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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "gtest/gtest-spi.h"
#include "src/ast/override_decoration.h"
#include "src/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using VariableTest = TestHelper;
TEST_F(VariableTest, Creation) {
auto* v = Var("my_var", ty.i32(), StorageClass::kFunction);
EXPECT_EQ(v->symbol, Symbol(1, ID()));
EXPECT_EQ(v->declared_storage_class, StorageClass::kFunction);
EXPECT_TRUE(v->type->Is<ast::I32>());
EXPECT_EQ(v->source.range.begin.line, 0u);
EXPECT_EQ(v->source.range.begin.column, 0u);
EXPECT_EQ(v->source.range.end.line, 0u);
EXPECT_EQ(v->source.range.end.column, 0u);
}
TEST_F(VariableTest, CreationWithSource) {
auto* v = Var(
Source{Source::Range{Source::Location{27, 4}, Source::Location{27, 5}}},
"i", ty.f32(), StorageClass::kPrivate, nullptr, DecorationList{});
EXPECT_EQ(v->symbol, Symbol(1, ID()));
EXPECT_EQ(v->declared_storage_class, StorageClass::kPrivate);
EXPECT_TRUE(v->type->Is<ast::F32>());
EXPECT_EQ(v->source.range.begin.line, 27u);
EXPECT_EQ(v->source.range.begin.column, 4u);
EXPECT_EQ(v->source.range.end.line, 27u);
EXPECT_EQ(v->source.range.end.column, 5u);
}
TEST_F(VariableTest, CreationEmpty) {
auto* v = Var(
Source{Source::Range{Source::Location{27, 4}, Source::Location{27, 7}}},
"a_var", ty.i32(), StorageClass::kWorkgroup, nullptr, DecorationList{});
EXPECT_EQ(v->symbol, Symbol(1, ID()));
EXPECT_EQ(v->declared_storage_class, StorageClass::kWorkgroup);
EXPECT_TRUE(v->type->Is<ast::I32>());
EXPECT_EQ(v->source.range.begin.line, 27u);
EXPECT_EQ(v->source.range.begin.column, 4u);
EXPECT_EQ(v->source.range.end.line, 27u);
EXPECT_EQ(v->source.range.end.column, 7u);
}
TEST_F(VariableTest, Assert_MissingSymbol) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.Var("", b.ty.i32(), StorageClass::kNone);
},
"internal compiler error");
}
TEST_F(VariableTest, Assert_DifferentProgramID_Symbol) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Var(b2.Sym("x"), b1.ty.f32(), StorageClass::kNone);
},
"internal compiler error");
}
TEST_F(VariableTest, Assert_DifferentProgramID_Constructor) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Var("x", b1.ty.f32(), StorageClass::kNone, b2.Expr(1.2f));
},
"internal compiler error");
}
TEST_F(VariableTest, WithDecorations) {
auto* var = Var("my_var", ty.i32(), StorageClass::kFunction, nullptr,
DecorationList{
create<LocationDecoration>(1),
create<BuiltinDecoration>(Builtin::kPosition),
create<OverrideDecoration>(1200),
});
auto& decorations = var->decorations;
EXPECT_TRUE(ast::HasDecoration<ast::LocationDecoration>(decorations));
EXPECT_TRUE(ast::HasDecoration<ast::BuiltinDecoration>(decorations));
EXPECT_TRUE(ast::HasDecoration<ast::OverrideDecoration>(decorations));
auto* location = ast::GetDecoration<ast::LocationDecoration>(decorations);
ASSERT_NE(nullptr, location);
EXPECT_EQ(1u, location->value);
}
TEST_F(VariableTest, BindingPoint) {
auto* var = Var("my_var", ty.i32(), StorageClass::kFunction, nullptr,
DecorationList{
create<BindingDecoration>(2),
create<GroupDecoration>(1),
});
EXPECT_TRUE(var->BindingPoint());
ASSERT_NE(var->BindingPoint().binding, nullptr);
ASSERT_NE(var->BindingPoint().group, nullptr);
EXPECT_EQ(var->BindingPoint().binding->value, 2u);
EXPECT_EQ(var->BindingPoint().group->value, 1u);
}
TEST_F(VariableTest, BindingPointoDecorations) {
auto* var = Var("my_var", ty.i32(), StorageClass::kFunction, nullptr,
DecorationList{});
EXPECT_FALSE(var->BindingPoint());
EXPECT_EQ(var->BindingPoint().group, nullptr);
EXPECT_EQ(var->BindingPoint().binding, nullptr);
}
TEST_F(VariableTest, BindingPointMissingGroupDecoration) {
auto* var = Var("my_var", ty.i32(), StorageClass::kFunction, nullptr,
DecorationList{
create<BindingDecoration>(2),
});
EXPECT_FALSE(var->BindingPoint());
ASSERT_NE(var->BindingPoint().binding, nullptr);
EXPECT_EQ(var->BindingPoint().binding->value, 2u);
EXPECT_EQ(var->BindingPoint().group, nullptr);
}
TEST_F(VariableTest, BindingPointMissingBindingDecoration) {
auto* var = Var("my_var", ty.i32(), StorageClass::kFunction, nullptr,
DecorationList{create<GroupDecoration>(1)});
EXPECT_FALSE(var->BindingPoint());
ASSERT_NE(var->BindingPoint().group, nullptr);
EXPECT_EQ(var->BindingPoint().group->value, 1u);
EXPECT_EQ(var->BindingPoint().binding, nullptr);
}
} // namespace
} // namespace ast
} // namespace tint