b8064374b2
Since we don't unique specializations for concepts, we can just instantiate them with the sugared template arguments, at negligible cost. If we don't track their specializations, we can't resugar them later anyway, and that would be more expensive than just instantiating them sugared in the first place since it would require an additional pass. Signed-off-by: Matheus Izvekov <mizvekov@gmail.com> Differential Revision: https://reviews.llvm.org/D136566
62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -std=c++2a -ast-dump -ast-dump-filter Foo %s | FileCheck -strict-whitespace %s
|
|
|
|
// Test with serialization:
|
|
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-unknown -emit-pch -o %t %s
|
|
// RUN: %clang_cc1 -x c++ -std=c++20 -triple x86_64-unknown-unknown -include-pch %t \
|
|
// RUN: -ast-dump-all -ast-dump-filter Foo /dev/null \
|
|
// RUN: | FileCheck --strict-whitespace %s
|
|
|
|
template <typename T>
|
|
concept unary_concept = true;
|
|
|
|
template <typename T, typename U>
|
|
concept binary_concept = true;
|
|
|
|
template <typename... Ts>
|
|
concept variadic_concept = true;
|
|
|
|
template <typename T>
|
|
struct Foo {
|
|
// CHECK: TemplateTypeParmDecl {{.*}} referenced Concept {{.*}} 'binary_concept'
|
|
// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} <col:13, col:31> 'bool' Concept {{.*}} 'binary_concept'
|
|
// CHECK-NEXT: |-ImplicitConceptSpecializationDecl {{.*}} <line:13:9> col:9
|
|
// CHECK-NEXT: | |-TemplateArgument type 'R'
|
|
// CHECK-NEXT: | | `-TemplateTypeParmType {{.*}} 'R' dependent {{.*}}depth 1 index 0
|
|
// CHECK-NEXT: | | `-TemplateTypeParm {{.*}} 'R'
|
|
// CHECK-NEXT: | `-TemplateArgument type 'int'
|
|
// CHECK-NEXT: | `-BuiltinType {{.*}} 'int'
|
|
// CHECK-NEXT: |-TemplateArgument {{.*}} type 'R'
|
|
// CHECK-NEXT: | `-TemplateTypeParmType {{.*}} 'R'
|
|
// CHECK-NEXT: | `-TemplateTypeParm {{.*}} 'R'
|
|
// CHECK-NEXT: `-TemplateArgument {{.*}} type 'int'
|
|
// CHECK-NEXT: `-BuiltinType {{.*}} 'int'
|
|
template <binary_concept<int> R>
|
|
Foo(R);
|
|
|
|
// CHECK: TemplateTypeParmDecl {{.*}} referenced Concept {{.*}} 'unary_concept'
|
|
// CHECK-NEXT: `-ConceptSpecializationExpr {{.*}} <col:13> 'bool'
|
|
// CHECK-NEXT: |-ImplicitConceptSpecializationDecl {{.*}} <line:10:9> col:9
|
|
// CHECK-NEXT: | `-TemplateArgument type 'R'
|
|
// CHECK-NEXT: | `-TemplateTypeParmType {{.*}} 'R' dependent {{.*}}depth 1 index 0
|
|
// CHECK-NEXT: | `-TemplateTypeParm {{.*}} 'R'
|
|
template <unary_concept R>
|
|
Foo(R);
|
|
|
|
// CHECK: FunctionTemplateDecl {{.*}} <line:[[@LINE+1]]:3, line:[[@LINE+2]]:39> {{.*}} Foo<T>
|
|
template <typename R>
|
|
Foo(R, int) requires unary_concept<R>;
|
|
|
|
// CHECK: FunctionTemplateDecl {{.*}} <line:[[@LINE+1]]:3, line:[[@LINE+3]]:3> {{.*}} Foo<T>
|
|
template <typename R>
|
|
Foo(R, char) requires unary_concept<R> {
|
|
}
|
|
|
|
// CHECK: CXXFoldExpr {{.*}} <col:13, col:29>
|
|
template <variadic_concept... Ts>
|
|
Foo();
|
|
|
|
// CHECK: CXXFoldExpr {{.*}} <col:13, col:34>
|
|
template <variadic_concept<int>... Ts>
|
|
Foo();
|
|
};
|