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8648120bbe
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>
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_AST_NODE_H_
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#define SRC_AST_NODE_H_
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#include <string>
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#include "src/clone_context.h"
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namespace tint {
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// Forward declarations
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class CloneContext;
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namespace sem {
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class Type;
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}
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namespace sem {
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class Info;
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}
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namespace ast {
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/// AST base class node
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class Node : public Castable<Node, Cloneable> {
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public:
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~Node() override;
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/// The identifier of the program that owns this node
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const ProgramID program_id;
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/// The node source data
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const Source source;
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protected:
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/// Create a new node
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/// @param pid the identifier of the program that owns this node
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/// @param src the input source for the node
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Node(ProgramID pid, const Source& src);
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/// Move constructor
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Node(Node&&);
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private:
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Node(const Node&) = delete;
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};
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} // namespace ast
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/// @param node a pointer to an AST node
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/// @returns the ProgramID of the given AST node.
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inline ProgramID ProgramIDOf(const ast::Node* node) {
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return node ? node->program_id : ProgramID();
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}
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} // namespace tint
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#endif // SRC_AST_NODE_H_
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