Struct FieldNames 

pub struct FieldNames { /* private fields */ }

The lowercase field names a section declares and forbids, with those of the sections it flattens, and whether it rejects unknown fields, as a constant.

The derive checks at compile time that no name is declared or forbidden at two levels, so that no declaration silently never receives values, and static_table_entries uses these names to classify a protocol’s static table. Declaration ids number a section’s own declarations first, in order, then each flattened section’s, in order.

Implementations

impl FieldNames

pub const fn count(&self) -> usize

The number of declarations, including those of flattened sections.

pub const fn declaration(&self, name: &str) -> Option<usize>

The declaration id of a lowercase field name, or None when no declaration has it.

pub const fn forbids(&self, name: &str) -> bool

Whether this section, or a section it flattens, forbids a lowercase field name.

pub const fn rejects_unknown(&self) -> bool

Whether the section rejects fields it neither declares nor forbids: because it says so, or because a section it flattens does.

Trait Implementations

impl Clone for FieldNames

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FieldNames

impl Debug for FieldNames

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

Formats the value using the given formatter.