Package edu.umd.cs.findbugs.ba
Class InnerClassAccessMap
java.lang.Object
edu.umd.cs.findbugs.ba.InnerClassAccessMap
Determine which methods are accessors used by inner classes to access fields
in their enclosing classes. This has been tested with javac from the Sun JDK
1.4.x, but will probably not work with other source to bytecode compilers.
The instance of InnerClassAccessMap should be retrieved from the AnalysisContext.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprivate static class
Callback to scan an access method to determine what field it accesses, and whether the field is loaded or stored. -
Field Summary
FieldsModifier and TypeFieldDescriptionprivate final Map
<String, Map<String, InnerClassAccess>> Map of class names to maps of method names to InnerClassAccess objects representing access methods.private static final boolean
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Clear the cache.static InnerClassAccessMap
create()
Create an instance.private Map
<String, InnerClassAccess> getAccessMapForClass
(String className) Return a map of inner-class member access method names to the fields that they access for given class name.private static int
getIndex
(byte[] instructionList, int index) Get an unsigned 16 bit constant pool index from a byte array.getInnerClassAccess
(String className, String methodName) Get the InnerClassAccess in given class with the given method name.getInnerClassAccess
(org.apache.bcel.generic.INVOKESTATIC inv, org.apache.bcel.generic.ConstantPoolGen cpg) Get the inner class access object for given invokestatic instruction.private static int
toInt
(byte b) Convert byte to unsigned int.
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Field Details
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DEBUG
private static final boolean DEBUG -
classToAccessMap
Map of class names to maps of method names to InnerClassAccess objects representing access methods.
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Constructor Details
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InnerClassAccessMap
private InnerClassAccessMap()Constructor.
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Method Details
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create
Create an instance.- Returns:
- a new instance of InnerClassAccessMap
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getInnerClassAccess
public InnerClassAccess getInnerClassAccess(String className, String methodName) throws ClassNotFoundException Get the InnerClassAccess in given class with the given method name.- Parameters:
className
- the name of the classmethodName
- the name of the access method- Returns:
- the InnerClassAccess object for the method, or null if the method doesn't seem to be an inner class access
- Throws:
ClassNotFoundException
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getInnerClassAccess
public InnerClassAccess getInnerClassAccess(org.apache.bcel.generic.INVOKESTATIC inv, org.apache.bcel.generic.ConstantPoolGen cpg) throws ClassNotFoundException Get the inner class access object for given invokestatic instruction. Returns null if the called method is not an inner class access.- Parameters:
inv
- the invokestatic instructioncpg
- the ConstantPoolGen for the method- Returns:
- the InnerClassAccess, or null if the call is not an inner class access
- Throws:
ClassNotFoundException
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clearCache
public void clearCache()Clear the cache. -
toInt
private static int toInt(byte b) Convert byte to unsigned int. -
getIndex
private static int getIndex(byte[] instructionList, int index) Get an unsigned 16 bit constant pool index from a byte array. -
getAccessMapForClass
private Map<String,InnerClassAccess> getAccessMapForClass(String className) throws ClassNotFoundException Return a map of inner-class member access method names to the fields that they access for given class name.- Parameters:
className
- the name of the class- Returns:
- map of access method names to the fields they access
- Throws:
ClassNotFoundException
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