com.vladium.jcd.lib

类 Types

java.lang.Object

com.vladium.jcd.lib.Types

public abstract class Types
extends Object

Utility methods for manipulating type signatures and descriptors. TODO: fix usage of chars in parsers

作者:

(C) 2001, Vlad Roubtsov

构造器概要

构造器

构造器和说明
Types()

方法概要

限定符和类型	方法和说明
static String	accessFlagsToString(int flags, boolean isClass)
static String[]	descriptorToParameterTypes(String methoddescriptor)
static String	descriptorToReturnType(String methoddescriptor)
static Class	descriptorToType(String typedescriptor) Converts a VM descriptor to the corresponding type.
static String	fullMethodDescriptorToFullUserName(String classJavaName, String methodName, String methoddescriptor)
static String	fullMethodDescriptorToUserName(String classJavaName, String methodName, String methoddescriptor)
static String	getClassPackageName(Class c) Returns 'c''s package name [does not include trailing '.'] or "" if 'c' is in the default package.
static String	javaNameToVMName(String javaName) Converts Java-styled package/class name to how it would be represented in the VM.
static String	methodDescriptorToUserName(String methoddescriptor)
static String	signatureToDescriptor(Class[] parameterTypes, Class returnType) Converts a method signature (parameter types + return type) to its VM descriptor representation.
static String	signatureToDescriptor(Method method) Converts a method signature to its VM descriptor representation.
static String	signatureToMethodDescriptor(String[] parameterTypeDescriptors, String returnTypeDescriptor)
static String	typeDescriptorToUserName(String typedescriptor)
static String	typeToDescriptor(Class type) Converts a type (a Class) to its VM descriptor representation.
static String	vmNameToJavaName(String vmName) Converts a VM-styled package/class name to how it would be represented in Java.

从类继承的方法 java.lang.Object

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

构造器详细资料

Types

public Types()

方法详细资料

getClassPackageName

public static String getClassPackageName(Class c)

Returns 'c''s package name [does not include trailing '.'] or "" if 'c' is in the default package.

accessFlagsToString

public static String accessFlagsToString(int flags,
                                         boolean isClass)

javaNameToVMName

public static String javaNameToVMName(String javaName)

Converts Java-styled package/class name to how it would be represented in the VM.

Example:
javaNameToVMName("java.lang.Object") = "java/lang/Object"

另请参阅:

vmNameToJavaName(java.lang.String)

vmNameToJavaName

public static String vmNameToJavaName(String vmName)

Converts a VM-styled package/class name to how it would be represented in Java.

Example:
vmNameToJavaName("java/lang/Object") = "java.lang.Object"

另请参阅:

javaNameToVMName(java.lang.String)

signatureToDescriptor

public static String signatureToDescriptor(Method method)

Converts a method signature to its VM descriptor representation. See $4.3 of the VM spec 1.0 for the descriptor grammar.

Example:
signatureToDescriptor(new Object().getClass().getMethod("equals" ,new Class[0])) = "(Ljava/lang/Object;)Z"

Equivalent to signatureToDescriptor(method.getParameterTypes (), method.getReturnType ()).

signatureToDescriptor

public static String signatureToDescriptor(Class[] parameterTypes,
                                           Class returnType)

Converts a method signature (parameter types + return type) to its VM descriptor representation. See $4.3 of the VM spec 1.0 for the descriptor grammar.

typeToDescriptor

public static String typeToDescriptor(Class type)

Converts a type (a Class) to its VM descriptor representation.

Example:
typeToDescriptor(Object.class) = "Ljava/lang/Object;"
typeToDescriptor(boolean.class) = "Z"

Note the invariant typeToDescriptor(descriptorToType(desc)) == desc.

另请参阅:

descriptorToType(java.lang.String)

descriptorToType

public static Class descriptorToType(String typedescriptor)
                              throws ClassNotFoundException

Converts a VM descriptor to the corresponding type.

Example:
descriptorToType("[[I") = int[][].class
descriptorToType("B") = byte.class

Note the invariant descriptorToType(typeToDescriptor(c)) == c.

抛出:

ClassNotFoundException

另请参阅:

descriptorToType(java.lang.String)

descriptorToReturnType

public static String descriptorToReturnType(String methoddescriptor)

descriptorToParameterTypes

public static String[] descriptorToParameterTypes(String methoddescriptor)

signatureToMethodDescriptor

public static String signatureToMethodDescriptor(String[] parameterTypeDescriptors,
                                                 String returnTypeDescriptor)

typeDescriptorToUserName

public static String typeDescriptorToUserName(String typedescriptor)

methodDescriptorToUserName

public static String methodDescriptorToUserName(String methoddescriptor)

fullMethodDescriptorToUserName

public static String fullMethodDescriptorToUserName(String classJavaName,
                                                    String methodName,
                                                    String methoddescriptor)

fullMethodDescriptorToFullUserName

public static String fullMethodDescriptorToFullUserName(String classJavaName,
                                                        String methodName,
                                                        String methoddescriptor)