support for top-level WIT resources

[ctaggart]

I would really love to see support for WIT resources https://component-model.bytecodealliance.org/design/wit.html#resources . I tried to use them and received the "not yet implemented" error. My cowsay.wit just added a resource:

package local:cowsay;
world cowsay {
  export test: func() -> string;
  export ts-version: func() -> string;
  resource compiler-options {
    constructor();
  }
}

The error looks to be raised from this todo:

jco/crates/js-component-bindgen/src/ts_bindgen.rs

Lines 159 to 160 in f0eabad

	TypeDefKind::Resource => todo!(),
	TypeDefKind::Handle(_) => todo!(),

$ bunx jco transpile cowsay.wasm -o dist
thread '<unnamed>' panicked at crates/js-component-bindgen/src/ts_bindgen.rs:159:50:
not yet implemented
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
(jco transpile) RuntimeError: unreachable
    at js_component_bindgen_component.wasm.__rust_start_panic (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43527]:0x10844a8)
    at js_component_bindgen_component.wasm.rust_panic (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43520]:0x108403a)
    at js_component_bindgen_component.wasm._ZN3std9panicking20rust_panic_with_hook17h002a9d757cec9266E (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43518]:0x1083ea0)
    at js_component_bindgen_component.wasm._ZN3std9panicking19begin_panic_handler28_$u7b$$u7b$closure$u7d$$u7d$17h5e11e16f0cbe0dd6E (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43503]:0x1083101)
    at js_component_bindgen_component.wasm._ZN3std3sys9backtrace26__rust_end_short_backtrace17h34d7c06dcd4fe40dE (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43502]:0x1083040)
    at js_component_bindgen_component.wasm.rust_begin_unwind (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43510]:0x10837f0)
    at js_component_bindgen_component.wasm._ZN4core9panicking9panic_fmt17h7e49d43cccf0228eE (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43665]:0x1092409)
    at js_component_bindgen_component.wasm._ZN4core9panicking5panic17h5b9417a441e14606E (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[43677]:0x1093c1f)
    at js_component_bindgen_component.wasm._ZN20js_component_bindgen10ts_bindgen10ts_bindgen17hab2dd0c35ae02bc7E (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[4482]:0x234b85)
    at js_component_bindgen_component.wasm._ZN20js_component_bindgen9transpile17h41ffb8ce162c7f32E (wasm://wasm/js_component_bindgen_component.wasm-19499d82:wasm-function[4516]:0x245b3b)
error: script "transpile" exited with code 1
error: script "build" exited with code 1

[guybedford]

Resources are only supported nested inside of interfaces currently - this new feature supporting top-level resource world items would be great to support.

[cataggar]

I did not realize they should work inside of interfaces. Thank you. Will try.