public class UnaryTransition extends java.lang.Object implements Transition
Modifier and Type | Field and Description |
---|---|
boolean |
isRoot
root transitions are illegal in the middle of the tree, naturally
|
java.lang.String |
label |
Constructor and Description |
---|
UnaryTransition(java.lang.String label,
boolean isRoot) |
Modifier and Type | Method and Description |
---|---|
State |
apply(State state)
Add a unary node to the existing node on top of the stack
|
State |
apply(State state,
double scoreDelta)
Add a unary node to the existing node on top of the stack
|
boolean |
equals(java.lang.Object o) |
int |
hashCode() |
boolean |
isLegal(State state,
java.util.List<ParserConstraint> constraints)
Legal as long as there is at least one item on the state's stack.
|
java.lang.String |
toString() |
public final java.lang.String label
public final boolean isRoot
public boolean isLegal(State state, java.util.List<ParserConstraint> constraints)
isLegal
in interface Transition
public State apply(State state)
apply
in interface Transition
public State apply(State state, double scoreDelta)
apply
in interface Transition
public boolean equals(java.lang.Object o)
equals
in class java.lang.Object
public int hashCode()
hashCode
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object