TraceMethodVisitor (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.asm.util
Class TraceMethodVisitor

java.lang.Object
  org.drools.asm.util.AbstractVisitor
      org.drools.asm.util.TraceAbstractVisitor
          org.drools.asm.util.TraceMethodVisitor

All Implemented Interfaces:: MethodVisitor

public class TraceMethodVisitor
extends TraceAbstractVisitor
implements MethodVisitor
extends TraceAbstractVisitor
implements MethodVisitor

A MethodVisitor that prints a disassembled view of the methods it visits.

Author:: Eric Bruneton

Field Summary

protected HashMap labelNames
          The label names.

protected String ltab
          Tab for labels.

protected MethodVisitor mv
          The MethodVisitor to which this visitor delegates calls.

protected String tab2
          Tab for bytecode instructions.

protected String tab3
          Tab for table and lookup switch instructions.

Fields inherited from class org.drools.asm.util.TraceAbstractVisitor

CLASS_DECLARATION, CLASS_SIGNATURE, FIELD_DESCRIPTOR, FIELD_SIGNATURE, INTERNAL_NAME, METHOD_DESCRIPTOR, METHOD_SIGNATURE, PARAMETERS_DECLARATION, tab, TYPE_DECLARATION

Fields inherited from class org.drools.asm.util.AbstractVisitor

buf, OPCODES, text, TYPES

Constructor Summary

TraceMethodVisitor()
          Constructs a new TraceMethodVisitor.

TraceMethodVisitor(MethodVisitor mv)
          Constructs a new TraceMethodVisitor.

Method Summary

void appendLabel(Label l)
          Appends the name of the given label to buf.

AnnotationVisitor visitAnnotation(String desc, boolean visible)
          Prints a disassembled view of the given annotation.

AnnotationVisitor visitAnnotationDefault()
          Visits the default value of this annotation interface method.

void visitAttribute(Attribute attr)
          Prints a disassembled view of the given attribute.

void visitCode()
          Starts the visit of the method's code, if any (i.e.

void visitEnd()
          Does nothing.

void visitFieldInsn(int opcode, String owner, String name, String desc)
          Visits a field instruction.

void visitIincInsn(int var, int increment)
          Visits an IINC instruction.

void visitInsn(int opcode)
          Visits a zero operand instruction.

void visitIntInsn(int opcode, int operand)
          Visits an instruction with a single int operand.

void visitJumpInsn(int opcode, Label label)
          Visits a jump instruction.

void visitLabel(Label label)
          Visits a label.

void visitLdcInsn(Object cst)
          Visits a LDC instruction.

void visitLineNumber(int line, Label start)
          Visits a line number declaration.

void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index)
          Visits a local variable declaration.

void visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels)
          Visits a LOOKUPSWITCH instruction.

void visitMaxs(int maxStack, int maxLocals)
          Visits the maximum stack size and the maximum number of local variables of the method.

void visitMethodInsn(int opcode, String owner, String name, String desc)
          Visits a method instruction.

void visitMultiANewArrayInsn(String desc, int dims)
          Visits a MULTIANEWARRAY instruction.

AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible)
          Visits an annotation of a parameter this method.

void visitTableSwitchInsn(int min, int max, Label dflt, Label[] labels)
          Visits a TABLESWITCH instruction.

void visitTryCatchBlock(Label start, Label end, Label handler, String type)
          Visits a try catch block.

void visitTypeInsn(int opcode, String desc)
          Visits a type instruction.

void visitVarInsn(int opcode, int var)
          Visits a local variable instruction.

Methods inherited from class org.drools.asm.util.TraceAbstractVisitor

appendDescriptor, createTraceAnnotationVisitor

Methods inherited from class org.drools.asm.util.AbstractVisitor

appendString, getDefaultAttributes, getText

Methods inherited from class java.lang.Object

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

Field Summary
`protected HashMap`	`labelNames` The label names.
`protected String`	`ltab` Tab for labels.
`protected MethodVisitor`	`mv` The `MethodVisitor` to which this visitor delegates calls.
`protected String`	`tab2` Tab for bytecode instructions.
`protected String`	`tab3` Tab for table and lookup switch instructions.

Fields inherited from class org.drools.asm.util.TraceAbstractVisitor
`CLASS_DECLARATION, CLASS_SIGNATURE, FIELD_DESCRIPTOR, FIELD_SIGNATURE, INTERNAL_NAME, METHOD_DESCRIPTOR, METHOD_SIGNATURE, PARAMETERS_DECLARATION, tab, TYPE_DECLARATION`

Fields inherited from class org.drools.asm.util.AbstractVisitor
`buf, OPCODES, text, TYPES`

Constructor Summary
`TraceMethodVisitor()` Constructs a new `TraceMethodVisitor`.
`TraceMethodVisitor(MethodVisitor mv)` Constructs a new `TraceMethodVisitor`.

Method Summary
`void`	`appendLabel(Label l)` Appends the name of the given label to `buf`.
`AnnotationVisitor`	`visitAnnotation(String desc, boolean visible)` Prints a disassembled view of the given annotation.
`AnnotationVisitor`	`visitAnnotationDefault()` Visits the default value of this annotation interface method.
`void`	`visitAttribute(Attribute attr)` Prints a disassembled view of the given attribute.
`void`	`visitCode()` Starts the visit of the method's code, if any (i.e.
`void`	`visitEnd()` Does nothing.
`void`	`visitFieldInsn(int opcode, String owner, String name, String desc)` Visits a field instruction.
`void`	`visitIincInsn(int var, int increment)` Visits an IINC instruction.
`void`	`visitInsn(int opcode)` Visits a zero operand instruction.
`void`	`visitIntInsn(int opcode, int operand)` Visits an instruction with a single int operand.
`void`	`visitJumpInsn(int opcode, Label label)` Visits a jump instruction.
`void`	`visitLabel(Label label)` Visits a label.
`void`	`visitLdcInsn(Object cst)` Visits a LDC instruction.
`void`	`visitLineNumber(int line, Label start)` Visits a line number declaration.
`void`	`visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index)` Visits a local variable declaration.
`void`	`visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels)` Visits a LOOKUPSWITCH instruction.
`void`	`visitMaxs(int maxStack, int maxLocals)` Visits the maximum stack size and the maximum number of local variables of the method.
`void`	`visitMethodInsn(int opcode, String owner, String name, String desc)` Visits a method instruction.
`void`	`visitMultiANewArrayInsn(String desc, int dims)` Visits a MULTIANEWARRAY instruction.
`AnnotationVisitor`	`visitParameterAnnotation(int parameter, String desc, boolean visible)` Visits an annotation of a parameter this method.
`void`	`visitTableSwitchInsn(int min, int max, Label dflt, Label[] labels)` Visits a TABLESWITCH instruction.
`void`	`visitTryCatchBlock(Label start, Label end, Label handler, String type)` Visits a try catch block.
`void`	`visitTypeInsn(int opcode, String desc)` Visits a type instruction.
`void`	`visitVarInsn(int opcode, int var)` Visits a local variable instruction.

Methods inherited from class org.drools.asm.util.TraceAbstractVisitor
`appendDescriptor, createTraceAnnotationVisitor`

Methods inherited from class org.drools.asm.util.AbstractVisitor
`appendString, getDefaultAttributes, getText`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

mv

protected MethodVisitor mv

The MethodVisitor to which this visitor delegates calls. May be null.

tab2

protected String tab2

Tab for bytecode instructions.

tab3

protected String tab3

Tab for table and lookup switch instructions.

ltab

protected String ltab

Tab for labels.

labelNames

protected final HashMap labelNames

The label names. This map associate String values to Label keys.

Constructor Detail

TraceMethodVisitor

public TraceMethodVisitor()

Constructs a new TraceMethodVisitor.

TraceMethodVisitor

public TraceMethodVisitor(MethodVisitor mv)

Constructs a new TraceMethodVisitor.

Parameters:: mv - the MethodVisitor to which this visitor delegates calls. May be null.

Method Detail

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)

Description copied from class: TraceAbstractVisitor

Prints a disassembled view of the given annotation.

Specified by:: visitAnnotation in interface MethodVisitor
Overrides:: visitAnnotation in class TraceAbstractVisitor

Parameters:: desc - the class descriptor of the annotation class.; visible - true if the annotation is visible at runtime.
Returns:: a visitor to visit the annotation values.

visitAttribute

public void visitAttribute(Attribute attr)

Description copied from class: TraceAbstractVisitor

Prints a disassembled view of the given attribute.

Specified by:: visitAttribute in interface MethodVisitor
Overrides:: visitAttribute in class TraceAbstractVisitor

Parameters:: attr - an attribute.