Struct serde_lexpr::error::Error
source · pub struct Error(_);
Expand description
This type represents all possible errors that can occur when serializing or deserializing S-expression data.
Implementations§
source§impl Error
impl Error
sourcepub fn classify(&self) -> Category
pub fn classify(&self) -> Category
Categorizes the cause of this error.
Category::Io
- failure to read or write bytes on an IO streamCategory::Syntax
- input that is not a syntactically valid S-expressionCategory::Data
- input data that is semantically incorrectCategory::Eof
- unexpected end of the input data
Trait Implementations§
source§impl Error for Error
impl Error for Error
source§fn custom<T: Display>(msg: T) -> Error
fn custom<T: Display>(msg: T) -> Error
Raised when there is general error when deserializing a type. Read more
source§fn invalid_type(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self
fn invalid_type(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self
Raised when a
Deserialize
receives a type different from what it was
expecting. Read moresource§fn invalid_value(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self
fn invalid_value(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self
Raised when a
Deserialize
receives a value of the right type but that
is wrong for some other reason. Read moresource§fn invalid_length(len: usize, exp: &dyn Expected) -> Self
fn invalid_length(len: usize, exp: &dyn Expected) -> Self
Raised when deserializing a sequence or map and the input data contains
too many or too few elements. Read more
source§fn unknown_variant(variant: &str, expected: &'static [&'static str]) -> Self
fn unknown_variant(variant: &str, expected: &'static [&'static str]) -> Self
Raised when a
Deserialize
enum type received a variant with an
unrecognized name.source§fn unknown_field(field: &str, expected: &'static [&'static str]) -> Self
fn unknown_field(field: &str, expected: &'static [&'static str]) -> Self
Raised when a
Deserialize
struct type received a field with an
unrecognized name.source§fn missing_field(field: &'static str) -> Self
fn missing_field(field: &'static str) -> Self
Raised when a
Deserialize
struct type expected to receive a required
field with a particular name but that field was not present in the
input.source§fn duplicate_field(field: &'static str) -> Self
fn duplicate_field(field: &'static str) -> Self
Raised when a
Deserialize
struct type received more than one of the
same field.source§impl Error for Error
impl Error for Error
source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
1.0.0 · source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
source§impl From<Error> for Error
impl From<Error> for Error
source§fn from(l: Error) -> Self
fn from(l: Error) -> Self
Convert a serde_lexpr::Error
into an io::Error
.
S-expression syntax errors are turned into InvalidData
IO errors. EOF
errors are turned into UnexpectedEof
IO errors.
use std::io;
enum MyError {
Io(io::Error),
Lexpr(serde_lexpr::Error),
}
impl From<serde_lexpr::Error> for MyError {
fn from(err: serde_lexpr::Error) -> MyError {
use serde_lexpr::error::Category;
match err.classify() {
Category::Io => {
MyError::Io(err.into())
}
Category::Syntax | Category::Eof | Category::Data => {
MyError::Lexpr(err)
}
}
}
}