org.checkerframework.framework.util.typeinference.constraint

Class F2AReducer

java.lang.Object

org.checkerframework.framework.util.typeinference.constraint.F2AReducer

All Implemented Interfaces:

AFReducer

public class F2AReducer
extends Object
implements AFReducer

F2AReducer takes an F2A constraint that is not irreducible (@see AFConstraint.isIrreducible) and reduces it by one step. The resulting constraint may still be reducible.

Generally reductions should map to corresponding rules in https://docs.oracle.com/javase/specs/jls/se10/html/jls-15.html#jls-15.12.2.7

Field Summary

Fields

Modifier and Type	Field and Description
protected org.checkerframework.framework.util.typeinference.constraint.F2AReducer.F2AReducingVisitor	visitor

Constructor Summary

Constructors

Constructor and Description
F2AReducer(AnnotatedTypeFactory typeFactory)

Method Summary

Modifier and Type	Method and Description
boolean	reduce(AFConstraint constraint, Set<AFConstraint> newConstraints) Determines if the input constraint should be handled by this reducer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

visitor

protected final org.checkerframework.framework.util.typeinference.constraint.F2AReducer.F2AReducingVisitor visitor

Constructor Detail

F2AReducer

public F2AReducer(AnnotatedTypeFactory typeFactory)

Method Detail

reduce

public boolean reduce(AFConstraint constraint,
                      Set<AFConstraint> newConstraints)

Description copied from interface: AFReducer

Determines if the input constraint should be handled by this reducer. If so: Reduces the constraint into one or more new constraints. Any new constraint that can still be reduced is placed in newConstraints. New irreducible constraints are placed in finish. Return true Return false (indicating that some other reducer needs to handle this constraint) If false is returned, the reducer should NOT place any constraints in newConstraints or finished

Specified by:

reduce in interface AFReducer

Parameters:

constraint - the constraint to reduce

newConstraints - the new constraints that may still need to be reduced

Returns:

true if the input constraint was handled by this reducer, false otherwise