cb3e9eec5f
This is a small refactor of how DeducedType and it's derived types are represented. The different deduction kinds are spelled out in an enum, and how this is tracked is simplified, to allow easier profiling. How these types are constructed and canonicalized is also brought more in line with how it works for the other types. This fixes a crash reported here: https://github.com/llvm/llvm-project/issues/167513#issuecomment-3692962115
144 lines
5.1 KiB
C++
144 lines
5.1 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -std=c++2a -ast-dump -ast-dump-decl-types -ast-dump-filter Foo %s | FileCheck -strict-whitespace %s
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// Test with serialization:
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// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown -emit-pch -o %t %s
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// RUN: %clang_cc1 -x c++ -std=c++20 -triple x86_64-unknown-unknown -include-pch %t \
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// RUN: -ast-dump-all -ast-dump-decl-types -ast-dump-filter Foo /dev/null \
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// RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
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// RUN: | FileCheck --strict-whitespace %s
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template <typename T>
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concept unary_concept = true;
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template <typename T, typename U>
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concept binary_concept = true;
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template <typename... Ts>
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concept variadic_concept = true;
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template <typename T>
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struct Foo {
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// CHECK: TemplateTypeParmDecl {{.*}} referenced Concept {{.*}} 'binary_concept'
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} <col:13, col:31> 'bool' Concept {{.*}} 'binary_concept'
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// CHECK-NEXT: |-ImplicitConceptSpecializationDecl {{.*}} <line:{{.+}}:9> col:9
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// CHECK-NEXT: | |-TemplateArgument type 'R'
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// CHECK-NEXT: | | `-TemplateTypeParmType {{.*}} 'R' dependent {{.*}}depth 1 index 0
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// CHECK-NEXT: | | `-TemplateTypeParm {{.*}} 'R'
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// CHECK-NEXT: | `-TemplateArgument type 'int'
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// CHECK-NEXT: | `-BuiltinType {{.*}} 'int'
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// CHECK-NEXT: |-TemplateArgument {{.*}} type 'R'
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// CHECK-NEXT: | `-TemplateTypeParmType {{.*}} 'R'
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// CHECK-NEXT: | `-TemplateTypeParm {{.*}} 'R'
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// CHECK-NEXT: `-TemplateArgument {{.*}} type 'int'
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// CHECK-NEXT: `-BuiltinType {{.*}} 'int'
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template <binary_concept<int> R>
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Foo(R);
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// CHECK: TemplateTypeParmDecl {{.*}} referenced Concept {{.*}} 'unary_concept'
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} <col:13> 'bool'
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// CHECK-NEXT: |-ImplicitConceptSpecializationDecl {{.*}} <line:{{.+}}:9> col:9
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// CHECK-NEXT: | `-TemplateArgument type 'R'
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// CHECK-NEXT: | `-TemplateTypeParmType {{.*}} 'R' dependent {{.*}}depth 1 index 0
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// CHECK-NEXT: | `-TemplateTypeParm {{.*}} 'R'
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template <unary_concept R>
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Foo(R);
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// CHECK: FunctionTemplateDecl {{.*}} <line:[[@LINE+1]]:3, line:[[@LINE+2]]:39> {{.*}} Foo<T>
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template <typename R>
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Foo(R, int) requires unary_concept<R>;
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// CHECK: FunctionTemplateDecl {{.*}} <line:[[@LINE+1]]:3, line:[[@LINE+3]]:3> {{.*}} Foo<T>
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template <typename R>
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Foo(R, char) requires unary_concept<R> {
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}
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// CHECK: CXXFoldExpr {{.*}} <col:13, col:29>
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template <variadic_concept... Ts>
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Foo();
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// CHECK: CXXFoldExpr {{.*}} <col:13, col:34>
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template <variadic_concept<int>... Ts>
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Foo();
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// CHECK:InjectedClassNameType
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// CHECK-NEXT: CXXRecord {{.*}} 'Foo'
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};
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namespace GH82628 {
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namespace ns {
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template <typename T>
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concept C = true;
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} // namespace ns
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using ns::C;
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// CHECK: ConceptDecl {{.*}} Foo
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// CHECK-NEXT: |-TemplateTypeParmDecl {{.*}} typename depth 0 index 0 T
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} UsingShadow {{.*}} 'C'
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template <typename T>
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concept Foo = C<T>;
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// CHECK: TemplateTypeParmDecl {{.*}} Concept {{.*}} 'C' (UsingShadow {{.*}} 'C')
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// CHECK: QualType
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// CHECK-NEXT: `-BuiltinType {{.*}} 'bool'
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template <C T>
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constexpr bool FooVar = false;
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// CHECK: ConceptSpecializationExpr {{.*}} UsingShadow {{.*}} 'C'
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// CHECK: QualType
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// CHECK-NEXT: `-BuiltinType {{.*}} 'bool'
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template <typename T> requires C<T>
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constexpr bool FooVar2 = true;
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// CHECK: SimpleRequirement
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} UsingShadow {{.*}} 'C'
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// CHECK: QualType
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// CHECK-NEXT: `-BuiltinType {{.*}} 'bool'
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template <typename T> requires requires (T) { C<T>; }
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constexpr bool FooVar3 = true;
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// CHECK: NonTypeTemplateParmDecl
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} UsingShadow {{.*}} 'C'
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// CHECK: QualType
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// CHECK-NEXT: `-BuiltinType {{.*}} 'bool'
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template <C auto T>
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constexpr bool FooVar4 = bool(T());
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// CHECK: FunctionTemplateDecl
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// CHECK-NEXT: |-TemplateTypeParmDecl {{.*}} Concept {{.*}} 'C' (UsingShadow {{.*}} 'C') depth 0 index 0 ... T
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// CHECK: NonTypeTemplateParmDecl {{.*}} depth 0 index 1 U
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} UsingShadow {{.*}} 'C'
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// CHECK: |-TemplateTypeParmDecl {{.*}} Concept {{.*}} 'C' (UsingShadow {{.*}} 'C') depth 0 index 2 V:auto
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// CHECK: FunctionProtoType
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// CHECK: `-Concept {{.*}} 'C'
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// CHECK: `-TemplateTypeParm {{.*}} 'V:auto'
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template <C... T, C auto U>
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auto FooFunc(C auto V) -> C decltype(auto) {
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// FIXME: TypeLocs inside of the function body cannot be dumped via -ast-dump for now.
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// See clang-tools-extra/clangd/unittests/SelectionTests.cpp:SelectionTest.UsingConcepts for their checkings.
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C auto W = V;
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return W;
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}
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}
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namespace constraint_auto_params {
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template <class T, class K>
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concept C = true;
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template<class T>
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void g(C<T> auto Foo) {}
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// CHECK: TemplateTypeParmDecl {{.*}} depth 0 index 1 Foo:auto
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// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} <col:8, col:11>
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}
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namespace constraint_auto_return {
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template <class T, class K> concept D = true;
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template<class T> D<T> auto Foo() { return T(); }
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// CHECK: AutoType {{.*}} 'D<T> auto' dependent deduced-as-dependent
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} // namespace constraint_auto_return
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