Gramur/net.archandle.gramur.parser/ReferenceElement

ReferenceElement

class ReferenceElement<N : Node>(val rule: () -> Rule<N>) : PatternElement

A PatternElement that matches a nonterminal Rule reference.

ReferenceElement invokes another rule's parsing logic at the current position. If the referenced rule matches, its resulting Node is added to the current capture.

The rule parameter is a lazily-evaluated lambda to support forward references to rules that haven't been defined yet.

Parameters

The type of Node produced by the referenced rule

Constructors

ReferenceElement

constructor(rule: () -> Rule<N>)

Properties

rule

val rule: () -> Rule<N>

A lambda that returns the rule to match

Functions

captureAt

open override fun captureAt(tokenIndex: Int, capture: Node.ParserCapture): Int