| // Copyright 2021 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/transform/unshadow.h" |
| |
| #include "src/transform/test_helper.h" |
| |
| namespace tint { |
| namespace transform { |
| namespace { |
| |
| using UnshadowTest = TransformTest; |
| |
| TEST_F(UnshadowTest, EmptyModule) { |
| auto* src = ""; |
| auto* expect = ""; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, Noop) { |
| auto* src = R"( |
| var<private> a : i32; |
| |
| let b : i32 = 1; |
| |
| fn F(c : i32) { |
| var d : i32; |
| let e : i32 = 1; |
| { |
| var f : i32; |
| let g : i32 = 1; |
| } |
| } |
| )"; |
| |
| auto* expect = src; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsAlias) { |
| auto* src = R"( |
| type a = i32; |
| |
| fn X() { |
| var a = false; |
| } |
| |
| fn Y() { |
| let a = true; |
| } |
| )"; |
| |
| auto* expect = R"( |
| type a = i32; |
| |
| fn X() { |
| var a_1 = false; |
| } |
| |
| fn Y() { |
| let a_2 = true; |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsStruct) { |
| auto* src = R"( |
| struct a { |
| m : i32; |
| }; |
| |
| fn X() { |
| var a = true; |
| } |
| |
| fn Y() { |
| let a = false; |
| } |
| )"; |
| |
| auto* expect = R"( |
| struct a { |
| m : i32; |
| } |
| |
| fn X() { |
| var a_1 = true; |
| } |
| |
| fn Y() { |
| let a_2 = false; |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsFunction) { |
| auto* src = R"( |
| fn a() { |
| var a = true; |
| } |
| |
| fn b() { |
| let b = false; |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn a() { |
| var a_1 = true; |
| } |
| |
| fn b() { |
| let b_1 = false; |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsGlobalVar) { |
| auto* src = R"( |
| var<private> a : i32; |
| |
| fn X() { |
| var a = (a == 123); |
| } |
| |
| fn Y() { |
| let a = (a == 321); |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : i32; |
| |
| fn X() { |
| var a_1 = (a == 123); |
| } |
| |
| fn Y() { |
| let a_2 = (a == 321); |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsGlobalLet) { |
| auto* src = R"( |
| let a : i32 = 1; |
| |
| fn X() { |
| var a = (a == 123); |
| } |
| |
| fn Y() { |
| let a = (a == 321); |
| } |
| )"; |
| |
| auto* expect = R"( |
| let a : i32 = 1; |
| |
| fn X() { |
| var a_1 = (a == 123); |
| } |
| |
| fn Y() { |
| let a_2 = (a == 321); |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsLocalVar) { |
| auto* src = R"( |
| fn X() { |
| var a : i32; |
| { |
| var a = (a == 123); |
| } |
| { |
| let a = (a == 321); |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn X() { |
| var a : i32; |
| { |
| var a_1 = (a == 123); |
| } |
| { |
| let a_2 = (a == 321); |
| } |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsLocalLet) { |
| auto* src = R"( |
| fn X() { |
| let a = 1; |
| { |
| var a = (a == 123); |
| } |
| { |
| let a = (a == 321); |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn X() { |
| let a = 1; |
| { |
| var a_1 = (a == 123); |
| } |
| { |
| let a_2 = (a == 321); |
| } |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, LocalShadowsParam) { |
| auto* src = R"( |
| fn F(a : i32) { |
| { |
| var a = (a == 123); |
| } |
| { |
| let a = (a == 321); |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn F(a : i32) { |
| { |
| var a_1 = (a == 123); |
| } |
| { |
| let a_2 = (a == 321); |
| } |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, ParamShadowsFunction) { |
| auto* src = R"( |
| fn a(a : i32) { |
| { |
| var a = (a == 123); |
| } |
| { |
| let a = (a == 321); |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| fn a(a_1 : i32) { |
| { |
| var a_2 = (a_1 == 123); |
| } |
| { |
| let a_3 = (a_1 == 321); |
| } |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, ParamShadowsGlobalVar) { |
| auto* src = R"( |
| var<private> a : i32; |
| |
| fn F(a : bool) { |
| } |
| )"; |
| |
| auto* expect = R"( |
| var<private> a : i32; |
| |
| fn F(a_1 : bool) { |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, ParamShadowsGlobalLet) { |
| auto* src = R"( |
| let a : i32 = 1; |
| |
| fn F(a : bool) { |
| } |
| )"; |
| |
| auto* expect = R"( |
| let a : i32 = 1; |
| |
| fn F(a_1 : bool) { |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(UnshadowTest, ParamShadowsAlias) { |
| auto* src = R"( |
| type a = i32; |
| |
| fn F(a : a) { |
| { |
| var a = (a == 123); |
| } |
| { |
| let a = (a == 321); |
| } |
| } |
| )"; |
| |
| auto* expect = R"( |
| type a = i32; |
| |
| fn F(a_1 : a) { |
| { |
| var a_2 = (a_1 == 123); |
| } |
| { |
| let a_3 = (a_1 == 321); |
| } |
| } |
| )"; |
| |
| auto got = Run<Unshadow>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| } // namespace |
| } // namespace transform |
| } // namespace tint |