org.antlr.v4.runtime

Annotation Type RuleDependency

@Retention(value=RUNTIME)
 @Target(value={TYPE,CONSTRUCTOR,METHOD,FIELD})
public @interface RuleDependency

Declares a dependency upon a grammar rule, along with a set of zero or more dependent rules.

Version numbers within a grammar should be assigned on a monotonically increasing basis to allow for accurate tracking of dependent rules.

Author:

Sam Harwell

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
Class<? extends Recognizer<?,?>>	recognizer
int	rule
int	version

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
Dependents[]	dependents Specifies the set of grammar rules related to rule() which the annotated element depends on.

Element Detail

recognizer

public abstract Class<? extends Recognizer<?,?>> recognizer

rule

public abstract int rule

version

public abstract int version

dependents

public abstract Dependents[] dependents

Specifies the set of grammar rules related to rule() which the annotated element depends on. Even when absent from this set, the annotated element is implicitly dependent upon the explicitly specified rule(), which corresponds to the Dependents.SELF element.

By default, the annotated element is dependent upon the specified rule() and its Dependents.PARENTS, i.e. the rule within one level of context information. The parents are included since the most frequent assumption about a rule is where it's used in the grammar.

Default:

{org.antlr.v4.runtime.Dependents.SELF, org.antlr.v4.runtime.Dependents.PARENTS}