add bindings for array.prototype.some() (#341)

following the example set in https://github.com/rustwasm/wasm-bindgen/pull/314
This commit is contained in:
Chris Kolodin 2018-06-28 13:57:01 -07:00 committed by Alex Crichton
parent 2f465d3d23
commit 9193218648
2 changed files with 38 additions and 0 deletions

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@ -205,6 +205,13 @@ extern {
#[wasm_bindgen(method)]
pub fn slice(this: &Array, start: u32, end: u32) -> Array;
/// The some() method tests whether at least one element in the array passes the test implemented
/// by the provided function.
/// Note: This method returns false for any condition put on an empty array.
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some
#[wasm_bindgen(method)]
pub fn some(this: &Array, predicate: &mut FnMut(JsValue) -> bool) -> bool;
/// The sort() method sorts the elements of an array in place and returns
/// the array. The sort is not necessarily stable. The default sort
/// order is according to string Unicode code points.

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@ -143,6 +143,37 @@ fn sort() {
.test()
}
#[test]
fn some() {
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 has_elem(array: &js::Array, arg: JsValue) -> bool {
array.some(&mut |elem| arg == elem)
}
"#)
.file("test.ts", r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
let elements = ["z", 1, "y", 2];
assert.deepStrictEqual(wasm.has_elem(elements, 2), true);
assert.deepStrictEqual(wasm.has_elem(elements, "y"), true);
assert.deepStrictEqual(wasm.has_elem(elements, "not an element"), false);
}
"#)
.test()
}
#[test]
fn last_index_of() {
project()