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Diffstat (limited to 'src/error/mod.rs')
-rw-r--r-- | src/error/mod.rs | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/src/error/mod.rs b/src/error/mod.rs deleted file mode 100644 index 30e4c1e..0000000 --- a/src/error/mod.rs +++ /dev/null @@ -1,112 +0,0 @@ -// Copyright 2024 Gabriel Bjørnager Jensen. -// -// This file is part of bzipper. -// -// bzipper is free software: you can redistribute -// it and/or modify it under the terms of the GNU -// Lesser General Public License as published by -// the Free Software Foundation, either version 3 -// of the License, or (at your option) any later -// version. -// -// bzipper is distributed in the hope that it will -// be useful, but WITHOUT ANY WARRANTY; without -// even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Less- -// er General Public License along with bzipper. If -// not, see <https://www.gnu.org/licenses/>. - -use core::error::Error as StdError; -use core::fmt::{Display, Formatter}; -use core::str::Utf8Error; - -/// Mapping of [`core::result::Result`]. -pub type Result<T> = core::result::Result<T, Error>; - -/// Denotes an error. -/// -/// These variants are used when deserialisation fails. -/// Serialisations are assumed infallible. -#[derive(Debug)] -pub enum Error { - /// An array could not hold the requested amount of elements. - ArrayTooShort { req: usize, len: usize }, - - /// A string encountered an invalid UTF-8 sequence. - BadString { source: Utf8Error }, - - /// Bytes were requested on an empty stream. - EndOfStream { req: usize, rem: usize }, - - /// A boolean encountered a value outside (0) and (1). - InvalidBoolean { value: u8 }, - - /// An invalid code point was encountered. - /// - /// This includes surrogate points in the inclusive range `U+D800` to `U+DFFF`, as well as values larger than `U+10FFFF`. - InvalidCodePoint { value: u32 }, - - /// An `isize` value couldn't fit into (16) bits. - IsizeOutOfRange { value: isize }, - - /// A non-zero integer encountered the value (0). - NullInteger, - - /// A `usize` value couldn't fit into (16) bits. - UsizeOutOfRange { value: usize }, -} - -impl Display for Error { - fn fmt(&self, f: &mut Formatter) -> core::fmt::Result { - use Error::*; - - match *self { - ArrayTooShort { req, len } => { - write!(f, "array of ({len}) element(s) cannot hold ({req})") - }, - - BadString { ref source } =>{ - write!(f, "unable to parse utf8: \"{source}\"") - }, - - EndOfStream { req, rem } => { - write!(f, "({req}) byte(s) were requested but only ({rem}) byte(s) were left") - }, - - InvalidBoolean { value } => { - write!(f, "expected boolean but got {value:#02X}") - }, - - InvalidCodePoint { value } => { - write!(f, "code point U+{value:04X} is not valid") - }, - - IsizeOutOfRange { value } => { - write!(f, "signed size value ({value}) cannot be serialised: must be in the range ({}) to ({})", i16::MIN, i16::MAX) - }, - - NullInteger => { - write!(f, "expected non-zero integer but got (0)") - }, - - UsizeOutOfRange { value } => { - write!(f, "unsigned size value ({value}) cannot be serialised: must be at most ({})", u16::MAX) - }, - } - } -} - -impl StdError for Error { - fn source(&self) -> Option<&(dyn StdError + 'static)> { - use Error::*; - - match *self { - BadString { ref source } => Some(source), - - _ => None, - } - } -} |