Add clz32 to Math

This commit is contained in:
Jonathan Sundqvist 2018-06-25 22:47:21 +02:00
parent 9b70f14a1c
commit e05b1ae6ba
2 changed files with 34 additions and 0 deletions

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@ -308,6 +308,13 @@ extern {
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/ceil
#[wasm_bindgen(static_method_of = Math)]
pub fn ceil(x: f32) -> Number;
/// The Math.clz32() function returns the number of leading zero bits in
/// the 32-bit binary representation of a number.
///
/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
#[wasm_bindgen(static_method_of = Math)]
pub fn clz32(x: i32) -> Number;
}
// Number.

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@ -265,3 +265,30 @@ fn ceil() {
"#)
.test()
}
#[test]
fn clz32() {
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 clz32(x: i32) -> js::Number {
js::Math::clz32(x)
}
"#)
.file("test.ts", r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
assert.equal(wasm.clz32(1), 31);
assert.equal(wasm.clz32(1000), 22);
}
"#)
.test()
}