From 2518048f25091d4705e661a94fe669e71ff286a5 Mon Sep 17 00:00:00 2001 From: Satoshi Amemiya Date: Tue, 3 Jul 2018 20:53:17 +0900 Subject: [PATCH] Add support Symbol.hasInstance as sample of static prop getter --- src/js.rs | 14 +++++++++++++ tests/all/js_globals/Symbol.rs | 37 ++++++++++++++++++++++++++++++++++ tests/all/js_globals/mod.rs | 1 + 3 files changed, 52 insertions(+) create mode 100644 tests/all/js_globals/Symbol.rs diff --git a/src/js.rs b/src/js.rs index 4a42626ab..ff2d5eae7 100644 --- a/src/js.rs +++ b/src/js.rs @@ -1388,3 +1388,17 @@ if_std! { } } } + +// Symbol +#[wasm_bindgen] +extern "C" { + pub type Symbol; + + /// The Symbol.hasInstance well-known symbol is used to determine + /// if a constructor object recognizes an object as its instance. + /// The instanceof operator's behavior can be customized by this symbol. + /// + /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance + #[wasm_bindgen(static_method_of = Symbol, getter, structural, js_name = hasInstance)] + pub fn has_instance() -> Symbol; +} diff --git a/tests/all/js_globals/Symbol.rs b/tests/all/js_globals/Symbol.rs new file mode 100644 index 000000000..469b501cc --- /dev/null +++ b/tests/all/js_globals/Symbol.rs @@ -0,0 +1,37 @@ +#![allow(non_snake_case)] + +use project; + +#[test] +fn has_instance() { + 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 symbol_has_instance() -> js::Symbol { + js::Symbol::has_instance() + } + + "#, + ) + .file( + "test.ts", + r#" + import * as assert from "assert"; + import * as wasm from "./out"; + + export function test() { + assert.ok(wasm.symbol_has_instance()); + assert.ok([] instanceof Array); + } + "#, + ) + .test() +} diff --git a/tests/all/js_globals/mod.rs b/tests/all/js_globals/mod.rs index ee786ddae..633372e0c 100644 --- a/tests/all/js_globals/mod.rs +++ b/tests/all/js_globals/mod.rs @@ -19,6 +19,7 @@ mod Object; mod Proxy; mod Set; mod SetIterator; +mod Symbol; mod TypedArray; mod WeakMap; mod WeakSet;