diff options
Diffstat (limited to 'src/error/mod.rs')
| -rw-r--r-- | src/error/mod.rs | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/src/error/mod.rs b/src/error/mod.rs index 964d83e..6eb6c15 100644 --- a/src/error/mod.rs +++ b/src/error/mod.rs @@ -23,6 +23,7 @@ use std::error::Error as StdError; use std::fmt::{Display, Formatter}; +use std::str::Utf8Error; /// Mapping of [`std::result::Result`]. pub type Result<T> = std::result::Result<T, Error>; @@ -37,10 +38,14 @@ pub enum Error { EndOfDStream { len: usize, ok_len: usize }, + FixedStringTooShort { len: usize, s: String }, + InvalidBoolean { value: u8 }, InvalidCodePoint { value: u32 }, + InvalidUtf8 { source: Utf8Error }, + NullInteger, } @@ -57,13 +62,21 @@ impl Display for Error { write!(f, "({ok_len}) byte(s) were requested but only ({len}) byte(s) were left") }, + FixedStringTooShort { len, ref s } => { + write!(f, "fixed string with `N = {len}` cannot hold {s:?}") + }, + InvalidBoolean { value } => { write!(f, "expected boolean but got {value:#02X}") }, InvalidCodePoint { value } => { write!(f, "code point U+{value:04X} is not valid") - } + }, + + InvalidUtf8 { ref source } =>{ + write!(f, "unable to parse utf8: \"{source}\"") + }, NullInteger => { write!(f, "expected non-zero integer but got (0)") @@ -72,4 +85,14 @@ impl Display for Error { } } -impl StdError for Error { } +impl StdError for Error { + fn source(&self) -> Option<&(dyn StdError + 'static)> { + use Error::*; + + match *self { + InvalidUtf8 { ref source } => Some(source), + + _ => None, + } + } +} |