40a56bf165
Most use cases are internal so at least for the runtime consumers there's no API change, but preset parsing and reflection items are public API so might as well put this as part of 0.4.0
45 lines
1.6 KiB
Rust
45 lines
1.6 KiB
Rust
use librashader_common::map::ShortString;
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use std::convert::Infallible;
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use std::path::PathBuf;
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use thiserror::Error;
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/// Error type for source preprocessing.
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#[derive(Error, Debug)]
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pub enum PreprocessError {
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/// The version header was not found in the source file.
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#[error("the version header was missing")]
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MissingVersionHeader,
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/// An IO error occurred when reading the source file.
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#[error("the file was not found during resolution")]
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IOError(PathBuf, std::io::Error),
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/// A known encoding was not found for the file.
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#[error(
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"a known encoding was not found for the file. supported encodings are UTF-8 and Latin-1"
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)]
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EncodingError(PathBuf),
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/// Unexpected EOF when reading the source file.
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#[error("unexpected end of file")]
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UnexpectedEof,
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/// Unexpected end of line when reading the source file.
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#[error("unexpected end of line")]
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UnexpectedEol(usize),
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/// An error occurred when parsing a pragma statement.
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#[error("error parsing pragma")]
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PragmaParseError(String),
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/// The given pragma was declared multiple times with differing values.
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#[error("duplicate pragma found")]
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DuplicatePragmaError(ShortString),
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/// The image format requested by the shader was unknown or not supported.
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#[error("shader format is unknown or not found")]
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UnknownImageFormat,
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/// The stage declared by the shader source was not `vertex` or `fragment`.
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#[error("stage must be either vertex or fragment")]
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InvalidStage,
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}
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impl From<Infallible> for PreprocessError {
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fn from(_: Infallible) -> Self {
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unreachable!()
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}
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}
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