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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>
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
// Copyright 2021 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_TRANSFORM_CALCULATE_ARRAY_LENGTH_H_
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#define SRC_TRANSFORM_CALCULATE_ARRAY_LENGTH_H_
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#include <string>
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#include "src/ast/internal_decoration.h"
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#include "src/transform/transform.h"
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namespace tint {
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// Forward declarations
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class CloneContext;
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namespace transform {
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/// CalculateArrayLength is a transform used to replace calls to arrayLength()
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/// with a value calculated from the size of the storage buffer.
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class CalculateArrayLength : public Castable<CalculateArrayLength, Transform> {
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public:
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/// BufferSizeIntrinsic is an InternalDecoration that's applied to intrinsic
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/// functions used to obtain the runtime size of a storage buffer.
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class BufferSizeIntrinsic
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: public Castable<BufferSizeIntrinsic, ast::InternalDecoration> {
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public:
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/// Constructor
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/// @param program_id the identifier of the program that owns this node
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explicit BufferSizeIntrinsic(ProgramID program_id);
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/// Destructor
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~BufferSizeIntrinsic() override;
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/// @return "buffer_size"
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std::string InternalName() const override;
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/// Performs a deep clone of this object using the CloneContext `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned object
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const BufferSizeIntrinsic* Clone(CloneContext* ctx) const override;
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};
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/// Constructor
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CalculateArrayLength();
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/// Destructor
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~CalculateArrayLength() override;
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protected:
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/// Runs the transform using the CloneContext built for transforming a
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/// program. Run() is responsible for calling Clone() on the CloneContext.
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/// @param ctx the CloneContext primed with the input program and
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/// ProgramBuilder
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/// @param inputs optional extra transform-specific input data
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/// @param outputs optional extra transform-specific output data
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void Run(CloneContext& ctx, const DataMap& inputs, DataMap& outputs) override;
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};
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} // namespace transform
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} // namespace tint
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#endif // SRC_TRANSFORM_CALCULATE_ARRAY_LENGTH_H_
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