Ben Clayton 3fb9a3fba1 tint/sem: Rename Expression to ValueExpression
ast::IdentifierExpression may also resolve to a type or core enumerator

Bug: tint:1810
Change-Id: I85e3bea67e1146215079ec47430784f2fb39043d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/118402
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2023-02-04 21:20:26 +00:00

51 lines
1.7 KiB
C++

// Copyright 2022 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.
#ifndef SRC_TINT_SEM_LOAD_H_
#define SRC_TINT_SEM_LOAD_H_
#include "src/tint/sem/value_expression.h"
#include "src/tint/type/reference.h"
namespace tint::sem {
/// Load is a semantic expression which represents the load of a reference to a non-reference value.
/// Loads from reference types are implicit in WGSL, so the Load semantic node shares the same AST
/// node as the inner semantic node.
class Load final : public Castable<Load, ValueExpression> {
public:
/// Constructor
/// @param reference the reference expression being loaded
/// @param statement the statement that owns this expression
Load(const ValueExpression* reference, const Statement* statement);
/// Destructor
~Load() override;
/// @return the reference being loaded
const ValueExpression* Reference() const { return reference_; }
/// @returns the type of the loaded reference.
const type::Reference* ReferenceType() const {
return static_cast<const type::Reference*>(reference_->Type());
}
private:
ValueExpression const* const reference_;
};
} // namespace tint::sem
#endif // SRC_TINT_SEM_LOAD_H_