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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/resolver/resolver.h"
#include "gmock/gmock.h"
#include "src/tint/resolver/resolver_test_helper.h"
#include "src/tint/sem/struct.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::resolver {
namespace {
using ::testing::HasSubstr;
using ResolverStorageClassValidationTest = ResolverTest;
TEST_F(ResolverStorageClassValidationTest, GlobalVariableNoStorageClass_Fail) {
// var g : f32;
GlobalVar(Source{{12, 34}}, "g", ty.f32());
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: module-scope 'var' declaration must have a storage class");
}
TEST_F(ResolverStorageClassValidationTest, GlobalVariableFunctionStorageClass_Fail) {
// var<function> g : f32;
GlobalVar(Source{{12, 34}}, "g", ty.f32(), ast::StorageClass::kFunction);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"12:34 error: module-scope 'var' must not use storage class 'function'");
}
TEST_F(ResolverStorageClassValidationTest, Private_RuntimeArray) {
GlobalVar(Source{{12, 34}}, "v", ty.array(ty.i32()), ast::StorageClass::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: runtime-sized arrays can only be used in the <storage> storage class
12:34 note: while instantiating 'var' v)");
}
TEST_F(ResolverStorageClassValidationTest, Private_RuntimeArrayInStruct) {
auto* s = Structure("S", utils::Vector{Member("m", ty.array(ty.i32()))});
GlobalVar(Source{{12, 34}}, "v", ty.Of(s), ast::StorageClass::kPrivate);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: runtime-sized arrays can only be used in the <storage> storage class
note: while analysing structure member S.m
12:34 note: while instantiating 'var' v)");
}
TEST_F(ResolverStorageClassValidationTest, Workgroup_RuntimeArray) {
GlobalVar(Source{{12, 34}}, "v", ty.array(ty.i32()), ast::StorageClass::kWorkgroup);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: runtime-sized arrays can only be used in the <storage> storage class
12:34 note: while instantiating 'var' v)");
}
TEST_F(ResolverStorageClassValidationTest, Workgroup_RuntimeArrayInStruct) {
auto* s = Structure("S", utils::Vector{Member("m", ty.array(ty.i32()))});
GlobalVar(Source{{12, 34}}, "v", ty.Of(s), ast::StorageClass::kWorkgroup);
EXPECT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(12:34 error: runtime-sized arrays can only be used in the <storage> storage class
note: while analysing structure member S.m
12:34 note: while instantiating 'var' v)");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferBool) {
// var<storage> g : bool;
GlobalVar(Source{{56, 78}}, "g", ty.bool_(), ast::StorageClass::kStorage, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'bool' cannot be used in storage class 'storage' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferBoolAlias) {
// type a = bool;
// var<storage, read> g : a;
auto* a = Alias("a", ty.bool_());
GlobalVar(Source{{56, 78}}, "g", ty.Of(a), ast::StorageClass::kStorage, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'bool' cannot be used in storage class 'storage' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
// F16 types in storage and uniform buffer is not implemented yet.
// TODO(tint:1473, tint:1502): make these testcases valid after f16 is supported.
TEST_F(ResolverStorageClassValidationTest, StorageBufferF16_TemporallyBan) {
// var<storage> g : f16;
Enable(ast::Extension::kF16);
GlobalVar("g", ty.f16(Source{{56, 78}}), ast::StorageClass::kStorage, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"56:78 error: using f16 types in 'storage' storage class is not "
"implemented yet");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferF16Alias_TemporallyBan) {
// type a = f16;
// var<storage, read> g : a;
Enable(ast::Extension::kF16);
auto* a = Alias("a", ty.f16());
GlobalVar("g", ty.type_name(Source{{56, 78}}, a->name), ast::StorageClass::kStorage,
Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"56:78 error: using f16 types in 'storage' storage class is not "
"implemented yet");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferVectorF16_TemporallyBan) {
// var<storage> g : vec4<f16>;
Enable(ast::Extension::kF16);
GlobalVar("g", ty.vec(Source{{56, 78}}, ty.Of<f16>(), 4u), ast::StorageClass::kStorage,
Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"56:78 error: using f16 types in 'storage' storage class is not "
"implemented yet");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferArrayF16_TemporallyBan) {
// struct S { a : f16 };
// var<storage, read> g : array<S, 3u>;
Enable(ast::Extension::kF16);
auto* s = Structure("S", utils::Vector{Member("a", ty.f16(Source{{56, 78}}))});
auto* a = ty.array(ty.Of(s), 3_u);
GlobalVar("g", a, ast::StorageClass::kStorage, ast::Access::kRead, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("56:78 error: using f16 types in 'storage' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferStructF16_TemporallyBan) {
// struct S { x : f16 };
// var<storage, read> g : S;
Enable(ast::Extension::kF16);
auto* s = Structure("S", utils::Vector{Member("x", ty.f16(Source{{12, 34}}))});
GlobalVar("g", ty.Of(s), ast::StorageClass::kStorage, ast::Access::kRead, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("12:34 error: using f16 types in 'storage' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferNoErrorStructF16Aliases_TemporallyBan) {
// struct S { x : f16 };
// type a1 = S;
// var<storage, read> g : a1;
Enable(ast::Extension::kF16);
auto* s = Structure("S", utils::Vector{Member("x", ty.f16(Source{{12, 34}}))});
auto* a1 = Alias("a1", ty.Of(s));
auto* a2 = Alias("a2", ty.Of(a1));
GlobalVar("g", ty.Of(a2), ast::StorageClass::kStorage, ast::Access::kRead, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("12:34 error: using f16 types in 'storage' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferPointer) {
// var<storage> g : ptr<private, f32>;
GlobalVar(Source{{56, 78}}, "g", ty.pointer(ty.f32(), ast::StorageClass::kPrivate),
ast::StorageClass::kStorage, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'ptr<private, f32, read_write>' cannot be used in storage class 'storage' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferIntScalar) {
// var<storage> g : i32;
GlobalVar(Source{{56, 78}}, "g", ty.i32(), ast::StorageClass::kStorage, Binding(0_a),
Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferVectorF32) {
// var<storage> g : vec4<f32>;
GlobalVar(Source{{56, 78}}, "g", ty.vec4<f32>(), ast::StorageClass::kStorage, Binding(0_a),
Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferArrayF32) {
// var<storage, read> g : array<S, 3u>;
auto* s = Structure("S", utils::Vector{Member("a", ty.f32())});
auto* a = ty.array(ty.Of(s), 3_u);
GlobalVar(Source{{56, 78}}, "g", a, ast::StorageClass::kStorage, ast::Access::kRead,
Binding(0_a), Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, NotStorage_AccessMode) {
// var<private, read> g : a;
GlobalVar(Source{{56, 78}}, "g", ty.i32(), ast::StorageClass::kPrivate, ast::Access::kRead);
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: only variables in <storage> storage class may declare an access mode)");
}
TEST_F(ResolverStorageClassValidationTest, Storage_ReadAccessMode) {
// @group(0) @binding(0) var<storage, read> a : i32;
GlobalVar(Source{{56, 78}}, "a", ty.i32(), ast::StorageClass::kStorage, ast::Access::kRead,
Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, Storage_ReadWriteAccessMode) {
// @group(0) @binding(0) var<storage, read_write> a : i32;
GlobalVar(Source{{56, 78}}, "a", ty.i32(), ast::StorageClass::kStorage, ast::Access::kReadWrite,
Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, Storage_WriteAccessMode) {
// @group(0) @binding(0) var<storage, read_write> a : i32;
GlobalVar(Source{{56, 78}}, "a", ty.i32(), ast::StorageClass::kStorage, ast::Access::kWrite,
Group(0_a), Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: access mode 'write' is not valid for the 'storage' address space)");
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferStructI32) {
// struct S { x : i32 };
// var<storage, read> g : S;
auto* s = Structure("S", utils::Vector{Member(Source{{12, 34}}, "x", ty.i32())});
GlobalVar(Source{{56, 78}}, "g", ty.Of(s), ast::StorageClass::kStorage, ast::Access::kRead,
Binding(0_a), Group(0_a));
ASSERT_TRUE(r()->Resolve());
}
TEST_F(ResolverStorageClassValidationTest, StorageBufferNoErrorStructI32Aliases) {
// struct S { x : i32 };
// type a1 = S;
// var<storage, read> g : a1;
auto* s = Structure("S", utils::Vector{Member(Source{{12, 34}}, "x", ty.i32())});
auto* a1 = Alias("a1", ty.Of(s));
auto* a2 = Alias("a2", ty.Of(a1));
GlobalVar(Source{{56, 78}}, "g", ty.Of(a2), ast::StorageClass::kStorage, ast::Access::kRead,
Binding(0_a), Group(0_a));
ASSERT_TRUE(r()->Resolve());
}
TEST_F(ResolverStorageClassValidationTest, UniformBuffer_Struct_Runtime) {
// struct S { m: array<f32>; };
// @group(0) @binding(0) var<uniform, > svar : S;
auto* s = Structure(Source{{12, 34}}, "S", utils::Vector{Member("m", ty.array<i32>())});
GlobalVar(Source{{56, 78}}, "svar", ty.Of(s), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
R"(56:78 error: runtime-sized arrays can only be used in the <storage> storage class
note: while analysing structure member S.m
56:78 note: while instantiating 'var' svar)");
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferBool) {
// var<uniform> g : bool;
GlobalVar(Source{{56, 78}}, "g", ty.bool_(), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'bool' cannot be used in storage class 'uniform' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferBoolAlias) {
// type a = bool;
// var<uniform> g : a;
auto* a = Alias("a", ty.bool_());
GlobalVar(Source{{56, 78}}, "g", ty.Of(a), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'bool' cannot be used in storage class 'uniform' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
// F16 types in storage and uniform buffer is not implemented yet.
// TODO(tint:1473, tint:1502): make these testcases valid after f16 is supported.
TEST_F(ResolverStorageClassValidationTest, UniformBufferF16_TemporallyBan) {
// var<uniform> g : f16;
Enable(ast::Extension::kF16);
GlobalVar("g", ty.f16(Source{{56, 78}}), ast::StorageClass::kUniform, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"56:78 error: using f16 types in 'uniform' storage class is not "
"implemented yet");
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferF16Alias_TemporallyBan) {
// type a = f16;
// var<uniform> g : a;
Enable(ast::Extension::kF16);
auto* a = Alias("a", ty.f16());
GlobalVar("g", ty.type_name(Source{{56, 78}}, a->name), ast::StorageClass::kUniform,
Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"56:78 error: using f16 types in 'uniform' storage class is not "
"implemented yet");
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferVectorF16_TemporallyBan) {
// var<uniform> g : vec4<f16>;
Enable(ast::Extension::kF16);
GlobalVar("g", ty.vec(Source{{56, 78}}, ty.Of<f16>(), 4u), ast::StorageClass::kUniform,
Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("56:78 error: using f16 types in 'uniform' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferArrayF16_TemporallyBan) {
// struct S {
// @size(16) f : f16;
// }
// var<uniform> g : array<S, 3u>;
Enable(ast::Extension::kF16);
auto* s = Structure(
"S", utils::Vector{Member("a", ty.f16(Source{{56, 78}}), utils::Vector{MemberSize(16_a)})});
auto* a = ty.array(ty.Of(s), 3_u);
GlobalVar("g", a, ast::StorageClass::kUniform, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("56:78 error: using f16 types in 'uniform' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferStructF16_TemporallyBan) {
// struct S { x : f16 };
// var<uniform> g : S;
Enable(ast::Extension::kF16);
auto* s = Structure("S", utils::Vector{Member("x", ty.f16(Source{{12, 34}}))});
GlobalVar("g", ty.Of(s), ast::StorageClass::kUniform, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("12:34 error: using f16 types in 'uniform' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferStructF16Aliases_TemporallyBan) {
// struct S { x : f16 };
// type a1 = S;
// var<uniform> g : a1;
Enable(ast::Extension::kF16);
auto* s = Structure("S", utils::Vector{Member("x", ty.f16(Source{{12, 34}}))});
auto* a1 = Alias("a1", ty.Of(s));
GlobalVar("g", ty.Of(a1), ast::StorageClass::kUniform, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_THAT(r()->error(), HasSubstr("12:34 error: using f16 types in 'uniform' storage "
"class is not implemented yet"));
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferPointer) {
// var<uniform> g : ptr<private, f32>;
GlobalVar(Source{{56, 78}}, "g", ty.pointer(ty.f32(), ast::StorageClass::kPrivate),
ast::StorageClass::kUniform, Binding(0_a), Group(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'ptr<private, f32, read_write>' cannot be used in storage class 'uniform' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferIntScalar) {
// var<uniform> g : i32;
GlobalVar(Source{{56, 78}}, "g", ty.i32(), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferVectorF32) {
// var<uniform> g : vec4<f32>;
GlobalVar(Source{{56, 78}}, "g", ty.vec4<f32>(), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferArrayF32) {
// struct S {
// @size(16) f : f32;
// }
// var<uniform> g : array<S, 3u>;
auto* s = Structure("S", utils::Vector{Member("a", ty.f32(), utils::Vector{MemberSize(16_a)})});
auto* a = ty.array(ty.Of(s), 3_u);
GlobalVar(Source{{56, 78}}, "g", a, ast::StorageClass::kUniform, Binding(0_a), Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferStructI32) {
// struct S { x : i32 };
// var<uniform> g : S;
auto* s = Structure("S", utils::Vector{Member(Source{{12, 34}}, "x", ty.i32())});
GlobalVar(Source{{56, 78}}, "g", ty.Of(s), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, UniformBufferStructI32Aliases) {
// struct S { x : i32 };
// type a1 = S;
// var<uniform> g : a1;
auto* s = Structure("S", utils::Vector{Member(Source{{12, 34}}, "x", ty.i32())});
auto* a1 = Alias("a1", ty.Of(s));
GlobalVar(Source{{56, 78}}, "g", ty.Of(a1), ast::StorageClass::kUniform, Binding(0_a),
Group(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, PushConstantBool) {
// enable chromium_experimental_push_constant;
// var<push_constant> g : bool;
Enable(ast::Extension::kChromiumExperimentalPushConstant);
GlobalVar(Source{{56, 78}}, "g", ty.bool_(), ast::StorageClass::kPushConstant);
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'bool' cannot be used in storage class 'push_constant' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
TEST_F(ResolverStorageClassValidationTest, PushConstantF16) {
// enable chromium_experimental_push_constant;
// enable f16;
// var<push_constant> g : f16;
Enable(ast::Extension::kF16);
Enable(ast::Extension::kChromiumExperimentalPushConstant);
GlobalVar("g", ty.f16(Source{{56, 78}}), ast::StorageClass::kPushConstant);
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(r()->error(),
"56:78 error: using f16 types in 'push_constant' storage class is not "
"implemented yet");
}
TEST_F(ResolverStorageClassValidationTest, PushConstantPointer) {
// enable chromium_experimental_push_constant;
// var<push_constant> g : ptr<private, f32>;
Enable(ast::Extension::kChromiumExperimentalPushConstant);
GlobalVar(Source{{56, 78}}, "g", ty.pointer(ty.f32(), ast::StorageClass::kPrivate),
ast::StorageClass::kPushConstant);
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: Type 'ptr<private, f32, read_write>' cannot be used in storage class 'push_constant' as it is non-host-shareable
56:78 note: while instantiating 'var' g)");
}
TEST_F(ResolverStorageClassValidationTest, PushConstantIntScalar) {
// enable chromium_experimental_push_constant;
// var<push_constant> g : i32;
Enable(ast::Extension::kChromiumExperimentalPushConstant);
GlobalVar("g", ty.i32(), ast::StorageClass::kPushConstant);
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, PushConstantVectorF32) {
// enable chromium_experimental_push_constant;
// var<push_constant> g : vec4<f32>;
Enable(ast::Extension::kChromiumExperimentalPushConstant);
GlobalVar("g", ty.vec4<f32>(), ast::StorageClass::kPushConstant);
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, PushConstantArrayF32) {
// enable chromium_experimental_push_constant;
// struct S { a : f32}
// var<push_constant> g : array<S, 3u>;
Enable(ast::Extension::kChromiumExperimentalPushConstant);
auto* s = Structure("S", utils::Vector{Member("a", ty.f32())});
auto* a = ty.array(ty.Of(s), 3_u);
GlobalVar("g", a, ast::StorageClass::kPushConstant);
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverStorageClassValidationTest, PushConstantWithInitializer) {
// enable chromium_experimental_push_constant;
// var<push_constant> a : u32 = 0u;
Enable(ast::Extension::kChromiumExperimentalPushConstant);
GlobalVar(Source{{1u, 2u}}, "a", ty.u32(), ast::StorageClass::kPushConstant,
Expr(Source{{3u, 4u}}, u32(0)));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(1:2 error: var of storage class 'push_constant' cannot have an initializer. var initializers are only supported for the storage classes 'private' and 'function')");
}
} // namespace
} // namespace tint::resolver