Enum merde::MerdeError

#[non_exhaustive]
pub enum MerdeError {
    MismatchedType {
        expected: ValueType,
        found: ValueType,
    },
    MissingProperty(CowStr<'static>),
    IndexOutOfBounds {
        index: usize,
        len: usize,
    },
    UnknownProperty(String),
    OutOfRange,
    MissingValue,
    InvalidKey,
    InvalidDateTimeValue,
    Io(Error),
}

A grab-bag of errors that can occur when deserializing. This isn’t super clean, not my proudest moment.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MismatchedType

We expected a certain type but got a different one.

Note that the default implementations of crate::ValueDeserialize have tolerances: if we expect a u32 but get a floating-point number, we’ll round it.

Fields

expected: ValueType

The expected type.

found: ValueType

The type we got.

MissingProperty(CowStr<'static>)

We expected an object to have a certain property, but it was missing.

IndexOutOfBounds

We tried to access an array index that was out of bounds.

Fields

index: usize

The index we tried to access.

len: usize

The length of the array.

UnknownProperty(String)

We encountered a property that we didn’t expect.

OutOfRange

For example, we had a u8 field but the JSON value was bigger than u8::MAX.

MissingValue

A field was missing (but we don’t know its name)

InvalidKey

While calling out to FromStr::from_str to build a HashMap, we got an error.

InvalidDateTimeValue

While parsing a datetime, we got an error

Io(Error)

An I/O error occurred.

Trait Implementations

impl Debug for MerdeError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for MerdeError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for MerdeError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for MerdeError

fn from(e: Error) -> MerdeError

Converts to this type from the input type.