Package org.apache.bcel.verifier.structurals

Class Frame

java.lang.Object

org.apache.bcel.verifier.structurals.Frame

public class Frame
extends java.lang.Object

This class represents a JVM execution frame; that means, a local variable array and an operand stack.

Field Summary

Fields

Modifier and Type	Field	Description
protected static UninitializedObjectType	_this	Deprecated. Use the getter/setter to access the field as it may be made private in a later release
private LocalVariables	locals	The local variables.
private OperandStack	stack	The operand stack.

Constructor Summary

Constructors

Constructor	Description
Frame(int maxLocals, int maxStack)	Constructs a Frame.
Frame(LocalVariables locals, OperandStack stack)	Constructs a Frame.

Method Summary

Modifier and Type	Method	Description
protected java.lang.Object	clone()	Creates a clone of this frame.
boolean	equals(java.lang.Object o)	Checks if this frame equals another object.
Frame	getClone()	Gets a clone of this frame.
LocalVariables	getLocals()	Gets the local variables.
OperandStack	getStack()	Gets the operand stack.
static UninitializedObjectType	getThis()	Gets the static _this reference.
int	hashCode()
static void	setThis(UninitializedObjectType _this)	Sets the static _this reference.
java.lang.String	toString()	Returns a String representation of the Frame instance.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

_this

@Deprecated
protected static UninitializedObjectType _this

Deprecated.

Use the getter/setter to access the field as it may be made private in a later release

For instance initialization methods, it is important to remember which instance it is that is not initialized yet. It will be initialized invoking another constructor later. NULL means the instance already *is* initialized.

locals

private final LocalVariables locals

The local variables.

stack

private final OperandStack stack

The operand stack.

Constructor Detail

Frame

public Frame(int maxLocals,
             int maxStack)

Constructs a Frame.

Parameters:

maxLocals - the maximum number of local variables.

maxStack - the maximum stack size.

Frame

public Frame(LocalVariables locals,
             OperandStack stack)

Constructs a Frame.

Parameters:

locals - the local variables.

stack - the operand stack.

Method Detail

getThis

public static UninitializedObjectType getThis()

Gets the static _this reference.

Returns:

the _this.

Since:

6.0

setThis

public static void setThis(UninitializedObjectType _this)

Sets the static _this reference.

Parameters:

_this - the _this to set.

Since:

6.0

clone

protected java.lang.Object clone()

Creates a clone of this frame.

Overrides:

clone in class java.lang.Object

Returns:

a clone of this frame.

equals

public boolean equals(java.lang.Object o)

Checks if this frame equals another object.

Overrides:

equals in class java.lang.Object

Parameters:

o - the object to compare.

Returns:

true if equal, false otherwise.

getClone

public Frame getClone()

Gets a clone of this frame.

Returns:

a clone of this frame.

getLocals

public LocalVariables getLocals()

Gets the local variables.

Returns:

the local variables.

getStack

public OperandStack getStack()

Gets the operand stack.

Returns:

the operand stack.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code value for the object.

toString

public java.lang.String toString()

Returns a String representation of the Frame instance.

Overrides:

toString in class java.lang.Object