Enum DatumToken 

pub enum DatumToken<B: Deref<Target = str>> {
    String(DatumOffset, B),
    Symbol(DatumOffset, B),
    SpecialID(DatumOffset, B),
    Integer(DatumOffset, i64),
    Float(DatumOffset, f64),
    ListStart(DatumOffset),
    ListEnd(DatumOffset),
}

Datum token with integrated string. Notably, integer/float are stored as their values here to prevent unwritable values existing.

Variants

String(DatumOffset, B)

String. Buffer contents are the unescaped string contents.

Symbol(DatumOffset, B)

Symbol. Buffer contents are the symbol.

SpecialID(DatumOffset, B)

Special ID. Buffer contents are the symbol (text after, but not including, ‘#’).

Integer(DatumOffset, i64)

Integer.

Float(DatumOffset, f64)

Float.

ListStart(DatumOffset)

ListEnd(DatumOffset)

Implementations

impl<B: Deref<Target = str>> DatumToken<B>

pub fn token_type(&self) -> DatumTokenType

Return the token type of this token.

pub fn buffer(&self) -> Option<&B>

Return the buffer of this token, if the type has one.

pub fn offset(&self) -> DatumOffset

Return the offset of this token.

pub fn write(&self, f: &mut dyn Write) -> Result

Writes this value as a valid, parsable Datum token.

Trait Implementations

impl<B: Clone + Deref<Target = str>> Clone for DatumToken<B>

fn clone(&self) -> DatumToken<B>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<B: Debug + Deref<Target = str>> Debug for DatumToken<B>

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

Formats the value using the given formatter.

impl<B: Deref<Target = str>> Default for DatumToken<B>

fn default() -> Self

Returns the “default value” for a type.

impl<B: Deref<Target = str>> Display for DatumToken<B>

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

Formats the value using the given formatter.

impl<B: PartialEq + Deref<Target = str>> PartialEq for DatumToken<B>

fn eq(&self, other: &DatumToken<B>) -> 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<B: Deref<Target = str>> TryFrom<(DatumTokenType, u64, B)> for DatumToken<B>

type Error = DatumError

The type returned in the event of a conversion error.

fn try_from( value: (DatumTokenType, DatumOffset, B), ) -> Result<Self, Self::Error>

Performs the conversion.

impl<B: Default + Deref<Target = str>> TryFrom<DatumToken<B>> for DatumAtom<B>

fn try_from(token: DatumToken<B>) -> DatumResult<DatumAtom<B>>

Tries to convert from a DatumToken. Due to the strings involved, this has to be done via ownership transfer.

type Error = DatumError

The type returned in the event of a conversion error.

impl<B: Copy + Deref<Target = str>> Copy for DatumToken<B>

impl<B: Deref<Target = str>> StructuralPartialEq for DatumToken<B>