org.antlr.analysis
Class Transition
java.lang.Object
org.antlr.analysis.Transition
- All Implemented Interfaces:
- java.lang.Comparable
- Direct Known Subclasses:
- RuleClosureTransition
public class Transition
- extends java.lang.Object
- implements java.lang.Comparable
A generic transition between any two state machine states. It defines
some special labels that indicate things like epsilon transitions and
that the label is actually a set of labels or a semantic predicate.
This is a one way link. It emanates from a state (usually via a list of
transitions) and has a label/target pair. I have abstracted the notion
of a Label to handle the various kinds of things it can be.
Field Summary |
Label |
label
What label must be consumed to transition to target |
State |
target
The target of this transition |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
label
public Label label
- What label must be consumed to transition to target
target
public State target
- The target of this transition
Transition
public Transition(Label label,
State target)
Transition
public Transition(int label,
State target)
isEpsilon
public boolean isEpsilon()
isSemanticPredicate
public boolean isSemanticPredicate()
hashCode
public int hashCode()
- Overrides:
hashCode
in class java.lang.Object
equals
public boolean equals(java.lang.Object o)
- Overrides:
equals
in class java.lang.Object
compareTo
public int compareTo(java.lang.Object o)
- Specified by:
compareTo
in interface java.lang.Comparable
toString
public java.lang.String toString()
- Overrides:
toString
in class java.lang.Object