Package org.aspectj.apache.bcel.generic

Class Type

java.lang.Object

org.aspectj.apache.bcel.generic.Type

Direct Known Subclasses:

BasicType, ReferenceType, ReturnaddressType

public abstract class Type
extends Object

Abstract super class for all possible java types, namely basic types such as int, object types like String and array types, e.g. int[]

Version:

$Id: Type.java,v 1.14 2011/09/28 01:14:54 aclement Exp $

Author:

M. Dahm modified: AndyClement 2-mar-05: Removed unnecessary static and optimized

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Type.TypeHolder

Field Summary

Fields

Modifier and Type	Field	Description
static final BasicType	BOOLEAN
static final BasicType	BYTE
static final BasicType	CHAR
static final ObjectType	CLASS
static final ArrayType	CLASS_ARRAY
static final BasicType	DOUBLE
static final ObjectType	EXCEPTION
static final BasicType	FLOAT
static final BasicType	INT
static final ObjectType	INTEGER
static final ObjectType	ITERATOR
static final ObjectType	LIST
static final BasicType	LONG
static final Type[]	NO_ARGS
static final ReferenceType	NULL
static final ObjectType	OBJECT
static final ArrayType	OBJECT_ARRAY
static final BasicType	SHORT
protected String	signature
static final ObjectType	STRING
static final ArrayType	STRING_ARRAY
static final Type[]	STRINGARRAY1
static final Type[]	STRINGARRAY2
static final Type[]	STRINGARRAY3
static final Type[]	STRINGARRAY4
static final Type[]	STRINGARRAY5
static final Type[]	STRINGARRAY6
static final Type[]	STRINGARRAY7
static final ObjectType	STRINGBUFFER
static final ObjectType	STRINGBUILDER
static final ObjectType	THROWABLE
protected byte	type
static final Type	UNKNOWN
static final BasicType	VOID

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Type(byte t, String s)

Method Summary

Modifier and Type	Method	Description
static int	getArgumentSizes(String signature)	Work out the type of each argument in the signature and return the cumulative sizes of all the types (size means number of stack slots it consumes, eg double=2, int=1).
static Type[]	getArgumentTypes(String signature)	Convert arguments of a method (signature) to an array of Type objects.
static Type	getReturnType(String signature)	Convert return value of a method (signature) to a Type object.
String	getSignature()
static String	getSignature(Constructor<?> cons)
static String	getSignature(Method meth)
int	getSize()
byte	getType()
static Type	getType(Class cl)	Convert runtime java.lang.Class to BCEL Type object.
static final Type	getType(String signature)
static final Type.TypeHolder	getTypeInternal(String signature)	Convert signature to a Type object.
static int	getTypeSize(String signature)	Return the size of the type expressed in the signature.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

type

protected byte type

signature

protected String signature

VOID

public static final BasicType VOID

BOOLEAN

public static final BasicType BOOLEAN

INT

public static final BasicType INT

SHORT

public static final BasicType SHORT

BYTE

public static final BasicType BYTE

LONG

public static final BasicType LONG

DOUBLE

public static final BasicType DOUBLE

FLOAT

public static final BasicType FLOAT

CHAR

public static final BasicType CHAR

OBJECT

public static final ObjectType OBJECT

STRING

public static final ObjectType STRING

OBJECT_ARRAY

public static final ArrayType OBJECT_ARRAY

STRING_ARRAY

public static final ArrayType STRING_ARRAY

CLASS_ARRAY

public static final ArrayType CLASS_ARRAY

STRINGBUFFER

public static final ObjectType STRINGBUFFER

STRINGBUILDER

public static final ObjectType STRINGBUILDER

THROWABLE

public static final ObjectType THROWABLE

CLASS

public static final ObjectType CLASS

INTEGER

public static final ObjectType INTEGER

EXCEPTION

public static final ObjectType EXCEPTION

LIST

public static final ObjectType LIST

ITERATOR

public static final ObjectType ITERATOR

NO_ARGS

public static final Type[] NO_ARGS

NULL

public static final ReferenceType NULL

UNKNOWN

public static final Type UNKNOWN

STRINGARRAY1

public static final Type[] STRINGARRAY1

STRINGARRAY2

public static final Type[] STRINGARRAY2

STRINGARRAY3

public static final Type[] STRINGARRAY3

STRINGARRAY4

public static final Type[] STRINGARRAY4

STRINGARRAY5

public static final Type[] STRINGARRAY5

STRINGARRAY6

public static final Type[] STRINGARRAY6

STRINGARRAY7

public static final Type[] STRINGARRAY7

Constructor Details

Type

protected Type(byte t,
 String s)

Method Details

getSignature

public String getSignature()

getType

public byte getType()

getSize

public int getSize()

Returns:

stack size of this type (2 for long and double, 0 for void, 1 otherwise)

toString

public String toString()

Overrides:

toString in class Object

Returns:

Type string, e.g. 'int[]'

getType

public static final Type getType(String signature)

getTypeInternal

public static final Type.TypeHolder getTypeInternal(String signature)
                                             throws StringIndexOutOfBoundsException

Convert signature to a Type object.

Parameters:

signature - signature string such as Ljava/lang/String;

Returns:

type object

Throws:

StringIndexOutOfBoundsException

getReturnType

public static Type getReturnType(String signature)

Convert return value of a method (signature) to a Type object.

Parameters:

signature - signature string such as (Ljava/lang/String;)V

Returns:

return type

getArgumentTypes

public static Type[] getArgumentTypes(String signature)

Convert arguments of a method (signature) to an array of Type objects.

Parameters:

signature - signature string such as (Ljava/lang/String;)V

Returns:

array of argument types

getArgumentSizes

public static int getArgumentSizes(String signature)

Work out the type of each argument in the signature and return the cumulative sizes of all the types (size means number of stack slots it consumes, eg double=2, int=1). Unlike the call above, this does minimal unpacking

getTypeSize

public static int getTypeSize(String signature)

Return the size of the type expressed in the signature. The signature should contain only one type.

getType

public static Type getType(Class cl)

Convert runtime java.lang.Class to BCEL Type object.

Parameters:

cl - Java class

Returns:

corresponding Type object

getSignature

public static String getSignature(Method meth)

getSignature

public static String getSignature(Constructor<?> cons)