org.jace.parser.attribute

Class SignatureAttribute

java.lang.Object

org.jace.parser.attribute.SignatureAttribute

All Implemented Interfaces:

Attribute

public class SignatureAttribute
extends Object
implements Attribute

A SignatureAttribute represents a type signature for a generic type compiled with the new generics-enabled 1.5 compilers.

Author:

Toby Reyelts

Constructor Summary

Constructors

Constructor and Description
SignatureAttribute(InputStream stream, int nameIndex, ConstantPool pool) Creates a new SignatureAttribute.

Method Summary

Methods

Modifier and Type	Method and Description
int	getLength() Returns the length of this Attribute.
String	getName() Returns the attribute name.
String	getValue() Returns the Signature string that represents this generic type.
String	toString()
void	write(DataOutputStream output) Writes the Attribute out in class file format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SignatureAttribute

public SignatureAttribute(InputStream stream,
                  int nameIndex,
                  ConstantPool pool)
                   throws IOException

Creates a new SignatureAttribute.

Parameters:

stream - the stream to read from

nameIndex - the attribute index in the constant pool

pool - the constant pool to read from

Throws:

IOException - if an I/O error occurs while reading the attribute

Method Detail

write

public void write(DataOutputStream output)
           throws IOException

Description copied from interface: Attribute

Writes the Attribute out in class file format.

Specified by:

write in interface Attribute

Parameters:

output - the stream to write to

Throws:

IOException - if an I/O error occurs while writing to the stream

getName

public String getName()

Returns the attribute name.

Specified by:

getName in interface Attribute

Returns:

the attribute name

getValue

public String getValue()

Returns the Signature string that represents this generic type. More information from Scott follows: When used as an attribute of a method or field, a signature gives the full (possibly generic) type of that method or field. When used as a class attribute, a signature indicates the type parameters of the class, followed by its supertype, followed by all its interfaces. The type syntax in signatures is extended to parameterized types and type variables. There is also a new signature syntax for formal type parameters. The syntax extensions for signature strings are as follows: MethodOrFieldSignature ::= TypeSignature ClassSignature ::= ParameterPartOpt super_TypeSignature interface_TypeSignatures TypeSignatures ::= TypeSignatures TypeSignature TypeSignature ::= ... | ArrayTypeSignature | ClassTypeSignature | MethodTypeSignature | TypeVariableSignature VariantTypeSignature ::= '-' TypeSignature | '+' TypeSignature | TypeSignature | '*' VariantTypeSignatures ::= VariantTypeSignatures VariantTypeSignature | ClassTypeSignature ::= 'L' Ident TypeArgumentsOpt ';' | ClassTypeSignature '.' 'L' Ident TypeArgumentsOpt ';' MethodTypeSignature ::= ParameterPartOpt '(' TypeSignatures ')' TypeSignature ThrowsSignatureListOpt ThrowsSignatureList ::= ThrowsSignature ThrowsSignatureList | ThrowsSignature ThrowsSignature ::= '^' TypeSignature TypeVariableSignature ::= 'T' Ident ';' TypeArguments ::= '<' VariantTypeSignature VariantTypeSignatures '>' ParameterPart ::= '<' ParameterSignature ParameterSignatures '>' ParameterSignatures ::= ParameterSignatures ParameterSignature | ParameterSignature ::= Ident ':' TypeSignature | Ident ':' TypeSignatureOpt ':' TypeSignature TypeSignatures ArrayTypeSignature ::= '[' TypeSignature interface_TypeSignature::= TypeSignature super_TypeSignature ::= TypeSignature

Returns:

the Signature string that represents this generic type

getLength

public int getLength()

Returns the length of this Attribute.

Returns:

the length of this Attribute

toString

public String toString()

Overrides:

toString in class Object