// Copyright 2021 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
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#include "gmock/gmock.h"
#include "src/tint/lang/core/type/atomic.h"
#include "src/tint/lang/core/type/binding_array.h"
#include "src/tint/lang/wgsl/resolver/resolver_helper_test.h"
#include "src/tint/lang/wgsl/resolver/validator.h"
#include "src/tint/lang/wgsl/sem/array.h"

namespace tint::resolver {
namespace {

using ValidatorIsStorableTest = ResolverTest;

TEST_F(ValidatorIsStorableTest, Void) {
    EXPECT_FALSE(v()->IsStorable(create<core::type::Void>()));
}

TEST_F(ValidatorIsStorableTest, Scalar) {
    EXPECT_TRUE(v()->IsStorable(create<core::type::Bool>()));
    EXPECT_TRUE(v()->IsStorable(create<core::type::I32>()));
    EXPECT_TRUE(v()->IsStorable(create<core::type::U32>()));
    EXPECT_TRUE(v()->IsStorable(create<core::type::F32>()));
    EXPECT_TRUE(v()->IsStorable(create<core::type::F16>()));
}

TEST_F(ValidatorIsStorableTest, Vector) {
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::I32>(), 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::I32>(), 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::I32>(), 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::U32>(), 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::U32>(), 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::U32>(), 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::F32>(), 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::F32>(), 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::F32>(), 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::F16>(), 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::F16>(), 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Vector>(create<core::type::F16>(), 4u)));
}

TEST_F(ValidatorIsStorableTest, Matrix) {
    auto* vec2_f32 = create<core::type::Vector>(create<core::type::F32>(), 2u);
    auto* vec3_f32 = create<core::type::Vector>(create<core::type::F32>(), 3u);
    auto* vec4_f32 = create<core::type::Vector>(create<core::type::F32>(), 4u);
    auto* vec2_f16 = create<core::type::Vector>(create<core::type::F16>(), 2u);
    auto* vec3_f16 = create<core::type::Vector>(create<core::type::F16>(), 3u);
    auto* vec4_f16 = create<core::type::Vector>(create<core::type::F16>(), 4u);
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec2_f32, 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec2_f32, 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec2_f32, 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec3_f32, 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec3_f32, 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec3_f32, 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec4_f32, 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec4_f32, 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec4_f32, 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec2_f16, 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec2_f16, 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec2_f16, 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec3_f16, 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec3_f16, 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec3_f16, 4u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec4_f16, 2u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec4_f16, 3u)));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Matrix>(vec4_f16, 4u)));
}

TEST_F(ValidatorIsStorableTest, Pointer) {
    auto* ptr = create<core::type::Pointer>(core::AddressSpace::kPrivate, create<core::type::I32>(),
                                            core::Access::kReadWrite);
    EXPECT_FALSE(v()->IsStorable(ptr));
}

TEST_F(ValidatorIsStorableTest, Atomic) {
    EXPECT_TRUE(v()->IsStorable(create<core::type::Atomic>(create<core::type::I32>())));
    EXPECT_TRUE(v()->IsStorable(create<core::type::Atomic>(create<core::type::U32>())));
}

TEST_F(ValidatorIsStorableTest, ArraySizedOfStorable) {
    auto* arr = create<sem::Array>(create<core::type::I32>(),
                                   create<core::type::ConstantArrayCount>(5u), 20u);
    EXPECT_TRUE(v()->IsStorable(arr));
}

TEST_F(ValidatorIsStorableTest, ArrayUnsizedOfStorable) {
    auto* arr =
        create<sem::Array>(create<core::type::I32>(), create<core::type::RuntimeArrayCount>(), 4u);
    EXPECT_TRUE(v()->IsStorable(arr));
}

TEST_F(ValidatorIsStorableTest, BindingArray) {
    auto* arr = create<core::type::BindingArray>(
        create<core::type::SampledTexture>(core::type::TextureDimension::k2d,
                                           create<core::type::F32>()),
        create<core::type::ConstantArrayCount>(4u));
    EXPECT_TRUE(v()->IsStorable(arr));
}

}  // namespace
}  // namespace tint::resolver
