add binding for fill

This commit is contained in:
Matt Long 2018-06-20 17:49:34 -04:00
parent e8bb0c2f98
commit d155136f0e
2 changed files with 37 additions and 0 deletions

View File

@ -126,4 +126,11 @@ extern {
/// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice
#[wasm_bindgen(method)]
pub fn slice(this: &Array, start: u32, end: u32) -> Array;
/// The fill() method fills all the elements of an array from a start index to an end index with a static value.
/// The end index is not included.
///
/// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fill
#[wasm_bindgen(method)]
pub fn fill(this: &Array, value: JsValue, start: u32, end: u32) -> Array;
}

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@ -138,4 +138,34 @@ fn slice() {
}
"#)
.test()
}
#[test]
fn fill() {
project()
.file("src/lib.rs", r#"
#![feature(proc_macro, wasm_custom_section)]
extern crate wasm_bindgen;
use wasm_bindgen::prelude::*;
use wasm_bindgen::js;
#[wasm_bindgen]
pub fn fill_with(this: &js::Array, value: JsValue, start: u32, end: u32) -> js::Array {
this.fill(value, start, end)
}
"#)
.file("test.ts", r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
let characters = ["a", "c", "x", "n", 1, "8"];
let subset = wasm.fill_with(characters, 0, 0, 3);
assert.equal(subset[0], 0);
assert.equal(subset[4], 1);
}
"#)
.test()
}