Add Array.prototype.values binding (#395)

Author: brisad

src/js.rs

@@ -339,6 +339,13 @@ extern "C" {
     /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/entries
     #[wasm_bindgen(method)]
     pub fn entries(this: &Array) -> ArrayIterator;
+
+    /// The values() method returns a new Array Iterator object that
+    /// contains the values for each index in the array.
+    ///
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/values
+    #[wasm_bindgen(method)]
+    pub fn values(this: &Array) -> ArrayIterator;
 }
 
 // Boolean

tests/all/js_globals/ArrayIterator.rs

@@ -28,9 +28,9 @@ fn keys() {
             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);
+                let numbers = [8, 5, 4, 3, 1, 2];
+                let iterator = numbers.keys();
+                let wasmIterator = wasm.get_keys(numbers);
 
                 assert.equal(iterator.toString(), wasmIterator.toString());
                 assert.equal(Array.from(iterator)[0], Array.from(wasmIterator)[0]);
@@ -66,9 +66,9 @@ fn entries() {
             import * as wasm from "./out";
 
             export function test() {
-                let characters = [8, 5, 4, 3, 1, 2]
-                let iterator = characters.entries();
-                let wasmIterator = wasm.get_entries(characters);
+                let numbers = [8, 5, 4, 3, 1, 2];
+                let iterator = numbers.entries();
+                let wasmIterator = wasm.get_entries(numbers);
                 let jsItem = iterator.next();
                 let wasmItem = wasmIterator.next();
 
@@ -79,3 +79,42 @@ fn entries() {
         )
         .test()
 }
+
+#[test]
+fn values() {
+    project()
+        .headless(true) // Node.js does not have values()
+        .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_values(this: &js::Array) -> js::ArrayIterator {
+                this.values()
+            }
+        "#,
+        )
+        .file(
+            "test.js",
+            r#"
+            import * as assert from "assert";
+            import * as wasm from "./out";
+
+            export function test() {
+                let numbers = [8, 3, 2];
+                let wasmIterator = wasm.get_values(numbers);
+
+                assert.equal(wasmIterator.next().value, 8);
+                assert.equal(wasmIterator.next().value, 3);
+                assert.equal(wasmIterator.next().value, 2);
+                assert.ok(wasmIterator.next().done);
+            }
+        "#,
+        )
+        .test()
+}