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| #ifndef SRC_TINT_LANG_WGSL_AST_TRANSFORM_PROMOTE_INITIALIZERS_TO_LET_H_ |
| #define SRC_TINT_LANG_WGSL_AST_TRANSFORM_PROMOTE_INITIALIZERS_TO_LET_H_ |
| |
| #include "src/tint/lang/wgsl/ast/transform/transform.h" |
| |
| namespace tint::ast::transform { |
| |
| /// A transform that hoists array and structure initializers, and identifiers resolving to a |
| /// 'const' array to a 'let' variable, declared just before the statement of usage. |
| /// This transform is used by backends that do not support expressions that operate on an immediate |
| /// array or structure. For example, the following is not immediately expressible for HLSL: |
| /// `array<i32, 2>(1, 2)[0]` |
| /// @see crbug.com/tint/406 |
| class PromoteInitializersToLet final : public Castable<PromoteInitializersToLet, Transform> { |
| public: |
| /// Constructor |
| PromoteInitializersToLet(); |
| |
| /// Destructor |
| ~PromoteInitializersToLet() 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_PROMOTE_INITIALIZERS_TO_LET_H_ |