BranchInstruction (ProGuardCORE)

java.lang.Object
- proguard.classfile.instruction.Instruction
- - proguard.classfile.instruction.BranchInstruction

```
public class BranchInstruction
extends Instruction
```
This interface describes an instruction that branches to a given offset in the code.

Field Summary

Fields
Modifier and Type Field and Description

int branchOffset
- Fields inherited from class proguard.classfile.instruction.Instruction
  ARRAY_T_BOOLEAN, ARRAY_T_BYTE, ARRAY_T_CHAR, ARRAY_T_DOUBLE, ARRAY_T_FLOAT, ARRAY_T_INT, ARRAY_T_LONG, ARRAY_T_SHORT, NAMES, OP_AALOAD, OP_AASTORE, OP_ACONST_NULL, OP_ALOAD, OP_ALOAD_0, OP_ALOAD_1, OP_ALOAD_2, OP_ALOAD_3, OP_ANEWARRAY, OP_ARETURN, OP_ARRAYLENGTH, OP_ASTORE, OP_ASTORE_0, OP_ASTORE_1, OP_ASTORE_2, OP_ASTORE_3, OP_ATHROW, OP_BALOAD, OP_BASTORE, OP_BIPUSH, OP_CALOAD, OP_CASTORE, OP_CHECKCAST, OP_D2F, OP_D2I, OP_D2L, OP_DADD, OP_DALOAD, OP_DASTORE, OP_DCMPG, OP_DCMPL, OP_DCONST_0, OP_DCONST_1, OP_DDIV, OP_DLOAD, OP_DLOAD_0, OP_DLOAD_1, OP_DLOAD_2, OP_DLOAD_3, OP_DMUL, OP_DNEG, OP_DREM, OP_DRETURN, OP_DSTORE, OP_DSTORE_0, OP_DSTORE_1, OP_DSTORE_2, OP_DSTORE_3, OP_DSUB, OP_DUP, OP_DUP_X1, OP_DUP_X2, OP_DUP2, OP_DUP2_X1, OP_DUP2_X2, OP_F2D, OP_F2I, OP_F2L, OP_FADD, OP_FALOAD, OP_FASTORE, OP_FCMPG, OP_FCMPL, OP_FCONST_0, OP_FCONST_1, OP_FCONST_2, OP_FDIV, OP_FLOAD, OP_FLOAD_0, OP_FLOAD_1, OP_FLOAD_2, OP_FLOAD_3, OP_FMUL, OP_FNEG, OP_FREM, OP_FRETURN, OP_FSTORE, OP_FSTORE_0, OP_FSTORE_1, OP_FSTORE_2, OP_FSTORE_3, OP_FSUB, OP_GETFIELD, OP_GETSTATIC, OP_GOTO, OP_GOTO_W, OP_I2B, OP_I2C, OP_I2D, OP_I2F, OP_I2L, OP_I2S, OP_IADD, OP_IALOAD, OP_IAND, OP_IASTORE, OP_ICONST_0, OP_ICONST_1, OP_ICONST_2, OP_ICONST_3, OP_ICONST_4, OP_ICONST_5, OP_ICONST_M1, OP_IDIV, OP_IFACMPEQ, OP_IFACMPNE, OP_IFEQ, OP_IFGE, OP_IFGT, OP_IFICMPEQ, OP_IFICMPGE, OP_IFICMPGT, OP_IFICMPLE, OP_IFICMPLT, OP_IFICMPNE, OP_IFLE, OP_IFLT, OP_IFNE, OP_IFNONNULL, OP_IFNULL, OP_IINC, OP_ILOAD, OP_ILOAD_0, OP_ILOAD_1, OP_ILOAD_2, OP_ILOAD_3, OP_IMUL, OP_INEG, OP_INSTANCEOF, OP_INVOKEDYNAMIC, OP_INVOKEINTERFACE, OP_INVOKESPECIAL, OP_INVOKESTATIC, OP_INVOKEVIRTUAL, OP_IOR, OP_IREM, OP_IRETURN, OP_ISHL, OP_ISHR, OP_ISTORE, OP_ISTORE_0, OP_ISTORE_1, OP_ISTORE_2, OP_ISTORE_3, OP_ISUB, OP_IUSHR, OP_IXOR, OP_JSR, OP_JSR_W, OP_L2D, OP_L2F, OP_L2I, OP_LADD, OP_LALOAD, OP_LAND, OP_LASTORE, OP_LCMP, OP_LCONST_0, OP_LCONST_1, OP_LDC, OP_LDC_W, OP_LDC2_W, OP_LDIV, OP_LLOAD, OP_LLOAD_0, OP_LLOAD_1, OP_LLOAD_2, OP_LLOAD_3, OP_LMUL, OP_LNEG, OP_LOOKUPSWITCH, OP_LOR, OP_LREM, OP_LRETURN, OP_LSHL, OP_LSHR, OP_LSTORE, OP_LSTORE_0, OP_LSTORE_1, OP_LSTORE_2, OP_LSTORE_3, OP_LSUB, OP_LUSHR, OP_LXOR, OP_MONITORENTER, OP_MONITOREXIT, OP_MULTIANEWARRAY, OP_NEW, OP_NEWARRAY, OP_NOP, OP_POP, OP_POP2, OP_PUTFIELD, OP_PUTSTATIC, OP_RET, OP_RETURN, OP_SALOAD, OP_SASTORE, OP_SIPUSH, OP_SWAP, OP_TABLESWITCH, OP_WIDE, opcode

Fields
Modifier and Type	Field and Description
`int`	`branchOffset`

Constructor Summary

Constructors
Constructor and Description
`BranchInstruction()` Creates an uninitialized BranchInstruction.
`BranchInstruction(byte opcode, int branchOffset)` Creates a BranchInstruction with the given branch offset.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`accept(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, InstructionVisitor instructionVisitor)` Accepts the given visitor.
`byte`	`canonicalOpcode()` Returns the canonical opcode of this instruction, i.e.
`BranchInstruction`	`copy(BranchInstruction branchInstruction)` Copies the given instruction into this instruction.
`boolean`	`equals(java.lang.Object o)`
`int`	`hashCode()`
`int`	`length(int offset)` Returns the length in bytes of the instruction.
`protected void`	`readInfo(byte[] code, int offset)` Reads the data following the instruction opcode.
`Instruction`	`shrink()` Shrinks this instruction to its shortest possible form.
`java.lang.String`	`toString()`
`java.lang.String`	`toString(int offset)` Returns a description of the instruction, at the given offset.
`protected void`	`writeInfo(byte[] code, int offset)` Writes data following the instruction opcode.

Methods inherited from class proguard.classfile.instruction.Instruction
actualOpcode, getName, isCategory2, isWide, mayInstanceThrowExceptions, mayThrowExceptions, readByte, readInt, readShort, readSignedByte, readSignedShort, readSignedValue, readValue, stackEntryIndexBefore, stackPopCount, stackPushCount, toString, write, write, writeByte, writeInt, writeShort, writeSignedByte, writeSignedShort, writeSignedValue, writeValue

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - branchOffset
```
public int branchOffset
```
- Constructor Detail
  - BranchInstruction
```
public BranchInstruction()
```
    Creates an uninitialized BranchInstruction.
  - BranchInstruction
```
public BranchInstruction(byte opcode,
                         int branchOffset)
```
    Creates a BranchInstruction with the given branch offset. The branch offset is relative to this instruction's offset.
- Method Detail
  - copy
```
public BranchInstruction copy(BranchInstruction branchInstruction)
```
    Copies the given instruction into this instruction.
    
    Parameters:
    
    branchInstruction - the instruction to be copied.
    
    Returns:
    
    this instruction.
  - canonicalOpcode
```
public byte canonicalOpcode()
```
    Description copied from class: Instruction
    
    Returns the canonical opcode of this instruction, i.e. typically the opcode whose extension has been removed.
    
    Overrides:
    
    canonicalOpcode in class Instruction
  - shrink
```
public Instruction shrink()
```
    Description copied from class: Instruction
    
    Shrinks this instruction to its shortest possible form.
    
    Specified by:
    
    shrink in class Instruction
    
    Returns:
    
    this instruction.
  - readInfo
```
protected void readInfo(byte[] code,
                        int offset)
```
    Description copied from class: Instruction
    
    Reads the data following the instruction opcode.
    
    Specified by:
    
    readInfo in class Instruction
  - writeInfo
```
protected void writeInfo(byte[] code,
                         int offset)
```
    Description copied from class: Instruction
    
    Writes data following the instruction opcode.
    
    Specified by:
    
    writeInfo in class Instruction
  - length
```
public int length(int offset)
```
    Description copied from class: Instruction
    
    Returns the length in bytes of the instruction.
    
    Specified by:
    
    length in class Instruction
  - accept
```
public void accept(Clazz clazz,
                   Method method,
                   CodeAttribute codeAttribute,
                   int offset,
                   InstructionVisitor instructionVisitor)
```
    Description copied from class: Instruction
    
    Accepts the given visitor.
    
    Specified by:
    
    accept in class Instruction
  - toString
```
public java.lang.String toString(int offset)
```
    Description copied from class: Instruction
    
    Returns a description of the instruction, at the given offset.
    
    Overrides:
    
    toString in class Instruction
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object o)
```
    Specified by:
    
    equals in class Instruction
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in class Instruction

Class BranchInstruction

Field Summary

Fields inherited from class proguard.classfile.instruction.Instruction

Constructor Summary

Method Summary

Methods inherited from class proguard.classfile.instruction.Instruction

Methods inherited from class java.lang.Object

Field Detail

branchOffset

Constructor Detail

BranchInstruction

BranchInstruction

Method Detail

copy

canonicalOpcode

shrink

readInfo

writeInfo

length

accept

toString

toString

equals

hashCode