Add term and error

This commit is contained in:
Rico Riedel 2022-07-29 14:50:04 +02:00
parent a92cf27664
commit bac17f9bdb
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GPG Key ID: 75AC868575DE7B18
5 changed files with 506 additions and 3 deletions

422
Cargo.lock generated
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@ -2,6 +2,428 @@
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@ -4,4 +4,10 @@ version = "2.0.0"
edition = "2021"
license = "MIT"
repository = "https://github.com/ricoriedel/wipe"
authors = ["Rico Riedel"]
authors = ["Rico Riedel"]
[dependencies]
crossterm = "0.24"
[dev-dependencies]
mockall = "0.11"

29
src/error.rs Normal file
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@ -0,0 +1,29 @@
use std::fmt::{Debug, Formatter};
pub struct Error(String);
impl Debug for Error {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
f.write_str(&self.0)
}
}
impl From<std::io::Error> for Error {
fn from(err: std::io::Error) -> Self {
Error(err.to_string())
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn from_std_io_error() {
let io_err = std::io::Error::new(std::io::ErrorKind::Other, "123");
let msg = io_err.to_string();
let err: Error = io_err.into();
assert_eq!(msg, format!("{:?}", err));
}
}

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@ -1,3 +1,8 @@
fn main() {
println!("Hello, world!");
mod error;
mod term;
use error::Error;
fn main() -> Result<(), Error> {
Ok(())
}

41
src/term.rs Normal file
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@ -0,0 +1,41 @@
use crate::Error;
use crossterm::{Command, QueueableCommand};
use std::io::Write;
#[cfg_attr(test, mockall::automock)]
pub trait Terminal {
fn queue<T: 'static + Command>(&mut self, cmd: T) -> Result<(), Error>;
fn flush(&mut self) -> Result<(), Error>;
fn size(&self) -> Result<(u16, u16), Error>;
fn position(&self) -> Result<(u16, u16), Error>;
}
pub struct TerminalImpl<T> {
out: T,
}
impl<T> TerminalImpl<T> {
pub fn new(out: T) -> Self {
Self { out }
}
}
impl<T: Write> Terminal for TerminalImpl<T> {
fn queue<TCmd: Command>(&mut self, cmd: TCmd) -> Result<(), Error> {
self.out.queue(cmd)?;
Ok(())
}
fn flush(&mut self) -> Result<(), Error> {
self.out.flush()?;
Ok(())
}
fn size(&self) -> Result<(u16, u16), Error> {
Ok(crossterm::terminal::size()?)
}
fn position(&self) -> Result<(u16, u16), Error> {
Ok(crossterm::cursor::position()?)
}
}