Merge pull request #854 from brisad/object-bindings

Add the last four bindings for Object

Author: fitzgen

crates/js-sys/src/lib.rs

@@ -2014,6 +2014,16 @@ extern "C" {
     #[wasm_bindgen(static_method_of = Object, js_name = defineProperties)]
     pub fn define_properties(obj: &Object, props: &Object) -> Object;
 
+    /// The Object.entries() method returns an array of a given
+    /// object's own enumerable property [key, value] pairs, in the
+    /// same order as that provided by a for...in loop (the difference
+    /// being that a for-in loop enumerates properties in the
+    /// prototype chain as well).
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries)
+    #[wasm_bindgen(static_method_of = Object)]
+    pub fn entries(object: &Object) -> Array;
+
     /// The `Object.freeze()` method freezes an object: that is, prevents new
     /// properties from being added to it; prevents existing properties from
     /// being removed; and prevents existing properties, or their enumerability,
@@ -2040,6 +2050,29 @@ extern "C" {
     #[wasm_bindgen(static_method_of = Object, js_name = getOwnPropertyDescriptors)]
     pub fn get_own_property_descriptors(obj: &Object) -> JsValue;
 
+    /// The Object.getOwnPropertyNames() method returns an array of
+    /// all properties (including non-enumerable properties except for
+    /// those which use Symbol) found directly upon a given object.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyNames)
+    #[wasm_bindgen(static_method_of = Object, js_name = getOwnPropertyNames)]
+    pub fn get_own_property_names(obj: &Object) -> Array;
+
+    /// The Object.getOwnPropertySymbols() method returns an array of
+    /// all symbol properties found directly upon a given object.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertySymbols)
+    #[wasm_bindgen(static_method_of = Object, js_name = getOwnPropertySymbols)]
+    pub fn get_own_property_symbols(obj: &Object) -> Array;
+
+    /// The Object.getPrototypeOf() method returns the prototype
+    /// (i.e. the value of the internal [[Prototype]] property) of the
+    /// specified object.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getPrototypeOf)
+    #[wasm_bindgen(static_method_of = Object, js_name = getPrototypeOf)]
+    pub fn get_prototype_of(obj: &JsValue) -> Object;
+
     /// The `hasOwnProperty()` method returns a boolean indicating whether the
     /// object has the specified property as its own property (as opposed to
     /// inheriting it).

crates/js-sys/tests/wasm/Object.rs

@@ -10,6 +10,11 @@ extern "C" {
     #[wasm_bindgen(method, setter, structural)]
     fn set_foo(this: &Foo42, val: JsValue);
 
+    #[wasm_bindgen(js_name = prototype, js_namespace = Object)]
+    static OBJECT_PROTOTYPE: JsValue;
+    #[wasm_bindgen(js_name = prototype, js_namespace = Array)]
+    static ARRAY_PROTOTYPE: JsValue;
+
     type DefinePropertyAttrs;
     #[wasm_bindgen(method, setter, structural)]
     fn set_value(this: &DefinePropertyAttrs, val: &JsValue);
@@ -105,6 +110,19 @@ fn define_properties() {
     assert!(foo.has_own_property(&"car".into()));
 }
 
+#[wasm_bindgen_test]
+fn entries() {
+    let entries = Object::entries(&foo_42());
+    assert_eq!(entries.length(), 1);
+    entries.for_each(&mut |x, _, _| {
+        assert!(x.is_object());
+        let array: Array = x.into();
+        assert_eq!(array.shift(), "foo");
+        assert_eq!(array.shift(), 42);
+        assert_eq!(array.length(), 0);
+    });
+}
+
 #[wasm_bindgen_test]
 fn get_own_property_descriptor() {
     let foo = foo_42();
@@ -122,6 +140,29 @@ fn get_own_property_descriptors() {
     assert_eq!(PropertyDescriptor::from(foo_desc).value(), 42);
 }
 
+#[wasm_bindgen_test]
+fn get_own_property_names() {
+    let names = Object::get_own_property_names(&foo_42());
+    assert_eq!(names.length(), 1);
+    names.for_each(&mut |x, _, _| {
+        assert_eq!(x, "foo");
+    });
+}
+
+#[wasm_bindgen_test]
+fn get_own_property_symbols() {
+    let symbols = Object::get_own_property_symbols(&map_with_symbol_key());
+    assert_eq!(symbols.length(), 1);
+}
+
+#[wasm_bindgen_test]
+fn get_prototype_of() {
+    let proto = JsValue::from(Object::get_prototype_of(&Object::new().into()));
+    assert_eq!(proto, *OBJECT_PROTOTYPE);
+    let proto = JsValue::from(Object::get_prototype_of(&Array::new().into()));
+    assert_eq!(proto, *ARRAY_PROTOTYPE);
+}
+
 #[wasm_bindgen_test]
 fn has_own_property() {
     assert!(foo_42().has_own_property(&"foo".into()));