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// 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/tint/ast/disable_validation_attribute.h"
#include "src/tint/resolver/resolver.h"
#include "src/tint/resolver/resolver_test_helper.h"
#include "src/tint/transform/add_block_attribute.h"
#include "gmock/gmock.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::resolver {
// Helpers and typedefs
template <typename T>
using DataType = builder::DataType<T>;
template <typename T>
using vec2 = builder::vec2<T>;
template <typename T>
using vec3 = builder::vec3<T>;
template <typename T>
using vec4 = builder::vec4<T>;
template <typename T>
using mat2x2 = builder::mat2x2<T>;
template <typename T>
using mat3x3 = builder::mat3x3<T>;
template <typename T>
using mat4x4 = builder::mat4x4<T>;
template <typename T, int ID = 0>
using alias = builder::alias<T, ID>;
template <typename T>
using alias1 = builder::alias1<T>;
template <typename T>
using alias2 = builder::alias2<T>;
template <typename T>
using alias3 = builder::alias3<T>;
namespace AttributeTests {
namespace {
enum class AttributeKind {
kAlign,
kBinding,
kBuiltin,
kGroup,
kId,
kInterpolate,
kInvariant,
kLocation,
kOffset,
kSize,
kStage,
kStride,
kWorkgroup,
kBindingAndGroup,
};
static bool IsBindingAttribute(AttributeKind kind) {
switch (kind) {
case AttributeKind::kBinding:
case AttributeKind::kGroup:
case AttributeKind::kBindingAndGroup:
return true;
default:
return false;
}
}
struct TestParams {
AttributeKind kind;
bool should_pass;
};
struct TestWithParams : ResolverTestWithParam<TestParams> {};
static utils::Vector<const ast::Attribute*, 2> createAttributes(const Source& source,
ProgramBuilder& builder,
AttributeKind kind) {
switch (kind) {
case AttributeKind::kAlign:
return {builder.MemberAlign(source, 4_i)};
case AttributeKind::kBinding:
return {builder.Binding(source, 1_a)};
case AttributeKind::kBuiltin:
return {builder.Builtin(source, ast::BuiltinValue::kPosition)};
case AttributeKind::kGroup:
return {builder.Group(source, 1_a)};
case AttributeKind::kId:
return {builder.Id(source, 0_a)};
case AttributeKind::kInterpolate:
return {builder.Interpolate(source, ast::InterpolationType::kLinear,
ast::InterpolationSampling::kCenter)};
case AttributeKind::kInvariant:
return {builder.Invariant(source)};
case AttributeKind::kLocation:
return {builder.Location(source, 1_a)};
case AttributeKind::kOffset:
return {builder.MemberOffset(source, 4_a)};
case AttributeKind::kSize:
return {builder.MemberSize(source, 16_a)};
case AttributeKind::kStage:
return {builder.Stage(source, ast::PipelineStage::kCompute)};
case AttributeKind::kStride:
return {builder.create<ast::StrideAttribute>(source, 4u)};
case AttributeKind::kWorkgroup:
return {builder.create<ast::WorkgroupAttribute>(source, builder.Expr(1_i))};
case AttributeKind::kBindingAndGroup:
return {builder.Binding(source, 1_a), builder.Group(source, 1_a)};
}
return {};
}
namespace FunctionInputAndOutputTests {
using FunctionParameterAttributeTest = TestWithParams;
TEST_P(FunctionParameterAttributeTest, IsValid) {
auto& params = GetParam();
Func("main",
utils::Vector{
Param("a", ty.vec4<f32>(), createAttributes({}, *this, params.kind)),
},
ty.void_(), utils::Empty);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: attribute is not valid for non-entry point function "
"parameters");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
FunctionParameterAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using FunctionReturnTypeAttributeTest = TestWithParams;
TEST_P(FunctionReturnTypeAttributeTest, IsValid) {
auto& params = GetParam();
Func("main", utils::Empty, ty.f32(),
utils::Vector{
Return(1_f),
},
utils::Empty, createAttributes({}, *this, params.kind));
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: attribute is not valid for non-entry point function "
"return types");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
FunctionReturnTypeAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
} // namespace FunctionInputAndOutputTests
namespace EntryPointInputAndOutputTests {
using ComputeShaderParameterAttributeTest = TestWithParams;
TEST_P(ComputeShaderParameterAttributeTest, IsValid) {
auto& params = GetParam();
Func("main",
utils::Vector{
Param("a", ty.vec4<f32>(), createAttributes(Source{{12, 34}}, *this, params.kind)),
},
ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kCompute),
WorkgroupSize(1_i),
});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == AttributeKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in input of "
"compute pipeline stage");
} else if (params.kind == AttributeKind::kInterpolate ||
params.kind == AttributeKind::kLocation ||
params.kind == AttributeKind::kInvariant) {
EXPECT_EQ(r()->error(),
"12:34 error: attribute is not valid for compute shader inputs");
} else {
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for function parameters");
}
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
ComputeShaderParameterAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using FragmentShaderParameterAttributeTest = TestWithParams;
TEST_P(FragmentShaderParameterAttributeTest, IsValid) {
auto& params = GetParam();
auto attrs = createAttributes(Source{{12, 34}}, *this, params.kind);
if (params.kind != AttributeKind::kBuiltin && params.kind != AttributeKind::kLocation) {
attrs.Push(Builtin(Source{{34, 56}}, ast::BuiltinValue::kPosition));
}
auto* p = Param("a", ty.vec4<f32>(), attrs);
Func("frag_main", utils::Vector{p}, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for function parameters");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
FragmentShaderParameterAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, true},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
// kInterpolate tested separately (requires @location)
TestParams{AttributeKind::kInvariant, true},
TestParams{AttributeKind::kLocation, true},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using VertexShaderParameterAttributeTest = TestWithParams;
TEST_P(VertexShaderParameterAttributeTest, IsValid) {
auto& params = GetParam();
auto attrs = createAttributes(Source{{12, 34}}, *this, params.kind);
if (params.kind != AttributeKind::kLocation) {
attrs.Push(Location(Source{{34, 56}}, 2_a));
}
auto* p = Param("a", ty.vec4<f32>(), attrs);
Func("vertex_main", utils::Vector{p}, ty.vec4<f32>(),
utils::Vector{
Return(Construct(ty.vec4<f32>())),
},
utils::Vector{
Stage(ast::PipelineStage::kVertex),
},
utils::Vector{
Builtin(ast::BuiltinValue::kPosition),
});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == AttributeKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in input of "
"vertex pipeline stage");
} else if (params.kind == AttributeKind::kInvariant) {
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
} else {
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for function parameters");
}
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
VertexShaderParameterAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, true},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, true},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using ComputeShaderReturnTypeAttributeTest = TestWithParams;
TEST_P(ComputeShaderReturnTypeAttributeTest, IsValid) {
auto& params = GetParam();
Func("main", utils::Empty, ty.vec4<f32>(),
utils::Vector{
Return(Construct(ty.vec4<f32>(), 1_f)),
},
utils::Vector{
Stage(ast::PipelineStage::kCompute),
WorkgroupSize(1_i),
},
createAttributes(Source{{12, 34}}, *this, params.kind));
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == AttributeKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in output of "
"compute pipeline stage");
} else if (params.kind == AttributeKind::kInterpolate ||
params.kind == AttributeKind::kLocation ||
params.kind == AttributeKind::kInvariant) {
EXPECT_EQ(r()->error(),
"12:34 error: attribute is not valid for compute shader output");
} else {
EXPECT_EQ(r()->error(),
"12:34 error: attribute is not valid for entry point return "
"types");
}
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
ComputeShaderReturnTypeAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using FragmentShaderReturnTypeAttributeTest = TestWithParams;
TEST_P(FragmentShaderReturnTypeAttributeTest, IsValid) {
auto& params = GetParam();
auto attrs = createAttributes(Source{{12, 34}}, *this, params.kind);
attrs.Push(Location(Source{{34, 56}}, 2_a));
Func("frag_main", utils::Empty, ty.vec4<f32>(),
utils::Vector{Return(Construct(ty.vec4<f32>()))},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
attrs);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == AttributeKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in output of "
"fragment pipeline stage");
} else if (params.kind == AttributeKind::kInvariant) {
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
} else if (params.kind == AttributeKind::kLocation) {
EXPECT_EQ(r()->error(),
"34:56 error: duplicate location attribute\n"
"12:34 note: first attribute declared here");
} else {
EXPECT_EQ(r()->error(),
"12:34 error: attribute is not valid for entry point return "
"types");
}
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
FragmentShaderReturnTypeAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, true},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using VertexShaderReturnTypeAttributeTest = TestWithParams;
TEST_P(VertexShaderReturnTypeAttributeTest, IsValid) {
auto& params = GetParam();
auto attrs = createAttributes(Source{{12, 34}}, *this, params.kind);
// a vertex shader must include the 'position' builtin in its return type
if (params.kind != AttributeKind::kBuiltin) {
attrs.Push(Builtin(Source{{34, 56}}, ast::BuiltinValue::kPosition));
}
Func("vertex_main", utils::Empty, ty.vec4<f32>(),
utils::Vector{
Return(Construct(ty.vec4<f32>())),
},
utils::Vector{
Stage(ast::PipelineStage::kVertex),
},
attrs);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == AttributeKind::kLocation) {
EXPECT_EQ(r()->error(),
"34:56 error: multiple entry point IO attributes\n"
"12:34 note: previously consumed location(1)");
} else {
EXPECT_EQ(r()->error(),
"12:34 error: attribute is not valid for entry point return "
"types");
}
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
VertexShaderReturnTypeAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, true},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
// kInterpolate tested separately (requires @location)
TestParams{AttributeKind::kInvariant, true},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using EntryPointParameterAttributeTest = TestWithParams;
TEST_F(EntryPointParameterAttributeTest, DuplicateAttribute) {
Func("main", utils::Empty, ty.f32(),
utils::Vector{
Return(1_f),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
utils::Vector{
Location(Source{{12, 34}}, 2_a),
Location(Source{{56, 78}}, 3_a),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate location attribute
12:34 note: first attribute declared here)");
}
TEST_F(EntryPointParameterAttributeTest, DuplicateInternalAttribute) {
auto* s = Param("s", ty.sampler(ast::SamplerKind::kSampler),
utils::Vector{
Binding(0_a),
Group(0_a),
Disable(ast::DisabledValidation::kBindingPointCollision),
Disable(ast::DisabledValidation::kEntryPointParameter),
});
Func("f", utils::Vector{s}, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
using EntryPointReturnTypeAttributeTest = ResolverTest;
TEST_F(EntryPointReturnTypeAttributeTest, DuplicateAttribute) {
Func("main", utils::Empty, ty.f32(),
utils::Vector{
Return(1_f),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
utils::Vector{
Location(Source{{12, 34}}, 2_a),
Location(Source{{56, 78}}, 3_a),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate location attribute
12:34 note: first attribute declared here)");
}
TEST_F(EntryPointReturnTypeAttributeTest, DuplicateInternalAttribute) {
Func("f", utils::Empty, ty.i32(), utils::Vector{Return(1_i)},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
utils::Vector{
Disable(ast::DisabledValidation::kBindingPointCollision),
Disable(ast::DisabledValidation::kEntryPointParameter),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
} // namespace EntryPointInputAndOutputTests
namespace StructAndStructMemberTests {
using StructAttributeTest = TestWithParams;
using SpirvBlockAttribute = transform::AddBlockAttribute::BlockAttribute;
TEST_P(StructAttributeTest, IsValid) {
auto& params = GetParam();
auto* str = create<ast::Struct>(Sym("mystruct"), utils::Vector{Member("a", ty.f32())},
createAttributes(Source{{12, 34}}, *this, params.kind));
AST().AddGlobalDeclaration(str);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for struct declarations");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
StructAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using StructMemberAttributeTest = TestWithParams;
TEST_P(StructMemberAttributeTest, IsValid) {
auto& params = GetParam();
utils::Vector<const ast::StructMember*, 1> members;
if (params.kind == AttributeKind::kBuiltin) {
members.Push(
Member("a", ty.vec4<f32>(), createAttributes(Source{{12, 34}}, *this, params.kind)));
} else {
members.Push(Member("a", ty.f32(), createAttributes(Source{{12, 34}}, *this, params.kind)));
}
Structure("mystruct", members);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for structure members");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
StructMemberAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, true},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, true},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
// kInterpolate tested separately (requires @location)
// kInvariant tested separately (requires position builtin)
TestParams{AttributeKind::kLocation, true},
TestParams{AttributeKind::kOffset, true},
TestParams{AttributeKind::kSize, true},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
TEST_F(StructMemberAttributeTest, DuplicateAttribute) {
Structure("mystruct", utils::Vector{
Member("a", ty.i32(),
utils::Vector{
MemberAlign(Source{{12, 34}}, 4_i),
MemberAlign(Source{{56, 78}}, 8_i),
}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate align attribute
12:34 note: first attribute declared here)");
}
TEST_F(StructMemberAttributeTest, InvariantAttributeWithPosition) {
Structure("mystruct", utils::Vector{
Member("a", ty.vec4<f32>(),
utils::Vector{
Invariant(),
Builtin(ast::BuiltinValue::kPosition),
}),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberAttributeTest, InvariantAttributeWithoutPosition) {
Structure("mystruct", utils::Vector{
Member("a", ty.vec4<f32>(),
utils::Vector{
Invariant(Source{{12, 34}}),
}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
}
TEST_F(StructMemberAttributeTest, Align_Attribute_Const) {
GlobalConst("val", ty.i32(), Expr(1_i));
Structure("mystruct", utils::Vector{Member("a", ty.f32(), utils::Vector{MemberAlign("val")})});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberAttributeTest, Align_Attribute_ConstNegative) {
GlobalConst("val", ty.i32(), Expr(-2_i));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberAlign(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: @align value must be a positive, power-of-two integer)");
}
TEST_F(StructMemberAttributeTest, Align_Attribute_ConstPowerOfTwo) {
GlobalConst("val", ty.i32(), Expr(3_i));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberAlign(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: @align value must be a positive, power-of-two integer)");
}
TEST_F(StructMemberAttributeTest, Align_Attribute_ConstF32) {
GlobalConst("val", ty.f32(), Expr(1.23_f));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberAlign(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: @align must be an i32 or u32 value)");
}
TEST_F(StructMemberAttributeTest, Align_Attribute_ConstU32) {
GlobalConst("val", ty.u32(), Expr(2_u));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberAlign(Source{{12, 34}}, "val")})});
EXPECT_TRUE(r()->Resolve());
}
TEST_F(StructMemberAttributeTest, Align_Attribute_ConstAInt) {
GlobalConst("val", Expr(2_a));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberAlign(Source{{12, 34}}, "val")})});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberAttributeTest, Align_Attribute_ConstAFloat) {
GlobalConst("val", Expr(2.0_a));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberAlign(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: @align must be an i32 or u32 value)");
}
TEST_F(StructMemberAttributeTest, Align_Attribute_Var) {
GlobalVar(Source{{1, 2}}, "val", ty.f32(), ast::AddressSpace::kPrivate, ast::Access::kUndefined,
Expr(1.23_f));
Structure(Source{{6, 4}}, "mystruct",
utils::Vector{Member(Source{{12, 5}}, "a", ty.f32(),
utils::Vector{MemberAlign(Expr(Source{{12, 35}}, "val"))})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:35 error: var 'val' cannot be referenced at module-scope
1:2 note: var 'val' declared here)");
}
TEST_F(StructMemberAttributeTest, Align_Attribute_Override) {
Override("val", ty.f32(), Expr(1.23_f));
Structure("mystruct",
utils::Vector{Member("a", ty.f32(),
utils::Vector{MemberAlign(Expr(Source{{12, 34}}, "val"))})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: @align requires a const-expression, but expression is an override-expression)");
}
TEST_F(StructMemberAttributeTest, Size_Attribute_Const) {
GlobalConst("val", ty.i32(), Expr(4_i));
Structure("mystruct", utils::Vector{Member("a", ty.f32(), utils::Vector{MemberSize("val")})});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberAttributeTest, Size_Attribute_ConstNegative) {
GlobalConst("val", ty.i32(), Expr(-2_i));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberSize(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: @size must be a positive integer)");
}
TEST_F(StructMemberAttributeTest, Size_Attribute_ConstF32) {
GlobalConst("val", ty.f32(), Expr(1.23_f));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberSize(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: @size must be an i32 or u32 value)");
}
TEST_F(StructMemberAttributeTest, Size_Attribute_ConstU32) {
GlobalConst("val", ty.u32(), Expr(4_u));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberSize(Source{{12, 34}}, "val")})});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberAttributeTest, Size_Attribute_ConstAInt) {
GlobalConst("val", Expr(4_a));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberSize(Source{{12, 34}}, "val")})});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberAttributeTest, Size_Attribute_ConstAFloat) {
GlobalConst("val", Expr(2.0_a));
Structure("mystruct", utils::Vector{Member(
"a", ty.f32(), utils::Vector{MemberSize(Source{{12, 34}}, "val")})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: @size must be an i32 or u32 value)");
}
TEST_F(StructMemberAttributeTest, Size_Attribute_Var) {
GlobalVar(Source{{1, 2}}, "val", ty.f32(), ast::AddressSpace::kPrivate, ast::Access::kUndefined,
Expr(1.23_f));
Structure(Source{{6, 4}}, "mystruct",
utils::Vector{Member(Source{{12, 5}}, "a", ty.f32(),
utils::Vector{MemberSize(Expr(Source{{12, 35}}, "val"))})});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:35 error: var 'val' cannot be referenced at module-scope
1:2 note: var 'val' declared here)");
}
TEST_F(StructMemberAttributeTest, Size_Attribute_Override) {
Override("val", ty.f32(), Expr(1.23_f));
Structure("mystruct",
utils::Vector{
Member("a", ty.f32(), utils::Vector{MemberSize(Expr(Source{{12, 34}}, "val"))}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: @size requires a const-expression, but expression is an override-expression)");
}
TEST_F(StructMemberAttributeTest, Size_On_RuntimeSizedArray) {
Structure("mystruct",
utils::Vector{
Member("a", ty.array<i32>(), utils::Vector{MemberSize(Source{{12, 34}}, 8_a)}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: @size can only be applied to members where the member's type size can be fully determined at shader creation time)");
}
} // namespace StructAndStructMemberTests
using ArrayAttributeTest = TestWithParams;
TEST_P(ArrayAttributeTest, IsValid) {
auto& params = GetParam();
auto* arr = ty.array(ty.f32(), nullptr, createAttributes(Source{{12, 34}}, *this, params.kind));
Structure("mystruct", utils::Vector{
Member("a", arr),
});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for array types");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
ArrayAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, true},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
using VariableAttributeTest = TestWithParams;
TEST_P(VariableAttributeTest, IsValid) {
auto& params = GetParam();
auto attrs = createAttributes(Source{{12, 34}}, *this, params.kind);
auto* attr = attrs[0];
if (IsBindingAttribute(params.kind)) {
GlobalVar("a", ty.sampler(ast::SamplerKind::kSampler), attrs);
} else {
GlobalVar("a", ty.f32(), ast::AddressSpace::kPrivate, attrs);
}
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (!IsBindingAttribute(params.kind)) {
EXPECT_EQ(r()->error(), "12:34 error: attribute '" + attr->Name() +
"' is not valid for module-scope 'var'");
}
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
VariableAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, true}));
TEST_F(VariableAttributeTest, DuplicateAttribute) {
GlobalVar("a", ty.sampler(ast::SamplerKind::kSampler), Binding(Source{{12, 34}}, 2_a),
Group(2_a), Binding(Source{{56, 78}}, 3_a));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate binding attribute
12:34 note: first attribute declared here)");
}
TEST_F(VariableAttributeTest, LocalVariable) {
auto* v = Var("a", ty.f32(), utils::Vector{Binding(Source{{12, 34}}, 2_a)});
WrapInFunction(v);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: attributes are not valid on local variables");
}
using ConstantAttributeTest = TestWithParams;
TEST_P(ConstantAttributeTest, IsValid) {
auto& params = GetParam();
GlobalConst("a", ty.f32(), Expr(1.23_f),
createAttributes(Source{{12, 34}}, *this, params.kind));
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: attribute is not valid for module-scope 'const' declaration");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
ConstantAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, false},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
TEST_F(ConstantAttributeTest, DuplicateAttribute) {
GlobalConst("a", ty.f32(), Expr(1.23_f),
utils::Vector{
Id(Source{{12, 34}}, 0_a),
Id(Source{{56, 78}}, 1_a),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate id attribute
12:34 note: first attribute declared here)");
}
using OverrideAttributeTest = TestWithParams;
TEST_P(OverrideAttributeTest, IsValid) {
auto& params = GetParam();
Override("a", ty.f32(), Expr(1.23_f), createAttributes(Source{{12, 34}}, *this, params.kind));
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), "12:34 error: attribute is not valid for 'override' declaration");
}
}
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
OverrideAttributeTest,
testing::Values(TestParams{AttributeKind::kAlign, false},
TestParams{AttributeKind::kBinding, false},
TestParams{AttributeKind::kBuiltin, false},
TestParams{AttributeKind::kGroup, false},
TestParams{AttributeKind::kId, true},
TestParams{AttributeKind::kInterpolate, false},
TestParams{AttributeKind::kInvariant, false},
TestParams{AttributeKind::kLocation, false},
TestParams{AttributeKind::kOffset, false},
TestParams{AttributeKind::kSize, false},
TestParams{AttributeKind::kStage, false},
TestParams{AttributeKind::kStride, false},
TestParams{AttributeKind::kWorkgroup, false},
TestParams{AttributeKind::kBindingAndGroup, false}));
TEST_F(OverrideAttributeTest, DuplicateAttribute) {
Override("a", ty.f32(), Expr(1.23_f),
utils::Vector{
Id(Source{{12, 34}}, 0_a),
Id(Source{{56, 78}}, 1_a),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate id attribute
12:34 note: first attribute declared here)");
}
} // namespace
} // namespace AttributeTests
namespace ArrayStrideTests {
namespace {
struct Params {
builder::ast_type_func_ptr create_el_type;
uint32_t stride;
bool should_pass;
};
template <typename T>
constexpr Params ParamsFor(uint32_t stride, bool should_pass) {
return Params{DataType<T>::AST, stride, should_pass};
}
struct TestWithParams : ResolverTestWithParam<Params> {};
using ArrayStrideTest = TestWithParams;
TEST_P(ArrayStrideTest, All) {
auto& params = GetParam();
auto* el_ty = params.create_el_type(*this);
std::stringstream ss;
ss << "el_ty: " << FriendlyName(el_ty) << ", stride: " << params.stride
<< ", should_pass: " << params.should_pass;
SCOPED_TRACE(ss.str());
auto* arr = ty.array(el_ty, 4_u,
utils::Vector{
create<ast::StrideAttribute>(Source{{12, 34}}, params.stride),
});
GlobalVar("myarray", arr, ast::AddressSpace::kPrivate);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: arrays decorated with the stride attribute must "
"have a stride that is at least the size of the element type, "
"and be a multiple of the element type's alignment value");
}
}
struct SizeAndAlignment {
uint32_t size;
uint32_t align;
};
constexpr SizeAndAlignment default_u32 = {4, 4};
constexpr SizeAndAlignment default_i32 = {4, 4};
constexpr SizeAndAlignment default_f32 = {4, 4};
constexpr SizeAndAlignment default_vec2 = {8, 8};
constexpr SizeAndAlignment default_vec3 = {12, 16};
constexpr SizeAndAlignment default_vec4 = {16, 16};
constexpr SizeAndAlignment default_mat2x2 = {16, 8};
constexpr SizeAndAlignment default_mat3x3 = {48, 16};
constexpr SizeAndAlignment default_mat4x4 = {64, 16};
INSTANTIATE_TEST_SUITE_P(ResolverAttributeValidationTest,
ArrayStrideTest,
testing::Values(
// Succeed because stride >= element size (while being multiple of
// element alignment)
ParamsFor<u32>(default_u32.size, true),
ParamsFor<i32>(default_i32.size, true),
ParamsFor<f32>(default_f32.size, true),
ParamsFor<vec2<f32>>(default_vec2.size, true),
// vec3's default size is not a multiple of its alignment
// ParamsFor<vec3<f32>, default_vec3.size, true},
ParamsFor<vec4<f32>>(default_vec4.size, true),
ParamsFor<mat2x2<f32>>(default_mat2x2.size, true),
ParamsFor<mat3x3<f32>>(default_mat3x3.size, true),
ParamsFor<mat4x4<f32>>(default_mat4x4.size, true),
// Fail because stride is < element size
ParamsFor<u32>(default_u32.size - 1, false),
ParamsFor<i32>(default_i32.size - 1, false),
ParamsFor<f32>(default_f32.size - 1, false),
ParamsFor<vec2<f32>>(default_vec2.size - 1, false),
ParamsFor<vec3<f32>>(default_vec3.size - 1, false),
ParamsFor<vec4<f32>>(default_vec4.size - 1, false),
ParamsFor<mat2x2<f32>>(default_mat2x2.size - 1, false),
ParamsFor<mat3x3<f32>>(default_mat3x3.size - 1, false),
ParamsFor<mat4x4<f32>>(default_mat4x4.size - 1, false),
// Succeed because stride equals multiple of element alignment
ParamsFor<u32>(default_u32.align * 7, true),
ParamsFor<i32>(default_i32.align * 7, true),
ParamsFor<f32>(default_f32.align * 7, true),
ParamsFor<vec2<f32>>(default_vec2.align * 7, true),
ParamsFor<vec3<f32>>(default_vec3.align * 7, true),
ParamsFor<vec4<f32>>(default_vec4.align * 7, true),
ParamsFor<mat2x2<f32>>(default_mat2x2.align * 7, true),
ParamsFor<mat3x3<f32>>(default_mat3x3.align * 7, true),
ParamsFor<mat4x4<f32>>(default_mat4x4.align * 7, true),
// Fail because stride is not multiple of element alignment
ParamsFor<u32>((default_u32.align - 1) * 7, false),
ParamsFor<i32>((default_i32.align - 1) * 7, false),
ParamsFor<f32>((default_f32.align - 1) * 7, false),
ParamsFor<vec2<f32>>((default_vec2.align - 1) * 7, false),
ParamsFor<vec3<f32>>((default_vec3.align - 1) * 7, false),
ParamsFor<vec4<f32>>((default_vec4.align - 1) * 7, false),
ParamsFor<mat2x2<f32>>((default_mat2x2.align - 1) * 7, false),
ParamsFor<mat3x3<f32>>((default_mat3x3.align - 1) * 7, false),
ParamsFor<mat4x4<f32>>((default_mat4x4.align - 1) * 7, false)));
TEST_F(ArrayStrideTest, DuplicateAttribute) {
auto* arr = ty.array(Source{{12, 34}}, ty.i32(), 4_u,
utils::Vector{
create<ast::StrideAttribute>(Source{{12, 34}}, 4u),
create<ast::StrideAttribute>(Source{{56, 78}}, 4u),
});
GlobalVar("myarray", arr, ast::AddressSpace::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate stride attribute
12:34 note: first attribute declared here)");
}
} // namespace
} // namespace ArrayStrideTests
namespace ResourceTests {
namespace {
using ResourceAttributeTest = ResolverTest;
TEST_F(ResourceAttributeTest, UniformBufferMissingBinding) {
auto* s = Structure("S", utils::Vector{
Member("x", ty.i32()),
});
GlobalVar(Source{{12, 34}}, "G", ty.Of(s), ast::AddressSpace::kUniform);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: resource variables require @group and @binding attributes)");
}
TEST_F(ResourceAttributeTest, StorageBufferMissingBinding) {
auto* s = Structure("S", utils::Vector{
Member("x", ty.i32()),
});
GlobalVar(Source{{12, 34}}, "G", ty.Of(s), ast::AddressSpace::kStorage, ast::Access::kRead);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: resource variables require @group and @binding attributes)");
}
TEST_F(ResourceAttributeTest, TextureMissingBinding) {
GlobalVar(Source{{12, 34}}, "G", ty.depth_texture(ast::TextureDimension::k2d));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: resource variables require @group and @binding attributes)");
}
TEST_F(ResourceAttributeTest, SamplerMissingBinding) {
GlobalVar(Source{{12, 34}}, "G", ty.sampler(ast::SamplerKind::kSampler));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: resource variables require @group and @binding attributes)");
}
TEST_F(ResourceAttributeTest, BindingPairMissingBinding) {
GlobalVar(Source{{12, 34}}, "G", ty.sampler(ast::SamplerKind::kSampler), Group(1_a));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: resource variables require @group and @binding attributes)");
}
TEST_F(ResourceAttributeTest, BindingPairMissingGroup) {
GlobalVar(Source{{12, 34}}, "G", ty.sampler(ast::SamplerKind::kSampler), Binding(1_a));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: resource variables require @group and @binding attributes)");
}
TEST_F(ResourceAttributeTest, BindingPointUsedTwiceByEntryPoint) {
GlobalVar(Source{{12, 34}}, "A", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(1_a), Group(2_a));
GlobalVar(Source{{56, 78}}, "B", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(1_a), Group(2_a));
Func("F", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("a", ty.vec4<f32>(), Call("textureLoad", "A", vec2<i32>(1_i, 2_i), 0_i))),
Decl(Var("b", ty.vec4<f32>(), Call("textureLoad", "B", vec2<i32>(1_i, 2_i), 0_i))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: entry point 'F' references multiple variables that use the same resource binding @group(2), @binding(1)
12:34 note: first resource binding usage declared here)");
}
TEST_F(ResourceAttributeTest, BindingPointUsedTwiceByDifferentEntryPoints) {
GlobalVar(Source{{12, 34}}, "A", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(1_a), Group(2_a));
GlobalVar(Source{{56, 78}}, "B", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(1_a), Group(2_a));
Func("F_A", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("a", ty.vec4<f32>(), Call("textureLoad", "A", vec2<i32>(1_i, 2_i), 0_i))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
Func("F_B", utils::Empty, ty.void_(),
utils::Vector{
Decl(Var("b", ty.vec4<f32>(), Call("textureLoad", "B", vec2<i32>(1_i, 2_i), 0_i))),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResourceAttributeTest, BindingPointOnNonResource) {
GlobalVar(Source{{12, 34}}, "G", ty.f32(), ast::AddressSpace::kPrivate, Binding(1_a),
Group(2_a));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: non-resource variables must not have @group or @binding attributes)");
}
} // namespace
} // namespace ResourceTests
namespace InvariantAttributeTests {
namespace {
using InvariantAttributeTests = ResolverTest;
TEST_F(InvariantAttributeTests, InvariantWithPosition) {
auto* param = Param("p", ty.vec4<f32>(),
utils::Vector{
Invariant(Source{{12, 34}}),
Builtin(Source{{56, 78}}, ast::BuiltinValue::kPosition),
});
Func("main", utils::Vector{param}, ty.vec4<f32>(),
utils::Vector{
Return(Construct(ty.vec4<f32>())),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
utils::Vector{
Location(0_a),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(InvariantAttributeTests, InvariantWithoutPosition) {
auto* param = Param("p", ty.vec4<f32>(),
utils::Vector{
Invariant(Source{{12, 34}}),
Location(0_a),
});
Func("main", utils::Vector{param}, ty.vec4<f32>(),
utils::Vector{
Return(Construct(ty.vec4<f32>())),
},
utils::Vector{
Stage(ast::PipelineStage::kFragment),
},
utils::Vector{
Location(0_a),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
}
} // namespace
} // namespace InvariantAttributeTests
namespace WorkgroupAttributeTests {
namespace {
using WorkgroupAttribute = ResolverTest;
TEST_F(WorkgroupAttribute, ComputeShaderPass) {
Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kCompute),
create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i)),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(WorkgroupAttribute, Missing) {
Func(Source{{12, 34}}, "main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kCompute),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: a compute shader must include 'workgroup_size' in its "
"attributes");
}
TEST_F(WorkgroupAttribute, NotAnEntryPoint) {
Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i)),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: the workgroup_size attribute is only valid for "
"compute stages");
}
TEST_F(WorkgroupAttribute, NotAComputeShader) {
Func("main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
create<ast::WorkgroupAttribute>(Source{{12, 34}}, Expr(1_i)),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: the workgroup_size attribute is only valid for "
"compute stages");
}
TEST_F(WorkgroupAttribute, DuplicateAttribute) {
Func(Source{{12, 34}}, "main", utils::Empty, ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kCompute),
WorkgroupSize(Source{{12, 34}}, 1_i, nullptr, nullptr),
WorkgroupSize(Source{{56, 78}}, 2_i, nullptr, nullptr),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate workgroup_size attribute
12:34 note: first attribute declared here)");
}
} // namespace
} // namespace WorkgroupAttributeTests
namespace InterpolateTests {
namespace {
using InterpolateTest = ResolverTest;
struct Params {
ast::InterpolationType type;
ast::InterpolationSampling sampling;
bool should_pass;
};
struct TestWithParams : ResolverTestWithParam<Params> {};
using InterpolateParameterTest = TestWithParams;
TEST_P(InterpolateParameterTest, All) {
auto& params = GetParam();
Func("main",
utils::Vector{
Param("a", ty.f32(),
utils::Vector{
Location(0_a),
Interpolate(Source{{12, 34}}, params.type, params.sampling),
}),
},
ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: flat interpolation attribute must not have a "
"sampling parameter");
}
}
TEST_P(InterpolateParameterTest, IntegerScalar) {
auto& params = GetParam();
Func("main",
utils::Vector{
Param("a", ty.i32(),
utils::Vector{
Location(0_a),
Interpolate(Source{{12, 34}}, params.type, params.sampling),
}),
},
ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
if (params.type != ast::InterpolationType::kFlat) {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: interpolation type must be 'flat' for integral "
"user-defined IO types");
} else if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: flat interpolation attribute must not have a "
"sampling parameter");
}
}
TEST_P(InterpolateParameterTest, IntegerVector) {
auto& params = GetParam();
Func("main",
utils::Vector{
Param("a", ty.vec4<u32>(),
utils::Vector{
Location(0_a),
Interpolate(Source{{12, 34}}, params.type, params.sampling),
}),
},
ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
if (params.type != ast::InterpolationType::kFlat) {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: interpolation type must be 'flat' for integral "
"user-defined IO types");
} else if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: flat interpolation attribute must not have a "
"sampling parameter");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverAttributeValidationTest,
InterpolateParameterTest,
testing::Values(
Params{ast::InterpolationType::kPerspective, ast::InterpolationSampling::kUndefined, true},
Params{ast::InterpolationType::kPerspective, ast::InterpolationSampling::kCenter, true},
Params{ast::InterpolationType::kPerspective, ast::InterpolationSampling::kCentroid, true},
Params{ast::InterpolationType::kPerspective, ast::InterpolationSampling::kSample, true},
Params{ast::InterpolationType::kLinear, ast::InterpolationSampling::kUndefined, true},
Params{ast::InterpolationType::kLinear, ast::InterpolationSampling::kCenter, true},
Params{ast::InterpolationType::kLinear, ast::InterpolationSampling::kCentroid, true},
Params{ast::InterpolationType::kLinear, ast::InterpolationSampling::kSample, true},
// flat interpolation must not have a sampling type
Params{ast::InterpolationType::kFlat, ast::InterpolationSampling::kUndefined, true},
Params{ast::InterpolationType::kFlat, ast::InterpolationSampling::kCenter, false},
Params{ast::InterpolationType::kFlat, ast::InterpolationSampling::kCentroid, false},
Params{ast::InterpolationType::kFlat, ast::InterpolationSampling::kSample, false}));
TEST_F(InterpolateTest, FragmentInput_Integer_MissingFlatInterpolation) {
Func("main",
utils::Vector{Param(Source{{12, 34}}, "a", ty.i32(), utils::Vector{Location(0_a)})},
ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: integral user-defined fragment inputs must have a flat interpolation attribute)");
}
TEST_F(InterpolateTest, VertexOutput_Integer_MissingFlatInterpolation) {
auto* s = Structure(
"S",
utils::Vector{
Member("pos", ty.vec4<f32>(), utils::Vector{Builtin(ast::BuiltinValue::kPosition)}),
Member(Source{{12, 34}}, "u", ty.u32(), utils::Vector{Location(0_a)}),
});
Func("main", utils::Empty, ty.Of(s),
utils::Vector{
Return(Construct(ty.Of(s))),
},
utils::Vector{
Stage(ast::PipelineStage::kVertex),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: integral user-defined vertex outputs must have a flat interpolation attribute
note: while analyzing entry point 'main')");
}
TEST_F(InterpolateTest, MissingLocationAttribute_Parameter) {
Func("main",
utils::Vector{
Param("a", ty.vec4<f32>(),
utils::Vector{
Builtin(ast::BuiltinValue::kPosition),
Interpolate(Source{{12, 34}}, ast::InterpolationType::kFlat,
ast::InterpolationSampling::kUndefined),
}),
},
ty.void_(), utils::Empty,
utils::Vector{
Stage(ast::PipelineStage::kFragment),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: interpolate attribute must only be used with @location)");
}
TEST_F(InterpolateTest, MissingLocationAttribute_ReturnType) {
Func("main", utils::Empty, ty.vec4<f32>(),
utils::Vector{
Return(Construct(ty.vec4<f32>())),
},
utils::Vector{
Stage(ast::PipelineStage::kVertex),
},
utils::Vector{
Builtin(ast::BuiltinValue::kPosition),
Interpolate(Source{{12, 34}}, ast::InterpolationType::kFlat,
ast::InterpolationSampling::kUndefined),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: interpolate attribute must only be used with @location)");
}
TEST_F(InterpolateTest, MissingLocationAttribute_Struct) {
Structure("S",
utils::Vector{
Member("a", ty.f32(),
utils::Vector{Interpolate(Source{{12, 34}}, ast::InterpolationType::kFlat,
ast::InterpolationSampling::kUndefined)}),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: interpolate attribute must only be used with @location)");
}
using GroupAndBindingTest = ResolverTest;
TEST_F(GroupAndBindingTest, Const_I32) {
GlobalConst("b", Expr(4_i));
GlobalConst("g", Expr(2_i));
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()), Binding("b"),
Group("g"));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(GroupAndBindingTest, Const_U32) {
GlobalConst("b", Expr(4_u));
GlobalConst("g", Expr(2_u));
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()), Binding("b"),
Group("g"));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(GroupAndBindingTest, Const_AInt) {
GlobalConst("b", Expr(4_a));
GlobalConst("g", Expr(2_a));
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()), Binding("b"),
Group("g"));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(GroupAndBindingTest, Binding_Negative) {
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(Source{{12, 34}}, -2_i), Group(1_i));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'binding' value must be non-negative)");
}
TEST_F(GroupAndBindingTest, Binding_F32) {
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(Source{{12, 34}}, 2.0_f), Group(1_u));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'binding' must be an i32 or u32 value)");
}
TEST_F(GroupAndBindingTest, Binding_AFloat) {
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
Binding(Source{{12, 34}}, 2.0_a), Group(1_u));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'binding' must be an i32 or u32 value)");
}
TEST_F(GroupAndBindingTest, Group_Negative) {
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()), Binding(2_u),
Group(Source{{12, 34}}, -1_i));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'group' value must be non-negative)");
}
TEST_F(GroupAndBindingTest, Group_F32) {
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()), Binding(2_u),
Group(Source{{12, 34}}, 1.0_f));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'group' must be an i32 or u32 value)");
}
TEST_F(GroupAndBindingTest, Group_AFloat) {
GlobalVar("val", ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()), Binding(2_u),
Group(Source{{12, 34}}, 1.0_a));
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'group' must be an i32 or u32 value)");
}
using IdTest = ResolverTest;
TEST_F(IdTest, Const_I32) {
Override("val", ty.f32(), utils::Vector{Id(1_i)});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(IdTest, Const_U32) {
Override("val", ty.f32(), utils::Vector{Id(1_u)});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(IdTest, Const_AInt) {
Override("val", ty.f32(), utils::Vector{Id(1_a)});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(IdTest, Negative) {
Override("val", ty.f32(), utils::Vector{Id(Source{{12, 34}}, -1_i)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'id' value must be non-negative)");
}
TEST_F(IdTest, F32) {
Override("val", ty.f32(), utils::Vector{Id(Source{{12, 34}}, 1_f)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'id' must be an i32 or u32 value)");
}
TEST_F(IdTest, AFloat) {
Override("val", ty.f32(), utils::Vector{Id(Source{{12, 34}}, 1.0_a)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(), R"(12:34 error: 'id' must be an i32 or u32 value)");
}
} // namespace
} // namespace InterpolateTests
} // namespace tint::resolver