43 lines
1.1 KiB
Rust
43 lines
1.1 KiB
Rust
//! Definitions for the native SOL token and its fractional lamports.
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#![allow(clippy::arithmetic_side_effects)]
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/// There are 10^9 lamports in one SOL
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pub const LAMPORTS_PER_SOL: u64 = 1_000_000_000;
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/// Approximately convert fractional native tokens (lamports) into native tokens (SOL)
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pub fn lamports_to_sol(lamports: u64) -> f64 {
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lamports as f64 / LAMPORTS_PER_SOL as f64
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}
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/// Approximately convert native tokens (SOL) into fractional native tokens (lamports)
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pub fn sol_to_lamports(sol: f64) -> u64 {
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(sol * LAMPORTS_PER_SOL as f64) as u64
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}
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use std::fmt::{Debug, Display, Formatter, Result};
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pub struct Sol(pub u64);
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impl Sol {
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fn write_in_sol(&self, f: &mut Formatter) -> Result {
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write!(
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f,
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"◎{}.{:09}",
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self.0 / LAMPORTS_PER_SOL,
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self.0 % LAMPORTS_PER_SOL
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)
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}
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}
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impl Display for Sol {
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fn fmt(&self, f: &mut Formatter) -> Result {
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self.write_in_sol(f)
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}
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}
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impl Debug for Sol {
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fn fmt(&self, f: &mut Formatter) -> Result {
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self.write_in_sol(f)
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}
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}
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