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// 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/sem/struct.h"
#include "src/tint/sem/test_helper.h"
#include "src/tint/sem/texture.h"
namespace tint::sem {
namespace {
using namespace tint::number_suffixes; // NOLINT
using StructTest = TestHelper;
TEST_F(StructTest, Creation) {
auto name = Sym("S");
auto* impl = create<ast::Struct>(name, utils::Empty, utils::Empty);
auto* ptr = impl;
auto* s = create<sem::Struct>(impl, impl->name, StructMemberList{}, 4u /* align */,
8u /* size */, 16u /* size_no_padding */);
EXPECT_EQ(s->Declaration(), ptr);
EXPECT_EQ(s->Align(), 4u);
EXPECT_EQ(s->Size(), 8u);
EXPECT_EQ(s->SizeNoPadding(), 16u);
}
TEST_F(StructTest, Hash) {
auto* a_impl = create<ast::Struct>(Sym("a"), utils::Empty, utils::Empty);
auto* a = create<sem::Struct>(a_impl, a_impl->name, StructMemberList{}, 4u /* align */,
4u /* size */, 4u /* size_no_padding */);
auto* b_impl = create<ast::Struct>(Sym("b"), utils::Empty, utils::Empty);
auto* b = create<sem::Struct>(b_impl, b_impl->name, StructMemberList{}, 4u /* align */,
4u /* size */, 4u /* size_no_padding */);
EXPECT_NE(a->Hash(), b->Hash());
}
TEST_F(StructTest, Equals) {
auto* a_impl = create<ast::Struct>(Sym("a"), utils::Empty, utils::Empty);
auto* a = create<sem::Struct>(a_impl, a_impl->name, StructMemberList{}, 4u /* align */,
4u /* size */, 4u /* size_no_padding */);
auto* b_impl = create<ast::Struct>(Sym("b"), utils::Empty, utils::Empty);
auto* b = create<sem::Struct>(b_impl, b_impl->name, StructMemberList{}, 4u /* align */,
4u /* size */, 4u /* size_no_padding */);
EXPECT_TRUE(a->Equals(*a));
EXPECT_FALSE(a->Equals(*b));
EXPECT_FALSE(a->Equals(Void{}));
}
TEST_F(StructTest, FriendlyName) {
auto name = Sym("my_struct");
auto* impl = create<ast::Struct>(name, utils::Empty, utils::Empty);
auto* s = create<sem::Struct>(impl, impl->name, StructMemberList{}, 4u /* align */,
4u /* size */, 4u /* size_no_padding */);
EXPECT_EQ(s->FriendlyName(Symbols()), "my_struct");
}
TEST_F(StructTest, Layout) {
auto* inner_st = //
Structure("Inner", utils::Vector{
Member("a", ty.i32()),
Member("b", ty.u32()),
Member("c", ty.f32()),
Member("d", ty.vec3<f32>()),
Member("e", ty.mat4x2<f32>()),
});
auto* outer_st = Structure("Outer", utils::Vector{
Member("inner", ty.type_name("Inner")),
Member("a", ty.i32()),
});
auto p = Build();
ASSERT_TRUE(p.IsValid()) << p.Diagnostics().str();
auto* sem_inner_st = p.Sem().Get(inner_st);
auto* sem_outer_st = p.Sem().Get(outer_st);
EXPECT_EQ(sem_inner_st->Layout(p.Symbols()),
R"(/* align(16) size(64) */ struct Inner {
/* offset( 0) align( 4) size( 4) */ a : i32;
/* offset( 4) align( 4) size( 4) */ b : u32;
/* offset( 8) align( 4) size( 4) */ c : f32;
/* offset(12) align( 1) size( 4) */ // -- implicit field alignment padding --;
/* offset(16) align(16) size(12) */ d : vec3<f32>;
/* offset(28) align( 1) size( 4) */ // -- implicit field alignment padding --;
/* offset(32) align( 8) size(32) */ e : mat4x2<f32>;
/* */ };)");
EXPECT_EQ(sem_outer_st->Layout(p.Symbols()),
R"(/* align(16) size(80) */ struct Outer {
/* offset( 0) align(16) size(64) */ inner : Inner;
/* offset(64) align( 4) size( 4) */ a : i32;
/* offset(68) align( 1) size(12) */ // -- implicit struct size padding --;
/* */ };)");
}
TEST_F(StructTest, Location) {
auto* st = Structure("st", utils::Vector{
Member("a", ty.i32(), utils::Vector{Location(1_u)}),
Member("b", ty.u32()),
});
auto p = Build();
ASSERT_TRUE(p.IsValid()) << p.Diagnostics().str();
auto* sem = p.Sem().Get(st);
ASSERT_EQ(2u, sem->Members().size());
EXPECT_TRUE(sem->Members()[0]->Location().has_value());
EXPECT_EQ(sem->Members()[0]->Location().value(), 1u);
EXPECT_FALSE(sem->Members()[1]->Location().has_value());
}
} // namespace
} // namespace tint::sem