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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/ast/disable_validation_decoration.h"
#include "src/resolver/resolver.h"
#include "src/resolver/resolver_test_helper.h"
#include "gmock/gmock.h"
namespace tint {
namespace 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>;
using f32 = builder::f32;
using i32 = builder::i32;
using u32 = builder::u32;
namespace DecorationTests {
namespace {
enum class DecorationKind {
kAlign,
kBinding,
kBuiltin,
kGroup,
kInterpolate,
kInvariant,
kLocation,
kOverride,
kOffset,
kSize,
kStage,
kStride,
kStructBlock,
kWorkgroup,
kBindingAndGroup,
};
static bool IsBindingDecoration(DecorationKind kind) {
switch (kind) {
case DecorationKind::kBinding:
case DecorationKind::kGroup:
case DecorationKind::kBindingAndGroup:
return true;
default:
return false;
}
}
struct TestParams {
DecorationKind kind;
bool should_pass;
};
struct TestWithParams : ResolverTestWithParam<TestParams> {};
static ast::DecorationList createDecorations(const Source& source,
ProgramBuilder& builder,
DecorationKind kind) {
switch (kind) {
case DecorationKind::kAlign:
return {builder.create<ast::StructMemberAlignDecoration>(source, 4u)};
case DecorationKind::kBinding:
return {builder.create<ast::BindingDecoration>(source, 1u)};
case DecorationKind::kBuiltin:
return {builder.Builtin(source, ast::Builtin::kPosition)};
case DecorationKind::kGroup:
return {builder.create<ast::GroupDecoration>(source, 1u)};
case DecorationKind::kInterpolate:
return {builder.Interpolate(source, ast::InterpolationType::kLinear,
ast::InterpolationSampling::kCenter)};
case DecorationKind::kInvariant:
return {builder.Invariant(source)};
case DecorationKind::kLocation:
return {builder.Location(source, 1)};
case DecorationKind::kOverride:
return {builder.create<ast::OverrideDecoration>(source, 0u)};
case DecorationKind::kOffset:
return {builder.create<ast::StructMemberOffsetDecoration>(source, 4u)};
case DecorationKind::kSize:
return {builder.create<ast::StructMemberSizeDecoration>(source, 16u)};
case DecorationKind::kStage:
return {builder.Stage(source, ast::PipelineStage::kCompute)};
case DecorationKind::kStride:
return {builder.create<ast::StrideDecoration>(source, 4u)};
case DecorationKind::kStructBlock:
return {builder.create<ast::StructBlockDecoration>(source)};
case DecorationKind::kWorkgroup:
return {
builder.create<ast::WorkgroupDecoration>(source, builder.Expr(1))};
case DecorationKind::kBindingAndGroup:
return {builder.create<ast::BindingDecoration>(source, 1u),
builder.create<ast::GroupDecoration>(source, 1u)};
}
return {};
}
namespace FunctionInputAndOutputTests {
using FunctionParameterDecorationTest = TestWithParams;
TEST_P(FunctionParameterDecorationTest, IsValid) {
auto& params = GetParam();
Func("main",
ast::VariableList{Param("a", ty.vec4<f32>(),
createDecorations({}, *this, params.kind))},
ty.void_(), {});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: decoration is not valid for non-entry point function "
"parameters");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
FunctionParameterDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using FunctionReturnTypeDecorationTest = TestWithParams;
TEST_P(FunctionReturnTypeDecorationTest, IsValid) {
auto& params = GetParam();
Func("main", ast::VariableList{}, ty.f32(), ast::StatementList{Return(1.f)},
{}, createDecorations({}, *this, params.kind));
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: decoration is not valid for non-entry point function "
"return types");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
FunctionReturnTypeDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
} // namespace FunctionInputAndOutputTests
namespace EntryPointInputAndOutputTests {
using ComputeShaderParameterDecorationTest = TestWithParams;
TEST_P(ComputeShaderParameterDecorationTest, IsValid) {
auto& params = GetParam();
auto* p = Param("a", ty.vec4<f32>(),
createDecorations(Source{{12, 34}}, *this, params.kind));
Func("main", ast::VariableList{p}, ty.void_(), {},
{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1)});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == DecorationKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in input of "
"compute pipeline stage");
} else if (params.kind == DecorationKind::kInterpolate ||
params.kind == DecorationKind::kLocation ||
params.kind == DecorationKind::kInvariant) {
EXPECT_EQ(
r()->error(),
"12:34 error: decoration is not valid for compute shader inputs");
} else {
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for function parameters");
}
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
ComputeShaderParameterDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using FragmentShaderParameterDecorationTest = TestWithParams;
TEST_P(FragmentShaderParameterDecorationTest, IsValid) {
auto& params = GetParam();
auto decos = createDecorations(Source{{12, 34}}, *this, params.kind);
if (params.kind != DecorationKind::kBuiltin &&
params.kind != DecorationKind::kLocation) {
decos.push_back(Builtin(Source{{34, 56}}, ast::Builtin::kPosition));
}
auto* p = Param("a", ty.vec4<f32>(), decos);
Func("frag_main", {p}, ty.void_(), {},
{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: decoration is not valid for function parameters");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
FragmentShaderParameterDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, true},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, true},
TestParams{DecorationKind::kInvariant, true},
TestParams{DecorationKind::kLocation, true},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using VertexShaderParameterDecorationTest = TestWithParams;
TEST_P(VertexShaderParameterDecorationTest, IsValid) {
auto& params = GetParam();
auto decos = createDecorations(Source{{12, 34}}, *this, params.kind);
if (params.kind != DecorationKind::kLocation) {
decos.push_back(Location(Source{{34, 56}}, 2));
}
auto* p = Param("a", ty.vec4<f32>(), decos);
Func("vertex_main", ast::VariableList{p}, ty.vec4<f32>(),
{Return(Construct(ty.vec4<f32>()))},
{Stage(ast::PipelineStage::kVertex)},
{Builtin(ast::Builtin::kPosition)});
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == DecorationKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in input of "
"vertex pipeline stage");
} else if (params.kind == DecorationKind::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: decoration is not valid for function parameters");
}
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
VertexShaderParameterDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, true},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, true},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using ComputeShaderReturnTypeDecorationTest = TestWithParams;
TEST_P(ComputeShaderReturnTypeDecorationTest, IsValid) {
auto& params = GetParam();
Func("main", ast::VariableList{}, ty.vec4<f32>(),
{Return(Construct(ty.vec4<f32>(), 1.f))},
{Stage(ast::PipelineStage::kCompute), WorkgroupSize(1)},
createDecorations(Source{{12, 34}}, *this, params.kind));
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == DecorationKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in output of "
"compute pipeline stage");
} else if (params.kind == DecorationKind::kInterpolate ||
params.kind == DecorationKind::kLocation ||
params.kind == DecorationKind::kInvariant) {
EXPECT_EQ(
r()->error(),
"12:34 error: decoration is not valid for compute shader output");
} else {
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for entry point return "
"types");
}
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
ComputeShaderReturnTypeDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using FragmentShaderReturnTypeDecorationTest = TestWithParams;
TEST_P(FragmentShaderReturnTypeDecorationTest, IsValid) {
auto& params = GetParam();
auto decos = createDecorations(Source{{12, 34}}, *this, params.kind);
decos.push_back(Location(Source{{34, 56}}, 2));
Func("frag_main", {}, ty.vec4<f32>(), {Return(Construct(ty.vec4<f32>()))},
{Stage(ast::PipelineStage::kFragment)}, decos);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == DecorationKind::kBuiltin) {
EXPECT_EQ(r()->error(),
"12:34 error: builtin(position) cannot be used in output of "
"fragment pipeline stage");
} else if (params.kind == DecorationKind::kInvariant) {
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
} else if (params.kind == DecorationKind::kLocation) {
EXPECT_EQ(r()->error(),
"34:56 error: duplicate location decoration\n"
"12:34 note: first decoration declared here");
} else {
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for entry point return "
"types");
}
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
FragmentShaderReturnTypeDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, true},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using VertexShaderReturnTypeDecorationTest = TestWithParams;
TEST_P(VertexShaderReturnTypeDecorationTest, IsValid) {
auto& params = GetParam();
auto decos = createDecorations(Source{{12, 34}}, *this, params.kind);
// a vertex shader must include the 'position' builtin in its return type
if (params.kind != DecorationKind::kBuiltin) {
decos.push_back(Builtin(Source{{34, 56}}, ast::Builtin::kPosition));
}
Func("vertex_main", ast::VariableList{}, ty.vec4<f32>(),
{Return(Construct(ty.vec4<f32>()))},
{Stage(ast::PipelineStage::kVertex)}, decos);
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (params.kind == DecorationKind::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: decoration is not valid for entry point return "
"types");
}
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
VertexShaderReturnTypeDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, true},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, true},
TestParams{DecorationKind::kInvariant, true},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using EntryPointParameterDecorationTest = TestWithParams;
TEST_F(EntryPointParameterDecorationTest, DuplicateDecoration) {
Func("main", ast::VariableList{}, ty.f32(), ast::StatementList{Return(1.f)},
{Stage(ast::PipelineStage::kFragment)},
{
Location(Source{{12, 34}}, 2),
Location(Source{{56, 78}}, 3),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate location decoration
12:34 note: first decoration declared here)");
}
TEST_F(EntryPointParameterDecorationTest, DuplicateInternalDecoration) {
auto* s =
Param("s", ty.sampler(ast::SamplerKind::kSampler),
ast::DecorationList{
create<ast::BindingDecoration>(0),
create<ast::GroupDecoration>(0),
ASTNodes().Create<ast::DisableValidationDecoration>(
ID(), ast::DisabledValidation::kBindingPointCollision),
ASTNodes().Create<ast::DisableValidationDecoration>(
ID(), ast::DisabledValidation::kEntryPointParameter),
});
Func("f", {s}, ty.void_(), {}, {Stage(ast::PipelineStage::kFragment)});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
using EntryPointReturnTypeDecorationTest = ResolverTest;
TEST_F(EntryPointReturnTypeDecorationTest, DuplicateDecoration) {
Func("main", ast::VariableList{}, ty.f32(), ast::StatementList{Return(1.f)},
ast::DecorationList{Stage(ast::PipelineStage::kFragment)},
ast::DecorationList{
Location(Source{{12, 34}}, 2),
Location(Source{{56, 78}}, 3),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate location decoration
12:34 note: first decoration declared here)");
}
TEST_F(EntryPointReturnTypeDecorationTest, DuplicateInternalDecoration) {
Func("f", {}, ty.i32(), {Return(1)}, {Stage(ast::PipelineStage::kFragment)},
ast::DecorationList{
ASTNodes().Create<ast::DisableValidationDecoration>(
ID(), ast::DisabledValidation::kBindingPointCollision),
ASTNodes().Create<ast::DisableValidationDecoration>(
ID(), ast::DisabledValidation::kEntryPointParameter),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
} // namespace EntryPointInputAndOutputTests
namespace StructAndStructMemberTests {
using StructDecorationTest = TestWithParams;
TEST_P(StructDecorationTest, IsValid) {
auto& params = GetParam();
Structure("mystruct", {Member("a", ty.f32())},
createDecorations(Source{{12, 34}}, *this, params.kind));
WrapInFunction();
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for struct declarations");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
StructDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, true},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
TEST_F(StructDecorationTest, DuplicateDecoration) {
Structure("mystruct",
{
Member("a", ty.i32()),
},
{
create<ast::StructBlockDecoration>(Source{{12, 34}}),
create<ast::StructBlockDecoration>(Source{{56, 78}}),
});
WrapInFunction();
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate block decoration
12:34 note: first decoration declared here)");
}
using StructMemberDecorationTest = TestWithParams;
TEST_P(StructMemberDecorationTest, IsValid) {
auto& params = GetParam();
ast::StructMemberList members;
if (params.kind == DecorationKind::kBuiltin) {
members.push_back(
{Member("a", ty.vec4<f32>(),
createDecorations(Source{{12, 34}}, *this, params.kind))});
} else {
members.push_back(
{Member("a", ty.f32(),
createDecorations(Source{{12, 34}}, *this, params.kind))});
}
Structure("mystruct", members);
WrapInFunction();
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for structure members");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
StructMemberDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, true},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, true},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, true},
// kInvariant tested separately (requires position builtin)
TestParams{DecorationKind::kLocation, true},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, true},
TestParams{DecorationKind::kSize, true},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
TEST_F(StructMemberDecorationTest, DuplicateDecoration) {
Structure("mystruct", {
Member("a", ty.i32(),
{
create<ast::StructMemberAlignDecoration>(
Source{{12, 34}}, 4u),
create<ast::StructMemberAlignDecoration>(
Source{{56, 78}}, 8u),
}),
});
WrapInFunction();
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate align decoration
12:34 note: first decoration declared here)");
}
TEST_F(StructMemberDecorationTest, InvariantDecorationWithPosition) {
Structure("mystruct", {
Member("a", ty.vec4<f32>(),
{
Invariant(),
Builtin(ast::Builtin::kPosition),
}),
});
WrapInFunction();
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(StructMemberDecorationTest, InvariantDecorationWithoutPosition) {
Structure("mystruct", {
Member("a", ty.vec4<f32>(),
{
Invariant(Source{{12, 34}}),
}),
});
WrapInFunction();
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
}
} // namespace StructAndStructMemberTests
using ArrayDecorationTest = TestWithParams;
TEST_P(ArrayDecorationTest, IsValid) {
auto& params = GetParam();
auto* arr = ty.array(ty.f32(), 0,
createDecorations(Source{{12, 34}}, *this, params.kind));
Structure("mystruct",
{
Member("a", arr),
},
{create<ast::StructBlockDecoration>()});
WrapInFunction();
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for array types");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
ArrayDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, true},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
using VariableDecorationTest = TestWithParams;
TEST_P(VariableDecorationTest, IsValid) {
auto& params = GetParam();
if (IsBindingDecoration(params.kind)) {
Global("a", ty.sampler(ast::SamplerKind::kSampler),
ast::StorageClass::kNone, nullptr,
createDecorations(Source{{12, 34}}, *this, params.kind));
} else {
Global("a", ty.f32(), ast::StorageClass::kPrivate, nullptr,
createDecorations(Source{{12, 34}}, *this, params.kind));
}
WrapInFunction();
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
if (!IsBindingDecoration(params.kind)) {
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for variables");
}
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
VariableDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, false},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, true}));
TEST_F(VariableDecorationTest, DuplicateDecoration) {
Global("a", ty.sampler(ast::SamplerKind::kSampler),
ast::DecorationList{
create<ast::BindingDecoration>(Source{{12, 34}}, 2),
create<ast::GroupDecoration>(2),
create<ast::BindingDecoration>(Source{{56, 78}}, 3),
});
WrapInFunction();
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate binding decoration
12:34 note: first decoration declared here)");
}
using ConstantDecorationTest = TestWithParams;
TEST_P(ConstantDecorationTest, IsValid) {
auto& params = GetParam();
GlobalConst("a", ty.f32(), Expr(1.23f),
createDecorations(Source{{12, 34}}, *this, params.kind));
WrapInFunction();
if (params.should_pass) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
} else {
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: decoration is not valid for constants");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
ConstantDecorationTest,
testing::Values(TestParams{DecorationKind::kAlign, false},
TestParams{DecorationKind::kBinding, false},
TestParams{DecorationKind::kBuiltin, false},
TestParams{DecorationKind::kGroup, false},
TestParams{DecorationKind::kInterpolate, false},
TestParams{DecorationKind::kInvariant, false},
TestParams{DecorationKind::kLocation, false},
TestParams{DecorationKind::kOverride, true},
TestParams{DecorationKind::kOffset, false},
TestParams{DecorationKind::kSize, false},
TestParams{DecorationKind::kStage, false},
TestParams{DecorationKind::kStride, false},
TestParams{DecorationKind::kStructBlock, false},
TestParams{DecorationKind::kWorkgroup, false},
TestParams{DecorationKind::kBindingAndGroup, false}));
TEST_F(ConstantDecorationTest, DuplicateDecoration) {
GlobalConst("a", ty.f32(), Expr(1.23f),
ast::DecorationList{
create<ast::OverrideDecoration>(Source{{12, 34}}),
create<ast::OverrideDecoration>(Source{{56, 78}}, 1),
});
WrapInFunction();
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate override decoration
12:34 note: first decoration declared here)");
}
} // namespace
} // namespace DecorationTests
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(Source{{12, 34}}, el_ty, 4, params.stride);
Global("myarray", arr, ast::StorageClass::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(
ResolverDecorationValidationTest,
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, DuplicateDecoration) {
auto* arr = ty.array(Source{{12, 34}}, ty.i32(), 4,
{
create<ast::StrideDecoration>(Source{{12, 34}}, 4),
create<ast::StrideDecoration>(Source{{56, 78}}, 4),
});
Global("myarray", arr, ast::StorageClass::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate stride decoration
12:34 note: first decoration declared here)");
}
} // namespace
} // namespace ArrayStrideTests
namespace StructBlockTests {
namespace {
using StructBlockTest = ResolverTest;
TEST_F(StructBlockTest, StructUsedAsArrayElement) {
auto* s = Structure("S", {Member("x", ty.i32())},
{create<ast::StructBlockDecoration>()});
auto* a = ty.array(ty.Of(s), 4);
Global("G", a, ast::StorageClass::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"error: A structure type with a [[block]] decoration cannot be "
"used as an element of an array");
}
TEST_F(StructBlockTest, StructWithNestedBlockMember_Invalid) {
auto* inner =
Structure("Inner", {Member("x", ty.i32())},
{create<ast::StructBlockDecoration>(Source{{56, 78}})});
auto* outer =
Structure("Outer", {Member(Source{{12, 34}}, "y", ty.Of(inner))});
Global("G", ty.Of(outer), ast::StorageClass::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(12:34 error: structs must not contain [[block]] decorated struct members
56:78 note: see member's struct decoration here)");
}
} // namespace
} // namespace StructBlockTests
namespace ResourceTests {
namespace {
using ResourceDecorationTest = ResolverTest;
TEST_F(ResourceDecorationTest, UniformBufferMissingBinding) {
auto* s = Structure("S", {Member("x", ty.i32())},
{create<ast::StructBlockDecoration>()});
Global(Source{{12, 34}}, "G", ty.Of(s), ast::StorageClass::kUniform);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: resource variables require [[group]] and [[binding]] "
"decorations");
}
TEST_F(ResourceDecorationTest, StorageBufferMissingBinding) {
auto* s = Structure("S", {Member("x", ty.i32())},
{create<ast::StructBlockDecoration>()});
Global(Source{{12, 34}}, "G", ty.Of(s), ast::StorageClass::kStorage,
ast::Access::kRead);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: resource variables require [[group]] and [[binding]] "
"decorations");
}
TEST_F(ResourceDecorationTest, TextureMissingBinding) {
Global(Source{{12, 34}}, "G", ty.depth_texture(ast::TextureDimension::k2d),
ast::StorageClass::kNone);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: resource variables require [[group]] and [[binding]] "
"decorations");
}
TEST_F(ResourceDecorationTest, SamplerMissingBinding) {
Global(Source{{12, 34}}, "G", ty.sampler(ast::SamplerKind::kSampler),
ast::StorageClass::kNone);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: resource variables require [[group]] and [[binding]] "
"decorations");
}
TEST_F(ResourceDecorationTest, BindingPairMissingBinding) {
Global(Source{{12, 34}}, "G", ty.sampler(ast::SamplerKind::kSampler),
ast::StorageClass::kNone,
ast::DecorationList{
create<ast::GroupDecoration>(1),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: resource variables require [[group]] and [[binding]] "
"decorations");
}
TEST_F(ResourceDecorationTest, BindingPairMissingGroup) {
Global(Source{{12, 34}}, "G", ty.sampler(ast::SamplerKind::kSampler),
ast::StorageClass::kNone,
ast::DecorationList{
create<ast::BindingDecoration>(1),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: resource variables require [[group]] and [[binding]] "
"decorations");
}
TEST_F(ResourceDecorationTest, BindingPointUsedTwiceByEntryPoint) {
Global(Source{{12, 34}}, "A",
ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
ast::StorageClass::kNone,
ast::DecorationList{
create<ast::BindingDecoration>(1),
create<ast::GroupDecoration>(2),
});
Global(Source{{56, 78}}, "B",
ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
ast::StorageClass::kNone,
ast::DecorationList{
create<ast::BindingDecoration>(1),
create<ast::GroupDecoration>(2),
});
Func("F", {}, ty.void_(),
{
Decl(Var("a", ty.vec4<f32>(), ast::StorageClass::kNone,
Call("textureLoad", "A", vec2<i32>(1, 2), 0))),
Decl(Var("b", ty.vec4<f32>(), ast::StorageClass::kNone,
Call("textureLoad", "B", vec2<i32>(1, 2), 0))),
},
{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(ResourceDecorationTest, BindingPointUsedTwiceByDifferentEntryPoints) {
Global(Source{{12, 34}}, "A",
ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
ast::StorageClass::kNone,
ast::DecorationList{
create<ast::BindingDecoration>(1),
create<ast::GroupDecoration>(2),
});
Global(Source{{56, 78}}, "B",
ty.sampled_texture(ast::TextureDimension::k2d, ty.f32()),
ast::StorageClass::kNone,
ast::DecorationList{
create<ast::BindingDecoration>(1),
create<ast::GroupDecoration>(2),
});
Func("F_A", {}, ty.void_(),
{
Decl(Var("a", ty.vec4<f32>(), ast::StorageClass::kNone,
Call("textureLoad", "A", vec2<i32>(1, 2), 0))),
},
{Stage(ast::PipelineStage::kFragment)});
Func("F_B", {}, ty.void_(),
{
Decl(Var("b", ty.vec4<f32>(), ast::StorageClass::kNone,
Call("textureLoad", "B", vec2<i32>(1, 2), 0))),
},
{Stage(ast::PipelineStage::kFragment)});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResourceDecorationTest, BindingPointOnNonResource) {
Global(Source{{12, 34}}, "G", ty.f32(), ast::StorageClass::kPrivate,
ast::DecorationList{
create<ast::BindingDecoration>(1),
create<ast::GroupDecoration>(2),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: non-resource variables must not have [[group]] or "
"[[binding]] decorations");
}
} // namespace
} // namespace ResourceTests
namespace InvariantDecorationTests {
namespace {
using InvariantDecorationTests = ResolverTest;
TEST_F(InvariantDecorationTests, InvariantWithPosition) {
auto* param = Param("p", ty.vec4<f32>(),
{Invariant(Source{{12, 34}}),
Builtin(Source{{56, 78}}, ast::Builtin::kPosition)});
Func("main", ast::VariableList{param}, ty.vec4<f32>(),
ast::StatementList{Return(Construct(ty.vec4<f32>()))},
ast::DecorationList{Stage(ast::PipelineStage::kFragment)},
ast::DecorationList{
Location(0),
});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(InvariantDecorationTests, InvariantWithoutPosition) {
auto* param =
Param("p", ty.vec4<f32>(), {Invariant(Source{{12, 34}}), Location(0)});
Func("main", ast::VariableList{param}, ty.vec4<f32>(),
ast::StatementList{Return(Construct(ty.vec4<f32>()))},
ast::DecorationList{Stage(ast::PipelineStage::kFragment)},
ast::DecorationList{
Location(0),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: invariant attribute must only be applied to a "
"position builtin");
}
} // namespace
} // namespace InvariantDecorationTests
namespace WorkgroupDecorationTests {
namespace {
using WorkgroupDecoration = ResolverTest;
TEST_F(WorkgroupDecoration, ComputeShaderPass) {
Func("main", {}, ty.void_(), {},
{Stage(ast::PipelineStage::kCompute),
create<ast::WorkgroupDecoration>(Source{{12, 34}}, Expr(1))});
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(WorkgroupDecoration, Missing) {
Func(Source{{12, 34}}, "main", {}, ty.void_(), {},
{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(WorkgroupDecoration, NotAnEntryPoint) {
Func("main", {}, ty.void_(), {},
{create<ast::WorkgroupDecoration>(Source{{12, 34}}, Expr(1))});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: the workgroup_size attribute is only valid for "
"compute stages");
}
TEST_F(WorkgroupDecoration, NotAComputeShader) {
Func("main", {}, ty.void_(), {},
{Stage(ast::PipelineStage::kFragment),
create<ast::WorkgroupDecoration>(Source{{12, 34}}, Expr(1))});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: the workgroup_size attribute is only valid for "
"compute stages");
}
TEST_F(WorkgroupDecoration, DuplicateDecoration) {
Func(Source{{12, 34}}, "main", {}, ty.void_(), {},
{
Stage(ast::PipelineStage::kCompute),
WorkgroupSize(Source{{12, 34}}, 1, nullptr, nullptr),
WorkgroupSize(Source{{56, 78}}, 2, nullptr, nullptr),
});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: duplicate workgroup_size decoration
12:34 note: first decoration declared here)");
}
} // namespace
} // namespace WorkgroupDecorationTests
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",
ast::VariableList{Param(
"a", ty.f32(),
{Location(0),
Interpolate(Source{{12, 34}}, params.type, params.sampling)})},
ty.void_(), {},
ast::DecorationList{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");
}
}
INSTANTIATE_TEST_SUITE_P(
ResolverDecorationValidationTest,
InterpolateParameterTest,
testing::Values(Params{ast::InterpolationType::kPerspective,
ast::InterpolationSampling::kNone, 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::kNone, 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::kNone, 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, Parameter_NotFloatingPoint) {
Func("main",
ast::VariableList{
Param("a", ty.i32(),
{Location(0),
Interpolate(Source{{12, 34}}, ast::InterpolationType::kFlat,
ast::InterpolationSampling::kNone)})},
ty.void_(), {},
ast::DecorationList{Stage(ast::PipelineStage::kFragment)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: store type of interpolate attribute must be floating "
"point scalar or vector");
}
TEST_F(InterpolateTest, ReturnType_NotFloatingPoint) {
Func(
"main", {}, ty.i32(), {Return(1)},
ast::DecorationList{Stage(ast::PipelineStage::kFragment)},
{Location(0), Interpolate(Source{{12, 34}}, ast::InterpolationType::kFlat,
ast::InterpolationSampling::kNone)});
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: store type of interpolate attribute must be floating "
"point scalar or vector");
}
} // namespace
} // namespace InterpolateTests
} // namespace resolver
} // namespace tint