2 #![allow(deprecated)] // for deprecated `try!()` macro
3 use std::num::{ParseFloatError, ParseIntError};
6 assert_eq!(simple(), Ok(1));
7 assert_eq!(nested(), Ok(2));
8 assert_eq!(merge_ok(), Ok(3.0));
9 assert_eq!(merge_int_err(), Err(Error::Int));
10 assert_eq!(merge_float_err(), Err(Error::Float));
13 fn simple() -> Result<i32, ParseIntError> {
17 fn nested() -> Result<i32, ParseIntError> {
18 Ok(try!(try!("2".parse::<i32>()).to_string().parse::<i32>()))
21 fn merge_ok() -> Result<f32, Error> {
22 Ok(try!("1".parse::<i32>()) as f32 + try!("2.0".parse::<f32>()))
25 fn merge_int_err() -> Result<f32, Error> {
26 Ok(try!("a".parse::<i32>()) as f32 + try!("2.0".parse::<f32>()))
29 fn merge_float_err() -> Result<f32, Error> {
30 Ok(try!("1".parse::<i32>()) as f32 + try!("b".parse::<f32>()))
33 #[derive(Debug, PartialEq)]
39 impl From<ParseIntError> for Error {
40 fn from(_: ParseIntError) -> Error {
45 impl From<ParseFloatError> for Error {
46 fn from(_: ParseFloatError) -> Error {