dawn-cmake/src/ast/override_decoration.h
Ben Clayton 8648120bbe Make all ast and sem pointers const
And remove a whole load of const_cast hackery.

Semantic nodes may contain internally mutable fields (although only ever modified during resolving), so these are always passed by `const` pointer.

While all AST nodes are internally immutable, we have decided that pointers to AST nodes should also be marked `const`, for consistency.

There's still a collection of const_cast calls in the Resolver. These will be fixed up in a later change.

Bug: tint:745
Change-Id: I046309b8e586772605fc0fe6b2d27f28806d40ef
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66606
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
2021-10-19 18:38:54 +00:00

59 lines
1.9 KiB
C++

// 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.
#ifndef SRC_AST_OVERRIDE_DECORATION_H_
#define SRC_AST_OVERRIDE_DECORATION_H_
#include <string>
#include "src/ast/decoration.h"
namespace tint {
namespace ast {
/// An override decoration
class OverrideDecoration : public Castable<OverrideDecoration, Decoration> {
public:
/// Create an override decoration with no specified id.
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
OverrideDecoration(ProgramID pid, const Source& src);
/// Create an override decoration with a specific id value.
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param val the override value
OverrideDecoration(ProgramID pid, const Source& src, uint32_t val);
~OverrideDecoration() override;
/// @returns the WGSL name for the decoration
std::string Name() const override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const OverrideDecoration* Clone(CloneContext* ctx) const override;
/// True if an override id was specified
const bool has_value;
/// The override id value
const uint32_t value;
};
} // namespace ast
} // namespace tint
#endif // SRC_AST_OVERRIDE_DECORATION_H_