java.lang.Object
- org.objectweb.asm.signature.SignatureVisitor
- - org.objectweb.asm.util.CheckSignatureAdapter

```
public class CheckSignatureAdapter
extends SignatureVisitor
```
A SignatureVisitor that checks that its methods are properly used.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class CheckSignatureAdapter.State
The possible states of the automaton used to check the order of method calls.

Field Summary

Fields
Modifier and Type	Field	Description
`private boolean`	`canBeVoid`	Whether the visited signature can be 'V'.
`static int`	`CLASS_SIGNATURE`	Type to be used to check class signatures.
`private static java.lang.String`	`INVALID`
`static int`	`METHOD_SIGNATURE`	Type to be used to check method signatures.
`private SignatureVisitor`	`signatureVisitor`	The visitor to which this adapter must delegate calls.
`private CheckSignatureAdapter.State`	`state`	The current state of the automaton used to check the order of method calls.
`private int`	`type`	The type of the visited signature.
`static int`	`TYPE_SIGNATURE`	Type to be used to check type signatures.See `CheckSignatureAdapter(int, SignatureVisitor)`.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_CLASS_BOUND_STATES`	The valid automaton states for a `visitClassBound()` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_EXCEPTION_TYPE_STATES`	The valid automaton states for a `visitExceptionType()` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_FORMAL_TYPE_PARAMETER_STATES`	The valid automaton states for a `visitFormalTypeParameter(java.lang.String)` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_INTERFACE_BOUND_STATES`	The valid automaton states for a `visitInterfaceBound()` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_INTERFACE_STATES`	The valid automaton states for a `visitInterface()` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_PARAMETER_TYPE_STATES`	The valid automaton states for a `visitParameterType()` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_RETURN_TYPE_STATES`	The valid automaton states for a `visitReturnType()` method call.
`private static java.util.EnumSet<CheckSignatureAdapter.State>`	`VISIT_SUPER_CLASS_STATES`	The valid automaton states for a `visitSuperclass()` method call.

Fields inherited from class org.objectweb.asm.signature.SignatureVisitor
api, EXTENDS, INSTANCEOF, SUPER

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`CheckSignatureAdapter(int api, int type, SignatureVisitor signatureVisitor)`	Constructs a new `CheckSignatureAdapter`.
	`CheckSignatureAdapter(int type, SignatureVisitor signatureVisitor)`	Constructs a new `CheckSignatureAdapter`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`checkClassName(java.lang.String name, java.lang.String message)`
`private void`	`checkIdentifier(java.lang.String name, java.lang.String message)`
`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(java.lang.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(java.lang.String name)`	Visits a formal type parameter.
`void`	`visitInnerClassType(java.lang.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(java.lang.String name)`	Visits a signature corresponding to a type variable.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - CLASS_SIGNATURE
```
public static final int CLASS_SIGNATURE
```
    Type to be used to check class signatures. See CheckSignatureAdapter(int, SignatureVisitor).
    
    See Also:
    
    Constant Field Values
  - METHOD_SIGNATURE
```
public static final int METHOD_SIGNATURE
```
    Type to be used to check method signatures. See CheckSignatureAdapter(int, SignatureVisitor).
    
    See Also:
    
    Constant Field Values
  - TYPE_SIGNATURE
```
public static final int TYPE_SIGNATURE
```
    Type to be used to check type signatures.See CheckSignatureAdapter(int, SignatureVisitor).
    
    See Also:
    
    Constant Field Values
  - VISIT_FORMAL_TYPE_PARAMETER_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_FORMAL_TYPE_PARAMETER_STATES
```
    The valid automaton states for a visitFormalTypeParameter(java.lang.String) method call.
  - VISIT_CLASS_BOUND_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_CLASS_BOUND_STATES
```
    The valid automaton states for a visitClassBound() method call.
  - VISIT_INTERFACE_BOUND_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_INTERFACE_BOUND_STATES
```
    The valid automaton states for a visitInterfaceBound() method call.
  - VISIT_SUPER_CLASS_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_SUPER_CLASS_STATES
```
    The valid automaton states for a visitSuperclass() method call.
  - VISIT_INTERFACE_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_INTERFACE_STATES
```
    The valid automaton states for a visitInterface() method call.
  - VISIT_PARAMETER_TYPE_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_PARAMETER_TYPE_STATES
```
    The valid automaton states for a visitParameterType() method call.
  - VISIT_RETURN_TYPE_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_RETURN_TYPE_STATES
```
    The valid automaton states for a visitReturnType() method call.
  - VISIT_EXCEPTION_TYPE_STATES
```
private static final java.util.EnumSet<CheckSignatureAdapter.State> VISIT_EXCEPTION_TYPE_STATES
```
    The valid automaton states for a visitExceptionType() method call.
  - INVALID
```
private static final java.lang.String INVALID
```
    See Also:
    
    Constant Field Values
  - type
```
private final int type
```
    The type of the visited signature.
  - state
```
private CheckSignatureAdapter.State state
```
    The current state of the automaton used to check the order of method calls.
  - canBeVoid
```
private boolean canBeVoid
```
    Whether the visited signature can be 'V'.
  - signatureVisitor
```
private final SignatureVisitor signatureVisitor
```
    The visitor to which this adapter must delegate calls. May be null.
- Constructor Detail
  - CheckSignatureAdapter
```
public CheckSignatureAdapter(int type,
                             SignatureVisitor signatureVisitor)
```
    Constructs a new CheckSignatureAdapter. Subclasses must not use this constructor. Instead, they must use the CheckSignatureAdapter(int, int, SignatureVisitor) version.
    
    Parameters:
    
    type - the type of signature to be checked. See CLASS_SIGNATURE, METHOD_SIGNATURE and TYPE_SIGNATURE.
    
    signatureVisitor - the visitor to which this adapter must delegate calls. May be null.
  - CheckSignatureAdapter
```
protected CheckSignatureAdapter(int api,
                                int type,
                                SignatureVisitor signatureVisitor)
```
    Constructs a new CheckSignatureAdapter.
    
    Parameters:
    
    api - the ASM API version implemented by this visitor. Must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6, Opcodes.ASM7, Opcodes.ASM8 or Opcodes.ASM9.
    
    type - the type of signature to be checked. See CLASS_SIGNATURE, METHOD_SIGNATURE and TYPE_SIGNATURE.
    
    signatureVisitor - the visitor to which this adapter must delegate calls. May be null.
- Method Detail
  - visitFormalTypeParameter
```
public void visitFormalTypeParameter(java.lang.String name)
```
    Description copied from class: SignatureVisitor
    
    Visits a formal type parameter.
    
    Overrides:
    
    visitFormalTypeParameter in class SignatureVisitor
    
    Parameters:
    
    name - the name of the formal parameter.
  - visitClassBound
```
public SignatureVisitor visitClassBound()
```
    Description copied from class: SignatureVisitor
    
    Visits the class bound of the last visited formal type parameter.
    
    Overrides:
    
    visitClassBound in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the class bound.
  - visitInterfaceBound
```
public SignatureVisitor visitInterfaceBound()
```
    Description copied from class: SignatureVisitor
    
    Visits an interface bound of the last visited formal type parameter.
    
    Overrides:
    
    visitInterfaceBound in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the interface bound.
  - visitSuperclass
```
public SignatureVisitor visitSuperclass()
```
    Description copied from class: SignatureVisitor
    
    Visits the type of the super class.
    
    Overrides:
    
    visitSuperclass in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the super class type.
  - visitInterface
```
public SignatureVisitor visitInterface()
```
    Description copied from class: SignatureVisitor
    
    Visits the type of an interface implemented by the class.
    
    Overrides:
    
    visitInterface in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the interface type.
  - visitParameterType
```
public SignatureVisitor visitParameterType()
```
    Description copied from class: SignatureVisitor
    
    Visits the type of a method parameter.
    
    Overrides:
    
    visitParameterType in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the parameter type.
  - visitReturnType
```
public SignatureVisitor visitReturnType()
```
    Description copied from class: SignatureVisitor
    
    Visits the return type of the method.
    
    Overrides:
    
    visitReturnType in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the return type.
  - visitExceptionType
```
public SignatureVisitor visitExceptionType()
```
    Description copied from class: SignatureVisitor
    
    Visits the type of a method exception.
    
    Overrides:
    
    visitExceptionType in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the exception type.
  - visitBaseType
```
public void visitBaseType(char descriptor)
```
    Description copied from class: SignatureVisitor
    
    Visits a signature corresponding to a primitive type.
    
    Overrides:
    
    visitBaseType in class SignatureVisitor
    
    Parameters:
    
    descriptor - the descriptor of the primitive type, or 'V' for void .
  - visitTypeVariable
```
public void visitTypeVariable(java.lang.String name)
```
    Description copied from class: SignatureVisitor
    
    Visits a signature corresponding to a type variable.
    
    Overrides:
    
    visitTypeVariable in class SignatureVisitor
    
    Parameters:
    
    name - the name of the type variable.
  - visitArrayType
```
public SignatureVisitor visitArrayType()
```
    Description copied from class: SignatureVisitor
    
    Visits a signature corresponding to an array type.
    
    Overrides:
    
    visitArrayType in class SignatureVisitor
    
    Returns:
    
    a non null visitor to visit the signature of the array element type.
  - visitClassType
```
public void visitClassType(java.lang.String name)
```
    Description copied from class: SignatureVisitor
    
    Starts the visit of a signature corresponding to a class or interface type.
    
    Overrides:
    
    visitClassType in class SignatureVisitor
    
    Parameters:
    
    name - the internal name of the class or interface.
  - visitInnerClassType
```
public void visitInnerClassType(java.lang.String name)
```
    Description copied from class: SignatureVisitor
    
    Visits an inner class.
    
    Overrides:
    
    visitInnerClassType in class SignatureVisitor
    
    Parameters:
    
    name - the local name of the inner class in its enclosing class.
  - visitTypeArgument
```
public void visitTypeArgument()
```
    Description copied from class: SignatureVisitor
    
    Visits an unbounded type argument of the last visited class or inner class type.
    
    Overrides:
    
    visitTypeArgument in class SignatureVisitor
  - visitTypeArgument
```
public SignatureVisitor visitTypeArgument(char wildcard)
```
    Description copied from class: SignatureVisitor
    
    Visits a type argument of the last visited class or inner class type.
    
    Overrides:
    
    visitTypeArgument in class SignatureVisitor
    
    Parameters:
    
    wildcard - '+', '-' or '='.
    
    Returns:
    
    a non null visitor to visit the signature of the type argument.
  - visitEnd
```
public void visitEnd()
```
    Description copied from class: SignatureVisitor
    
    Ends the visit of a signature corresponding to a class or interface type.
    
    Overrides:
    
    visitEnd in class SignatureVisitor
  - checkClassName
```
private void checkClassName(java.lang.String name,
                            java.lang.String message)
```
  - checkIdentifier
```
private void checkIdentifier(java.lang.String name,
                             java.lang.String message)
```

Class CheckSignatureAdapter

Nested Class Summary

Field Summary

Fields inherited from class org.objectweb.asm.signature.SignatureVisitor

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

CLASS_SIGNATURE

METHOD_SIGNATURE

TYPE_SIGNATURE

VISIT_FORMAL_TYPE_PARAMETER_STATES

VISIT_CLASS_BOUND_STATES

VISIT_INTERFACE_BOUND_STATES

VISIT_SUPER_CLASS_STATES

VISIT_INTERFACE_STATES

VISIT_PARAMETER_TYPE_STATES

VISIT_RETURN_TYPE_STATES

VISIT_EXCEPTION_TYPE_STATES

INVALID

type

state

canBeVoid

signatureVisitor

Constructor Detail

CheckSignatureAdapter

CheckSignatureAdapter

Method Detail

visitFormalTypeParameter

visitClassBound

visitInterfaceBound

visitSuperclass

visitInterface

visitParameterType

visitReturnType

visitExceptionType

visitBaseType

visitTypeVariable

visitArrayType

visitClassType

visitInnerClassType

visitTypeArgument

visitTypeArgument

visitEnd

checkClassName

checkIdentifier