| // Copyright 2023 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/lang/core/ir/var.h" |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest-spi.h" |
| #include "src/tint/lang/core/ir/builder.h" |
| #include "src/tint/lang/core/ir/instruction.h" |
| #include "src/tint/lang/core/ir/ir_test_helper.h" |
| |
| namespace tint::ir { |
| namespace { |
| |
| using namespace tint::builtin::fluent_types; // NOLINT |
| using namespace tint::number_suffixes; // NOLINT |
| |
| using IR_VarTest = IRTestHelper; |
| |
| TEST_F(IR_VarTest, Fail_NullType) { |
| EXPECT_FATAL_FAILURE( |
| { |
| Module mod; |
| Builder b{mod}; |
| b.Var(nullptr); |
| }, |
| ""); |
| } |
| |
| TEST_F(IR_VarTest, Results) { |
| auto* var = b.Var(ty.ptr<function, f32>()); |
| EXPECT_TRUE(var->HasResults()); |
| EXPECT_FALSE(var->HasMultiResults()); |
| EXPECT_TRUE(var->Result()->Is<InstructionResult>()); |
| EXPECT_EQ(var->Result()->Source(), var); |
| } |
| |
| TEST_F(IR_VarTest, Initializer_Usage) { |
| Module mod; |
| Builder b{mod}; |
| auto* var = b.Var(ty.ptr<function, f32>()); |
| auto* init = b.Constant(1_f); |
| var->SetInitializer(init); |
| |
| EXPECT_THAT(init->Usages(), testing::UnorderedElementsAre(Usage{var, 0u})); |
| var->SetInitializer(nullptr); |
| EXPECT_TRUE(init->Usages().IsEmpty()); |
| } |
| |
| } // namespace |
| } // namespace tint::ir |