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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/tint/ast/id_attribute.h"
#include "src/tint/ast/test_helper.h"
#include "src/tint/builtin/builtin_value.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::ast {
namespace {
using VariableTest = TestHelper;
TEST_F(VariableTest, Creation) {
auto* v = Var("my_var", ty.i32(), builtin::AddressSpace::kFunction);
CheckIdentifier(Symbols(), v->name, "my_var");
CheckIdentifier(Symbols(), v->declared_address_space, "function");
EXPECT_EQ(v->declared_access, nullptr);
CheckIdentifier(Symbols(), v->type, "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(), builtin::AddressSpace::kPrivate, utils::Empty);
CheckIdentifier(Symbols(), v->name, "i");
CheckIdentifier(Symbols(), v->declared_address_space, "private");
CheckIdentifier(Symbols(), v->type, "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(), builtin::AddressSpace::kWorkgroup, utils::Empty);
CheckIdentifier(Symbols(), v->name, "a_var");
CheckIdentifier(Symbols(), v->declared_address_space, "workgroup");
CheckIdentifier(Symbols(), v->type, "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_Null_Name) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.Var(static_cast<Identifier*>(nullptr), b.ty.i32());
},
"internal compiler error");
}
TEST_F(VariableTest, Assert_DifferentProgramID_Symbol) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Var(b2.Sym("x"), b1.ty.f32());
},
"internal compiler error");
}
TEST_F(VariableTest, Assert_DifferentProgramID_Initializer) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Var("x", b1.ty.f32(), b2.Expr(1.2_f));
},
"internal compiler error");
}
TEST_F(VariableTest, WithAttributes) {
auto* var = Var("my_var", ty.i32(), builtin::AddressSpace::kFunction, Location(1_u),
Builtin(builtin::BuiltinValue::kPosition), Id(1200_u));
auto& attributes = var->attributes;
EXPECT_TRUE(ast::HasAttribute<LocationAttribute>(attributes));
EXPECT_TRUE(ast::HasAttribute<BuiltinAttribute>(attributes));
EXPECT_TRUE(ast::HasAttribute<IdAttribute>(attributes));
auto* location = GetAttribute<LocationAttribute>(attributes);
ASSERT_NE(nullptr, location);
ASSERT_NE(nullptr, location->expr);
EXPECT_TRUE(location->expr->Is<IntLiteralExpression>());
}
TEST_F(VariableTest, HasBindingPoint_BothProvided) {
auto* var = Var("my_var", ty.i32(), builtin::AddressSpace::kFunction, Binding(2_a), Group(1_a));
EXPECT_TRUE(var->HasBindingPoint());
}
TEST_F(VariableTest, HasBindingPoint_NeitherProvided) {
auto* var = Var("my_var", ty.i32(), builtin::AddressSpace::kFunction, utils::Empty);
EXPECT_FALSE(var->HasBindingPoint());
}
TEST_F(VariableTest, HasBindingPoint_MissingGroupAttribute) {
auto* var = Var("my_var", ty.i32(), builtin::AddressSpace::kFunction, Binding(2_a));
EXPECT_FALSE(var->HasBindingPoint());
}
TEST_F(VariableTest, HasBindingPoint_MissingBindingAttribute) {
auto* var = Var("my_var", ty.i32(), builtin::AddressSpace::kFunction, Group(1_a));
EXPECT_FALSE(var->HasBindingPoint());
}
} // namespace
} // namespace tint::ast