Enum serde_json_wasm::de::Error

#[non_exhaustive]pub enum Error {
    ControlCharacterInString,
    EofWhileParsingList,
    EofWhileParsingObject,
    EofWhileParsingString,
    EofWhileParsingValue,
    ExpectedColon,
    ExpectedHighSurrogate,
    ExpectedListCommaOrEnd,
    ExpectedLowSurrogate,
    ExpectedObjectCommaOrEnd,
    ExpectedSomeIdent,
    ExpectedSomeValue,
    InvalidEscape,
    InvalidNumber,
    InvalidType,
    InvalidUnicodeCodePoint,
    KeyMustBeAString,
    LoneSurrogateFound,
    TrailingCharacters,
    TrailingComma,
    Custom(String),
}

This type represents all possible errors that can occur when deserializing JSON data

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.

ControlCharacterInString

Control character (U+0000 to U+001F) found in string. Those must always be escaped.

EofWhileParsingList

EOF while parsing a list.

EofWhileParsingObject

EOF while parsing an object.

EofWhileParsingString

EOF while parsing a string.

EofWhileParsingValue

EOF while parsing a JSON value.

ExpectedColon

Expected this character to be a ':'.

ExpectedHighSurrogate

Expected a high surrogate (D800–DBFF) but found something else

ExpectedListCommaOrEnd

Expected this character to be either a ',' or a ']'.

ExpectedLowSurrogate

Expected a low surrogate (DC00–DFFF) but found something else

ExpectedObjectCommaOrEnd

Expected this character to be either a ',' or a '}'.

ExpectedSomeIdent

Expected to parse either a true, false, or a null.

ExpectedSomeValue

Expected this character to start a JSON value.

InvalidEscape

Invalid escape sequence

InvalidNumber

Invalid number.

InvalidType

Invalid type

InvalidUnicodeCodePoint

Invalid unicode code point.

KeyMustBeAString

Object key is not a string.

LoneSurrogateFound

Found a lone surrogate, which can exist in JSON but cannot be encoded to UTF-8

TrailingCharacters

JSON has non-whitespace trailing characters after the value.

TrailingComma

JSON has a comma after the last value in an array or map.

Custom(String)

Custom error message from serde

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

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

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

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

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

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl Error for Error

pub fn custom<T>(msg: T) -> Self where
    T: Display, 

Raised when there is general error when deserializing a type.

pub fn invalid_type(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self

Raised when a Deserialize receives a type different from what it was expecting.

pub 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.

pub 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.

pub fn unknown_variant(variant: &str, expected: &'static [&'static str]) -> Self

Raised when a Deserialize enum type received a variant with an unrecognized name.

pub fn unknown_field(field: &str, expected: &'static [&'static str]) -> Self

Raised when a Deserialize struct type received a field with an unrecognized name.

pub 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.

pub fn duplicate_field(field: &'static str) -> Self

Raised when a Deserialize struct type received more than one of the same field.

impl PartialEq<Error> for Error

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

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

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

This method tests for !=.

impl StructuralPartialEq for Error