src/tint/lang/hlsl/writer/ast_raise/localize_struct_array_assignment.h

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#ifndef SRC_TINT_LANG_HLSL_WRITER_AST_RAISE_LOCALIZE_STRUCT_ARRAY_ASSIGNMENT_H_
#define SRC_TINT_LANG_HLSL_WRITER_AST_RAISE_LOCALIZE_STRUCT_ARRAY_ASSIGNMENT_H_

#include "src/tint/lang/wgsl/ast/transform/transform.h"

namespace tint::hlsl::writer {

/// This transforms replaces assignment to dynamically-indexed fixed-size arrays
/// in structs on shader-local variables with code that copies the arrays to a
/// temporary local variable, assigns to the local variable, and copies the
/// array back. This is to work around FXC's compilation failure for these cases
/// (see crbug.com/tint/1206).
///
/// @note Depends on the following transforms to have been run first:
/// * SimplifyPointers
class LocalizeStructArrayAssignment final
    : public Castable<LocalizeStructArrayAssignment, ast::transform::Transform> {
  public:
    /// Constructor
    LocalizeStructArrayAssignment();

    /// Destructor
    ~LocalizeStructArrayAssignment() override;

    /// @copydoc ast::transform::Transform::Apply
    ApplyResult Apply(const Program& program,
                      const ast::transform::DataMap& inputs,
                      ast::transform::DataMap& outputs) const override;

  private:
    struct State;
};

}  // namespace tint::hlsl::writer

#endif  // SRC_TINT_LANG_HLSL_WRITER_AST_RAISE_LOCALIZE_STRUCT_ARRAY_ASSIGNMENT_H_