39 lines
876 B
Rust
39 lines
876 B
Rust
use cfg_if::*;
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use wasm_bindgen::prelude::*;
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//use wasm_bindgen_futures::*;
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cfg_if! {
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if #[cfg(feature = "wee_alloc")] {
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// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
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// allocator.
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extern crate wee_alloc;
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#[global_allocator]
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static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
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}
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}
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#[wasm_bindgen]
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extern "C" {
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#[wasm_bindgen(js_namespace = console, js_name = log)]
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pub fn console_log(s: &str);
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#[wasm_bindgen]
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pub fn alert(s: &str);
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}
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pub fn set_panic_hook() {
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#[cfg(feature = "console_error_panic_hook")]
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console_error_panic_hook::set_once();
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}
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pub fn f64_try_to_unsigned<T>(f: f64) -> Result<T, ()>
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where
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T: core::convert::TryFrom<u64>,
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{
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let rf = f.floor();
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if rf < 0.0 {
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return Err(());
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}
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T::try_from(rf as u64).map_err(drop)
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}
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