Implement automatic NativeClass registration via inventory. Implement mix-ins.
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This adds the optional `inventory` feature, which allows `NativeClass` types to be automatically registered on supported platforms (everything that OSS Godot currently supports except WASM). Run-time diagnostic functions are added to help debug missing registration problems that are highly likely to arise when porting `inventory`-enabled projects to WASM. An internal `cfg_ex` attribute macro is added to help manage cfg conditions.
Adds the `#[methods(mixin = "Name")]` syntax for declaring mix-in blocks. Mix-in blocks have a many-to-many relationship with `NativeClass` types. Both `impl Type` and `impl Trait for Type` blocks are accepted. All mix-in blocks have to be manually registered for gdnative v0.11.x. This can be relaxed in the future with a redesign of the `NativeClass` hierarchy of traits.
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Some minor unresolved questions:
Ideas for future development:
bors try |
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Converting to draft: forgot to update documentation for the macros. Will do this later. |
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Left this hanging for a while but it should be good to go. For v0.11 I think we'll keep the feature opt-in and the examples as-is. bors r+ |
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999: Implement automatic `NativeClass` registration via inventory. Implement mix-ins. r=chitoyuu a=chitoyuu ## Implement automatic NativeClass registration via inventory This adds the optional `inventory` feature, which allows `NativeClass` types to be automatically registered on supported platforms (everything that OSS Godot currently supports except WASM). Run-time diagnostic functions are added to help debug missing registration problems that are highly likely to arise when porting `inventory`-enabled projects to WASM. An internal `cfg_ex` attribute macro is added to help manage cfg conditions. Close #350. Note that the standalone registration attribute syntax proposed by the original issue isn't implemented, for the limited usefulness -- there are much fewer cases where manual `NativeClass` impls are necessary thanks to all the improvements since the original issue. ## Implement mix-in `#[methods]` blocks Adds the `#[methods(mixin = "Name")]` syntax for declaring mix-in blocks. Mix-in blocks have a many-to-many relationship with `NativeClass` types. Both `impl Type` and `impl Trait for Type` blocks are accepted. The argument name is changed from `as` in the original proposal to `mixin`, because we might still want to keep universal `#[methods]` blocks in the future for ease of use with WASM. `#[methods(mixin)]` makes a lot more sense for a future auto-registered mixin block than `#[methods(as /* as what? */)]`. All mix-in blocks have to be manually registered for gdnative v0.11.x. Some difficulty was encountered when trying to make auto-mixins compatible with existing code. It might still be possible with some tricks like autoref-specialization, but that might be too much effort given that we likely want to re-design much of the hierarchy for 0.12. Close #984. ## Allow `#[register_with]` for `#[monomorphize]` Enables `#[monomorphize]` to take the same standalone `#[register_with]` attribute as `#[derive(NativeClass)]`. This is chosen for short term consistency, but will probably change in a later version w/ #848, which might not still get implemented for a fair bit of time. Co-authored-by: Chitose Yuuzaki <chitoyuu@potatoes.gay>
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999: Implement automatic `NativeClass` registration via inventory. Implement mix-ins. r=chitoyuu a=chitoyuu ## Implement automatic NativeClass registration via inventory This adds the optional `inventory` feature, which allows `NativeClass` types to be automatically registered on supported platforms (everything that OSS Godot currently supports except WASM). Run-time diagnostic functions are added to help debug missing registration problems that are highly likely to arise when porting `inventory`-enabled projects to WASM. An internal `cfg_ex` attribute macro is added to help manage cfg conditions. Close #350. Note that the standalone registration attribute syntax proposed by the original issue isn't implemented, for the limited usefulness -- there are much fewer cases where manual `NativeClass` impls are necessary thanks to all the improvements since the original issue. ## Implement mix-in `#[methods]` blocks Adds the `#[methods(mixin = "Name")]` syntax for declaring mix-in blocks. Mix-in blocks have a many-to-many relationship with `NativeClass` types. Both `impl Type` and `impl Trait for Type` blocks are accepted. The argument name is changed from `as` in the original proposal to `mixin`, because we might still want to keep universal `#[methods]` blocks in the future for ease of use with WASM. `#[methods(mixin)]` makes a lot more sense for a future auto-registered mixin block than `#[methods(as /* as what? */)]`. All mix-in blocks have to be manually registered for gdnative v0.11.x. Some difficulty was encountered when trying to make auto-mixins compatible with existing code. It might still be possible with some tricks like autoref-specialization, but that might be too much effort given that we likely want to re-design much of the hierarchy for 0.12. Close #984. ## Allow `#[register_with]` for `#[monomorphize]` Enables `#[monomorphize]` to take the same standalone `#[register_with]` attribute as `#[derive(NativeClass)]`. This is chosen for short term consistency, but will probably change in a later version w/ #848, which might not still get implemented for a fair bit of time. Co-authored-by: Chitose Yuuzaki <chitoyuu@potatoes.gay>
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I don't understand why it's $DIR for some of the tests and tests/ui for the others. Perhaps this is something upstream should have considered?
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This should finally do it... bors retry |
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Implement automatic NativeClass registration via inventory
This adds the optional
inventoryfeature, which allowsNativeClasstypes to be automatically registered on supported platforms (everything that OSS Godot currently supports except WASM).Run-time diagnostic functions are added to help debug missing registration problems that are highly likely to arise when porting
inventory-enabled projects to WASM.An internal
cfg_exattribute macro is added to help manage cfg conditions.Close #350. Note that the standalone registration attribute syntax proposed by the original issue isn't implemented, for the limited usefulness -- there are much fewer cases where manual
NativeClassimpls are necessary thanks to all the improvements since the original issue.Implement mix-in
#[methods]blocksAdds the
#[methods(mixin = "Name")]syntax for declaring mix-in blocks. Mix-in blocks have a many-to-many relationship withNativeClasstypes. Bothimpl Typeandimpl Trait for Typeblocks are accepted.The argument name is changed from
asin the original proposal tomixin, because we might still want to keep universal#[methods]blocks in the future for ease of use with WASM.#[methods(mixin)]makes a lot more sense for a future auto-registered mixin block than#[methods(as /* as what? */)].All mix-in blocks have to be manually registered for gdnative v0.11.x. Some difficulty was encountered when trying to make auto-mixins compatible with existing code. It might still be possible with some tricks like autoref-specialization, but that might be too much effort given that we likely want to re-design much of the hierarchy for 0.12.
Close #984.
Allow
#[register_with]for#[monomorphize]Enables
#[monomorphize]to take the same standalone#[register_with]attribute as#[derive(NativeClass)]. This is chosen for short term consistency, but will probably change in a later version w/ #848, which might not still get implemented for a fair bit of time.