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https://github.com/fluencelabs/wasm-bindgen
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Merge pull request #378 from jhenninger/math-bindings
Bindings for Math.pow, round, sign, sin, sinh, sqrt, tan, tanh and trunc
This commit is contained in:
Jonathan Sundqvist
GitHub
commit
17fde01243
58
src/js.rs
58
src/js.rs
@ -608,6 +608,64 @@ extern "C" {
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#[wasm_bindgen(static_method_of = Math)]
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pub fn log2(x: f64) -> Number;
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/// The Math.pow() function returns the base to the exponent power, that is, base^exponent.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/pow
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#[wasm_bindgen(static_method_of = Math)]
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pub fn pow(base: f64, exponent: f64) -> Number;
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/// The Math.round() function returns the value of a number rounded to the nearest integer.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round
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#[wasm_bindgen(static_method_of = Math)]
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pub fn round(x: f64) -> Number;
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/// The Math.sign() function returns the sign of a number, indicating whether the number is
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/// positive, negative or zero.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign
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#[wasm_bindgen(static_method_of = Math)]
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pub fn sign(x: f64) -> Number;
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/// The Math.sin() function returns the sine of a number.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sin
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#[wasm_bindgen(static_method_of = Math)]
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pub fn sin(x: f64) -> Number;
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/// The Math.sinh() function returns the hyperbolic sine of a number, that can be expressed
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/// using the constant e: Math.sinh(x) = (e^x - e^-x)/2
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sinh
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#[wasm_bindgen(static_method_of = Math)]
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pub fn sinh(x: f64) -> Number;
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/// The Math.sqrt() function returns the square root of a number, that is
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/// ∀x ≥ 0, Math.sqrt(x) = √x = the unique y ≥ 0 such that y^2 = x
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sqrt
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#[wasm_bindgen(static_method_of = Math)]
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pub fn sqrt(x: f64) -> Number;
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/// The Math.tan() function returns the tangent of a number.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/tan
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#[wasm_bindgen(static_method_of = Math)]
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pub fn tan(x: f64) -> Number;
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/// The Math.tanh() function returns the hyperbolic tangent of a number, that is
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/// tanh x = sinh x / cosh x = (e^x - e^-x)/(e^x + e^-x) = (e^2x - 1)/(e^2x + 1)
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/tanh
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#[wasm_bindgen(static_method_of = Math)]
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pub fn tanh(x: f64) -> Number;
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/// The Math.trunc() function returns the integer part of a number by removing any fractional
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/// digits.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
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#[wasm_bindgen(static_method_of = Math)]
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pub fn trunc(x: f64) -> Number;
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}
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// Number.
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@ -682,4 +682,263 @@ fn log2() {
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}
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"#)
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.test()
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}
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#[test]
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fn pow() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn pow(base: f64, exponent: f64) -> js::Number {
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js::Math::pow(base, exponent)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.pow(7, 2), 49);
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assert.equal(wasm.pow(3.8, 0.5), Math.pow(3.8, 0.5));
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assert(Number.isNaN(wasm.pow(-2, 0.5)));
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}
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"#)
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.test()
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}
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#[test]
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fn round() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn round(x: f64) -> js::Number {
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js::Math::round(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.round(20.49), 20);
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assert.equal(wasm.round(20.5), 21);
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assert.equal(wasm.round(42), 42);
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assert.equal(wasm.round(-20.5), -20);
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assert.equal(wasm.round(-20.51), -21);
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}
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"#)
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.test()
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}
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#[test]
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fn sign() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn sign(x: f64) -> js::Number {
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js::Math::sign(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.sign(3), 1);
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assert.equal(wasm.sign(-3), -1);
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assert.equal(wasm.sign(2.3), 1);
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assert.equal(wasm.sign(0), 0);
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assert(Number.isNaN(wasm.sign(NaN)));
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}
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"#)
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.test()
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}
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#[test]
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fn sin() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn sin(x: f64) -> js::Number {
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js::Math::sin(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.sin(0), 0);
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assert.equal(wasm.sin(1), Math.sin(1));
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assert.equal(wasm.sin(Math.PI / 2), 1);
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}
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"#)
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.test()
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}
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#[test]
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fn sinh() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn sinh(x: f64) -> js::Number {
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js::Math::sinh(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.sinh(0), 0);
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assert.equal(wasm.sinh(1), Math.sinh(1));
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assert.equal(wasm.sinh(2.3), Math.sinh(2.3));
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}
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"#)
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.test()
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}
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#[test]
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fn sqrt() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn sqrt(x: f64) -> js::Number {
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js::Math::sqrt(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.sqrt(9), 3);
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assert.equal(wasm.sqrt(2), Math.sqrt(2));
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assert.equal(wasm.sqrt(42.42), Math.sqrt(42.42));
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assert.equal(wasm.sqrt(1), 1);
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assert(Number.isNaN(wasm.sqrt(-1)));
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}
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"#)
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.test()
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}
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#[test]
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fn tan() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn tan(x: f64) -> js::Number {
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js::Math::tan(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.tan(0), 0);
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assert.equal(wasm.tan(1), Math.tan(1));
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assert.equal(wasm.tan(0.5), Math.tan(0.5));
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}
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"#)
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.test()
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}
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#[test]
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fn tanh() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn tanh(x: f64) -> js::Number {
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js::Math::tanh(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.tanh(0), 0);
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assert.equal(wasm.tanh(1), Math.tanh(1));
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assert.equal(wasm.tanh(0.5), Math.tanh(0.5));
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}
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"#)
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.test()
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}
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#[test]
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fn trunc() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn trunc(x: f64) -> js::Number {
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js::Math::trunc(x)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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assert.equal(wasm.trunc(13.37), 13);
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assert.equal(wasm.trunc(42.84), 42);
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assert.equal(wasm.trunc(0.123), 0);
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assert.equal(wasm.trunc(-0.123), 0);
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}
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"#)
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.test()
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}
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