| java.lang.Object
 javassist.bytecode.Descriptor
| Descriptor | | public class Descriptor (Code) | | A support class for dealing with descriptors.
See chapter 4.3 in "The Java Virtual Machine Specification (2nd ed.)"
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| Inner Class :public static class Iterator | |
| Method Summary | |
| public static String | appendParameter(String classname, String desc)
Appends a parameter type to the parameter list represented
by the given descriptor. | | public static int | arrayDimension(String desc)
Computes the dimension of the array represented by the given
descriptor. | | public static String | changeReturnType(String classname, String desc)
Changes the return type included in the given descriptor. | | public static int | dataSize(String desc)
Computes the data size specified by the given descriptor.
For example, if the descriptor is "D", this method returns 2.
If the descriptor represents a method type, this method returns
(the size of the returned value) - (the sum of the data sizes
of all the parameters). | | public static boolean | eqParamTypes(String desc1, String desc2)
Returns true if the list of the parameter types of desc1 is equal to
that of desc2. | | public static String | getParamDescriptor(String decl)
Returns the signature of the given descriptor. | | public static CtClass[] | getParameterTypes(String desc, ClassPool cp)
Returns the CtClass objects representing the parameter
types specified by the given descriptor. | | public static CtClass | getReturnType(String desc, ClassPool cp)
Returns the CtClass object representing the return
type specified by the given descriptor. | | public static String | insertParameter(String classname, String desc)
Inserts a parameter type at the beginning of the parameter
list represented
by the given descriptor. | | public static int | numOfParameters(String desc)
Returns the number of the prameters included in the given
descriptor. | | public static String | of(String classname)
| | public static String | of(CtClass type)
Returns the descriptor representing the given type. | | public static String | ofConstructor(CtClass[] paramTypes)
Returns the descriptor representing a constructor receiving
the given parameter types. | | public static String | ofMethod(CtClass returnType, CtClass[] paramTypes)
Returns the descriptor representing a method that receives
the given parameter types and returns the given type. | | public static String | ofParameters(CtClass[] paramTypes)
Returns the descriptor representing a list of parameter types. | | public static int | paramSize(String desc)
Computes the data size of parameters.
If one of the parameters is double type, the size of that parameter
is 2 words. | | public static String | rename(String desc, String oldname, String newname)
Substitutes a class name
in the given descriptor string. | | public static String | rename(String desc, Map map)
Substitutes class names in the given descriptor string
according to the given map. | | public static String | toArrayComponent(String desc, int dim)
Returns the descriptor of the type of the array component. | | public static String | toClassName(String descriptor)
Converts to a Java class name from a descriptor. | | public static CtClass | toCtClass(String desc, ClassPool cp)
Returns a CtClass object representing the type
specified by the given descriptor.
This method works even if the package-class separator is
not / but . (period). | | public static String | toJavaName(String classname)
Converts a class name from the internal representation used in
the JVM to the normal one used in Java. | | public static String | toJvmName(String classname)
Converts a class name into the internal representation used in
the JVM. | | public static String | toJvmName(CtClass clazz)
Returns the internal representation of the class name in the
JVM. |
| appendParameter | | public static String appendParameter(String classname, String desc)(Code) | | Appends a parameter type to the parameter list represented
by the given descriptor.
classname must not be an array type.
Parameters:
classname - parameter type (not primitive type)
Parameters:
desc - descriptor
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| arrayDimension | | public static int arrayDimension(String desc)(Code) | | Computes the dimension of the array represented by the given
descriptor. For example, if the descriptor is "[[I",
then this method returns 2.
Parameters:
desc - the descriptor. 0 if the descriptor does not represent an array type. |
| changeReturnType | | public static String changeReturnType(String classname, String desc)(Code) | | Changes the return type included in the given descriptor.
classname must not be an array type.
Parameters:
classname - return type
Parameters:
desc - descriptor
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| dataSize | | public static int dataSize(String desc)(Code) | | Computes the data size specified by the given descriptor.
For example, if the descriptor is "D", this method returns 2.
If the descriptor represents a method type, this method returns
(the size of the returned value) - (the sum of the data sizes
of all the parameters). For example, if the descriptor is
"(I)D", then this method returns 1 (= 2 - 1).
Parameters:
desc - descriptor |
| eqParamTypes | | public static boolean eqParamTypes(String desc1, String desc2)(Code) | | Returns true if the list of the parameter types of desc1 is equal to
that of desc2.
For example, "(II)V" and "(II)I" are equal.
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| getParamDescriptor | | public static String getParamDescriptor(String decl)(Code) | | Returns the signature of the given descriptor. The signature does
not include the return type. For example, the signature of "(I)V"
is "(I)".
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| getParameterTypes | | public static CtClass[] getParameterTypes(String desc, ClassPool cp) throws NotFoundException(Code) | | Returns the CtClass objects representing the parameter
types specified by the given descriptor.
Parameters:
desc - descriptor
Parameters:
cp - the class pool used for obtaininga CtClass object. |
| getReturnType | | public static CtClass getReturnType(String desc, ClassPool cp) throws NotFoundException(Code) | | Returns the CtClass object representing the return
type specified by the given descriptor.
Parameters:
desc - descriptor
Parameters:
cp - the class pool used for obtaininga CtClass object. |
| insertParameter | | public static String insertParameter(String classname, String desc)(Code) | | Inserts a parameter type at the beginning of the parameter
list represented
by the given descriptor.
classname must not be an array type.
Parameters:
classname - parameter type (not primitive type)
Parameters:
desc - descriptor
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| numOfParameters | | public static int numOfParameters(String desc)(Code) | | Returns the number of the prameters included in the given
descriptor.
Parameters:
desc - descriptor |
| of | | public static String of(String classname)(Code) | | Converts to a descriptor from a Java class name
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| of | | public static String of(CtClass type)(Code) | | Returns the descriptor representing the given type.
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| ofConstructor | | public static String ofConstructor(CtClass[] paramTypes)(Code) | | Returns the descriptor representing a constructor receiving
the given parameter types.
Parameters:
paramTypes - parameter types |
| ofMethod | | public static String ofMethod(CtClass returnType, CtClass[] paramTypes)(Code) | | Returns the descriptor representing a method that receives
the given parameter types and returns the given type.
Parameters:
returnType - return type
Parameters:
paramTypes - parameter types |
| ofParameters | | public static String ofParameters(CtClass[] paramTypes)(Code) | | Returns the descriptor representing a list of parameter types.
For example, if the given parameter types are two int,
then this method returns "(II)".
Parameters:
paramTypes - parameter types |
| paramSize | | public static int paramSize(String desc)(Code) | | Computes the data size of parameters.
If one of the parameters is double type, the size of that parameter
is 2 words. For example, if the given descriptor is
"(IJ)D", then this method returns 3. The size of the
return type is not computed.
Parameters:
desc - a method descriptor. |
| rename | | public static String rename(String desc, String oldname, String newname)(Code) | | Substitutes a class name
in the given descriptor string.
Parameters:
desc - descriptor string
Parameters:
oldname - replaced JVM class name
Parameters:
newname - substituted JVM class name
See Also: Descriptor.toJvmName(String) |
| rename | | public static String rename(String desc, Map map)(Code) | | Substitutes class names in the given descriptor string
according to the given map.
Parameters:
map - a map between replaced and substitutedJVM class names.
See Also: Descriptor.toJvmName(String) |
| toArrayComponent | | public static String toArrayComponent(String desc, int dim)(Code) | | Returns the descriptor of the type of the array component.
For example, if the given descriptor is
"[[Ljava/lang/String;" and the given dimension is 2,
then this method returns "Ljava/lang/String;".
Parameters:
desc - the descriptor.
Parameters:
dim - the array dimension. |
| toClassName | | public static String toClassName(String descriptor)(Code) | | Converts to a Java class name from a descriptor.
Parameters:
descriptor - type descriptor. |
| toCtClass | | public static CtClass toCtClass(String desc, ClassPool cp) throws NotFoundException(Code) | | Returns a CtClass object representing the type
specified by the given descriptor.
This method works even if the package-class separator is
not / but . (period). For example,
it accepts Ljava.lang.Object;
as well as Ljava/lang/Object;.
Parameters:
desc - descriptor
Parameters:
cp - the class pool used for obtaininga CtClass object. |
| toJavaName | | public static String toJavaName(String classname)(Code) | | Converts a class name from the internal representation used in
the JVM to the normal one used in Java.
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| toJvmName | | public static String toJvmName(String classname)(Code) | | Converts a class name into the internal representation used in
the JVM.
Note that toJvmName(toJvmName(s)) is equivalent
to toJvmName(s).
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| toJvmName | | public static String toJvmName(CtClass clazz)(Code) | | Returns the internal representation of the class name in the
JVM.
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