public Class AnalyzerAdapter

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.

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.

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.

Overrides org.objectweb.asm.MethodVisitor.visitFieldInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitFrame.

Doc from org.objectweb.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.

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

Overrides org.objectweb.asm.MethodVisitor.visitIincInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitIntInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitInvokeDynamicInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitJumpInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitLabel.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitLdcInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitLocalVariable.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitLookupSwitchInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitMaxs.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitMethodInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitMultiANewArrayInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitTableSwitchInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitTypeInsn.

Doc from org.objectweb.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

Overrides org.objectweb.asm.MethodVisitor.visitVarInsn.

Doc from org.objectweb.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