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main
components/script_bindings/num.rs
57 строк
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Rahul Menon
script: Implement QuotaExceededError WebIDL interface (#38507)
14 авг 2025, 20:58
Не верифицирован
14 авг 2025, 20:58
b5932e5
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/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ //! The `Finite<T>` struct. use std::default::Default; use std::ops::Deref; use malloc_size_of::{MallocSizeOf, MallocSizeOfOps}; use num_traits::Float; /// Encapsulates the IDL restricted float type. #[derive(Clone, Copy, Debug, Eq, JSTraceable, PartialEq)] pub struct Finite<T: Float>(T); impl<T: Float> Finite<T> { /// Create a new `Finite<T: Float>` safely. pub fn new(value: T) -> Option<Finite<T>> { if value.is_finite() { Some(Finite(value)) } else { None } } /// Create a new `Finite<T: Float>`. #[inline] pub fn wrap(value: T) -> Finite<T> { assert!( value.is_finite(), "Finite<T> doesn't encapsulate unrestricted value." ); Finite(value) } } impl<T: Float> Deref for Finite<T> { type Target = T; fn deref(&self) -> &T { let Finite(value) = self; value } } impl<T: Float + MallocSizeOf> MallocSizeOf for Finite<T> { fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize { (**self).size_of(ops) } } impl<T: Float + Default> Default for Finite<T> { fn default() -> Finite<T> { Finite::wrap(T::default()) } }