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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/sem/expression.h"
#include <utility>
#include "src/tint/sem/materialize.h"
TINT_INSTANTIATE_TYPEINFO(tint::sem::Expression);
namespace tint::sem {
Expression::Expression(const ast::Expression* declaration,
const sem::Type* type,
EvaluationStage stage,
const Statement* statement,
const Constant* constant,
bool has_side_effects,
const Variable* source_var /* = nullptr */)
: declaration_(declaration),
source_variable_(source_var),
type_(type),
stage_(stage),
statement_(statement),
constant_(std::move(constant)),
has_side_effects_(has_side_effects) {
TINT_ASSERT(Semantic, type_);
TINT_ASSERT(Semantic, (constant != nullptr) == (stage == EvaluationStage::kConstant));
}
Expression::~Expression() = default;
const Expression* Expression::UnwrapMaterialize() const {
if (auto* m = As<Materialize>()) {
return m->Expr();
}
return this;
}
} // namespace tint::sem