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 java.lang.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[]

Nested Class Summary

static class

Type.TypeHolder

Field Summary

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

Constructor Summary

protected

Type(byte t, java.lang.String s)

Method Summary

static int	getArgumentSizes(java.lang.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(java.lang.String signature) Convert arguments of a method (signature) to an array of Type objects.
static Type	getReturnType(java.lang.String signature) Convert return value of a method (signature) to a Type object.
java.lang.String	getSignature()
static java.lang.String	getSignature(java.lang.reflect.Constructor cons)
static java.lang.String	getSignature(java.lang.reflect.Method meth)
int	getSize()
byte	getType()
static Type	getType(java.lang.Class cl) Convert runtime java.lang.Class to BCEL Type object.
static Type	getType(java.lang.String signature)
static Type.TypeHolder	getTypeInternal(java.lang.String signature) Convert signature to a Type object.
static int	getTypeSize(java.lang.String signature) Return the size of the type expressed in the signature.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

type

protected byte type

signature

protected java.lang.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 ObjectType OBJECT_ARRAY

STRING_ARRAY

public static final ObjectType STRING_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 Detail

Type

protected Type(byte t,
               java.lang.String s)

Method Detail

getSignature

public java.lang.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 java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

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

getType

public static final Type getType(java.lang.String signature)

getTypeInternal

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

Convert signature to a Type object.

Parameters:

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

Returns:

type object

Throws:

java.lang.StringIndexOutOfBoundsException

getReturnType

public static Type getReturnType(java.lang.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(java.lang.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(java.lang.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(java.lang.String signature)

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

getType

public static Type getType(java.lang.Class cl)

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

Parameters:

cl - Java class

Returns:

corresponding Type object

getSignature

public static java.lang.String getSignature(java.lang.reflect.Method meth)

getSignature

public static java.lang.String getSignature(java.lang.reflect.Constructor cons)