Package edu.umd.cs.findbugs.ba.bcp

Class Load

java.lang.Object

edu.umd.cs.findbugs.ba.bcp.PatternElement

edu.umd.cs.findbugs.ba.bcp.SingleInstruction

edu.umd.cs.findbugs.ba.bcp.FieldAccess

edu.umd.cs.findbugs.ba.bcp.Load

public class Load
extends FieldAccess

A PatternElement representing a load from a field. Variables represent the field and the result of the load.

See Also:

PatternElement

Constructor Summary

Constructors

Constructor	Description
Load(java.lang.String fieldVarName, java.lang.String resultVarName)	Constructor.

Method Summary

Modifier and Type	Method	Description
MatchResult	match(org.apache.bcel.generic.InstructionHandle handle, org.apache.bcel.generic.ConstantPoolGen cpg, ValueNumberFrame before, ValueNumberFrame after, BindingSet bindingSet)	Return whether or not this element matches the given instruction with the given Bindings in effect.

Methods inherited from class edu.umd.cs.findbugs.ba.bcp.FieldAccess

checkConsistent, isLongOrDouble, snarfFieldValue

Methods inherited from class edu.umd.cs.findbugs.ba.bcp.SingleInstruction

acceptBranch, maxOccur, minOccur

Methods inherited from class edu.umd.cs.findbugs.ba.bcp.PatternElement

addOrCheckDefinition, allowTrailingEdges, dominatedBy, getDominatedBy, getLabel, getNext, label, lookup, setAllowTrailingEdges, setIndex, setNext, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Load

public Load(java.lang.String fieldVarName,
            java.lang.String resultVarName)

Constructor.

Parameters:

fieldVarName - the name of the field variable

resultVarName - the name of the result variable

Method Detail

match

public MatchResult match(org.apache.bcel.generic.InstructionHandle handle,
                         org.apache.bcel.generic.ConstantPoolGen cpg,
                         ValueNumberFrame before,
                         ValueNumberFrame after,
                         BindingSet bindingSet)
                  throws DataflowAnalysisException

Description copied from class: PatternElement

Return whether or not this element matches the given instruction with the given Bindings in effect.

Specified by:

match in class PatternElement

Parameters:

handle - the instruction

cpg - the ConstantPoolGen from the method

before - the ValueNumberFrame representing values in the Java stack frame just before the execution of the instruction

after - the ValueNumberFrame representing values in the Java stack frame just after the execution of the instruction

bindingSet - the set of Bindings

Returns:

if the match is successful, returns a MatchResult with the PatternElement and BindingSet; if the match is not successful, returns null

Throws:

DataflowAnalysisException