dawn-cmake/src/ast/alias.cc
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

46 lines
1.3 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.
#include "src/ast/alias.h"
#include "src/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Alias);
namespace tint {
namespace ast {
Alias::Alias(ProgramID pid,
const Source& src,
const Symbol& n,
const Type* subtype)
: Base(pid, src, n), type(subtype) {
TINT_ASSERT(AST, type);
}
Alias::Alias(Alias&&) = default;
Alias::~Alias() = default;
const Alias* Alias::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto sym = ctx->Clone(name);
auto* ty = ctx->Clone(type);
return ctx->dst->create<Alias>(src, sym, ty);
}
} // namespace ast
} // namespace tint