guide: also allow Option<bool>

This commit is contained in:
Nick Fitzgerald 2018-08-14 17:34:16 -07:00
parent 9c9e53485a
commit fea41b4a87
3 changed files with 22 additions and 1 deletions

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@ -1,9 +1,22 @@
import {
take_char_by_value,
return_char,
take_option_bool,
return_option_bool,
} from './guide_supported_types_examples';
take_bool_by_value(true);
let b = return_bool();
console.log(typeof b); // "boolean"
take_option_bool(null);
take_option_bool(undefined);
take_option_bool(true);
let c = return_option_bool();
if (c == null) {
// ...
} else {
console.log(typeof c); // "boolean"
}

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@ -7,3 +7,11 @@ pub fn take_bool_by_value(x: bool) {}
pub fn return_bool() -> bool {
true
}
#[wasm_bindgen]
pub fn take_option_bool(x: Option<bool>) {}
#[wasm_bindgen]
pub fn return_option_bool() -> Option<bool> {
Some(false)
}

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@ -107,7 +107,7 @@ garbage-collected heap and the Wasm linear memory with `TextDecoder` and
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
| Yes | No | No | Yes | No | No | A JavaScript boolean value |
| Yes | No | No | Yes | Yes | Yes | A JavaScript boolean value |
### Example Rust Usage