Package org.objectweb.asm.signature

Class SignatureReader

java.lang.Object

org.objectweb.asm.signature.SignatureReader

public class SignatureReader
extends Object

A parser for signature literals, as defined in the Java Virtual Machine Specification (JVMS), to visit them with a SignatureVisitor.

See Also:

• JVMS 4.7.9.1

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	MAX_DEPTH	Maximum recursion level for parseType(java.lang.String, int, org.objectweb.asm.signature.SignatureVisitor, int).
private final String	signatureValue	The JVMS signature to be read.

Constructor Summary

Constructors

Constructor	Description
SignatureReader(String signature)	Constructs a SignatureReader for the given signature.

Method Summary

Modifier and Type	Method	Description
void	accept(SignatureVisitor signatureVistor)	Makes the given visitor visit the signature of this SignatureReader.
void	acceptType(SignatureVisitor signatureVisitor)	Makes the given visitor visit the signature of this SignatureReader.
private static int	parseType(String signature, int offset, SignatureVisitor visitor, int depthLimit)	Parses a JavaTypeSignature and makes the given visitor visit it.

Methods inherited from class java.lang.Object

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

Field Details

MAX_DEPTH

private static final int MAX_DEPTH

Maximum recursion level for parseType(java.lang.String, int, org.objectweb.asm.signature.SignatureVisitor, int).

See Also:

• Constant Field Values

signatureValue

private final String signatureValue

The JVMS signature to be read.

Constructor Details

SignatureReader

public SignatureReader(String signature)

Constructs a SignatureReader for the given signature.

Parameters:

signature - A JavaTypeSignature, ClassSignature or MethodSignature.

Method Details

accept

public void accept(SignatureVisitor signatureVistor)

Makes the given visitor visit the signature of this SignatureReader. This signature is the one specified in the constructor (see SignatureReader(java.lang.String)). This method is intended to be called on a SignatureReader that was created using a ClassSignature (such as the signature parameter of the ClassVisitor.visit(int, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[]) method) or a MethodSignature (such as the signature parameter of the ClassVisitor.visitMethod(int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[]) method).

Parameters:

signatureVistor - the visitor that must visit this signature.

Throws:

LimitExceededException - if there are more than 256 levels of nested type arguments.

acceptType

public void acceptType(SignatureVisitor signatureVisitor)

Makes the given visitor visit the signature of this SignatureReader. This signature is the one specified in the constructor (see SignatureReader(java.lang.String)). This method is intended to be called on a SignatureReader that was created using a JavaTypeSignature, such as the signature parameter of the ClassVisitor.visitField(int, java.lang.String, java.lang.String, java.lang.String, java.lang.Object) or MethodVisitor.visitLocalVariable(java.lang.String, java.lang.String, java.lang.String, org.objectweb.asm.Label, org.objectweb.asm.Label, int) methods.

Parameters:

signatureVisitor - the visitor that must visit this signature.

Throws:

LimitExceededException - if there are more than 256 levels of nested type arguments.

parseType

private static int parseType(String signature,
 int offset,
 SignatureVisitor visitor,
 int depthLimit)

Parses a JavaTypeSignature and makes the given visitor visit it.

Parameters:

signature - a string containing the signature that must be parsed.

offset - index of the first character of the signature to parsed.

visitor - the visitor that must visit this signature.

depthLimit - the maximum allowed depth for further recursive calls.

Returns:

the index of the first character after the parsed signature.