Top Description Fields Constructors Methods
org.eclipse.persistence.internal.libraries.asm.commons

public Class AnalyzerAdapter

extends MethodVisitor
Class Inheritance
Imports
java.util.ArrayList, .HashMap, .List, .Map, org.eclipse.persistence.internal.libraries.asm.ConstantDynamic, .Handle, .Label, .MethodVisitor, .Opcodes, .Type
A MethodVisitor that keeps track of stack map frame changes between visitFrame(int, int, Object[], int, Object[]) calls. This adapter must be used with the org.eclipse.persistence.internal.libraries.asm.ClassReader#EXPAND_FRAMES option. Each visitX instruction delegates to the next visitor in the chain, if any, and then simulates the effect of this instruction on the stack map frame, represented by locals and stack. The next visitor in the chain can get the state of the stack map frame before each instruction by reading the value of these fields in its visitX methods (this requires a reference to the AnalyzerAdapter that is before it in the chain). If this adapter is used with a class that does not contain stack map table attributes (i.e., pre Java 6 classes) then this adapter may not be able to compute the stack map frame for each instruction. In this case no exception is thrown but the locals and stack fields will be null for these instructions.
Author
Eric Bruneton

Field Summary

Modifier and TypeField and Description
private List<Label>
labels

The labels that designate the next instruction to be visited.

public List<Object>
locals

The local variable slots for the current execution frame.

private int
maxLocals

The maximum number of local variables of this method.

private int
maxStack

The maximum stack size of this method.

private String
owner

The owner's class name.

public List<Object>
stack

The operand stack slots for the current execution frame.

public Map<Object, Object>
uninitializedTypes

The uninitialized types in the current execution frame.

Inherited from org.eclipse.persistence.internal.libraries.asm.MethodVisitor:
apimv

Constructor Summary

AccessConstructor and Description
public
AnalyzerAdapter(final String
the owner's class name.
owner, final int
the method's access flags (see Opcodes).
access, final String
the method's name.
name, final String
the method's descriptor (see Type).
descriptor, final MethodVisitor
the method visitor to which this adapter delegates calls. May be null.
methodVisitor)

Constructs a new AnalyzerAdapter.

protected
AnalyzerAdapter(final int
the ASM API version implemented by this visitor. Must be one of the ASMx values in Opcodes.
api, final String
the owner's class name.
owner, final int
the method's access flags (see Opcodes).
access, final String
the method's name.
name, final String
the method's descriptor (see Type).
descriptor, final MethodVisitor
the method visitor to which this adapter delegates calls. May be null.
methodVisitor)

Constructs a new AnalyzerAdapter.

Method Summary

Modifier and TypeMethod and Description
private void
execute(final int opcode, final int intArg, final String stringArg)

private Object
get(final int local)

private Object
pop()

private void
pop(final int numSlots)

private void
pop(final String descriptor)

private void
push(final Object type)

private void
pushDescriptor(final String fieldOrMethodDescriptor)

private void
set(final int local, final Object type)

public void
visitFieldInsn(final int
the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.
opcode, final String
the internal name of the field's owner class (see Type#getInternalName()).
owner, final String
the field's name.
name, final String
the field's descriptor (see Type).
descriptor)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitFieldInsn.

Visits a field instruction.
public void
visitFrame(final int
the type of this stack map frame. Must be Opcodes#F_NEW for expanded frames, or Opcodes#F_FULL, Opcodes#F_APPEND, Opcodes#F_CHOP, Opcodes#F_SAME or Opcodes#F_APPEND, Opcodes#F_SAME1 for compressed frames.
type, final int
the number of local variables in the visited frame. Long and double values count for one variable.
numLocal, final Object[]
the local variable types in this frame. This array must not be modified. Primitive types are represented by Opcodes#TOP, Opcodes#INTEGER, Opcodes#FLOAT, Opcodes#LONG, Opcodes#DOUBLE, Opcodes#NULL or Opcodes#UNINITIALIZED_THIS (long and double are represented by a single element). Reference types are represented by String objects (representing internal names, see Type#getInternalName()), and uninitialized types by Label objects (this label designates the NEW instruction that created this uninitialized value).
local, final int
the number of operand stack elements in the visited frame. Long and double values count for one stack element.
numStack, final Object[]
the operand stack types in this frame. This array must not be modified. Its content has the same format as the "local" array.
stack)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitFrame.

Visits the current state of the local variables and operand stack elements.
private static void
visitFrameTypes(final int numTypes, final Object[] frameTypes, final List<Object> result)

public void
visitIincInsn(final int
index of the local variable to be incremented.
varIndex, final int
amount to increment the local variable by.
increment)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitIincInsn.

Visits an IINC instruction.
public void
visitInsn(final int
the opcode of the instruction to be visited. This opcode is either NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER, or MONITOREXIT.
opcode)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitInsn.

Visits a zero operand instruction.
public void
visitIntInsn(final int
the opcode of the instruction to be visited. This opcode is either BIPUSH, SIPUSH or NEWARRAY.
opcode, final int
the operand of the instruction to be visited.
When opcode is BIPUSH, operand value should be between Byte.MIN_VALUE and Byte.MAX_VALUE.
When opcode is SIPUSH, operand value should be between Short.MIN_VALUE and Short.MAX_VALUE.
When opcode is NEWARRAY, operand value should be one of Opcodes#T_BOOLEAN, Opcodes#T_CHAR, Opcodes#T_FLOAT, Opcodes#T_DOUBLE, Opcodes#T_BYTE, Opcodes#T_SHORT, Opcodes#T_INT or Opcodes#T_LONG.
operand)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitIntInsn.

Visits an instruction with a single int operand.
public void
visitInvokeDynamicInsn(final String
the method's name.
name, final String
the method's descriptor (see Type).
descriptor, final Handle
the bootstrap method.
bootstrapMethodHandle, final Object...
the bootstrap method constant arguments. Each argument must be an Integer, Float, Long, Double, String, Type, Handle or ConstantDynamic value. This method is allowed to modify the content of the array so a caller should expect that this array may change.
bootstrapMethodArguments)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitInvokeDynamicInsn.

Visits an invokedynamic instruction.
public void
visitJumpInsn(final int
the opcode of the type instruction to be visited. This opcode is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL.
opcode, final Label
the operand of the instruction to be visited. This operand is a label that designates the instruction to which the jump instruction may jump.
label)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitJumpInsn.

Visits a jump instruction.
public void
visitLabel(final Label
a Label object.
label)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLabel.

Visits a label.
public void
visitLdcInsn(final Object
the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double, a String, a Type of OBJECT or ARRAY sort for .class constants, for classes whose version is 49, a Type of METHOD sort for MethodType, a Handle for MethodHandle constants, for classes whose version is 51 or a ConstantDynamic for a constant dynamic for classes whose version is 55.
value)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLdcInsn.

Visits a LDC instruction.
public void
visitLocalVariable(final String
the name of a local variable.
name, final String
the type descriptor of this local variable.
descriptor, final String
the type signature of this local variable. May be null if the local variable type does not use generic types.
signature, final Label
the first instruction corresponding to the scope of this local variable (inclusive).
start, final Label
the last instruction corresponding to the scope of this local variable (exclusive).
end, final int
the local variable's index.
index)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLocalVariable.

Visits a local variable declaration.
public void
visitLookupSwitchInsn(final Label
beginning of the default handler block.
dflt, final int[]
the values of the keys.
keys, final Label[]
beginnings of the handler blocks. labels[i] is the beginning of the handler block for the keys[i] key.
labels)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLookupSwitchInsn.

Visits a LOOKUPSWITCH instruction.
public void
visitMaxs(final int
maximum stack size of the method.
maxStack, final int
maximum number of local variables for the method.
maxLocals)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMaxs.

Visits the maximum stack size and the maximum number of local variables of the method.
public void
visitMethodInsn(final int
the opcode of the type instruction to be visited. This opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE.
opcodeAndSource, final String
the internal name of the method's owner class (see Type#getInternalName()).
owner, final String
the method's name.
name, final String
the method's descriptor (see Type).
descriptor, final boolean
if the method's owner class is an interface.
isInterface)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMethodInsn.

Visits a method instruction.
public void
visitMultiANewArrayInsn(final String
an array type descriptor (see Type).
descriptor, final int
the number of dimensions of the array to allocate.
numDimensions)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMultiANewArrayInsn.

Visits a MULTIANEWARRAY instruction.
public void
visitTableSwitchInsn(final int
the minimum key value.
min, final int
the maximum key value.
max, final Label
beginning of the default handler block.
dflt, final Label...
beginnings of the handler blocks. labels[i] is the beginning of the handler block for the min + i key.
labels)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTableSwitchInsn.

Visits a TABLESWITCH instruction.
public void
visitTypeInsn(final int
the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF.
opcode, final String
the operand of the instruction to be visited. This operand must be the internal name of an object or array class (see Type#getInternalName()).
type)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTypeInsn.

Visits a type instruction.
public void
visitVarInsn(final int
the opcode of the local variable instruction to be visited. This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET.
opcode, final int
the operand of the instruction to be visited. This operand is the index of a local variable.
varIndex)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitVarInsn.

Visits a local variable instruction.
Inherited from org.eclipse.persistence.internal.libraries.asm.MethodVisitor:
getDelegatevisitAnnotableParameterCountvisitAnnotationvisitAnnotationDefaultvisitAttributevisitCodevisitEndvisitInsnAnnotationvisitLineNumbervisitLocalVariableAnnotationvisitMethodInsnvisitParametervisitParameterAnnotationvisitTryCatchAnnotationvisitTryCatchBlockvisitTypeAnnotation

Field Detail

labelsback to summary
private List<Label> labels

The labels that designate the next instruction to be visited. May be null.

localsback to summary
public List<Object> locals

The local variable slots for the current execution frame. Primitive types are represented by Opcodes#TOP, Opcodes#INTEGER, Opcodes#FLOAT, Opcodes#LONG, Opcodes#DOUBLE,Opcodes#NULL or Opcodes#UNINITIALIZED_THIS (long and double are represented by two elements, the second one being TOP). Reference types are represented by String objects (representing internal names, see Type#getInternalName()), and uninitialized types by Label objects (this label designates the NEW instruction that created this uninitialized value). This field is null for unreachable instructions.

maxLocalsback to summary
private int maxLocals

The maximum number of local variables of this method.

maxStackback to summary
private int maxStack

The maximum stack size of this method.

ownerback to summary
private String owner

The owner's class name.

stackback to summary
public List<Object> stack

The operand stack slots for the current execution frame. Primitive types are represented by Opcodes#TOP, Opcodes#INTEGER, Opcodes#FLOAT, Opcodes#LONG, Opcodes#DOUBLE,Opcodes#NULL or Opcodes#UNINITIALIZED_THIS (long and double are represented by two elements, the second one being TOP). Reference types are represented by String objects (representing internal names, see Type#getInternalName()), and uninitialized types by Label objects (this label designates the NEW instruction that created this uninitialized value). This field is null for unreachable instructions.

uninitializedTypesback to summary
public Map<Object, Object> uninitializedTypes

The uninitialized types in the current execution frame. This map associates internal names to Label objects (see Type#getInternalName()). Each label designates a NEW instruction that created the currently uninitialized types, and the associated internal name represents the NEW operand, i.e. the final, initialized type value.

Constructor Detail

AnalyzerAdapterback to summary
public AnalyzerAdapter(final String owner, final int access, final String name, final String descriptor, final MethodVisitor methodVisitor)

Constructs a new AnalyzerAdapter. Subclasses must not use this constructor. Instead, they must use the AnalyzerAdapter(int, String, int, String, String, MethodVisitor) version.

Parameters
owner:String

the owner's class name.

access:int

the method's access flags (see Opcodes).

name:String

the method's name.

descriptor:String

the method's descriptor (see Type).

methodVisitor:MethodVisitor

the method visitor to which this adapter delegates calls. May be null.

Exceptions
IllegalStateException:
If a subclass calls this constructor.
AnalyzerAdapterback to summary
protected AnalyzerAdapter(final int api, final String owner, final int access, final String name, final String descriptor, final MethodVisitor methodVisitor)

Constructs a new AnalyzerAdapter.

Parameters
api:int

the ASM API version implemented by this visitor. Must be one of the ASMx values in Opcodes.

owner:String

the owner's class name.

access:int

the method's access flags (see Opcodes).

name:String

the method's name.

descriptor:String

the method's descriptor (see Type).

methodVisitor:MethodVisitor

the method visitor to which this adapter delegates calls. May be null.

Method Detail

executeback to summary
private void execute(final int opcode, final int intArg, final String stringArg)
getback to summary
private Object get(final int local)
popback to summary
private Object pop()
popback to summary
private void pop(final int numSlots)
popback to summary
private void pop(final String descriptor)
pushback to summary
private void push(final Object type)
pushDescriptorback to summary
private void pushDescriptor(final String fieldOrMethodDescriptor)
setback to summary
private void set(final int local, final Object type)
visitFieldInsnback to summary
public void visitFieldInsn(final int opcode, final String owner, final String name, final String descriptor)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitFieldInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitFieldInsn.

Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object.

Parameters
opcode:int

the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.

owner:String

the internal name of the field's owner class (see Type#getInternalName()).

name:String

the field's name.

descriptor:String

the field's descriptor (see Type).

Annotations
@Override
visitFrameback to summary
public void visitFrame(final int type, final int numLocal, final Object[] local, final int numStack, final Object[] stack)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitFrame.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitFrame.

Visits the current state of the local variables and operand stack elements. This method must(*) be called just before any instruction i that follows an unconditional branch instruction such as GOTO or THROW, that is the target of a jump instruction, or that starts an exception handler block. The visited types must describe the values of the local variables and of the operand stack elements just before i is executed.

(*) this is mandatory only for classes whose version is greater than or equal to Opcodes#V1_6.

The frames of a method must be given either in expanded form, or in compressed form (all frames must use the same format, i.e. you must not mix expanded and compressed frames within a single method):

  • In expanded form, all frames must have the F_NEW type.
  • In compressed form, frames are basically "deltas" from the state of the previous frame:
    • Opcodes#F_SAME representing frame with exactly the same locals as the previous frame and with the empty stack.
    • Opcodes#F_SAME1 representing frame with exactly the same locals as the previous frame and with single value on the stack ( numStack is 1 and stack[0] contains value for the type of the stack item).
    • Opcodes#F_APPEND representing frame with current locals are the same as the locals in the previous frame, except that additional locals are defined ( numLocal is 1, 2 or 3 and local elements contains values representing added types).
    • Opcodes#F_CHOP representing frame with current locals are the same as the locals in the previous frame, except that the last 1-3 locals are absent and with the empty stack (numLocal is 1, 2 or 3).
    • Opcodes#F_FULL representing complete frame data.

In both cases the first frame, corresponding to the method's parameters and access flags, is implicit and must not be visited. Also, it is illegal to visit two or more frames for the same code location (i.e., at least one instruction must be visited between two calls to visitFrame).
Parameters
type:int

the type of this stack map frame. Must be Opcodes#F_NEW for expanded frames, or Opcodes#F_FULL, Opcodes#F_APPEND, Opcodes#F_CHOP, Opcodes#F_SAME or Opcodes#F_APPEND, Opcodes#F_SAME1 for compressed frames.

numLocal:int

the number of local variables in the visited frame. Long and double values count for one variable.

local:Object[]

the local variable types in this frame. This array must not be modified. Primitive types are represented by Opcodes#TOP, Opcodes#INTEGER, Opcodes#FLOAT, Opcodes#LONG, Opcodes#DOUBLE, Opcodes#NULL or Opcodes#UNINITIALIZED_THIS (long and double are represented by a single element). Reference types are represented by String objects (representing internal names, see Type#getInternalName()), and uninitialized types by Label objects (this label designates the NEW instruction that created this uninitialized value).

numStack:int

the number of operand stack elements in the visited frame. Long and double values count for one stack element.

stack:Object[]

the operand stack types in this frame. This array must not be modified. Its content has the same format as the "local" array.

Annotations
@Override
visitFrameTypesback to summary
private static void visitFrameTypes(final int numTypes, final Object[] frameTypes, final List<Object> result)
visitIincInsnback to summary
public void visitIincInsn(final int varIndex, final int increment)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitIincInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitIincInsn.

Visits an IINC instruction.

Parameters
varIndex:int

index of the local variable to be incremented.

increment:int

amount to increment the local variable by.

Annotations
@Override
visitInsnback to summary
public void visitInsn(final int opcode)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitInsn.

Visits a zero operand instruction.

Parameters
opcode:int

the opcode of the instruction to be visited. This opcode is either NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER, or MONITOREXIT.

Annotations
@Override
visitIntInsnback to summary
public void visitIntInsn(final int opcode, final int operand)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitIntInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitIntInsn.

Visits an instruction with a single int operand.

Parameters
opcode:int

the opcode of the instruction to be visited. This opcode is either BIPUSH, SIPUSH or NEWARRAY.

operand:int

the operand of the instruction to be visited.
When opcode is BIPUSH, operand value should be between Byte.MIN_VALUE and Byte.MAX_VALUE.
When opcode is SIPUSH, operand value should be between Short.MIN_VALUE and Short.MAX_VALUE.
When opcode is NEWARRAY, operand value should be one of Opcodes#T_BOOLEAN, Opcodes#T_CHAR, Opcodes#T_FLOAT, Opcodes#T_DOUBLE, Opcodes#T_BYTE, Opcodes#T_SHORT, Opcodes#T_INT or Opcodes#T_LONG.

Annotations
@Override
visitInvokeDynamicInsnback to summary
public void visitInvokeDynamicInsn(final String name, final String descriptor, final Handle bootstrapMethodHandle, final Object... bootstrapMethodArguments)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitInvokeDynamicInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitInvokeDynamicInsn.

Visits an invokedynamic instruction.

Parameters
name:String

the method's name.

descriptor:String

the method's descriptor (see Type).

bootstrapMethodHandle:Handle

the bootstrap method.

bootstrapMethodArguments:Object[]

the bootstrap method constant arguments. Each argument must be an Integer, Float, Long, Double, String, Type, Handle or ConstantDynamic value. This method is allowed to modify the content of the array so a caller should expect that this array may change.

Annotations
@Override
visitJumpInsnback to summary
public void visitJumpInsn(final int opcode, final Label label)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitJumpInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitJumpInsn.

Visits a jump instruction. A jump instruction is an instruction that may jump to another instruction.

Parameters
opcode:int

the opcode of the type instruction to be visited. This opcode is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL.

label:Label

the operand of the instruction to be visited. This operand is a label that designates the instruction to which the jump instruction may jump.

Annotations
@Override
visitLabelback to summary
public void visitLabel(final Label label)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLabel.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLabel.

Visits a label. A label designates the instruction that will be visited just after it.

Parameters
label:Label

a Label object.

Annotations
@Override
visitLdcInsnback to summary
public void visitLdcInsn(final Object value)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLdcInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLdcInsn.

Visits a LDC instruction. Note that new constant types may be added in future versions of the Java Virtual Machine. To easily detect new constant types, implementations of this method should check for unexpected constant types, like this: 

if (cst instanceof Integer) {
    // ...
} else if (cst instanceof Float) {
    // ...
} else if (cst instanceof Long) {
    // ...
} else if (cst instanceof Double) {
    // ...
} else if (cst instanceof String) {
    // ...
} else if (cst instanceof Type) {
    int sort = ((Type) cst).getSort();
    if (sort == Type.OBJECT) {
        // ...
    } else if (sort == Type.ARRAY) {
        // ...
    } else if (sort == Type.METHOD) {
        // ...
    } else {
        // throw an exception
    }
} else if (cst instanceof Handle) {
    // ...
} else if (cst instanceof ConstantDynamic) {
    // ...
} else {
    // throw an exception
}
Parameters
value:Object

the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double, a String, a Type of OBJECT or ARRAY sort for .class constants, for classes whose version is 49, a Type of METHOD sort for MethodType, a Handle for MethodHandle constants, for classes whose version is 51 or a ConstantDynamic for a constant dynamic for classes whose version is 55.

Annotations
@Override
visitLocalVariableback to summary
public void visitLocalVariable(final String name, final String descriptor, final String signature, final Label start, final Label end, final int index)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLocalVariable.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLocalVariable.

Visits a local variable declaration.

Parameters
name:String

the name of a local variable.

descriptor:String

the type descriptor of this local variable.

signature:String

the type signature of this local variable. May be null if the local variable type does not use generic types.

start:Label

the first instruction corresponding to the scope of this local variable (inclusive).

end:Label

the last instruction corresponding to the scope of this local variable (exclusive).

index:int

the local variable's index.

Annotations
@Override
visitLookupSwitchInsnback to summary
public void visitLookupSwitchInsn(final Label dflt, final int[] keys, final Label[] labels)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLookupSwitchInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitLookupSwitchInsn.

Visits a LOOKUPSWITCH instruction.

Parameters
dflt:Label

beginning of the default handler block.

keys:int[]

the values of the keys.

labels:Label[]

beginnings of the handler blocks. labels[i] is the beginning of the handler block for the keys[i] key.

Annotations
@Override
visitMaxsback to summary
public void visitMaxs(final int maxStack, final int maxLocals)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMaxs.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMaxs.

Visits the maximum stack size and the maximum number of local variables of the method.

Parameters
maxStack:int

maximum stack size of the method.

maxLocals:int

maximum number of local variables for the method.

Annotations
@Override
visitMethodInsnback to summary
public void visitMethodInsn(final int opcodeAndSource, final String owner, final String name, final String descriptor, final boolean isInterface)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMethodInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMethodInsn.

Visits a method instruction. A method instruction is an instruction that invokes a method.

Parameters
opcodeAndSource:int

the opcode of the type instruction to be visited. This opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE.

owner:String

the internal name of the method's owner class (see Type#getInternalName()).

name:String

the method's name.

descriptor:String

the method's descriptor (see Type).

isInterface:boolean

if the method's owner class is an interface.

Annotations
@Override
visitMultiANewArrayInsnback to summary
public void visitMultiANewArrayInsn(final String descriptor, final int numDimensions)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMultiANewArrayInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMultiANewArrayInsn.

Visits a MULTIANEWARRAY instruction.

Parameters
descriptor:String

an array type descriptor (see Type).

numDimensions:int

the number of dimensions of the array to allocate.

Annotations
@Override
visitTableSwitchInsnback to summary
public void visitTableSwitchInsn(final int min, final int max, final Label dflt, final Label... labels)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTableSwitchInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTableSwitchInsn.

Visits a TABLESWITCH instruction.

Parameters
min:int

the minimum key value.

max:int

the maximum key value.

dflt:Label

beginning of the default handler block.

labels:Label[]

beginnings of the handler blocks. labels[i] is the beginning of the handler block for the min + i key.

Annotations
@Override
visitTypeInsnback to summary
public void visitTypeInsn(final int opcode, final String type)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTypeInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTypeInsn.

Visits a type instruction. A type instruction is an instruction that takes the internal name of a class as parameter (see Type#getInternalName()).

Parameters
opcode:int

the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF.

type:String

the operand of the instruction to be visited. This operand must be the internal name of an object or array class (see Type#getInternalName()).

Annotations
@Override
visitVarInsnback to summary
public void visitVarInsn(final int opcode, final int varIndex)

Overrides org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitVarInsn.

Doc from org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitVarInsn.

Visits a local variable instruction. A local variable instruction is an instruction that loads or stores the value of a local variable.

Parameters
opcode:int

the opcode of the local variable instruction to be visited. This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET.

varIndex:int

the operand of the instruction to be visited. This operand is the index of a local variable.

Annotations
@Override