dataflow.src.org.checkerframework.dataflow.cfg.block.SingleSuccessorBlockImpl Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of checker Show documentation

The Checker Framework enhances Java’s type system to make it more powerful and useful. This lets software developers detect and prevent errors in their Java programs. The Checker Framework includes compiler plug-ins ("checkers") that find bugs or verify their absence. It also permits you to write your own compiler plug-ins.

There is a newer version: 3.42.0

Show newest version

package org.checkerframework.dataflow.cfg.block;

/*>>>
import org.checkerframework.checker.nullness.qual.Nullable;
*/

import org.checkerframework.dataflow.analysis.Store;

/**
 * Implementation of a non-special basic block.
 *
 * @author Stefan Heule
 *
 */
public abstract class SingleSuccessorBlockImpl extends BlockImpl implements
        SingleSuccessorBlock {

    /** Internal representation of the successor. */
    protected /*@Nullable*/ BlockImpl successor;

    /**
     * The rule below say that EACH store at the end of a single
     * successor block flow to the corresponding store of the successor.
     */
    protected Store.FlowRule flowRule = Store.FlowRule.EACH_TO_EACH;

    @Override
    public /*@Nullable*/ Block getSuccessor() {
        return successor;
    }

    /**
     * Set a basic block as the successor of this block.
     */
    public void setSuccessor(BlockImpl successor) {
        this.successor = successor;
        successor.addPredecessor(this);
    }

    @Override
    public Store.FlowRule getFlowRule() {
        return flowRule;
    }

    @Override
    public void setFlowRule(Store.FlowRule rule) {
        flowRule = rule;
    }
}