dawn-cmake/src/transform/calculate_array_length.h
Ben Clayton b5cd10c7bd Program: Track what transforms have been applied
Allows transforms to assert their dependencies have been run before they
are.

Also allows the backends to validate that their sanitizers have been run
before they're used.

Change-Id: I1e97afe06f9e7371283bade54bbb2e2c41f87a00
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55442
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-25 10:26:26 +00:00

73 lines
2.5 KiB
C++

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