Struct JsonErrorData 

pub struct JsonErrorData {
    pub msg: String,
    pub doc: Option<String>,
    pub pos: usize,
    pub lineno: usize,
    pub colno: usize,
}

Structured fields of a json.JSONDecodeError, mirroring CPython’s msg / doc / pos / lineno / colno exception attributes.

As with UnicodeErrorData, the payload exists so host bindings can construct a real json.JSONDecodeError instead of falling back to a plain ValueError; sandboxed code never sees these fields. lineno/colno are carried explicitly rather than recomputed from doc because doc may be absent (see JsonErrorData::MAX_DOC_LEN).

Fields

msg: String

The bare error message, without the : line N column M (char K) suffix the formatted exception message carries.

doc: Option<String>

The document being parsed, matching CPython’s exc.doc. None when the document exceeds JsonErrorData::MAX_DOC_LEN or is not valid UTF-8 (json.loads on bytes input).

pos: usize

Character index of the error in doc, matching CPython’s exc.pos.

lineno: usize

1-based line of the error, matching CPython’s exc.lineno.

colno: usize

1-based column of the error, matching CPython’s exc.colno.

Implementations

impl JsonErrorData

pub const MAX_DOC_LEN: usize

Document size cap, mirroring UnicodeErrorData::MAX_OBJECT_LEN: exception payloads are copied into the host once they escape the worker, so doc is dropped (not truncated — a partial document would misplace pos) for larger inputs.

pub fn build( msg: &str, doc: &[u8], pos: usize, lineno: usize, colno: usize, ) -> ExcData

Builds the payload for a decode error on doc, omitting the document when it exceeds Self::MAX_DOC_LEN or is not valid UTF-8.

Trait Implementations

impl Clone for JsonErrorData

fn clone(&self) -> JsonErrorData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JsonErrorData

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for JsonErrorData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for JsonErrorData

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for JsonErrorData

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for JsonErrorData

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for JsonErrorData