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| 34 | if (!DC || !isa<CXXMethodDecl>(DC)) return false; |
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| 35 | return isLambdaCallOperator(cast<CXXMethodDecl>(DC)); |
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| 36 | } |
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| 37 | |||
| 38 | inline bool isGenericLambdaCallOperatorSpecialization(const CXXMethodDecl *MD) { |
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| 39 | if (!MD) return false; |
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| 40 | const CXXRecordDecl *LambdaClass = MD->getParent(); |
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| 41 | if (LambdaClass && LambdaClass->isGenericLambda()) |
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| 42 | return isLambdaCallOperator(MD) && |
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| 43 | MD->isFunctionTemplateSpecialization(); |
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| 44 | return false; |
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| 45 | } |
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| 46 | |||
| 47 | inline bool isLambdaConversionOperator(CXXConversionDecl *C) { |
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| 48 | return C ? C->getParent()->isLambda() : false; |
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| 49 | } |
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| 50 | |||
| 51 | inline bool isLambdaConversionOperator(Decl *D) { |
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| 52 | if (!D) return false; |
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| 53 | if (CXXConversionDecl *Conv = dyn_cast<CXXConversionDecl>(D)) |
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| 54 | return isLambdaConversionOperator(Conv); |
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| 55 | if (FunctionTemplateDecl *F = dyn_cast<FunctionTemplateDecl>(D)) |
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| 56 | if (CXXConversionDecl *Conv = |
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| 57 | dyn_cast_or_null<CXXConversionDecl>(F->getTemplatedDecl())) |
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| 58 | return isLambdaConversionOperator(Conv); |
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| 59 | return false; |
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| 60 | } |
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| 61 | |||
| 62 | inline bool isGenericLambdaCallOperatorSpecialization(DeclContext *DC) { |
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| 63 | return isGenericLambdaCallOperatorSpecialization( |
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| 64 | dyn_cast<CXXMethodDecl>(DC)); |
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| 65 | } |
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| 66 | |||
| 67 | inline bool isGenericLambdaCallOperatorOrStaticInvokerSpecialization( |
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| 68 | const DeclContext *DC) { |
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| 69 | const auto *MD = dyn_cast<CXXMethodDecl>(DC); |
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| 70 | if (!MD) return false; |
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| 71 | const CXXRecordDecl *LambdaClass = MD->getParent(); |
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| 72 | if (LambdaClass && LambdaClass->isGenericLambda()) |
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| 73 | return (isLambdaCallOperator(MD) || MD->isLambdaStaticInvoker()) && |
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| 74 | MD->isFunctionTemplateSpecialization(); |
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| 75 | return false; |
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| 76 | } |
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| 77 | |||
| 78 | // This returns the parent DeclContext ensuring that the correct |
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| 79 | // parent DeclContext is returned for Lambdas |
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| 80 | inline DeclContext *getLambdaAwareParentOfDeclContext(DeclContext *DC) { |
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| 81 | if (isLambdaCallOperator(DC)) |
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| 82 | return DC->getParent()->getParent(); |
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| 83 | else |
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| 84 | return DC->getParent(); |
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| 85 | } |
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| 86 | |||
| 87 | } // clang |
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| 88 | |||
| 89 | #endif |