rule
Defines a production rule with the given name using the DSL provided by RuleBuilder.
The pattern lambda receives a RuleBuilder context where productions can be defined using DSL methods like RuleBuilder.token, RuleBuilder.reference, and RuleBuilder.produces. The constructed rule is returned to allow capturing it for later reference.
Return
The constructed Rule
Parameters
N
The Node type produced by this rule
name
The unique name for this rule
pattern
A lambda defining the rule's productions
See also
Throws
if a rule with this name is already defined in this Grammar