com.vladium.jcd.lib

类 Types

java.lang.Object

com.vladium.jcd.lib.Types

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

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

accessFlagsToString

public static java.lang.String accessFlagsToString(int flags,
                                                   boolean isClass)

javaNameToVMName

public static java.lang.String javaNameToVMName(java.lang.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 java.lang.String vmNameToJavaName(java.lang.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 java.lang.String signatureToDescriptor(java.lang.reflect.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 java.lang.String signatureToDescriptor(java.lang.Class[] parameterTypes,
                                                     java.lang.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 java.lang.String typeToDescriptor(java.lang.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 java.lang.Class descriptorToType(java.lang.String typedescriptor)
                                        throws java.lang.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:

java.lang.ClassNotFoundException

另请参阅:

descriptorToType(java.lang.String)

descriptorToReturnType

public static java.lang.String descriptorToReturnType(java.lang.String methoddescriptor)

descriptorToParameterTypes

public static java.lang.String[] descriptorToParameterTypes(java.lang.String methoddescriptor)

signatureToMethodDescriptor

public static java.lang.String signatureToMethodDescriptor(java.lang.String[] parameterTypeDescriptors,
                                                           java.lang.String returnTypeDescriptor)

typeDescriptorToUserName

public static java.lang.String typeDescriptorToUserName(java.lang.String typedescriptor)

methodDescriptorToUserName

public static java.lang.String methodDescriptorToUserName(java.lang.String methoddescriptor)

fullMethodDescriptorToUserName

public static java.lang.String fullMethodDescriptorToUserName(java.lang.String classJavaName,
                                                              java.lang.String methodName,
                                                              java.lang.String methoddescriptor)

fullMethodDescriptorToFullUserName

public static java.lang.String fullMethodDescriptorToFullUserName(java.lang.String classJavaName,
                                                                  java.lang.String methodName,
                                                                  java.lang.String methoddescriptor)