程序包 cn.taketoday.bytecode.signature

类 SignatureWriter

java.lang.Object

cn.taketoday.bytecode.signature.SignatureVisitor

cn.taketoday.bytecode.signature.SignatureWriter

public class SignatureWriter
extends SignatureVisitor

A SignatureVisitor that generates signature literals, as defined in the Java Virtual Machine Specification (JVMS).

作者:

Thomas Hallgren, Eric Bruneton

另请参阅:

• JVMS 4.7.9.1

字段概要

字段

修饰符和类型	字段	说明
private int	argumentStack	The stack used to keep track of class types that have arguments.
private boolean	hasFormals	Whether the visited signature contains formal type parameters.
private boolean	hasParameters	Whether the visited signature contains method parameter types.
private final StringBuilder	stringBuilder	The builder used to construct the visited signature.

从类继承的字段 cn.taketoday.bytecode.signature.SignatureVisitor

EXTENDS, INSTANCEOF, SUPER

构造器概要

构造器

构造器	说明
SignatureWriter()	Constructs a new SignatureWriter.

方法概要

修饰符和类型	方法	说明
private void	endArguments()	Ends the type arguments of a class or inner class type.
private void	endFormals()	Ends the formal type parameters section of the signature.
String	toString()	Returns the signature that was built by this signature writer.
SignatureVisitor	visitArrayType()	Visits a signature corresponding to an array type.
void	visitBaseType(char descriptor)	Visits a signature corresponding to a primitive type.
SignatureVisitor	visitClassBound()	Visits the class bound of the last visited formal type parameter.
void	visitClassType(String name)	Starts the visit of a signature corresponding to a class or interface type.
void	visitEnd()	Ends the visit of a signature corresponding to a class or interface type.
SignatureVisitor	visitExceptionType()	Visits the type of a method exception.
void	visitFormalTypeParameter(String name)	Visits a formal type parameter.
void	visitInnerClassType(String name)	Visits an inner class.
SignatureVisitor	visitInterface()	Visits the type of an interface implemented by the class.
SignatureVisitor	visitInterfaceBound()	Visits an interface bound of the last visited formal type parameter.
SignatureVisitor	visitParameterType()	Visits the type of a method parameter.
SignatureVisitor	visitReturnType()	Visits the return type of the method.
SignatureVisitor	visitSuperclass()	Visits the type of the super class.
void	visitTypeArgument()	Visits an unbounded type argument of the last visited class or inner class type.
SignatureVisitor	visitTypeArgument(char wildcard)	Visits a type argument of the last visited class or inner class type.
void	visitTypeVariable(String name)	Visits a signature corresponding to a type variable.

从类继承的方法 java.lang.Object

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

字段详细资料

stringBuilder

private final StringBuilder stringBuilder

The builder used to construct the visited signature.

hasFormals

private boolean hasFormals

Whether the visited signature contains formal type parameters.

hasParameters

private boolean hasParameters

Whether the visited signature contains method parameter types.

argumentStack

private int argumentStack

The stack used to keep track of class types that have arguments. Each element of this stack is a boolean encoded in one bit. The top of the stack is the least significant bit. Pushing false = *2, pushing true = *2+1, popping = /2.

Class type arguments must be surrounded with '<' and '>' and, because

1. class types can be nested (because type arguments can themselves be class types),
2. SignatureWriter always returns 'this' in each visit* method (to avoid allocating new SignatureWriter instances),

we need a stack to properly balance these 'parentheses'. A new element is pushed on this stack for each new visited type, and popped when the visit of this type ends (either is visitEnd, or because visitInnerClassType is called).

构造器详细资料

SignatureWriter

public SignatureWriter()

Constructs a new SignatureWriter.

方法详细资料

visitFormalTypeParameter

public void visitFormalTypeParameter(String name)

从类复制的说明: SignatureVisitor

Visits a formal type parameter.

覆盖:

visitFormalTypeParameter 在类中 SignatureVisitor

参数:

name - the name of the formal parameter.

visitClassBound

public SignatureVisitor visitClassBound()

从类复制的说明: SignatureVisitor

Visits the class bound of the last visited formal type parameter.

覆盖:

visitClassBound 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the class bound.

visitInterfaceBound

public SignatureVisitor visitInterfaceBound()

从类复制的说明: SignatureVisitor

Visits an interface bound of the last visited formal type parameter.

覆盖:

visitInterfaceBound 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the interface bound.

visitSuperclass

public SignatureVisitor visitSuperclass()

从类复制的说明: SignatureVisitor

Visits the type of the super class.

覆盖:

visitSuperclass 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the super class type.

visitInterface

public SignatureVisitor visitInterface()

从类复制的说明: SignatureVisitor

Visits the type of an interface implemented by the class.

覆盖:

visitInterface 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the interface type.

visitParameterType

public SignatureVisitor visitParameterType()

从类复制的说明: SignatureVisitor

Visits the type of a method parameter.

覆盖:

visitParameterType 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the parameter type.

visitReturnType

public SignatureVisitor visitReturnType()

从类复制的说明: SignatureVisitor

Visits the return type of the method.

覆盖:

visitReturnType 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the return type.

visitExceptionType

public SignatureVisitor visitExceptionType()

从类复制的说明: SignatureVisitor

Visits the type of a method exception.

覆盖:

visitExceptionType 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the exception type.

visitBaseType

public void visitBaseType(char descriptor)

从类复制的说明: SignatureVisitor

Visits a signature corresponding to a primitive type.

覆盖:

visitBaseType 在类中 SignatureVisitor

参数:

descriptor - the descriptor of the primitive type, or 'V' for void .

visitTypeVariable

public void visitTypeVariable(String name)

从类复制的说明: SignatureVisitor

Visits a signature corresponding to a type variable.

覆盖:

visitTypeVariable 在类中 SignatureVisitor

参数:

name - the name of the type variable.

visitArrayType

public SignatureVisitor visitArrayType()

从类复制的说明: SignatureVisitor

Visits a signature corresponding to an array type.

覆盖:

visitArrayType 在类中 SignatureVisitor

返回:

a non null visitor to visit the signature of the array element type.

visitClassType

public void visitClassType(String name)

从类复制的说明: SignatureVisitor

Starts the visit of a signature corresponding to a class or interface type.

覆盖:

visitClassType 在类中 SignatureVisitor

参数:

name - the internal name of the class or interface.

visitInnerClassType

public void visitInnerClassType(String name)

从类复制的说明: SignatureVisitor

Visits an inner class.

覆盖:

visitInnerClassType 在类中 SignatureVisitor

参数:

name - the local name of the inner class in its enclosing class.

visitTypeArgument

public void visitTypeArgument()

从类复制的说明: SignatureVisitor

Visits an unbounded type argument of the last visited class or inner class type.

覆盖:

visitTypeArgument 在类中 SignatureVisitor

visitTypeArgument

public SignatureVisitor visitTypeArgument(char wildcard)

从类复制的说明: SignatureVisitor

Visits a type argument of the last visited class or inner class type.

覆盖:

visitTypeArgument 在类中 SignatureVisitor

参数:

wildcard - '+', '-' or '='.

返回:

a non null visitor to visit the signature of the type argument.

visitEnd

public void visitEnd()

从类复制的说明: SignatureVisitor

Ends the visit of a signature corresponding to a class or interface type.

覆盖:

visitEnd 在类中 SignatureVisitor

toString

public String toString()

Returns the signature that was built by this signature writer.

覆盖:

toString 在类中 Object

返回:

the signature that was built by this signature writer.

endFormals

private void endFormals()

Ends the formal type parameters section of the signature.

endArguments

private void endArguments()

Ends the type arguments of a class or inner class type.