Add support Symbol.hasInstance as sample of static prop getter

This commit is contained in:
Satoshi Amemiya 2018-07-03 20:53:17 +09:00
parent e6b2a0d98c
commit 2518048f25
3 changed files with 52 additions and 0 deletions

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@ -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;
}

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@ -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()
}

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@ -19,6 +19,7 @@ mod Object;
mod Proxy;
mod Set;
mod SetIterator;
mod Symbol;
mod TypedArray;
mod WeakMap;
mod WeakSet;