BinaryOpInstruction (com.ibm.wala.shrike 1.5.7 API)

java.lang.Object
- com.ibm.wala.shrikeBT.Instruction
- - com.ibm.wala.shrikeBT.BinaryOpInstruction

All Implemented Interfaces:

Constants, IBinaryOpInstruction, IInstruction, java.lang.Cloneable
```
public final class BinaryOpInstruction
extends Instruction
implements IBinaryOpInstruction
```
This class represents binary operator instructions for which the operands and the result all have the same type.

Nested Class Summary
- Nested classes/interfaces inherited from interface com.ibm.wala.shrikeBT.IBinaryOpInstruction
  IBinaryOpInstruction.IOperator, IBinaryOpInstruction.Operator
- Nested classes/interfaces inherited from interface com.ibm.wala.shrikeBT.IInstruction
  IInstruction.Visitor

Field Summary
- Fields inherited from class com.ibm.wala.shrikeBT.Instruction
  noInstructions
- Fields inherited from interface com.ibm.wala.shrikeBT.Constants
  ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VOLATILE, CONSTANT_Class, CONSTANT_Double, CONSTANT_FieldRef, CONSTANT_Float, CONSTANT_Integer, CONSTANT_InterfaceMethodRef, CONSTANT_InvokeDynamic, CONSTANT_Long, CONSTANT_MethodHandle, CONSTANT_MethodRef, CONSTANT_MethodType, CONSTANT_NameAndType, CONSTANT_String, CONSTANT_Utf8, indexedTypes, indexedTypes_T, MAYBE, NO, 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_if_acmpeq, OP_if_acmpne, OP_if_icmpeq, OP_if_icmpge, OP_if_icmpgt, OP_if_icmple, OP_if_icmplt, OP_if_icmpne, OP_ifeq, OP_ifge, OP_ifgt, 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, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TYPE_boolean, TYPE_boolean_index, TYPE_byte, TYPE_byte_index, TYPE_char, TYPE_char_index, TYPE_Class, TYPE_double, TYPE_double_index, TYPE_Error, TYPE_Exception, TYPE_float, TYPE_float_index, TYPE_int, TYPE_int_index, TYPE_long, TYPE_long_index, TYPE_MethodHandle, TYPE_MethodType, TYPE_null, TYPE_Object, TYPE_Object_index, TYPE_RuntimeException, TYPE_short, TYPE_short_index, TYPE_String, TYPE_Throwable, TYPE_unknown, TYPE_void, YES

Constructor Summary

Constructors
Modifier Constructor and Description

protected BinaryOpInstruction(short opcode)

Constructors
Modifier	Constructor and Description
`protected`	`BinaryOpInstruction(short opcode)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`equals(java.lang.Object o)`
`IBinaryOpInstruction.Operator`	`getOperator()`
`int`	`getPoppedCount()`
`java.lang.String`	`getPushedType(java.lang.String[] types)` Computes the type of data pushed onto the stack, or null if none is pushed.
`byte`	`getPushedWordSize()`
`java.lang.String`	`getType()`
`int`	`hashCode()`
`boolean`	`isPEI()` PEI == "Potentially excepting instruction"
`boolean`	`isUnsigned()`
`static BinaryOpInstruction`	`make(java.lang.String type, IBinaryOpInstruction.Operator operator)`
`boolean`	`throwsExceptionOnOverflow()`
`java.lang.String`	`toString()` Subclasses must implement toString.
`void`	`visit(IInstruction.Visitor v)` Apply a Visitor to this instruction.

Methods inherited from class com.ibm.wala.shrikeBT.Instruction
clone, getBranchTargets, getOpcode, isFallThrough, redirectTargets

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

Methods inherited from interface com.ibm.wala.shrikeBT.IInstruction
getBranchTargets, isFallThrough, redirectTargets

- Constructor Detail
  - BinaryOpInstruction
```
protected BinaryOpInstruction(short opcode)
```
- Method Detail
  - make
```
public static BinaryOpInstruction make(java.lang.String type,
                                       IBinaryOpInstruction.Operator operator)
                                throws java.lang.IllegalArgumentException
```
    Throws:
    
    java.lang.IllegalArgumentException
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - getOperator
```
public IBinaryOpInstruction.Operator getOperator()
```
    Specified by:
    
    getOperator in interface IBinaryOpInstruction
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - getPoppedCount
```
public int getPoppedCount()
```
    Specified by:
    
    getPoppedCount in interface IInstruction
    
    Overrides:
    
    getPoppedCount in class Instruction
    
    Returns:
    
    the number of values this instruction pops off the working stack
  - getPushedType
```
public java.lang.String getPushedType(java.lang.String[] types)
```
    Description copied from class: Instruction
    
    Computes the type of data pushed onto the stack, or null if none is pushed.
    
    Specified by:
    
    getPushedType in interface IInstruction
    
    Overrides:
    
    getPushedType in class Instruction
    
    Parameters:
    
    types - the types of the data popped off the stack by this instruction; if poppedTypes is null, then we don't know the incoming stack types and the result of this method may be less accurate
  - getPushedWordSize
```
public byte getPushedWordSize()
```
    Specified by:
    
    getPushedWordSize in interface IInstruction
    
    Overrides:
    
    getPushedWordSize in class Instruction
    
    Returns:
    
    the JVM word size of the value this instruction pushes onto the stack, or 0 if this instruction doesn't push anything onto the stack.
  - getType
```
public java.lang.String getType()
```
    Specified by:
    
    getType in interface IBinaryOpInstruction
  - visit
```
public void visit(IInstruction.Visitor v)
           throws java.lang.NullPointerException
```
    Description copied from class: Instruction
    
    Apply a Visitor to this instruction. We invoke the appropriate Visitor method according to the type of this instruction.
    
    Specified by:
    
    visit in interface IInstruction
    
    Specified by:
    
    visit in class Instruction
    
    Throws:
    
    java.lang.NullPointerException
  - toString
```
public java.lang.String toString()
```
    Description copied from class: Instruction
    
    Subclasses must implement toString.
    
    Specified by:
    
    toString in interface IInstruction
    
    Specified by:
    
    toString in class Instruction
  - isPEI
```
public boolean isPEI()
```
    Description copied from interface: IInstruction
    
    PEI == "Potentially excepting instruction"
    
    Specified by:
    
    isPEI in interface IInstruction
    
    Returns:
    
    true iff this instruction might throw an exception
  - throwsExceptionOnOverflow
```
public boolean throwsExceptionOnOverflow()
```
    Specified by:
    
    throwsExceptionOnOverflow in interface IBinaryOpInstruction
  - isUnsigned
```
public boolean isUnsigned()
```
    Specified by:
    
    isUnsigned in interface IBinaryOpInstruction

Class BinaryOpInstruction

Nested Class Summary

Nested classes/interfaces inherited from interface com.ibm.wala.shrikeBT.IBinaryOpInstruction

Nested classes/interfaces inherited from interface com.ibm.wala.shrikeBT.IInstruction

Field Summary

Fields inherited from class com.ibm.wala.shrikeBT.Instruction

Fields inherited from interface com.ibm.wala.shrikeBT.Constants

Constructor Summary

Method Summary

Methods inherited from class com.ibm.wala.shrikeBT.Instruction

Methods inherited from class java.lang.Object

Methods inherited from interface com.ibm.wala.shrikeBT.IInstruction

Constructor Detail

BinaryOpInstruction

Method Detail

make

equals

getOperator

hashCode

getPoppedCount

getPushedType

getPushedWordSize

getType

visit

toString

isPEI

throwsExceptionOnOverflow

isUnsigned