clang
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include
clang
AST
ASTLambda.h
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//===--- 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
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
clang::isLambdaCallOperator
bool isLambdaCallOperator(const CXXMethodDecl *MD)
Definition:
ASTLambda.h:27
clang::isGenericLambdaCallOperatorSpecialization
bool isGenericLambdaCallOperatorSpecialization(const CXXMethodDecl *MD)
Definition:
ASTLambda.h:38
clang::DeclContext
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition:
DeclBase.h:1376
clang::CXXConversionDecl
Represents a C++ conversion function within a class.
Definition:
DeclCXX.h:2764
DeclCXX.h
clang::getLambdaAwareParentOfDeclContext
DeclContext * getLambdaAwareParentOfDeclContext(DeclContext *DC)
Definition:
ASTLambda.h:80
clang::CXXRecordDecl::isGenericLambda
bool isGenericLambda() const
Determine whether this class describes a generic lambda function object (i.e.
Definition:
DeclCXX.cpp:1494
clang::FunctionTemplateDecl
Declaration of a template function.
Definition:
DeclTemplate.h:979
DeclTemplate.h
clang::FunctionDecl::getOverloadedOperator
OverloadedOperatorKind getOverloadedOperator() const
getOverloadedOperator - Which C++ overloaded operator this function represents, if any.
Definition:
Decl.cpp:3718
clang::isGenericLambdaCallOperatorOrStaticInvokerSpecialization
bool isGenericLambdaCallOperatorOrStaticInvokerSpecialization(const DeclContext *DC)
Definition:
ASTLambda.h:67
clang::CXXRecordDecl
Represents a C++ struct/union/class.
Definition:
DeclCXX.h:254
clang::DeclContext::getParent
DeclContext * getParent()
getParent - Returns the containing DeclContext.
Definition:
DeclBase.h:1902
clang::Decl
Decl - This represents one declaration (or definition), e.g.
Definition:
DeclBase.h:83
clang
Definition:
CalledOnceCheck.h:17
clang::CXXRecordDecl::isLambda
bool isLambda() const
Determine whether this class describes a lambda function object.
Definition:
DeclCXX.h:999
clang::FunctionDecl::isFunctionTemplateSpecialization
bool isFunctionTemplateSpecialization() const
Determine whether this function is a function template specialization.
Definition:
Decl.h:2726
clang::getLambdaStaticInvokerName
StringRef getLambdaStaticInvokerName()
Definition:
ASTLambda.h:22
clang::isLambdaConversionOperator
bool isLambdaConversionOperator(CXXConversionDecl *C)
Definition:
ASTLambda.h:47
clang::CXXMethodDecl::getParent
const CXXRecordDecl * getParent() const
Return the parent of this method declaration, which is the class in which this method is defined.
Definition:
DeclCXX.h:2096
clang::CXXMethodDecl
Represents a static or instance method of a struct/union/class.
Definition:
DeclCXX.h:1981
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