Enum toml::ser::Error

pub enum Error {
    UnsupportedType,
    KeyNotString,
    ArrayMixedType,
    ValueAfterTable,
    DateInvalid,
    NumberInvalid,
    UnsupportedNone,
    Custom(String),
    // some variants omitted
}

Errors that can occur when serializing a type.

Variants

UnsupportedType

Indicates that a Rust type was requested to be serialized but it was not supported.

Currently the TOML format does not support serializing types such as enums, tuples and tuple structs.

KeyNotString

The key of all TOML maps must be strings, but serialization was attempted where the key of a map was not a string.

ArrayMixedType

Arrays in TOML must have a homogenous type, but a heterogeneous array was emitted.

ValueAfterTable

All values in a TOML table must be emitted before further tables are emitted. If a value is emitted after a table then this error is generated.

DateInvalid

A serialized date was invalid.

NumberInvalid

A serialized number was invalid.

UnsupportedNone

None was attempted to be serialized, but it’s not supported.

Custom(String)

A custom error which could be generated when serializing a particular type.

Tuple Fields of Custom

0: String

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl Error for Error

fn custom<T: Display>(msg: T) -> Error

Used when a Serialize implementation encounters any error while serializing a type.

impl PartialEq<Error> for Error

fn eq(&self, other: &Error) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Error) -> bool

This method tests for !=.

impl Eq for Error

impl StructuralEq for Error

impl StructuralPartialEq for Error