Struct MemberMatch 

pub struct MemberMatch {
    pub matcher: NodeMatch,
    pub required: bool,
}

One slot in a parse rule’s correlated input member-set (CFM-83).

A member-match is a NodeMatch plus whether the slot must be filled for a group to form. The ordered member list of a ParseDescriptor is its input anchor (always a required size-1 member) followed by any extra_members. A single-input parser declares no extra members, so its member-set is exactly [{ input, required: true }] — the size-1 degenerate case the engine still drives through the same enumeration path.

Fields

matcher: NodeMatch

required: bool

Implementations

impl MemberMatch

pub fn required(matcher: NodeMatch) -> Self

A required member slot.

pub fn optional(matcher: NodeMatch) -> Self

An optional member slot — a group may form without it.

Trait Implementations

impl Clone for MemberMatch

fn clone(&self) -> MemberMatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemberMatch

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemberMatch

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<NodeMatch> for MemberMatch

A plain NodeMatch is the size-1 required member: the ergonomic single-input case promised by CFM-83’s ADR.

fn from(matcher: NodeMatch) -> Self

Converts to this type from the input type.

impl PartialEq for MemberMatch

fn eq(&self, other: &MemberMatch) -> 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 Serialize for MemberMatch

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 MemberMatch

impl StructuralPartialEq for MemberMatch