Tristan Guichaoua 44c769f7b9 Improve TypeUuid's derive macro error messages (#9315) ... # Objective - Better error message - More idiomatic code ## Solution Refactorize `TypeUuid` macros to use `syn::Result` instead of panic. ## Before/After error messages ### Missing `#[uuid]` attribtue #### Before ``` error: proc-macro derive panicked --> src\main.rs:1:10 | 1 | #[derive(TypeUuid)] | ^^^^^^^^ | = help: message: No `#[uuid = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"` attribute found. ``` #### After ``` error: No `#[uuid = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"]` attribute found. --> src\main.rs:3:10 | 3 | #[derive(TypeUuid)] | ^^^^^^^^ | = note: this error originates in the derive macro `TypeUuid` (in Nightly builds, run with -Z macro-backtrace for more info) ``` ### Malformed attribute #### Before ``` error: proc-macro derive panicked --> src\main.rs:3:10 | 3 | #[derive(TypeUuid)] | ^^^^^^^^ | = help: message: `uuid` attribute must take the form `#[uuid = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"`. ``` #### After ``` error: `uuid` attribute must take the form `#[uuid = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"]`. --> src\main.rs:4:1 | 4 | #[uuid = 42] | ^^^^^^^^^^^^ ``` ### UUID parse fail #### Before ``` error: proc-macro derive panicked --> src\main.rs:3:10 | 3 | #[derive(TypeUuid)] | ^^^^^^^^ | = help: message: Value specified to `#[uuid]` attribute is not a valid UUID.: Error(SimpleLength { len: 3 }) ``` #### After ``` error: Invalid UUID: invalid length: expected length 32 for simple format, found 3 --> src\main.rs:4:10 | 4 | #[uuid = "000"] | ^^^^^ ``` ### With [Error Lens](https://marketplace.visualstudio.com/items?itemName=usernamehw.errorlens) #### Before  #### After  --- ## Changelog - `#[derive(TypeUuid)]` provide better error messages.		2023-10-02 12:42:01 +00:00
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reflect_derive	Fix CI for Rust 1.72 (#9562)	2023-08-25 12:34:24 +00:00
type_uuid_derive	Improve TypeUuid's derive macro error messages (#9315)	2023-10-02 12:42:01 +00:00
reflect_derive.rs	bevy_reflect: Add compile fail tests for bevy_reflect (#7041)	2023-01-02 21:07:33 +00:00
type_uuid_derive.rs	Improve TypeUuid's derive macro error messages (#9315)	2023-10-02 12:42:01 +00:00