mirror of
https://github.com/fluencelabs/wasm-bindgen
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02b7021053
This commit leverages two new attributes in the Rust compiler, `#[wasm_custom_section]` and `#[wasm_import_module]`. These two attributes allow removing a lot of hacks found in wasm-bindgen and also allows removing the requirement of `wasm-opt` to remove the unused data sections. This does require two new nightly features but we already required the `proc_macro` nightly feature and these will hopefully be stabilized before that feature!
27 lines
571 B
Rust
27 lines
571 B
Rust
#![feature(proc_macro, wasm_custom_section, wasm_import_module)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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#[wasm_bindgen]
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extern {
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#[wasm_bindgen(js_namespace = Math)]
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fn log2(a: f64) -> f64;
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#[wasm_bindgen(js_namespace = Math)]
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fn sin(a: f64) -> f64;
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#[wasm_bindgen(js_namespace = console)]
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fn log(a: &str);
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}
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macro_rules! println {
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($($t:tt)*) => (log(&format_args!($($t)*).to_string()))
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}
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#[wasm_bindgen]
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pub fn run() {
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println!("Math.log2(10.0) = {}", log2(10.0));
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println!("Math.sin(1.2) = {}", sin(1.2));
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}
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