Package org.jboss.byteman.agent.adapter
Class VariableAccessTriggerAdapter.VariableAccessTriggerMethodAdapter
- java.lang.Object
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- org.objectweb.asm.MethodVisitor
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- org.jboss.byteman.agent.adapter.RuleMethodAdapter
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- org.jboss.byteman.agent.adapter.RuleGeneratorAdapter
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- org.jboss.byteman.agent.adapter.RuleTriggerMethodAdapter
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- org.jboss.byteman.agent.adapter.VariableAccessTriggerAdapter.VariableAccessTriggerMethodAdapter
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- All Implemented Interfaces:
LocalScopeMethodVisitor
- Direct Known Subclasses:
VariableAccessTriggerAdapter.VariableAccessTriggerConstructorAdapter
- Enclosing class:
- VariableAccessTriggerAdapter
private class VariableAccessTriggerAdapter.VariableAccessTriggerMethodAdapter extends RuleTriggerMethodAdapter implements LocalScopeMethodVisitor
a method visitor used to add a rule event trigger call to a method
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Nested Class Summary
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Nested classes/interfaces inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter
RuleMethodAdapter.LocalVar
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Field Summary
Fields Modifier and Type Field Description private int
index
protected boolean
latched
flag used by subclass to avoid inserting trigger until after super constructor has been calledprivate int
visitedCount
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Fields inherited from class org.jboss.byteman.agent.adapter.RuleTriggerMethodAdapter
exceptions
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Fields inherited from class org.jboss.byteman.agent.adapter.RuleGeneratorAdapter
ADD, AND, DIV, EQ, GE, GT, LE, LT, MUL, NE, NEG, OR, REM, SHL, SHR, SUB, USHR, XOR
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Fields inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter
access, descriptor, localVarsByName, name, rule, transformContext
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Constructor Summary
Constructors Constructor Description VariableAccessTriggerMethodAdapter(org.objectweb.asm.MethodVisitor mv, TransformContext transformContext, int access, java.lang.String name, java.lang.String descriptor, java.lang.String signature, java.lang.String[] exceptions)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private boolean
matchCall(int opcode)
void
visitIincInsn(int var, int increment)
void
visitLocalScopeEnd(java.lang.String name, java.lang.String desc, java.lang.String signature, int stackSlot, int endOffset)
checks if the local var going out of scope is the one mentioned in the rule location and if so records that the slot is no longer active.void
visitLocalScopeStart(java.lang.String name, java.lang.String desc, java.lang.String signature, int stackSlot, int startOffset)
checks if the local var coming into scope is the one mentioned in the rule location and if so records which slot is now being used to store the variable.void
visitVarInsn(int opcode, int var)
override this so we can see track which local var slots are in use and avoid overwriting them-
Methods inherited from class org.jboss.byteman.agent.adapter.RuleTriggerMethodAdapter
getInvokedTypes, getMethodName, getNewClassName, getReturnBindingType, inBytemanHandler, inBytemanTrigger, injectTriggerPoint, inRethrowHandler, visitCode, visitEnd, visitFieldInsn, visitInsn, visitIntInsn, visitInvokeDynamicInsn, visitJumpInsn, visitLabel, visitLdcInsn, visitLookupSwitchInsn, visitMaxs, visitMethodInsn, visitMultiANewArrayInsn, visitTableSwitchInsn, visitTriggerEnd, visitTriggerStart, visitTryCatchBlock, visitTypeInsn
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Methods inherited from class org.jboss.byteman.agent.adapter.RuleGeneratorAdapter
arrayLength, arrayLoad, arrayStore, box, cast, catchException, checkCast, dup, dup2, dup2X1, dup2X2, dupX1, dupX2, endMethod, getField, getLocalType, getStatic, goTo, ifCmp, ifICmp, ifNonNull, ifNull, ifZCmp, iinc, instanceOf, invokeConstructor, invokeDynamic, invokeInterface, invokeStatic, invokeVirtual, loadArg, loadArgArray, loadArgs, loadArgs, loadLocal, loadThis, mark, mark, math, monitorEnter, monitorExit, newArray, newInstance, newLabel, newLocal, not, pop, pop2, popLocal, push, push, push, push, push, push, push, push, putField, putStatic, ret, returnValue, storeArg, storeLocal, swap, swap, tableSwitch, tableSwitch, throwException, throwException, unbox, visitFrame
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Methods inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter
getTriggerClassName, lookup, visitLocalVariable
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Methods inherited from class org.objectweb.asm.MethodVisitor
visitAnnotableParameterCount, visitAnnotation, visitAnnotationDefault, visitAttribute, visitInsnAnnotation, visitLineNumber, visitLocalVariableAnnotation, visitMethodInsn, visitParameter, visitParameterAnnotation, visitTryCatchAnnotation, visitTypeAnnotation
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Constructor Detail
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VariableAccessTriggerMethodAdapter
VariableAccessTriggerMethodAdapter(org.objectweb.asm.MethodVisitor mv, TransformContext transformContext, int access, java.lang.String name, java.lang.String descriptor, java.lang.String signature, java.lang.String[] exceptions)
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Method Detail
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visitLocalScopeStart
public void visitLocalScopeStart(java.lang.String name, java.lang.String desc, java.lang.String signature, int stackSlot, int startOffset)
checks if the local var coming into scope is the one mentioned in the rule location and if so records which slot is now being used to store the variable. this is called by the BMJSRInliner which feeds this adapter because this adapter implements LocalScopeMethodVisitor- Specified by:
visitLocalScopeStart
in interfaceLocalScopeMethodVisitor
- Parameters:
name
-desc
-signature
-stackSlot
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visitLocalScopeEnd
public void visitLocalScopeEnd(java.lang.String name, java.lang.String desc, java.lang.String signature, int stackSlot, int endOffset)
checks if the local var going out of scope is the one mentioned in the rule location and if so records that the slot is no longer active. this is called by the BMJSRInliner which feeds this adapter because this adapter implements LocalScopeMethodVisitor- Specified by:
visitLocalScopeEnd
in interfaceLocalScopeMethodVisitor
- Parameters:
name
-desc
-signature
-stackSlot
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visitVarInsn
public void visitVarInsn(int opcode, int var)
Description copied from class:RuleGeneratorAdapter
override this so we can see track which local var slots are in use and avoid overwriting them- Overrides:
visitVarInsn
in classRuleTriggerMethodAdapter
- Parameters:
opcode
- the bytecode operationvar
- local variable index
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visitIincInsn
public void visitIincInsn(int var, int increment)
- Overrides:
visitIincInsn
in classRuleTriggerMethodAdapter
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matchCall
private boolean matchCall(int opcode)
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