ILOCOperand (decaf 1.0-SNAPSHOT API)

java.lang.Object
- edu.jmu.decaf.ILOCOperand

All Implemented Interfaces:

Cloneable
```
public class ILOCOperand
extends Object
implements Cloneable
```
Single ILOC instruction operand: a register (named or virtual), a jump/call label, an integer constant, or a string constant. The constructor for this function is private, meaning that you should never create ILOCOperand objects yourself; rather, you could call one of the factory methods ("newX()").

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class ILOCOperand.Type

Nested Classes
Modifier and Type	Class and Description
`static class`	`ILOCOperand.Type`

Field Summary

Fields
Modifier and Type	Field and Description
`int`	`id` Unique ID (for virtual register and jump label operands)
`int`	`intConstant` Integer constant (for int constant operands)
`static ILOCOperand`	`INVALID` Invalid operand tag
`static ILOCOperand`	`REG_BP` Base pointer register (ebp/rbp on x86)
`static ILOCOperand`	`REG_RET` Function return value register (eax/rax on x86)
`static ILOCOperand`	`REG_SP` Base pointer register (ebp/rbp on x86)
`String`	`strConstant` String constant (for call label and string constant operands)
`ILOCOperand.Type`	`type` Operand type
`static ILOCOperand`	`ZERO` Special constant (zero)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Object`	`clone()` Creates a copy of this `ILOCOperand` object.
`boolean`	`equals(Object o)` Ensure that two operands are considered "equal" if their string-based representations are identical.
`int`	`hashCode()` Ensure that operands can be stored in hash sets and maps properly.
`static ILOCOperand`	`newAnonymousLabel()` Allocate and return a new anonymous jump label
`static ILOCOperand`	`newCallLabel(String name)` Return an operand for the given call target
`static ILOCOperand`	`newIntConstant(int value)` Return an operand for the given integer literal
`static ILOCOperand`	`newStrConstant(String value)` Return an operand for the given string literal
`static ILOCOperand`	`newVirtualReg()` Allocate and return a new virtual register reference
`String`	`toString()` Builds a string representing the operand

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

- Field Detail
  - type
```
public ILOCOperand.Type type
```
    Operand type
  - id
```
public int id
```
    Unique ID (for virtual register and jump label operands)
  - strConstant
```
public String strConstant
```
    String constant (for call label and string constant operands)
  - intConstant
```
public int intConstant
```
    Integer constant (for int constant operands)
  - REG_SP
```
public static final ILOCOperand REG_SP
```
    Base pointer register (ebp/rbp on x86)
  - REG_BP
```
public static final ILOCOperand REG_BP
```
    Base pointer register (ebp/rbp on x86)
  - REG_RET
```
public static final ILOCOperand REG_RET
```
    Function return value register (eax/rax on x86)
  - ZERO
```
public static final ILOCOperand ZERO
```
    Special constant (zero)
  - INVALID
```
public static final ILOCOperand INVALID
```
    Invalid operand tag
- Method Detail
  - newVirtualReg
```
public static ILOCOperand newVirtualReg()
```
    Allocate and return a new virtual register reference
    
    Returns:
    
    Register operand
  - newAnonymousLabel
```
public static ILOCOperand newAnonymousLabel()
```
    Allocate and return a new anonymous jump label
    
    Returns:
    
    Jump label operand
  - newCallLabel
```
public static ILOCOperand newCallLabel(String name)
```
    Return an operand for the given call target
    
    Parameters:
    
    name - Target function name
    
    Returns:
    
    Call label operand
  - newIntConstant
```
public static ILOCOperand newIntConstant(int value)
```
    Return an operand for the given integer literal
    
    Parameters:
    
    value - Integer literal
    
    Returns:
    
    Integer literal operand
  - newStrConstant
```
public static ILOCOperand newStrConstant(String value)
```
    Return an operand for the given string literal
    
    Parameters:
    
    value - String literal
    
    Returns:
    
    String literal operand
  - clone
```
public Object clone()
             throws CloneNotSupportedException
```
    Creates a copy of this ILOCOperand object.
    
    Overrides:
    
    clone in class Object
    
    Throws:
    
    CloneNotSupportedException
  - equals
```
public boolean equals(Object o)
```
    Ensure that two operands are considered "equal" if their string-based representations are identical. WARNING: This is wildly inefficient!
    
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Ensure that operands can be stored in hash sets and maps properly. WARNING: This is wildly inefficient!
    
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Builds a string representing the operand
    
    Overrides:
    
    toString in class Object

Class ILOCOperand

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

type

id

strConstant

intConstant

REG_SP

REG_BP

REG_RET

ZERO

INVALID

Method Detail

newVirtualReg

newAnonymousLabel

newCallLabel

newIntConstant

newStrConstant

clone

equals

hashCode

toString