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// Copyright 2021 The Dawn & Tint Authors
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#ifndef SRC_TINT_LANG_WGSL_AST_TRANSFORM_ADD_BLOCK_ATTRIBUTE_H_
#define SRC_TINT_LANG_WGSL_AST_TRANSFORM_ADD_BLOCK_ATTRIBUTE_H_
#include <string>
#include "src/tint/lang/wgsl/ast/internal_attribute.h"
#include "src/tint/lang/wgsl/ast/transform/transform.h"
namespace tint::ast::transform {
/// AddBlockAttribute is a transform that wrap the store type of a buffer into a struct if possible,
/// then adds an `@internal(block)` attribute to the wrapper struct.
class AddBlockAttribute final : public Castable<AddBlockAttribute, Transform> {
public:
/// BlockAttribute is an InternalAttribute that is used to decorate a
/// structure that is used as a buffer in SPIR-V or GLSL.
class BlockAttribute final : public Castable<BlockAttribute, InternalAttribute> {
public:
/// Constructor
/// @param generation_id the identifier of the program that owns this node
/// @param nid the unique node identifier
BlockAttribute(GenerationID generation_id, NodeID nid);
/// Destructor
~BlockAttribute() override;
/// @return a short description of the internal attribute which will be
/// displayed as `@internal(<name>)`
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
const BlockAttribute* Clone(CloneContext& ctx) const override;
};
/// Constructor
AddBlockAttribute();
/// Destructor
~AddBlockAttribute() override;
/// @copydoc Transform::Apply
ApplyResult Apply(const Program& program,
const DataMap& inputs,
DataMap& outputs) const override;
};
} // namespace tint::ast::transform
#endif // SRC_TINT_LANG_WGSL_AST_TRANSFORM_ADD_BLOCK_ATTRIBUTE_H_