src/tint/writer/msl/generator_impl_initializer_test.cc - tint - Git at Google

 // Copyright 2020 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 "gmock/gmock.h"
 #include "src/tint/writer/msl/test_helper.h"

 using namespace tint::number_suffixes;  // NOLINT

 namespace tint::writer::msl {
 namespace {

 using ::testing::HasSubstr;

 using MslGeneratorImplTest = TestHelper;

 TEST_F(MslGeneratorImplTest, EmitInitializer_Bool) {
     WrapInFunction(Expr(false));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("false"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Int) {
     WrapInFunction(Expr(-12345_i));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("-12345"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_UInt) {
     WrapInFunction(Expr(56779_u));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("56779u"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Float) {
     // Use a number close to 1<<30 but whose decimal representation ends in 0.
     WrapInFunction(Expr(f32((1 << 30) - 4)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("1073741824.0f"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_F16) {
     Enable(builtin::Extension::kF16);

     // Use a number close to 1<<16 but whose decimal representation ends in 0.
     WrapInFunction(Expr(f16((1 << 15) - 8)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("32752.0h"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Float) {
     WrapInFunction(Call<f32>(-1.2e-5_f));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("-0.000012f"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_F16) {
     Enable(builtin::Extension::kF16);

     WrapInFunction(Call<f16>(-1.2e-3_h));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("-0.00119972229h"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Bool) {
     WrapInFunction(Call<bool>(true));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("true"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Int) {
     WrapInFunction(Call<i32>(-12345_i));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("-12345"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Uint) {
     WrapInFunction(Call<u32>(12345_u));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("12345u"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_F32) {
     WrapInFunction(vec3<f32>(1_f, 2_f, 3_f));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("float3(1.0f, 2.0f, 3.0f)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_F16) {
     Enable(builtin::Extension::kF16);

     WrapInFunction(vec3<f16>(1_h, 2_h, 3_h));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("half3(1.0h, 2.0h, 3.0h)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_Empty_F32) {
     WrapInFunction(vec3<f32>());

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("float3(0.0f)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_Empty_F16) {
     Enable(builtin::Extension::kF16);

     WrapInFunction(vec3<f16>());

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("half3(0.0h)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F32_Literal) {
     WrapInFunction(vec3<f32>(2_f));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("float3(2.0f)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F16_Literal) {
     Enable(builtin::Extension::kF16);

     WrapInFunction(vec3<f16>(2_h));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("half3(2.0h)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F32_Var) {
     auto* var = Var("v", Expr(2_f));
     auto* cast = vec3<f32>(var);
     WrapInFunction(var, cast);

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr(R"(float v = 2.0f;
   float3 const tint_symbol = float3(v);)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F16_Var) {
     Enable(builtin::Extension::kF16);

     auto* var = Var("v", Expr(2_h));
     auto* cast = vec3<f16>(var);
     WrapInFunction(var, cast);

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr(R"(half v = 2.0h;
   half3 const tint_symbol = half3(v);)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_Bool) {
     WrapInFunction(vec3<bool>(true));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("bool3(true)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_Int) {
     WrapInFunction(vec3<i32>(2_i));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("int3(2)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_UInt) {
     WrapInFunction(vec3<u32>(2_u));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("uint3(2u)"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_F32) {
     WrapInFunction(mat2x3<f32>(vec3<f32>(1_f, 2_f, 3_f), vec3<f32>(3_f, 4_f, 5_f)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(),
                 HasSubstr("float2x3(float3(1.0f, 2.0f, 3.0f), float3(3.0f, 4.0f, 5.0f))"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_F16) {
     Enable(builtin::Extension::kF16);

     WrapInFunction(mat2x3<f16>(vec3<f16>(1_h, 2_h, 3_h), vec3<f16>(3_h, 4_h, 5_h)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(),
                 HasSubstr("half2x3(half3(1.0h, 2.0h, 3.0h), half3(3.0h, 4.0h, 5.0h))"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Complex_F32) {
     // mat4x4<f32>(
     //     vec4<f32>(2.0f, 3.0f, 4.0f, 8.0f),
     //     vec4<f32>(),
     //     vec4<f32>(7.0f),
     //     vec4<f32>(vec4<f32>(42.0f, 21.0f, 6.0f, -5.0f)),
     //   );
     auto* vector_literal =
         vec4<f32>(Expr(f32(2.0)), Expr(f32(3.0)), Expr(f32(4.0)), Expr(f32(8.0)));
     auto* vector_zero_init = vec4<f32>();
     auto* vector_single_scalar_init = vec4<f32>(Expr(f32(7.0)));
     auto* vector_identical_init =
         vec4<f32>(vec4<f32>(Expr(f32(42.0)), Expr(f32(21.0)), Expr(f32(6.0)), Expr(f32(-5.0))));

     auto* initializer = mat4x4<f32>(vector_literal, vector_zero_init, vector_single_scalar_init,
                                     vector_identical_init);

     WrapInFunction(initializer);

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(), HasSubstr("float4x4(float4(2.0f, 3.0f, 4.0f, 8.0f), float4(0.0f), "
                                         "float4(7.0f), float4(42.0f, 21.0f, 6.0f, -5.0f))"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Complex_F16) {
     // mat4x4<f16>(
     //     vec4<f16>(2.0h, 3.0h, 4.0h, 8.0h),
     //     vec4<f16>(),
     //     vec4<f16>(7.0h),
     //     vec4<f16>(vec4<f16>(42.0h, 21.0h, 6.0h, -5.0h)),
     //   );
     Enable(builtin::Extension::kF16);

     auto* vector_literal =
         vec4<f16>(Expr(f16(2.0)), Expr(f16(3.0)), Expr(f16(4.0)), Expr(f16(8.0)));
     auto* vector_zero_init = vec4<f16>();
     auto* vector_single_scalar_init = vec4<f16>(Expr(f16(7.0)));
     auto* vector_identical_init =
         vec4<f16>(vec4<f16>(Expr(f16(42.0)), Expr(f16(21.0)), Expr(f16(6.0)), Expr(f16(-5.0))));

     auto* initializer = mat4x4<f16>(vector_literal, vector_zero_init, vector_single_scalar_init,
                                     vector_identical_init);

     WrapInFunction(initializer);

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(), HasSubstr("half4x4(half4(2.0h, 3.0h, 4.0h, 8.0h), half4(0.0h), "
                                         "half4(7.0h), half4(42.0h, 21.0h, 6.0h, -5.0h))"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Empty_F32) {
     WrapInFunction(mat2x3<f32>());

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(),
                 HasSubstr("float2x3 const tint_symbol = float2x3(float3(0.0f), float3(0.0f))"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Empty_F16) {
     Enable(builtin::Extension::kF16);

     WrapInFunction(mat2x3<f16>());

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(),
                 HasSubstr("half2x3 const tint_symbol = half2x3(half3(0.0h), half3(0.0h))"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Identity_F32) {
     // fn f() {
     //     var m_1: mat4x4<f32> = mat4x4<f32>();
     //     var m_2: mat4x4<f32> = mat4x4<f32>(m_1);
     // }

     auto* m_1 = Var("m_1", ty.mat4x4(ty.f32()), mat4x4<f32>());
     auto* m_2 = Var("m_2", ty.mat4x4(ty.f32()), mat4x4<f32>(m_1));

     WrapInFunction(m_1, m_2);

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(), HasSubstr("float4x4 m_2 = float4x4(m_1);"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Identity_F16) {
     // fn f() {
     //     var m_1: mat4x4<f16> = mat4x4<f16>();
     //     var m_2: mat4x4<f16> = mat4x4<f16>(m_1);
     // }

     Enable(builtin::Extension::kF16);

     auto* m_1 = Var("m_1", ty.mat4x4(ty.f16()), mat4x4<f16>());
     auto* m_2 = Var("m_2", ty.mat4x4(ty.f16()), mat4x4<f16>(m_1));

     WrapInFunction(m_1, m_2);

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();

     EXPECT_THAT(gen.result(), HasSubstr("half4x4 m_2 = half4x4(m_1);"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Array) {
     WrapInFunction(Call(ty.array(ty.vec3<f32>(), 3_u), vec3<f32>(1_f, 2_f, 3_f),
                         vec3<f32>(4_f, 5_f, 6_f), vec3<f32>(7_f, 8_f, 9_f)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("{float3(1.0f, 2.0f, 3.0f), float3(4.0f, 5.0f, 6.0f), "
                                         "float3(7.0f, 8.0f, 9.0f)}"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Struct) {
     auto* str = Structure("S", utils::Vector{
                                    Member("a", ty.i32()),
                                    Member("b", ty.f32()),
                                    Member("c", ty.vec3<i32>()),
                                });

     WrapInFunction(Call(ty.Of(str), 1_i, 2_f, vec3<i32>(3_i, 4_i, 5_i)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("{.a=1, .b=2.0f, .c=int3(3, 4, 5)}"));
 }

 TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Struct_Empty) {
     auto* str = Structure("S", utils::Vector{
                                    Member("a", ty.i32()),
                                    Member("b", ty.f32()),
                                    Member("c", ty.vec3<i32>()),
                                });

     WrapInFunction(Call(ty.Of(str)));

     GeneratorImpl& gen = Build();

     ASSERT_TRUE(gen.Generate()) << gen.error();
     EXPECT_THAT(gen.result(), HasSubstr("{}"));
     EXPECT_THAT(gen.result(), testing::Not(HasSubstr("{{}}")));
 }

 }  // namespace
 }  // namespace tint::writer::msl
	// Copyright 2020 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 "gmock/gmock.h"
	#include "src/tint/writer/msl/test_helper.h"

	using namespace tint::number_suffixes; // NOLINT

	namespace tint::writer::msl {
	namespace {

	using ::testing::HasSubstr;

	using MslGeneratorImplTest = TestHelper;

	TEST_F(MslGeneratorImplTest, EmitInitializer_Bool) {
	WrapInFunction(Expr(false));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("false"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Int) {
	WrapInFunction(Expr(-12345_i));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("-12345"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_UInt) {
	WrapInFunction(Expr(56779_u));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("56779u"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Float) {
	// Use a number close to 1<<30 but whose decimal representation ends in 0.
	WrapInFunction(Expr(f32((1 << 30) - 4)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("1073741824.0f"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_F16) {
	Enable(builtin::Extension::kF16);

	// Use a number close to 1<<16 but whose decimal representation ends in 0.
	WrapInFunction(Expr(f16((1 << 15) - 8)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("32752.0h"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Float) {
	WrapInFunction(Call<f32>(-1.2e-5_f));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("-0.000012f"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_F16) {
	Enable(builtin::Extension::kF16);

	WrapInFunction(Call<f16>(-1.2e-3_h));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("-0.00119972229h"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Bool) {
	WrapInFunction(Call<bool>(true));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("true"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Int) {
	WrapInFunction(Call<i32>(-12345_i));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("-12345"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Uint) {
	WrapInFunction(Call<u32>(12345_u));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("12345u"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_F32) {
	WrapInFunction(vec3<f32>(1_f, 2_f, 3_f));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("float3(1.0f, 2.0f, 3.0f)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_F16) {
	Enable(builtin::Extension::kF16);

	WrapInFunction(vec3<f16>(1_h, 2_h, 3_h));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("half3(1.0h, 2.0h, 3.0h)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_Empty_F32) {
	WrapInFunction(vec3<f32>());

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("float3(0.0f)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_Empty_F16) {
	Enable(builtin::Extension::kF16);

	WrapInFunction(vec3<f16>());

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("half3(0.0h)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F32_Literal) {
	WrapInFunction(vec3<f32>(2_f));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("float3(2.0f)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F16_Literal) {
	Enable(builtin::Extension::kF16);

	WrapInFunction(vec3<f16>(2_h));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("half3(2.0h)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F32_Var) {
	auto* var = Var("v", Expr(2_f));
	auto* cast = vec3<f32>(var);
	WrapInFunction(var, cast);

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr(R"(float v = 2.0f;
	float3 const tint_symbol = float3(v);)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_F16_Var) {
	Enable(builtin::Extension::kF16);

	auto* var = Var("v", Expr(2_h));
	auto* cast = vec3<f16>(var);
	WrapInFunction(var, cast);

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr(R"(half v = 2.0h;
	half3 const tint_symbol = half3(v);)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_Bool) {
	WrapInFunction(vec3<bool>(true));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("bool3(true)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_Int) {
	WrapInFunction(vec3<i32>(2_i));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("int3(2)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Vec_SingleScalar_UInt) {
	WrapInFunction(vec3<u32>(2_u));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("uint3(2u)"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_F32) {
	WrapInFunction(mat2x3<f32>(vec3<f32>(1_f, 2_f, 3_f), vec3<f32>(3_f, 4_f, 5_f)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(),
	HasSubstr("float2x3(float3(1.0f, 2.0f, 3.0f), float3(3.0f, 4.0f, 5.0f))"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_F16) {
	Enable(builtin::Extension::kF16);

	WrapInFunction(mat2x3<f16>(vec3<f16>(1_h, 2_h, 3_h), vec3<f16>(3_h, 4_h, 5_h)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(),
	HasSubstr("half2x3(half3(1.0h, 2.0h, 3.0h), half3(3.0h, 4.0h, 5.0h))"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Complex_F32) {
	// mat4x4<f32>(
	// vec4<f32>(2.0f, 3.0f, 4.0f, 8.0f),
	// vec4<f32>(),
	// vec4<f32>(7.0f),
	// vec4<f32>(vec4<f32>(42.0f, 21.0f, 6.0f, -5.0f)),
	// );
	auto* vector_literal =
	vec4<f32>(Expr(f32(2.0)), Expr(f32(3.0)), Expr(f32(4.0)), Expr(f32(8.0)));
	auto* vector_zero_init = vec4<f32>();
	auto* vector_single_scalar_init = vec4<f32>(Expr(f32(7.0)));
	auto* vector_identical_init =
	vec4<f32>(vec4<f32>(Expr(f32(42.0)), Expr(f32(21.0)), Expr(f32(6.0)), Expr(f32(-5.0))));

	auto* initializer = mat4x4<f32>(vector_literal, vector_zero_init, vector_single_scalar_init,
	vector_identical_init);

	WrapInFunction(initializer);

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(), HasSubstr("float4x4(float4(2.0f, 3.0f, 4.0f, 8.0f), float4(0.0f), "
	"float4(7.0f), float4(42.0f, 21.0f, 6.0f, -5.0f))"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Complex_F16) {
	// mat4x4<f16>(
	// vec4<f16>(2.0h, 3.0h, 4.0h, 8.0h),
	// vec4<f16>(),
	// vec4<f16>(7.0h),
	// vec4<f16>(vec4<f16>(42.0h, 21.0h, 6.0h, -5.0h)),
	// );
	Enable(builtin::Extension::kF16);

	auto* vector_literal =
	vec4<f16>(Expr(f16(2.0)), Expr(f16(3.0)), Expr(f16(4.0)), Expr(f16(8.0)));
	auto* vector_zero_init = vec4<f16>();
	auto* vector_single_scalar_init = vec4<f16>(Expr(f16(7.0)));
	auto* vector_identical_init =
	vec4<f16>(vec4<f16>(Expr(f16(42.0)), Expr(f16(21.0)), Expr(f16(6.0)), Expr(f16(-5.0))));

	auto* initializer = mat4x4<f16>(vector_literal, vector_zero_init, vector_single_scalar_init,
	vector_identical_init);

	WrapInFunction(initializer);

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(), HasSubstr("half4x4(half4(2.0h, 3.0h, 4.0h, 8.0h), half4(0.0h), "
	"half4(7.0h), half4(42.0h, 21.0h, 6.0h, -5.0h))"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Empty_F32) {
	WrapInFunction(mat2x3<f32>());

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(),
	HasSubstr("float2x3 const tint_symbol = float2x3(float3(0.0f), float3(0.0f))"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Empty_F16) {
	Enable(builtin::Extension::kF16);

	WrapInFunction(mat2x3<f16>());

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(),
	HasSubstr("half2x3 const tint_symbol = half2x3(half3(0.0h), half3(0.0h))"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Identity_F32) {
	// fn f() {
	// var m_1: mat4x4<f32> = mat4x4<f32>();
	// var m_2: mat4x4<f32> = mat4x4<f32>(m_1);
	// }

	auto* m_1 = Var("m_1", ty.mat4x4(ty.f32()), mat4x4<f32>());
	auto* m_2 = Var("m_2", ty.mat4x4(ty.f32()), mat4x4<f32>(m_1));

	WrapInFunction(m_1, m_2);

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(), HasSubstr("float4x4 m_2 = float4x4(m_1);"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Mat_Identity_F16) {
	// fn f() {
	// var m_1: mat4x4<f16> = mat4x4<f16>();
	// var m_2: mat4x4<f16> = mat4x4<f16>(m_1);
	// }

	Enable(builtin::Extension::kF16);

	auto* m_1 = Var("m_1", ty.mat4x4(ty.f16()), mat4x4<f16>());
	auto* m_2 = Var("m_2", ty.mat4x4(ty.f16()), mat4x4<f16>(m_1));

	WrapInFunction(m_1, m_2);

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();

	EXPECT_THAT(gen.result(), HasSubstr("half4x4 m_2 = half4x4(m_1);"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Array) {
	WrapInFunction(Call(ty.array(ty.vec3<f32>(), 3_u), vec3<f32>(1_f, 2_f, 3_f),
	vec3<f32>(4_f, 5_f, 6_f), vec3<f32>(7_f, 8_f, 9_f)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("{float3(1.0f, 2.0f, 3.0f), float3(4.0f, 5.0f, 6.0f), "
	"float3(7.0f, 8.0f, 9.0f)}"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Struct) {
	auto* str = Structure("S", utils::Vector{
	Member("a", ty.i32()),
	Member("b", ty.f32()),
	Member("c", ty.vec3<i32>()),
	});

	WrapInFunction(Call(ty.Of(str), 1_i, 2_f, vec3<i32>(3_i, 4_i, 5_i)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("{.a=1, .b=2.0f, .c=int3(3, 4, 5)}"));
	}

	TEST_F(MslGeneratorImplTest, EmitInitializer_Type_Struct_Empty) {
	auto* str = Structure("S", utils::Vector{
	Member("a", ty.i32()),
	Member("b", ty.f32()),
	Member("c", ty.vec3<i32>()),
	});

	WrapInFunction(Call(ty.Of(str)));

	GeneratorImpl& gen = Build();

	ASSERT_TRUE(gen.Generate()) << gen.error();
	EXPECT_THAT(gen.result(), HasSubstr("{}"));
	EXPECT_THAT(gen.result(), testing::Not(HasSubstr("{{}}")));
	}

	} // namespace
	} // namespace tint::writer::msl