Package org.apache.bcel.generic
Class Type
- java.lang.Object
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- org.apache.bcel.generic.Type
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- All Implemented Interfaces:
java.io.Serializable
- Direct Known Subclasses:
BasicType
,DOUBLE_Upper
,LONG_Upper
,ReferenceType
,ReturnaddressType
public abstract class Type extends java.lang.Object implements java.io.Serializable
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 392823 2006-04-09 20:02:13Z dbrosius $
- Author:
- M. Dahm
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static BasicType
BOOLEAN
static BasicType
BYTE
static BasicType
CHAR
static ObjectType
CLASS
static BasicType
DOUBLE
static BasicType
FLOAT
static BasicType
INT
static BasicType
LONG
static Type[]
NO_ARGS
static ReferenceType
NULL
static ObjectType
OBJECT
static BasicType
SHORT
protected java.lang.String
signature
static ObjectType
STRING
static ObjectType
STRINGBUFFER
static ObjectType
THROWABLE
protected byte
type
static Type
UNKNOWN
static BasicType
VOID
Predefined constants
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Constructor Summary
Constructors Modifier Constructor Description protected
Type(byte t, java.lang.String s)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(java.lang.Object o)
static Type[]
getArgumentTypes(java.lang.String signature)
Convert arguments of a method (signature) to an array of Type objects.static java.lang.String
getMethodSignature(Type return_type, Type[] arg_types)
Convert type to Java method signature, e.g.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.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)
Convert signature to a Type object.static Type[]
getTypes(java.lang.Class[] classes)
Convert runtime java.lang.Class[] to BCEL Type objects.int
hashCode()
java.lang.String
toString()
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Field Detail
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type
protected byte type
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signature
protected java.lang.String signature
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VOID
public static final BasicType VOID
Predefined constants
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BOOLEAN
public static final BasicType BOOLEAN
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INT
public static final BasicType INT
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SHORT
public static final BasicType SHORT
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BYTE
public static final BasicType BYTE
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LONG
public static final BasicType LONG
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DOUBLE
public static final BasicType DOUBLE
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FLOAT
public static final BasicType FLOAT
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CHAR
public static final BasicType CHAR
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OBJECT
public static final ObjectType OBJECT
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CLASS
public static final ObjectType CLASS
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STRING
public static final ObjectType STRING
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STRINGBUFFER
public static final ObjectType STRINGBUFFER
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THROWABLE
public static final ObjectType THROWABLE
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NO_ARGS
public static final Type[] NO_ARGS
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NULL
public static final ReferenceType NULL
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UNKNOWN
public static final Type UNKNOWN
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Method Detail
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
- Returns:
- hashcode of Type
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equals
public boolean equals(java.lang.Object o)
- Overrides:
equals
in classjava.lang.Object
- Returns:
- whether the Types are equal
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getSignature
public java.lang.String getSignature()
- Returns:
- signature for given type.
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getType
public byte getType()
- Returns:
- type as defined in Constants
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getSize
public int getSize()
- Returns:
- stack size of this type (2 for long and double, 0 for void, 1 otherwise)
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
- Returns:
- Type string, e.g. `int[]'
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getMethodSignature
public static java.lang.String getMethodSignature(Type return_type, Type[] arg_types)
Convert type to Java method signature, e.g. int[] f(java.lang.String x) becomes (Ljava/lang/String;)[I- Parameters:
return_type
- what the method returnsarg_types
- what are the argument types- Returns:
- method signature for given type(s).
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getType
public static final Type getType(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
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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
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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
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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
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getTypes
public static Type[] getTypes(java.lang.Class[] classes)
Convert runtime java.lang.Class[] to BCEL Type objects.- Parameters:
classes
- an array of runtime class objects- Returns:
- array of corresponding Type objects
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getSignature
public static java.lang.String getSignature(java.lang.reflect.Method meth)
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