Refactor bundle derive #19749
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Refactor bundle derive #19749
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# Objective - Splitted off from bevyengine#19491 - Make adding generated code to the `Bundle` derive macro easier - Fix a bug when multiple fields are `#[bundle(ignore)]` ## Solution - Instead of accumulating the code for each method in a different `Vec`, accumulate only the names of non-ignored fields and their types, then use `quote` to generate the code for each of them in the method body. - To fix the bug, change the code populating the `BundleFieldKind` to push only one of them per-field (previously each `#[bundle(ignore)]` resulted in pushing twice, once for the correct `BundleFieldKind::Ignore` and then again unconditionally for `BundleFieldKind::Component`) ## Testing - Added a regression test for the bug that was fixed
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Objective
Optionbundles andBox<dyn Bundle>#19491Bundlederive macro easier#[bundle(ignore)]Solution
Vec, accumulate only the names of non-ignored fields and their types, then usequoteto generate the code for each of them in the method body.BundleFieldKindto push only one of them per-field (previously each#[bundle(ignore)]resulted in pushing twice, once for the correctBundleFieldKind::Ignoreand then again unconditionally forBundleFieldKind::Component)Testing