push_constant_helper.h | Explore in Territory

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#ifndef SRC_TINT_LANG_WGSL_AST_TRANSFORM_PUSH_CONSTANT_HELPER_H_
#define SRC_TINT_LANG_WGSL_AST_TRANSFORM_PUSH_CONSTANT_HELPER_H_

#include <map>

#include "src/tint/utils/symbol/symbol.h"

namespace tint::program {
class CloneContext;
}
namespace tint::ast {
struct Type;
class Struct;
class StructMember;
class Variable;
}  // namespace tint::ast
namespace tint::ast::transform {

/// A helper that manages the finding, reading, and modifying of push_constant blocks.
/// This is used by transforms that wish to add new data to the single push_constant block
/// which is allowed per entry point.
///
/// Usage:
/// 1) Instantiate the helper with a CloneContext in which nodes are to be created.
/// 2) Add new data members to the push_context block with InsertMember().
/// 3) Call Run() to insert the push_constant block into the AST and remove the old block.
/// 4) Ensure that the helper lives until the CloneContext's Clone() method is called.
class PushConstantHelper { … };

}  // namespace tint::ast::transform

#endif  // SRC_TINT_LANG_WGSL_AST_TRANSFORM_PUSH_CONSTANT_HELPER_H_
chromium/third_party/dawn/src/tint/lang/wgsl/ast/transform/push_constant_helper.h
