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js-sys: Add extends to Math

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Part of #670
This commit is contained in:
Nick Fitzgerald 2018-09-06 13:39:30 -07:00
parent 5df2347a7a
commit bfff8661c1
2 changed files with 14 additions and 0 deletions
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1
crates/js-sys/src/lib.rs
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@ -1203,6 +1203,7 @@ extern {
#[wasm_bindgen] #[wasm_bindgen]
extern "C" { extern "C" {
#[derive(Clone, Debug)] #[derive(Clone, Debug)]
#[wasm_bindgen(extends = Object)]
pub type Math; pub type Math;
/// The Math.abs() function returns the absolute value of a number, that is /// The Math.abs() function returns the absolute value of a number, that is

13
crates/js-sys/tests/wasm/Math.rs
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@ -1,9 +1,22 @@
use std::f64::consts::PI; use std::f64::consts::PI;
use std::f64::{NEG_INFINITY, NAN}; use std::f64::{NEG_INFINITY, NAN};
use wasm_bindgen::{JsCast, prelude::*};
use wasm_bindgen_test::*; use wasm_bindgen_test::*;
use js_sys::*; use js_sys::*;
#[wasm_bindgen_test]
fn math_extends() {
#[wasm_bindgen]
extern {
#[wasm_bindgen(js_name = Math)]
static math: Math;
}
assert!(math.is_instance_of::<Object>());
let _: &Object = math.as_ref();
}
macro_rules! assert_eq { macro_rules! assert_eq {
($a:expr, $b:expr) => ({ ($a:expr, $b:expr) => ({
let (a, b) = (&$a, &$b); let (a, b) = (&$a, &$b);