| // 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/ast/type/alias_type.h" |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/storage_class.h" |
| #include "src/ast/type/i32_type.h" |
| #include "src/ast/type/pointer_type.h" |
| #include "src/ast/type/u32_type.h" |
| |
| namespace tint { |
| namespace ast { |
| namespace type { |
| namespace { |
| |
| using AliasTypeTest = testing::Test; |
| |
| TEST_F(AliasTypeTest, Create) { |
| U32Type u32; |
| AliasType a{"a_type", &u32}; |
| EXPECT_EQ(a.name(), "a_type"); |
| EXPECT_EQ(a.type(), &u32); |
| } |
| |
| TEST_F(AliasTypeTest, Is) { |
| I32Type i32; |
| |
| AliasType at{"a", &i32}; |
| EXPECT_TRUE(at.IsAlias()); |
| EXPECT_FALSE(at.IsArray()); |
| EXPECT_FALSE(at.IsBool()); |
| EXPECT_FALSE(at.IsF32()); |
| EXPECT_FALSE(at.IsI32()); |
| EXPECT_FALSE(at.IsMatrix()); |
| EXPECT_FALSE(at.IsPointer()); |
| EXPECT_FALSE(at.IsStruct()); |
| EXPECT_FALSE(at.IsU32()); |
| EXPECT_FALSE(at.IsVector()); |
| } |
| |
| TEST_F(AliasTypeTest, TypeName) { |
| I32Type i32; |
| AliasType at{"Particle", &i32}; |
| EXPECT_EQ(at.type_name(), "__alias_Particle__i32"); |
| } |
| |
| TEST_F(AliasTypeTest, UnwrapAliasesIfNeeded) { |
| U32Type u32; |
| AliasType a{"a_type", &u32}; |
| EXPECT_EQ(a.name(), "a_type"); |
| EXPECT_EQ(a.type(), &u32); |
| EXPECT_EQ(a.UnwrapAliasesIfNeeded(), &u32); |
| EXPECT_EQ(u32.UnwrapAliasesIfNeeded(), &u32); |
| } |
| |
| TEST_F(AliasTypeTest, UnwrapAliasesIfNeeded_MultiLevel) { |
| U32Type u32; |
| AliasType a{"a_type", &u32}; |
| AliasType aa{"aa_type", &a}; |
| EXPECT_EQ(aa.name(), "aa_type"); |
| EXPECT_EQ(aa.type(), &a); |
| EXPECT_EQ(aa.UnwrapAliasesIfNeeded(), &u32); |
| } |
| |
| TEST_F(AliasTypeTest, UnwrapAliasPtrAlias_TwiceAliasPointerTwiceAlias) { |
| U32Type u32; |
| AliasType a{"a_type", &u32}; |
| AliasType aa{"aa_type", &a}; |
| PointerType paa{&aa, StorageClass::kUniform}; |
| AliasType apaa{"paa_type", &paa}; |
| AliasType aapaa{"aapaa_type", &apaa}; |
| EXPECT_EQ(aapaa.name(), "aapaa_type"); |
| EXPECT_EQ(aapaa.type(), &apaa); |
| EXPECT_EQ(aapaa.UnwrapAliasPtrAlias(), &u32); |
| EXPECT_EQ(u32.UnwrapAliasPtrAlias(), &u32); |
| } |
| |
| TEST_F(AliasTypeTest, |
| UnwrapAliasPtrAlias_SecondConsecutivePointerBlocksWUnrapping) { |
| U32Type u32; |
| AliasType a{"a_type", &u32}; |
| AliasType aa{"aa_type", &a}; |
| PointerType paa{&aa, StorageClass::kUniform}; |
| PointerType ppaa{&paa, StorageClass::kUniform}; |
| AliasType appaa{"appaa_type", &ppaa}; |
| EXPECT_EQ(appaa.UnwrapAliasPtrAlias(), &paa); |
| } |
| |
| TEST_F(AliasTypeTest, |
| UnwrapAliasPtrAlias_SecondNonConsecutivePointerBlocksWUnrapping) { |
| U32Type u32; |
| AliasType a{"a_type", &u32}; |
| AliasType aa{"aa_type", &a}; |
| PointerType paa{&aa, StorageClass::kUniform}; |
| AliasType apaa{"apaa_type", &paa}; |
| AliasType aapaa{"aapaa_type", &apaa}; |
| PointerType paapaa{&aapaa, StorageClass::kUniform}; |
| AliasType apaapaa{"apaapaa_type", &paapaa}; |
| EXPECT_EQ(apaapaa.UnwrapAliasPtrAlias(), &paa); |
| } |
| |
| } // namespace |
| } // namespace type |
| } // namespace ast |
| } // namespace tint |