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https://github.com/rustwasm/wasm-bindgen.git
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7b495468f6
This commit implements support for binding APIs that take
`Uint8ClampedArray` in JS. This is pretty rare but comes up in a
`web-sys` binding or two, and we're now able to bind these APIs instead
of having to omit the bindings.
The `Uint8ClampedArray` type is bound by using the `Clamped` marker
struct in Rust. For example this is declaring a JS API that takes
`Uint8ClampedArray`:
use wasm_bindgen::Clamped;
#[wasm_bindgen]
extern {
fn takes_clamped(a: Clamped<&[u8]>);
}
The `Clamped` type currently only works when wrapping the `&[u8]`, `&mut
[u8]`, and `Vec<u8>` types. Everything else will produce an error at
`wasm-bindgen` time.
Closes #421
23 lines
813 B
Rust
23 lines
813 B
Rust
use js_sys::Object;
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use wasm_bindgen::Clamped;
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use wasm_bindgen_test::*;
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include!(concat!(env!("OUT_DIR"), "/array.rs"));
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#[wasm_bindgen_test]
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fn take_and_return_a_bunch_of_slices() {
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let f = TestArrays::new().unwrap();
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assert_eq!(f.strings("y"), "x");
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assert_eq!(f.byte_strings("yz"), "xx");
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assert_eq!(f.usv_strings("abc"), "efg");
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assert_eq!(f.f32(&mut [1.0, 2.0]), [3.0, 4.0, 5.0]);
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assert_eq!(f.f64(&mut [1.0, 2.0]), [3.0, 4.0, 5.0]);
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assert_eq!(f.i8(&mut [1, 2]), [3, 4, 5]);
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assert_eq!(f.i16(&mut [1, 2]), [3, 4, 5]);
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assert_eq!(f.i32(&mut [1, 2]), [3, 4, 5]);
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assert_eq!(f.u8(&mut [1, 2]), [3, 4, 5]);
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assert_eq!(f.u16(&mut [1, 2]), [3, 4, 5]);
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assert_eq!(f.u32(&mut [1, 2]), [3, 4, 5]);
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assert_eq!(f.u8_clamped(Clamped(&mut [1, 2])).0, [3, 4, 5]);
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}
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