swaitsandClaude Opus 4.6
3102fc747a
Implement full SSD1306 OLED display support: - Splash screen on boot (1.5s) with project name, version, board - Dashboard showing radio state, config, counters, RSSI/SNR - RSSI history sparkline (64-sample ring buffer, 2px-wide bars) - DisplayOn/DisplayOff host commands routed via dedicated channel - Pure render functions against generic DrawTarget (no hardware coupling) - Display on/off control bypasses radio task entirely Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
80 lines
2.6 KiB
Rust
80 lines
2.6 KiB
Rust
use std::{self, error, fmt, io, str};
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use semver::{self, Identifier};
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/// The error type for this crate.
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#[derive(Debug)]
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pub enum Error {
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/// An error ocurrend when executing the `rustc` command.
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CouldNotExecuteCommand(io::Error),
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/// The output of `rustc -vV` was not valid utf-8.
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Utf8Error(str::Utf8Error),
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/// The output of `rustc -vV` was not in the expected format.
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UnexpectedVersionFormat,
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/// An error ocurred in parsing a `VersionReq`.
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ReqParseError(semver::ReqParseError),
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/// An error ocurred in parsing the semver.
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SemVerError(semver::SemVerError),
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/// The pre-release tag is unknown.
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UnknownPreReleaseTag(Identifier),
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}
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use Error::*;
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impl fmt::Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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use std::error::Error;
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match *self {
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CouldNotExecuteCommand(ref e) => write!(f, "{}: {}", self.description(), e),
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Utf8Error(_) => write!(f, "{}", self.description()),
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UnexpectedVersionFormat => write!(f, "{}", self.description()),
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ReqParseError(ref e) => write!(f, "{}: {}", self.description(), e),
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SemVerError(ref e) => write!(f, "{}: {}", self.description(), e),
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UnknownPreReleaseTag(ref i) => write!(f, "{}: {}", self.description(), i),
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}
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}
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}
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impl error::Error for Error {
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fn cause(&self) -> Option<&error::Error> {
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match *self {
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CouldNotExecuteCommand(ref e) => Some(e),
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Utf8Error(ref e) => Some(e),
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UnexpectedVersionFormat => None,
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ReqParseError(ref e) => Some(e),
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SemVerError(ref e) => Some(e),
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UnknownPreReleaseTag(_) => None,
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}
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}
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fn description(&self) -> &str {
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match *self {
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CouldNotExecuteCommand(_) => "could not execute command",
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Utf8Error(_) => "invalid UTF-8 output from `rustc -vV`",
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UnexpectedVersionFormat => "unexpected `rustc -vV` format",
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ReqParseError(_) => "error parsing version requirement",
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SemVerError(_) => "error parsing version",
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UnknownPreReleaseTag(_) => "unknown pre-release tag",
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}
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}
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}
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macro_rules! impl_from {
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($($err_ty:ty => $variant:ident),* $(,)*) => {
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$(
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impl From<$err_ty> for Error {
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fn from(e: $err_ty) -> Error {
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Error::$variant(e)
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}
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}
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)*
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}
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}
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impl_from! {
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str::Utf8Error => Utf8Error,
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semver::SemVerError => SemVerError,
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semver::ReqParseError => ReqParseError,
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}
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/// The result type for this crate.
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pub type Result<T> = std::result::Result<T, Error>;
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