deadlocalstoreproperty.java

A static analysis tool to find bugs in Java programs

package edu.umd.cs.findbugs.detect;

import edu.umd.cs.findbugs.props.AbstractWarningProperty;
import edu.umd.cs.findbugs.props.PriorityAdjustment;

/**
 * Warning property for FindDeadLocalStores.
 * 
 * @author David Hovemeyer
 */
public class DeadLocalStoreProperty extends AbstractWarningProperty {
	private DeadLocalStoreProperty(String name, PriorityAdjustment priorityAdjustment) {
		super(name, priorityAdjustment);
	}

	/** Store is killed by a subsequent store. */
	public static final DeadLocalStoreProperty KILLED_BY_SUBSEQUENT_STORE = new DeadLocalStoreProperty(
			"KILLED_BY_SUBSEQUENT_STORE", PriorityAdjustment.LOWER_PRIORITY);

	/** Dead store is of a defense programming constant value. */
	public static final DeadLocalStoreProperty DEFENSIVE_CONSTANT_OPCODE = new DeadLocalStoreProperty(
			"DEFENSIVE_CONSTANT_OPCODE", PriorityAdjustment.A_LITTLE_BIT_LOWER_PRIORITY);

	/** Dead store is likely to be the exception object in an exception handler. */
	public static final DeadLocalStoreProperty EXCEPTION_HANDLER = new DeadLocalStoreProperty("EXCEPTION_HANDLER",
			PriorityAdjustment.FALSE_POSITIVE);

	/** The dead store is an increment. */
	public static final DeadLocalStoreProperty DEAD_INCREMENT = new DeadLocalStoreProperty("DEAD_INCREMENT",
			PriorityAdjustment.LOWER_PRIORITY);
	public static final DeadLocalStoreProperty METHOD_RESULT = new DeadLocalStoreProperty("METHOD_RESULT",
			PriorityAdjustment.A_LITTLE_BIT_HIGHER_PRIORITY);

	/** The dead store is an increment: the only one in the method. */
	public static final DeadLocalStoreProperty SINGLE_DEAD_INCREMENT = new DeadLocalStoreProperty("SINGLE_DEAD_INCREMENT",
			PriorityAdjustment.RAISE_PRIORITY);

	/** Dead store is of a newly allocated object. */
	public static final DeadLocalStoreProperty DEAD_OBJECT_STORE = new DeadLocalStoreProperty("DEAD_OBJECT_STORE",
			PriorityAdjustment.RAISE_PRIORITY);

	/** Method contains two stores and multiple loads of this local. */
	public static final DeadLocalStoreProperty TWO_STORES_MULTIPLE_LOADS = new DeadLocalStoreProperty(
			"TWO_STORES_MULTIPLE_LOADS", PriorityAdjustment.NO_ADJUSTMENT);

	/** There is only one store of this local. (Maybe it's final?) */
	public static final DeadLocalStoreProperty SINGLE_STORE = new DeadLocalStoreProperty("SINGLE_STORE",
			PriorityAdjustment.FALSE_POSITIVE);

	/** There are no loads of this local. (Maybe it's final?). */
	public static final DeadLocalStoreProperty NO_LOADS = new DeadLocalStoreProperty("NO_LOADS",
			PriorityAdjustment.A_LITTLE_BIT_LOWER_PRIORITY);

	/** Variable shadows a fields with the same name */
	public static final DeadLocalStoreProperty SHADOWS_FIELD = new DeadLocalStoreProperty("SHADOWS_FIELD",
			PriorityAdjustment.RAISE_PRIORITY);

	public static final DeadLocalStoreProperty SYNTHETIC_NAME = new DeadLocalStoreProperty("SYNTHETIC_NAME",
			PriorityAdjustment.AT_MOST_LOW);

	/** This local is a parameter which is dead on entry to the method. */
	public static final DeadLocalStoreProperty PARAM_DEAD_ON_ENTRY = new DeadLocalStoreProperty("PARAM_DEAD_ON_ENTRY",
			PriorityAdjustment.RAISE_PRIORITY_TO_HIGH);

	/** Name of the local variable. */
	public static final DeadLocalStoreProperty LOCAL_NAME = new DeadLocalStoreProperty("LOCAL_NAME",
			PriorityAdjustment.NO_ADJUSTMENT);

	/** Caching value */
	public static final DeadLocalStoreProperty CACHING_VALUE = new DeadLocalStoreProperty("CACHING_VALUE",
			PriorityAdjustment.LOWER_PRIORITY);

	/** copy value */
	public static final DeadLocalStoreProperty COPY_VALUE = new DeadLocalStoreProperty("COPY_VALUE",
			PriorityAdjustment.A_LITTLE_BIT_LOWER_PRIORITY);

	/** primitive or string */
	public static final DeadLocalStoreProperty BASE_VALUE = new DeadLocalStoreProperty("BASE_VALUE",
			PriorityAdjustment.A_LITTLE_BIT_LOWER_PRIORITY);

	/** many stores */
	public static final DeadLocalStoreProperty MANY_STORES = new DeadLocalStoreProperty("MANY_STORES",
			PriorityAdjustment.LOWER_PRIORITY);

	public static final DeadLocalStoreProperty STORE_OF_NULL = new DeadLocalStoreProperty("STORE_OF_NULL",
			PriorityAdjustment.AT_MOST_LOW);

	public static final DeadLocalStoreProperty STORE_OF_CONSTANT = new DeadLocalStoreProperty("STORE_OF_CONSTANT",
			PriorityAdjustment.LOWER_PRIORITY);

	public static final DeadLocalStoreProperty IS_PARAMETER = new DeadLocalStoreProperty("IS_PARAMETER",
			PriorityAdjustment.RAISE_PRIORITY);

}