public Class EmptyPredictionContext

Represents $ in local context prediction, which means wildcard. *+x = *.

Overrides org.antlr.v4.runtime.atn.SingletonPredictionContext.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

o:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

Overrides org.antlr.v4.runtime.atn.SingletonPredictionContext.getParent.

Annotations

@Override

Overrides org.antlr.v4.runtime.atn.SingletonPredictionContext.getReturnState.

Annotations

@Override

Overrides org.antlr.v4.runtime.atn.PredictionContext.isEmpty.

Doc from org.antlr.v4.runtime.atn.PredictionContext.isEmpty.

This means only the EmptyPredictionContext#Instance (wildcard? not sure) context is in set.

Annotations

@Override

Overrides org.antlr.v4.runtime.atn.SingletonPredictionContext.size.

Annotations

@Override

Overrides org.antlr.v4.runtime.atn.SingletonPredictionContext.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations

@Override