| // 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 "src/tint/ast/id_attribute.h" |
| #include "src/tint/writer/hlsl/test_helper.h" |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| namespace tint::writer::hlsl { |
| namespace { |
| |
| using HlslGeneratorImplTest_ModuleConstant = TestHelper; |
| |
| TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_ModuleConstant) { |
| auto* var = Let("pos", ty.array<f32, 3>(), array<f32, 3>(1_f, 2_f, 3_f)); |
| WrapInFunction(Decl(var)); |
| |
| GeneratorImpl& gen = Build(); |
| |
| ASSERT_TRUE(gen.EmitProgramConstVariable(var)) << gen.error(); |
| EXPECT_EQ(gen.result(), "static const float pos[3] = {1.0f, 2.0f, 3.0f};\n"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_SpecConstant) { |
| auto* var = Override("pos", ty.f32(), Expr(3_f), |
| ast::AttributeList{ |
| Id(23), |
| }); |
| |
| GeneratorImpl& gen = Build(); |
| |
| ASSERT_TRUE(gen.EmitProgramConstVariable(var)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(#ifndef WGSL_SPEC_CONSTANT_23 |
| #define WGSL_SPEC_CONSTANT_23 3.0f |
| #endif |
| static const float pos = WGSL_SPEC_CONSTANT_23; |
| )"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_SpecConstant_NoConstructor) { |
| auto* var = Override("pos", ty.f32(), nullptr, |
| ast::AttributeList{ |
| Id(23), |
| }); |
| |
| GeneratorImpl& gen = Build(); |
| |
| ASSERT_TRUE(gen.EmitProgramConstVariable(var)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(#ifndef WGSL_SPEC_CONSTANT_23 |
| #error spec constant required for constant id 23 |
| #endif |
| static const float pos = WGSL_SPEC_CONSTANT_23; |
| )"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_SpecConstant_NoId) { |
| auto* a = Override("a", ty.f32(), Expr(3_f), |
| ast::AttributeList{ |
| Id(0), |
| }); |
| auto* b = Override("b", ty.f32(), Expr(2_f)); |
| |
| GeneratorImpl& gen = Build(); |
| |
| ASSERT_TRUE(gen.EmitProgramConstVariable(a)) << gen.error(); |
| ASSERT_TRUE(gen.EmitProgramConstVariable(b)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(#ifndef WGSL_SPEC_CONSTANT_0 |
| #define WGSL_SPEC_CONSTANT_0 3.0f |
| #endif |
| static const float a = WGSL_SPEC_CONSTANT_0; |
| #ifndef WGSL_SPEC_CONSTANT_1 |
| #define WGSL_SPEC_CONSTANT_1 2.0f |
| #endif |
| static const float b = WGSL_SPEC_CONSTANT_1; |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::writer::hlsl |