org.objectweb.asm
public interface MethodVisitor
Method Summary | |
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AnnotationVisitor | visitAnnotation(String desc, boolean visible)
Visits an annotation of this method.
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AnnotationVisitor | visitAnnotationDefault()
Visits the default value of this annotation interface method.
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void | visitAttribute(Attribute attr)
Visits a non standard attribute of this method.
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void | visitCode()
Starts the visit of the method's code, if any (i.e. non abstract method). |
void | visitEnd()
Visits the end of the method. |
void | visitFieldInsn(int opcode, String owner, String name, String desc)
Visits a field instruction. |
void | visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack)
Visits the current state of the local variables and operand stack
elements. |
void | visitIincInsn(int var, int increment)
Visits an IINC instruction.
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void | visitInsn(int opcode)
Visits a zero operand instruction.
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void | visitIntInsn(int opcode, int operand)
Visits an instruction with a single int operand.
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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.
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void | visitLineNumber(int line, Label start)
Visits a line number declaration.
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void | visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index)
Visits a local variable declaration.
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void | visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels)
Visits a LOOKUPSWITCH instruction.
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void | visitMaxs(int maxStack, int maxLocals)
Visits the maximum stack size and the maximum number of local variables
of the method.
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void | visitMethodInsn(int opcode, String owner, String name, String desc)
Visits a method instruction. |
void | visitMultiANewArrayInsn(String desc, int dims)
Visits a MULTIANEWARRAY instruction.
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AnnotationVisitor | visitParameterAnnotation(int parameter, String desc, boolean visible)
Visits an annotation of a parameter this method.
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void | visitTableSwitchInsn(int min, int max, Label dflt, Label[] labels)
Visits a TABLESWITCH instruction.
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void | visitTryCatchBlock(Label start, Label end, Label handler, String type)
Visits a try catch block.
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void | visitTypeInsn(int opcode, String type)
Visits a type instruction. |
void | visitVarInsn(int opcode, int var)
Visits a local variable instruction. |
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, or null if this visitor is not interested in visiting this annotation.
Returns: a visitor to the visit the actual default value of this annotation interface method, or null if this visitor is not interested in visiting this default value. The 'name' parameters passed to the methods of this annotation visitor are ignored. Moreover, exacly one visit method must be called on this annotation visitor, followed by visitEnd.
Parameters: attr an attribute.
Parameters: opcode the opcode of the type instruction to be visited. This
opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. owner the internal name of the field's owner class (see getInternalName
). name the field's name. desc the field's descriptor (see Type
).
V1_6
. nStack
is 1 and
stack[0]
contains value for the type of the stack item).nLocal
is 1, 2 or 3 and
local
elements contains values representing added types).nLocals
is 1,
2 or 3). Parameters: type the type of this stack map frame. Must be F_NEW for expanded frames, or F_FULL, F_APPEND, F_CHOP, F_SAME or F_APPEND, F_SAME1 for compressed frames. nLocal the number of local variables in the visited frame. local the local variable types in this frame. This array must not be modified. Primitive types are represented by TOP, INTEGER, FLOAT, LONG, DOUBLE,NULL or UNINITIALIZED_THIS (long and double are represented by a single element). Reference types are represented by String objects (representing internal names), and uninitialized types by Label objects (this label designates the NEW instruction that created this uninitialized value). nStack the number of operand stack elements in the visited frame. stack the operand stack types in this frame. This array must not be modified. Its content has the same format as the "local" array.
Parameters: var index of the local variable to be incremented. increment amount to increment the local variable by.
Parameters: opcode 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.
Parameters: opcode the opcode of the instruction to be visited. This opcode is
either BIPUSH, SIPUSH or NEWARRAY. operand 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
T_BOOLEAN, T_CHAR,
T_FLOAT, T_DOUBLE,
T_BYTE, T_SHORT,
T_INT or T_LONG.
Parameters: opcode 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 the operand of the instruction to be visited. This operand is a label that designates the instruction to which the jump instruction may jump.
Parameters: label a Label
object.
Parameters: cst the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double a String (or a Type for .class constants, for classes whose version is 49.0 or more).
Parameters: line a line number. This number refers to the source file from which the class was compiled. start the first instruction corresponding to this line number.
Throws: IllegalArgumentException if start has not already been
visited by this visitor (by the visitLabel
method).
Parameters: name the name of a local variable. desc the type descriptor of this local variable. signature the type signature of this local variable. May be null if the local variable type does not use generic types. start the first instruction corresponding to the scope of this local variable (inclusive). end the last instruction corresponding to the scope of this local variable (exclusive). index the local variable's index.
Throws: IllegalArgumentException if one of the labels has not already
been visited by this visitor (by the
visitLabel
method).
Parameters: dflt beginning of the default handler block. keys the values of the keys. labels beginnings of the handler blocks. labels[i] is the beginning of the handler block for the keys[i] key.
Parameters: maxStack maximum stack size of the method. maxLocals maximum number of local variables for the method.
Parameters: opcode the opcode of the type instruction to be visited. This
opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC,
INVOKEINTERFACE or INVOKEDYNAMIC. owner the internal name of the method's owner class (see getInternalName
)
or INVOKEDYNAMIC_OWNER. name the method's name. desc the method's descriptor (see Type
).
Parameters: desc an array type descriptor (see Type
). dims number of dimensions of the array to allocate.
Parameters: parameter the parameter index. 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, or null if this visitor is not interested in visiting this annotation.
Parameters: min the minimum key value. max the maximum key value. dflt beginning of the default handler block. labels beginnings of the handler blocks. labels[i] is the beginning of the handler block for the min + i key.
Parameters: start beginning of the exception handler's scope (inclusive). end end of the exception handler's scope (exclusive). handler beginning of the exception handler's code. type internal name of the type of exceptions handled by the handler, or null to catch any exceptions (for "finally" blocks).
Throws: IllegalArgumentException if one of the labels has already been
visited by this visitor (by the visitLabel
method).
Parameters: opcode the opcode of the type instruction to be visited. This
opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF. type the operand of the instruction to be visited. This operand
must be the internal name of an object or array class (see getInternalName
).
Parameters: opcode 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. var the operand of the instruction to be visited. This operand is the index of a local variable.