Enum ParseErrorKind 

pub enum ParseErrorKind {
    UnexpectedHole,
    TypeMismatch {
        expected: ValueKind,
        actual: ValueKind,
    },
    MissingField(String),
    MissingExtension(String),
    UnknownVariant(String),
    OutOfRange(String),
    InvalidPattern {
        kind: String,
        reason: String,
    },
    Nested {
        path: String,
        source: Box<ParseErrorKind>,
    },
    InvalidIdentifier(IdentifierError),
    UnexpectedTupleLength {
        expected: usize,
        actual: usize,
    },
    UnknownField(String),
    UnknownExtension(Identifier),
    InvalidKeyType(ObjectKey),
    NoMatchingVariant {
        variant: Option<String>,
    },
    ConflictingVariantTags {
        explicit: String,
        repr: String,
    },
    AmbiguousUnion(Vec<String>),
    LiteralMismatch {
        expected: String,
        actual: String,
    },
    UnexpectedVariantPath(VariantPath),
    InvalidVariantType(ValueKind),
    InvalidVariantPath(String),
    RecordInExtensionScope,
}

Error type for parsing failures.

Variants

UnexpectedHole

Unexpected uninitialized value.

TypeMismatch

Type mismatch between expected and actual value.

Fields

expected: ValueKind

actual: ValueKind

MissingField(String)

Required field is missing.

MissingExtension(String)

Required extension is missing.

UnknownVariant(String)

Unknown variant in a union type.

OutOfRange(String)

Value is out of valid range.

InvalidPattern

Invalid value pattern or format.

Used for validation errors in types like regex, URL, UUID, etc.

• kind: Type of validation (e.g., “regex”, “url”, “uuid”, “pattern: ”)
• reason: Human-readable error message explaining the failure

Fields

kind: String

reason: String

Nested

Nested parse error with path context.

Fields

path: String

source: Box<ParseErrorKind>

InvalidIdentifier(IdentifierError)

Invalid identifier.

UnexpectedTupleLength

Unexpected tuple length.

Fields

expected: usize

actual: usize

UnknownField(String)

Unknown field in record.

UnknownExtension(Identifier)

Unknown extension on node.

InvalidKeyType(ObjectKey)

Invalid key type in record (expected string).

NoMatchingVariant

No variant matched in union type.

Fields

variant: Option<String>

Variant name extracted (if any).

ConflictingVariantTags

Conflicting variant tags: $variant and repr extracted different variant names.

Fields

explicit: String

repr: String

AmbiguousUnion(Vec<String>)

Multiple variants matched with no priority to resolve.

LiteralMismatch

Literal value mismatch.

Fields

expected: String

actual: String

UnexpectedVariantPath(VariantPath)

Variant path provided but type is not a union.

InvalidVariantType(ValueKind)

$variant extension has invalid type (not a string).

InvalidVariantPath(String)

$variant extension has invalid path syntax.

RecordInExtensionScope

Tried to parse record fields while in extension flatten scope. This happens when using #[eure(flatten_ext)] with a type that calls parse_record().

Implementations

impl ParseErrorKind

pub fn at(self, path: impl Into<String>) -> Self

Wrap this error with path context.

Trait Implementations

impl Clone for ParseErrorKind

fn clone(&self) -> ParseErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseErrorKind

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

Formats the value using the given formatter.

impl Display for ParseErrorKind

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

Formats the value using the given formatter.

impl Error for ParseErrorKind

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<IdentifierError> for ParseErrorKind

fn from(source: IdentifierError) -> Self

Converts to this type from the input type.

impl PartialEq for ParseErrorKind

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ParseErrorKind