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Add `ui_macros` crate & `DerivePathStr` derive macro (#17811) This PR adds the `ui_macros` crate to allow building supporting macros for the `ui` crate. Additionally, it implements the `DerivePathStr` derive macro and the `path_str` attribute macro. These macros work together to generate a `path` method for enum variants, which is useful for creating standardized string representations of enum variants. The `DerivePathStr` macro provides the following functionality: - Generates a `path` method for each enum variant. - Allows specifying a prefix (required) and suffix (optional) for all paths. - Supports `strum` attributes for case conversion (e.g., snake_case, lowercase). Usage example: ```rust #[derive(DerivePathStr)] #[path_str(prefix = "my_prefix", suffix = ".txt")] #[strum(serialize_all = "snake_case")] enum MyEnum { VariantOne, VariantTwo, } // Generated paths: // MyEnum::VariantOne.path() -> "my_prefix/variant_one.txt" // MyEnum::VariantTwo.path() -> "my_prefix/variant_two.txt" ``` In a later PR this will be used to automate the creation of icon & image paths in the `ui` crate. This gives the following benefits: 1. Ensures standard naming of assets as paths are not manually specified. 2. Makes adding new enum variants less tedious and error-prone. 3. Quickly catches missing or incorrect paths during compilation. 3. Adds a building block towards being able to lint for unused assets in the future. Release Notes: - N/A

2024-09-13 20:45:16 +00:00

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