Struct DocumentAttributeValue 

pub struct DocumentAttributeValue<'a>(/* private fields */);

A defined document attribute, including its retained text representation.

Numeric values use attribute-specific validation. Text is not inferred to be numeric merely because it contains digits.

Implementations

impl<'a> DocumentAttributeValue<'a>

pub fn as_str(&self) -> Option<&str>

Return text only when the semantic value is textual.

pub const fn as_integer(&self) -> Option<i128>

Return the validated integer, without parsing a textual value.

pub const fn is_presence(&self) -> bool

Return whether the attribute was set without a semantic value.

pub fn text(&self) -> Option<&str>

Return retained text, including the spelling of an explicit integer.

Presence and generated integer defaults have no supplied text. This does not remove surrounding quotes or undo definition-time substitution.

pub fn write_text<W: Write>(&self, output: &mut W) -> Result

Write the attribute-reference representation without allocating.

Presence writes nothing; explicit integers retain their spelling.

Errors

Returns errors from the output buffer.

pub fn into_static(self) -> DocumentAttributeValue<'static>

Consume the value, retaining existing allocations for owned text.

Trait Implementations

impl<'a> Clone for DocumentAttributeValue<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for DocumentAttributeValue<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for DocumentAttributeValue<'a>

impl<'a> From<&'a str> for DocumentAttributeValue<'a>

fn from(value: &'a str) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, str>> for DocumentAttributeValue<'a>

fn from(value: Cow<'a, str>) -> Self

Converts to this type from the input type.

impl From<String> for DocumentAttributeValue<'_>

fn from(value: String) -> Self

Converts to this type from the input type.

impl<'a> PartialEq for DocumentAttributeValue<'a>

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

Equality operator ==.

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

Inequality operator !=.

impl<'a> StructuralPartialEq for DocumentAttributeValue<'a>