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feat: Introduce
Unit for constant unit values
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| Original file line number | Diff line number | Diff line change |
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| // This file is part of Noir. | ||
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| // Copyright (c) Haderech Pte. Ltd. | ||
| // SPDX-License-Identifier: GPL-3.0-or-later | ||
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| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
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| use crate::{Balance, Moment}; | ||
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| /// A number of units. | ||
| pub struct Unit(pub u32); | ||
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| impl Unit { | ||
| /// A unit of base currency. | ||
| pub const fn dollars(&self) -> Balance { | ||
| self.0 as Balance * 1_000_000_000_000_000_000 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn dollar(&self) -> Balance { | ||
| self.dollars() | ||
| } | ||
| /// One hundredth of a dollar. | ||
| pub const fn cents(&self) -> Balance { | ||
| self.dollars() / 100 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn cent(&self) -> Balance { | ||
| self.cents() | ||
| } | ||
| /// One thousandth of a cent. | ||
| pub const fn millicents(&self) -> Balance { | ||
| self.cents() / 1_000 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn millicent(&self) -> Balance { | ||
| self.millicents() | ||
| } | ||
| /// Kibibytes. | ||
| pub const fn kibibytes(&self) -> u32 { | ||
| self.0 * 1024 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn kibibyte(&self) -> u32 { | ||
| self.kibibytes() | ||
| } | ||
| /// Mebibytes. | ||
| pub const fn mebibytes(&self) -> u32 { | ||
| self.kibibytes() * 1024 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn mebibyte(&self) -> u32 { | ||
| self.mebibytes() | ||
| } | ||
| /// A day in milliseconds. | ||
| pub const fn days(&self) -> Moment { | ||
| self.hours() * 24 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn day(&self) -> Moment { | ||
| self.days() | ||
| } | ||
| /// An hour in milliseconds. | ||
| pub const fn hours(&self) -> Moment { | ||
| self.minutes() * 60 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn hour(&self) -> Moment { | ||
| self.hours() | ||
| } | ||
| /// A minute in milliseconds. | ||
| pub const fn minutes(&self) -> Moment { | ||
| self.seconds() * 60 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn minute(&self) -> Moment { | ||
| self.minutes() | ||
| } | ||
| /// A second in milliseconds. | ||
| pub const fn seconds(&self) -> Moment { | ||
| self.milliseconds() * 1000 | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn second(&self) -> Moment { | ||
| self.seconds() | ||
| } | ||
| /// A millisecond. | ||
| pub const fn milliseconds(&self) -> Moment { | ||
| self.0 as Moment | ||
| } | ||
| #[doc(hidden)] | ||
| pub const fn millisecond(&self) -> Moment { | ||
| self.milliseconds() | ||
| } | ||
| } | ||
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| #[cfg(test)] | ||
| mod tests { | ||
| #![allow(non_upper_case_globals)] | ||
| use super::*; | ||
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| pub const DOLLARS: Balance = 1_000_000_000_000_000_000; | ||
| pub const CENTS: Balance = DOLLARS / 100; | ||
| pub const MILLICENTS: Balance = CENTS / 1_000; | ||
| pub const KiB: u32 = 1024; | ||
| pub const MiB: u32 = 1024 * KiB; | ||
| pub const DAYS: Moment = 24 * HOURS; | ||
| pub const HOURS: Moment = 60 * MINUTES; | ||
| pub const MINUTES: Moment = 60 * SECONDS; | ||
| pub const SECONDS: Moment = 1000; | ||
| pub const MILLISECONDS: Moment = 1; | ||
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| #[test] | ||
| fn test_units() { | ||
| assert_eq!(Unit(42).dollars(), 42 * DOLLARS); | ||
| assert_eq!(Unit(42).cents(), 42 * CENTS); | ||
| assert_eq!(Unit(42).millicents(), 42 * MILLICENTS); | ||
| assert_eq!(Unit(42).kibibytes(), 42 * KiB); | ||
| assert_eq!(Unit(42).mebibytes(), 42 * MiB); | ||
| assert_eq!(Unit(42).days(), 42 * DAYS); | ||
| assert_eq!(Unit(42).hours(), 42 * HOURS); | ||
| assert_eq!(Unit(42).minutes(), 42 * MINUTES); | ||
| assert_eq!(Unit(42).seconds(), 42 * SECONDS); | ||
| assert_eq!(Unit(42).milliseconds(), 42 * MILLISECONDS); | ||
| } | ||
| } |
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