| // 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/wrap_arrays_in_structs.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "src/transform/test_helper.h" |
| |
| namespace tint { |
| namespace transform { |
| namespace { |
| |
| using WrapArraysInStructsTest = TransformTest; |
| |
| TEST_F(WrapArraysInStructsTest, ShouldRunEmptyModule) { |
| auto* src = R"()"; |
| |
| EXPECT_FALSE(ShouldRun<WrapArraysInStructs>(src)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ShouldRunHasArray) { |
| auto* src = R"( |
| var<private> arr : array<i32, 4>; |
| )"; |
| |
| EXPECT_TRUE(ShouldRun<WrapArraysInStructs>(src)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, EmptyModule) { |
| auto* src = R"()"; |
| auto* expect = src; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArrayAsGlobal) { |
| auto* src = R"( |
| var<private> arr : array<i32, 4>; |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| var<private> arr : tint_array_wrapper; |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArrayAsFunctionVar) { |
| auto* src = R"( |
| fn f() { |
| var arr : array<i32, 4>; |
| let x = arr[3]; |
| } |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| fn f() { |
| var arr : tint_array_wrapper; |
| let x = arr.arr[3]; |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArrayAsParam) { |
| auto* src = R"( |
| fn f(a : array<i32, 4>) -> i32 { |
| return a[2]; |
| } |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| fn f(a : tint_array_wrapper) -> i32 { |
| return a.arr[2]; |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArrayAsReturn) { |
| auto* src = R"( |
| fn f() -> array<i32, 4> { |
| return array<i32, 4>(1, 2, 3, 4); |
| } |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| fn f() -> tint_array_wrapper { |
| return tint_array_wrapper(array<i32, 4u>(1, 2, 3, 4)); |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArrayAlias) { |
| auto* src = R"( |
| type Inner = array<i32, 2>; |
| type Array = array<Inner, 2>; |
| |
| fn f() { |
| var arr : Array; |
| arr = Array(); |
| arr = Array(Inner(1, 2), Inner(3, 4)); |
| let vals : Array = Array(Inner(1, 2), Inner(3, 4)); |
| arr = vals; |
| let x = arr[3]; |
| } |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 2u>; |
| } |
| |
| type Inner = tint_array_wrapper; |
| |
| struct tint_array_wrapper_1 { |
| arr : array<tint_array_wrapper, 2u>; |
| } |
| |
| type Array = tint_array_wrapper_1; |
| |
| fn f() { |
| var arr : tint_array_wrapper_1; |
| arr = tint_array_wrapper_1(array<tint_array_wrapper, 2u>()); |
| arr = tint_array_wrapper_1(array<tint_array_wrapper, 2u>(tint_array_wrapper(array<i32, 2u>(1, 2)), tint_array_wrapper(array<i32, 2u>(3, 4)))); |
| let vals : tint_array_wrapper_1 = tint_array_wrapper_1(array<tint_array_wrapper, 2u>(tint_array_wrapper(array<i32, 2u>(1, 2)), tint_array_wrapper(array<i32, 2u>(3, 4)))); |
| arr = vals; |
| let x = arr.arr[3]; |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArraysInStruct) { |
| auto* src = R"( |
| struct S { |
| a : array<i32, 4>; |
| b : array<i32, 8>; |
| c : array<i32, 4>; |
| }; |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| struct tint_array_wrapper_1 { |
| arr : array<i32, 8u>; |
| } |
| |
| struct S { |
| a : tint_array_wrapper; |
| b : tint_array_wrapper_1; |
| c : tint_array_wrapper; |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, ArraysOfArraysInStruct) { |
| auto* src = R"( |
| struct S { |
| a : array<i32, 4>; |
| b : array<array<i32, 4>, 4>; |
| c : array<array<array<i32, 4>, 4>, 4>; |
| }; |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| struct tint_array_wrapper_1 { |
| arr : array<tint_array_wrapper, 4u>; |
| } |
| |
| struct tint_array_wrapper_2 { |
| arr : array<tint_array_wrapper_1, 4u>; |
| } |
| |
| struct S { |
| a : tint_array_wrapper; |
| b : tint_array_wrapper_1; |
| c : tint_array_wrapper_2; |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, AccessArraysOfArraysInStruct) { |
| auto* src = R"( |
| struct S { |
| a : array<i32, 4>; |
| b : array<array<i32, 4>, 4>; |
| c : array<array<array<i32, 4>, 4>, 4>; |
| }; |
| |
| fn f(s : S) -> i32 { |
| return s.a[2] + s.b[1][2] + s.c[3][1][2]; |
| } |
| )"; |
| auto* expect = R"( |
| struct tint_array_wrapper { |
| arr : array<i32, 4u>; |
| } |
| |
| struct tint_array_wrapper_1 { |
| arr : array<tint_array_wrapper, 4u>; |
| } |
| |
| struct tint_array_wrapper_2 { |
| arr : array<tint_array_wrapper_1, 4u>; |
| } |
| |
| struct S { |
| a : tint_array_wrapper; |
| b : tint_array_wrapper_1; |
| c : tint_array_wrapper_2; |
| } |
| |
| fn f(s : S) -> i32 { |
| return ((s.a.arr[2] + s.b.arr[1].arr[2]) + s.c.arr[3].arr[1].arr[2]); |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(WrapArraysInStructsTest, DeclarationOrder) { |
| auto* src = R"( |
| type T0 = i32; |
| |
| type T1 = array<i32, 1>; |
| |
| type T2 = i32; |
| |
| fn f1(a : array<i32, 2>) { |
| } |
| |
| type T3 = i32; |
| |
| fn f2() { |
| var v : array<i32, 3>; |
| } |
| )"; |
| auto* expect = R"( |
| type T0 = i32; |
| |
| struct tint_array_wrapper { |
| arr : array<i32, 1u>; |
| } |
| |
| type T1 = tint_array_wrapper; |
| |
| type T2 = i32; |
| |
| struct tint_array_wrapper_1 { |
| arr : array<i32, 2u>; |
| } |
| |
| fn f1(a : tint_array_wrapper_1) { |
| } |
| |
| type T3 = i32; |
| |
| struct tint_array_wrapper_2 { |
| arr : array<i32, 3u>; |
| } |
| |
| fn f2() { |
| var v : tint_array_wrapper_2; |
| } |
| )"; |
| |
| auto got = Run<WrapArraysInStructs>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| } // namespace |
| } // namespace transform |
| } // namespace tint |