Enum ParseErrorReason

pub enum ParseErrorReason {
    Eof {
        expected: String,
        span: Span,
    },
    ExtraTokens {
        actual: Spanned<String>,
    },
    Mismatch {
        expected: String,
        actual: Spanned<String>,
    },
    Unclosed {
        delimiter: String,
        span: Span,
    },
    GeneralError {
        message: String,
        label: Spanned<String>,
    },
    ArgumentError {
        command: Spanned<String>,
        error: ArgumentError,
    },
}

A structured reason for a ParseError. Note that parsing in nu is more like macro expansion in other languages, so the kinds of errors that can occur during parsing are more contextual than you might expect.

Variants

Eof

The parser encountered an EOF rather than what it was expecting

Fields

expected: String

span: Span

ExtraTokens

The parser expected to see the end of a token stream (possibly the token stream from inside a delimited token node), but found something else.

Fields

actual: Spanned<String>

Mismatch

The parser encountered something other than what it was expecting

Fields

expected: String

actual: Spanned<String>

Unclosed

Unclosed delimiter

Fields

delimiter: String

span: Span

GeneralError

An unexpected internal error has occurred

Fields

message: String

label: Spanned<String>

ArgumentError

The parser tried to parse an argument for a command, but it failed for some reason

Fields

command: Spanned<String>

error: ArgumentError

Trait Implementations

impl Clone for ParseErrorReason

fn clone(&self) -> ParseErrorReason

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ParseErrorReason

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ParseErrorReason

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ParseErrorReason

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 Ord for ParseErrorReason

fn cmp(&self, other: &ParseErrorReason) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ParseErrorReason

fn eq(&self, other: &ParseErrorReason) -> 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 PartialOrd for ParseErrorReason

fn partial_cmp(&self, other: &ParseErrorReason) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ParseErrorReason

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ParseErrorReason

impl StructuralPartialEq for ParseErrorReason