mirror of
https://github.com/rustwasm/wasm-bindgen.git
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0e11e4a3bd
An extension trait for `Option<T>` and `Result<T, E>` for unwraping the `T` value, or throwing a JS error if it is not available. These methods should have a smaller code size footprint than the normal `Option::unwrap` and `Option::expect` methods, but they are specific to working with wasm and JS. On non-wasm32 targets, defaults to the normal unwrap/expect calls.
24 lines
427 B
Rust
24 lines
427 B
Rust
extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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#[test]
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fn unwrap_throw_ok() {
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assert_eq!(Some(42).unwrap_throw(), 42);
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let x: Result<i32, ()> = Ok(42);
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assert_eq!(x.unwrap_throw(), 42);
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}
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#[test]
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#[should_panic]
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fn unwrap_throw_none() {
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let x: Option<i32> = None;
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x.unwrap_throw();
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}
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#[test]
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#[should_panic]
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fn unwrap_throw_err() {
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let x: Result<i32, ()> = Err(());
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x.unwrap_throw();
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}
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