Package com.tonic.parser.attribute

Class StackMapTableAttribute

java.lang.Object

com.tonic.parser.attribute.Attribute

com.tonic.parser.attribute.StackMapTableAttribute

public class StackMapTableAttribute
extends Attribute

The StackMapTable attribute: verification frames describing local and stack types at branch targets.

Constructor Summary

Constructors

Constructor	Description
StackMapTableAttribute(String name, ClassFile parent, int nameIndex, int length)	Creates the attribute shell for parsing, attached to a class.
StackMapTableAttribute(String name, MemberEntry parent, int nameIndex, int length)	Creates the attribute shell for parsing, attached to a member.

Method Summary

Modifier and Type	Method	Description
static StackMapTableAttribute	create(String name, MemberEntry parent, int nameIndex, List<StackMapFrame> frames)	Creates a new StackMapTableAttribute with the given frames.
List<StackMapFrame>	getFrames()
int	getNumberOfEntries()
void	read(ClassFile classFile, int length)	Reads the attribute data from the class file.
void	setFrames(List<StackMapFrame> frames)	Sets the frames for this StackMapTable.
String	toString()
void	updateLength()	Recomputes the attribute length field from the current in-memory content.

Methods inherited from class com.tonic.parser.attribute.Attribute

get, write

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StackMapTableAttribute

public StackMapTableAttribute(String name,
                              MemberEntry parent,
                              int nameIndex,
                              int length)

Creates the attribute shell for parsing, attached to a member.

Parameters:

name - the attribute name

parent - the member the attribute belongs to

nameIndex - constant-pool index of the name Utf8

length - the attribute length in bytes

StackMapTableAttribute

public StackMapTableAttribute(String name,
                              ClassFile parent,
                              int nameIndex,
                              int length)

Creates the attribute shell for parsing, attached to a class.

Parameters:

name - the attribute name

parent - the class the attribute belongs to

nameIndex - constant-pool index of the name Utf8

length - the attribute length in bytes

Method Detail

getNumberOfEntries

public int getNumberOfEntries()

Returns:

the number of entries

getFrames

public List<StackMapFrame> getFrames()

Returns:

the frames

setFrames

public void setFrames(List<StackMapFrame> frames)

Sets the frames for this StackMapTable.

Parameters:

frames - The list of StackMapFrame entries

create

public static StackMapTableAttribute create(String name,
                                            MemberEntry parent,
                                            int nameIndex,
                                            List<StackMapFrame> frames)

Creates a new StackMapTableAttribute with the given frames.

Parameters:

name - The attribute name ("StackMapTable")

parent - The parent MemberEntry (method)

nameIndex - The constant pool index for the attribute name

frames - The list of frames

Returns:

A new StackMapTableAttribute

read

public void read(ClassFile classFile,
                 int length)

Description copied from class: Attribute

Reads the attribute data from the class file.

Specified by:

read in class Attribute

Parameters:

classFile - The ClassFile utility to read data.

length - The length of the attribute.

updateLength

public void updateLength()

Description copied from class: Attribute

Recomputes the attribute length field from the current in-memory content.

Specified by:

updateLength in class Attribute

toString

public String toString()

Overrides:

toString in class Attribute