40 lines
612 B
Rust
40 lines
612 B
Rust
use anyhow::{ensure, Result};
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use std::ops::{Deref, Not};
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struct Bool(bool);
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struct DerefBool(bool);
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struct NotBool(bool);
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impl Deref for DerefBool {
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type Target = bool;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl Not for NotBool {
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type Output = bool;
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fn not(self) -> Self::Output {
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!self.0
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}
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}
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fn main() -> Result<()> {
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ensure!("...");
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let mut s = Bool(true);
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match &mut s {
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Bool(cond) => ensure!(cond),
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}
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let db = DerefBool(true);
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ensure!(db);
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ensure!(&db);
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let nb = NotBool(true);
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ensure!(nb);
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Ok(())
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}
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