add binding for keys method

This commit is contained in:
Matt Long 2018-06-21 17:00:02 -04:00
parent 0b29721194
commit 4cc73877a6
3 changed files with 45 additions and 0 deletions

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@ -195,5 +195,15 @@ extern {
/// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes
#[wasm_bindgen(method)]
pub fn includes(this: &Array, value: JsValue, from_index: i32) -> bool;
}
#[wasm_bindgen]
extern {
pub type ArrayIterator;
/// The keys() method returns a new Array Iterator object that contains the keys for each index in the array.
///
/// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/keys
#[wasm_bindgen(method)]
pub fn keys(this: &Array) -> ArrayIterator;
}

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@ -0,0 +1,34 @@
#![allow(non_snake_case)]
use project;
#[test]
fn keys() {
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 get_keys(this: &js::Array) -> js::ArrayIterator {
this.keys()
}
"#)
.file("test.ts", r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
let characters = [8, 5, 4, 3, 1, 2]
let iterator = characters.keys();
let wasmIterator = wasm.get_keys(characters);
assert.equal(iterator.toString(), wasmIterator.toString());
}
"#)
.test()
}

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@ -4,6 +4,7 @@ use super::project;
mod Object;
mod Array;
mod ArrayIterator;
#[test]
#[cfg(feature = "std")]