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java.lang.Objectedu.umd.cs.findbugs.ba.vna.AvailableLoad
public class AvailableLoad
An AvailableLoad indicates a field and (optionally) object reference for which a value is available. It is used to implement redundant load elimination and forward substitution in ValueNumberAnalysis. The idea is that programmers often reload fields unnecessarily when they "know" that the value will not change. In order to deduce the intended meaning of such code, our analyses need to figure out that such loads return the same value.
AvailableLoad objects may be used as keys in both hash and tree sets and maps.
ValueNumberAnalysis
Constructor Summary | |
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AvailableLoad(ValueNumber reference,
XField field)
Constructor from object reference and instance field. |
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AvailableLoad(XField staticField)
Constructor from static field. |
Method Summary | |
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int |
compareTo(AvailableLoad other)
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boolean |
equals(java.lang.Object o)
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XField |
getField()
Get the field for which a load is available. |
ValueNumber |
getReference()
Get the ValueNumber of the object reference. |
int |
hashCode()
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boolean |
matchesReference(ValueNumber v)
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java.lang.String |
toString()
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Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public AvailableLoad(XField staticField)
staticField
- the StaticFieldpublic AvailableLoad(ValueNumber reference, XField field)
reference
- the ValueNumber of the object referencefield
- the InstanceFieldMethod Detail |
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public ValueNumber getReference()
public boolean matchesReference(ValueNumber v)
public XField getField()
public int compareTo(AvailableLoad other)
compareTo
in interface java.lang.Comparable<AvailableLoad>
public int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object o)
equals
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object
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