try_[method]: Fallible methods with Specific Errors
Prefix for fallible methods that return a Result.
#![allow(unused)]
fn main() {
// Copyright 2025 Google LLC
// SPDX-License-Identifier: Apache-2.0
impl TryFrom<i32> for u32 {
type Error = TryFromIntError;
fn try_from(value: i32) -> Result<i64, TryFromIntError>;
}
impl<T> Receiver<T> {
try_recv(&self) -> Result<T, TryRecvError>;
}
}
- Prefix for methods that can fail, returning a `Result`.
-
TryFromis aFrom-like trait for types whose single-value constructors might fail in some way. -
Ask: Why aren’t
Vec::getand other similar methods calledtry_get?Methods are named
getif they return a reference to an existing value and return anOptioninstead ofResultbecause there is only one failure mode. For example, only “index out of bounds” forVec::get, and “key does not exist” forHashMap::get.