src/tint/resolver/source_variable_test.cc - dawn - Git at Google

 // Copyright 2022 The Tint Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 #include "src/tint/resolver/resolver.h"

 #include "src/tint/resolver/resolver_test_helper.h"
 #include "src/tint/sem/index_accessor_expression.h"
 #include "src/tint/sem/member_accessor_expression.h"

 using namespace tint::number_suffixes;  // NOLINT

 namespace tint::resolver {
 namespace {

 class ResolverSourceVariableTest : public ResolverTest {};

 TEST_F(ResolverSourceVariableTest, GlobalPrivateVar) {
     auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kPrivate);
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, GlobalWorkgroupVar) {
     auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kWorkgroup);
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, GlobalStorageVar) {
     auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kStorage, GroupAndBinding(0, 0));
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, GlobalUniformVar) {
     auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kUniform, GroupAndBinding(0, 0));
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, GlobalTextureVar) {
     auto* a = GlobalVar("a", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
                         ast::StorageClass::kNone, GroupAndBinding(0, 0));
     auto* expr = Expr(a);
     WrapInFunction(Call("textureDimensions", expr));

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, GlobalOverride) {
     auto* a = Override("a", ty.f32(), Expr(1_f));
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, GlobalConst) {
     auto* a = GlobalConst("a", ty.f32(), Expr(1_f));
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 // TODO(crbug.com/tint/1580): Remove when module-scope 'let' is removed
 TEST_F(ResolverSourceVariableTest, GlobalLet) {
     auto* a = GlobalLet("a", ty.f32(), Expr(1_f));
     auto* expr = Expr(a);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, FunctionVar) {
     auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
     auto* expr = Expr(a);
     WrapInFunction(a, expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, FunctionLet) {
     auto* a = Let("a", ty.f32(), Expr(1_f));
     auto* expr = Expr(a);
     WrapInFunction(a, expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, Parameter) {
     auto* a = Param("a", ty.f32());
     auto* expr = Expr(a);
     Func("foo", {a}, ty.void_(), {WrapInStatement(expr)});

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, PointerParameter) {
     // fn foo(a : ptr<function, f32>)
     // {
     //   let b = a;
     // }
     auto* param = Param("a", ty.pointer(ty.f32(), ast::StorageClass::kFunction));
     auto* expr_param = Expr(param);
     auto* let = Let("b", nullptr, expr_param);
     auto* expr_let = Expr("b");
     Func("foo", {param}, ty.void_(), {WrapInStatement(let), WrapInStatement(expr_let)});

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_param = Sem().Get(param);
     EXPECT_EQ(Sem().Get(expr_param)->SourceVariable(), sem_param);
     EXPECT_EQ(Sem().Get(expr_let)->SourceVariable(), sem_param);
 }

 TEST_F(ResolverSourceVariableTest, VarCopyVar) {
     // {
     //   var a : f32;
     //   var b = a;
     // }
     auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
     auto* expr_a = Expr(a);
     auto* b = Var("b", ty.f32(), ast::StorageClass::kNone, expr_a);
     auto* expr_b = Expr(b);
     WrapInFunction(a, b, expr_b);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     auto* sem_b = Sem().Get(b);
     EXPECT_EQ(Sem().Get(expr_a)->SourceVariable(), sem_a);
     EXPECT_EQ(Sem().Get(expr_b)->SourceVariable(), sem_b);
 }

 TEST_F(ResolverSourceVariableTest, LetCopyVar) {
     // {
     //   var a : f32;
     //   let b = a;
     // }
     auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
     auto* expr_a = Expr(a);
     auto* b = Let("b", ty.f32(), expr_a);
     auto* expr_b = Expr(b);
     WrapInFunction(a, b, expr_b);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     auto* sem_b = Sem().Get(b);
     EXPECT_EQ(Sem().Get(expr_a)->SourceVariable(), sem_a);
     EXPECT_EQ(Sem().Get(expr_b)->SourceVariable(), sem_b);
 }

 TEST_F(ResolverSourceVariableTest, ThroughIndexAccessor) {
     // var<private> a : array<f32, 4u>;
     // {
     //   a[2i]
     // }
     auto* a = GlobalVar("a", ty.array(ty.f32(), 4_u), ast::StorageClass::kPrivate);
     auto* expr = IndexAccessor(a, 2_i);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, ThroughMemberAccessor) {
     // struct S { f : f32 }
     // var<private> a : S;
     // {
     //   a.f
     // }
     auto* S = Structure("S", {Member("f", ty.f32())});
     auto* a = GlobalVar("a", ty.Of(S), ast::StorageClass::kPrivate);
     auto* expr = MemberAccessor(a, "f");
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, ThroughPointers) {
     // var<private> a : f32;
     // {
     //   let a_ptr1 = &*&a;
     //   let a_ptr2 = &*a_ptr1;
     // }
     auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kPrivate);
     auto* address_of_1 = AddressOf(a);
     auto* deref_1 = Deref(address_of_1);
     auto* address_of_2 = AddressOf(deref_1);
     auto* a_ptr1 = Let("a_ptr1", nullptr, address_of_2);
     auto* deref_2 = Deref(a_ptr1);
     auto* address_of_3 = AddressOf(deref_2);
     auto* a_ptr2 = Let("a_ptr2", nullptr, address_of_3);
     WrapInFunction(a_ptr1, a_ptr2);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     auto* sem_a = Sem().Get(a);
     EXPECT_EQ(Sem().Get(address_of_1)->SourceVariable(), sem_a);
     EXPECT_EQ(Sem().Get(address_of_2)->SourceVariable(), sem_a);
     EXPECT_EQ(Sem().Get(address_of_3)->SourceVariable(), sem_a);
     EXPECT_EQ(Sem().Get(deref_1)->SourceVariable(), sem_a);
     EXPECT_EQ(Sem().Get(deref_2)->SourceVariable(), sem_a);
 }

 TEST_F(ResolverSourceVariableTest, Literal) {
     auto* expr = Expr(1_f);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
 }

 TEST_F(ResolverSourceVariableTest, FunctionReturnValue) {
     auto* expr = Call("min", 1_f, 2_f);
     WrapInFunction(expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
 }

 TEST_F(ResolverSourceVariableTest, BinaryExpression) {
     auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
     auto* expr = Add(a, Expr(1_f));
     WrapInFunction(a, expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
 }

 TEST_F(ResolverSourceVariableTest, UnaryExpression) {
     auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
     auto* expr = create<ast::UnaryOpExpression>(ast::UnaryOp::kNegation, Expr(a));
     WrapInFunction(a, expr);

     EXPECT_TRUE(r()->Resolve()) << r()->error();

     EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
 }

 }  // namespace
 }  // namespace tint::resolver
	// Copyright 2022 The Tint Authors.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	#include "src/tint/resolver/resolver.h"

	#include "src/tint/resolver/resolver_test_helper.h"
	#include "src/tint/sem/index_accessor_expression.h"
	#include "src/tint/sem/member_accessor_expression.h"

	using namespace tint::number_suffixes; // NOLINT

	namespace tint::resolver {
	namespace {

	class ResolverSourceVariableTest : public ResolverTest {};

	TEST_F(ResolverSourceVariableTest, GlobalPrivateVar) {
	auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kPrivate);
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, GlobalWorkgroupVar) {
	auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kWorkgroup);
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, GlobalStorageVar) {
	auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kStorage, GroupAndBinding(0, 0));
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, GlobalUniformVar) {
	auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kUniform, GroupAndBinding(0, 0));
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, GlobalTextureVar) {
	auto* a = GlobalVar("a", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
	ast::StorageClass::kNone, GroupAndBinding(0, 0));
	auto* expr = Expr(a);
	WrapInFunction(Call("textureDimensions", expr));

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, GlobalOverride) {
	auto* a = Override("a", ty.f32(), Expr(1_f));
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, GlobalConst) {
	auto* a = GlobalConst("a", ty.f32(), Expr(1_f));
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	// TODO(crbug.com/tint/1580): Remove when module-scope 'let' is removed
	TEST_F(ResolverSourceVariableTest, GlobalLet) {
	auto* a = GlobalLet("a", ty.f32(), Expr(1_f));
	auto* expr = Expr(a);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, FunctionVar) {
	auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
	auto* expr = Expr(a);
	WrapInFunction(a, expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, FunctionLet) {
	auto* a = Let("a", ty.f32(), Expr(1_f));
	auto* expr = Expr(a);
	WrapInFunction(a, expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, Parameter) {
	auto* a = Param("a", ty.f32());
	auto* expr = Expr(a);
	Func("foo", {a}, ty.void_(), {WrapInStatement(expr)});

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, PointerParameter) {
	// fn foo(a : ptr<function, f32>)
	// {
	// let b = a;
	// }
	auto* param = Param("a", ty.pointer(ty.f32(), ast::StorageClass::kFunction));
	auto* expr_param = Expr(param);
	auto* let = Let("b", nullptr, expr_param);
	auto* expr_let = Expr("b");
	Func("foo", {param}, ty.void_(), {WrapInStatement(let), WrapInStatement(expr_let)});

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_param = Sem().Get(param);
	EXPECT_EQ(Sem().Get(expr_param)->SourceVariable(), sem_param);
	EXPECT_EQ(Sem().Get(expr_let)->SourceVariable(), sem_param);
	}

	TEST_F(ResolverSourceVariableTest, VarCopyVar) {
	// {
	// var a : f32;
	// var b = a;
	// }
	auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
	auto* expr_a = Expr(a);
	auto* b = Var("b", ty.f32(), ast::StorageClass::kNone, expr_a);
	auto* expr_b = Expr(b);
	WrapInFunction(a, b, expr_b);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	auto* sem_b = Sem().Get(b);
	EXPECT_EQ(Sem().Get(expr_a)->SourceVariable(), sem_a);
	EXPECT_EQ(Sem().Get(expr_b)->SourceVariable(), sem_b);
	}

	TEST_F(ResolverSourceVariableTest, LetCopyVar) {
	// {
	// var a : f32;
	// let b = a;
	// }
	auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
	auto* expr_a = Expr(a);
	auto* b = Let("b", ty.f32(), expr_a);
	auto* expr_b = Expr(b);
	WrapInFunction(a, b, expr_b);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	auto* sem_b = Sem().Get(b);
	EXPECT_EQ(Sem().Get(expr_a)->SourceVariable(), sem_a);
	EXPECT_EQ(Sem().Get(expr_b)->SourceVariable(), sem_b);
	}

	TEST_F(ResolverSourceVariableTest, ThroughIndexAccessor) {
	// var<private> a : array<f32, 4u>;
	// {
	// a[2i]
	// }
	auto* a = GlobalVar("a", ty.array(ty.f32(), 4_u), ast::StorageClass::kPrivate);
	auto* expr = IndexAccessor(a, 2_i);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, ThroughMemberAccessor) {
	// struct S { f : f32 }
	// var<private> a : S;
	// {
	// a.f
	// }
	auto* S = Structure("S", {Member("f", ty.f32())});
	auto* a = GlobalVar("a", ty.Of(S), ast::StorageClass::kPrivate);
	auto* expr = MemberAccessor(a, "f");
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, ThroughPointers) {
	// var<private> a : f32;
	// {
	// let a_ptr1 = &*&a;
	// let a_ptr2 = &*a_ptr1;
	// }
	auto* a = GlobalVar("a", ty.f32(), ast::StorageClass::kPrivate);
	auto* address_of_1 = AddressOf(a);
	auto* deref_1 = Deref(address_of_1);
	auto* address_of_2 = AddressOf(deref_1);
	auto* a_ptr1 = Let("a_ptr1", nullptr, address_of_2);
	auto* deref_2 = Deref(a_ptr1);
	auto* address_of_3 = AddressOf(deref_2);
	auto* a_ptr2 = Let("a_ptr2", nullptr, address_of_3);
	WrapInFunction(a_ptr1, a_ptr2);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	auto* sem_a = Sem().Get(a);
	EXPECT_EQ(Sem().Get(address_of_1)->SourceVariable(), sem_a);
	EXPECT_EQ(Sem().Get(address_of_2)->SourceVariable(), sem_a);
	EXPECT_EQ(Sem().Get(address_of_3)->SourceVariable(), sem_a);
	EXPECT_EQ(Sem().Get(deref_1)->SourceVariable(), sem_a);
	EXPECT_EQ(Sem().Get(deref_2)->SourceVariable(), sem_a);
	}

	TEST_F(ResolverSourceVariableTest, Literal) {
	auto* expr = Expr(1_f);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
	}

	TEST_F(ResolverSourceVariableTest, FunctionReturnValue) {
	auto* expr = Call("min", 1_f, 2_f);
	WrapInFunction(expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
	}

	TEST_F(ResolverSourceVariableTest, BinaryExpression) {
	auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
	auto* expr = Add(a, Expr(1_f));
	WrapInFunction(a, expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
	}

	TEST_F(ResolverSourceVariableTest, UnaryExpression) {
	auto* a = Var("a", ty.f32(), ast::StorageClass::kNone);
	auto* expr = create<ast::UnaryOpExpression>(ast::UnaryOp::kNegation, Expr(a));
	WrapInFunction(a, expr);

	EXPECT_TRUE(r()->Resolve()) << r()->error();

	EXPECT_EQ(Sem().Get(expr)->SourceVariable(), nullptr);
	}

	} // namespace
	} // namespace tint::resolver