51 lines
1.3 KiB
Rust
51 lines
1.3 KiB
Rust
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use crate::archive;
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use std::error;
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use std::fmt;
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pub type Result<T> = std::result::Result<T, ArchiveError>;
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#[derive(Debug)]
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pub struct ErrCode(pub i32);
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impl fmt::Display for ErrCode {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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write!(fmt, "{}", self.0)
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}
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}
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#[derive(Debug)]
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pub enum ArchiveError {
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Consumed,
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HeaderPosition,
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Sys(ErrCode, String),
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}
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impl error::Error for ArchiveError {}
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impl fmt::Display for ArchiveError {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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match self {
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ArchiveError::Consumed => write!(fmt, "Builder already consumed"),
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ArchiveError::HeaderPosition => write!(fmt, "Header position expected to be 0"),
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ArchiveError::Sys(ref code, ref msg) => {
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write!(fmt, "{} (libarchive err_code={})", msg, code)
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}
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}
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}
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}
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impl<'a> From<&'a dyn archive::Handle> for ArchiveError {
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fn from(handle: &'a dyn archive::Handle) -> ArchiveError {
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ArchiveError::Sys(handle.err_code(), handle.err_msg().to_owned())
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}
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}
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impl<'a> From<&'a dyn archive::Handle> for Result<()> {
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fn from(handle: &'a dyn archive::Handle) -> Result<()> {
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match handle.err_code() {
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ErrCode(0) => Ok(()),
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_ => Err(ArchiveError::from(handle)),
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}
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}
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}
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