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use std::error::Error;
use std::fmt::{self, Display, Formatter};
use std::io;
use std::path::PathBuf;
use std::result;
use image::ImageError;
use crate::platform::DecoderError;
pub type Result<T = ()> = result::Result<T, TetraError>;
#[derive(Debug)]
pub enum TetraError {
PlatformError(String),
FailedToLoadAsset {
reason: io::Error,
path: PathBuf,
},
InvalidColor,
InvalidTexture(ImageError),
InvalidShader(String),
InvalidFont,
InvalidSound(DecoderError),
NotEnoughData {
expected: usize,
actual: usize,
},
NoAudioDevice,
FailedToChangeDisplayMode(String),
#[doc(hidden)]
__Nonexhaustive,
}
impl Display for TetraError {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
match self {
TetraError::PlatformError(reason) => {
write!(f, "An error was thrown by the platform: {}", reason)
}
TetraError::FailedToLoadAsset { reason, path } => write!(
f,
"Failed to load asset from {}: {}",
path.to_string_lossy(),
reason
),
TetraError::InvalidColor => write!(f, "Invalid color"),
TetraError::InvalidTexture(reason) => write!(f, "Invalid texture: {}", reason),
TetraError::InvalidShader(reason) => write!(f, "Invalid shader: {}", reason),
TetraError::InvalidFont => write!(f, "Invalid font"),
TetraError::InvalidSound(reason) => write!(f, "Invalid sound: {}", reason),
TetraError::NotEnoughData { expected, actual } => write!(
f,
"Not enough data was provided to fill a buffer - expected {}, found {}.",
expected, actual
),
TetraError::FailedToChangeDisplayMode(reason) => {
write!(f, "Failed to change display mode: {}", reason)
}
TetraError::NoAudioDevice => write!(f, "No audio device was available for playback."),
TetraError::__Nonexhaustive => unreachable!(),
}
}
}
impl Error for TetraError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
match self {
TetraError::PlatformError(_) => None,
TetraError::FailedToLoadAsset { reason, .. } => Some(reason),
TetraError::InvalidColor => None,
TetraError::InvalidTexture(reason) => Some(reason),
TetraError::InvalidShader(_) => None,
TetraError::InvalidFont => None,
TetraError::InvalidSound(reason) => Some(reason),
TetraError::NotEnoughData { .. } => None,
TetraError::NoAudioDevice => None,
TetraError::FailedToChangeDisplayMode(_) => None,
TetraError::__Nonexhaustive => unreachable!(),
}
}
}