com.google.gwt.dev.javac.asm

Class CollectClassData

java.lang.Object

com.google.gwt.dev.asm.ClassVisitor

com.google.gwt.dev.javac.asmbridge.EmptyVisitor

com.google.gwt.dev.javac.asm.CollectClassData

public class CollectClassData
extends EmptyVisitor

Reads the bytecode for a class and collects data needed for building TypeOracle structures.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CollectClassData.AnnotationEnum Holds the descriptor and value for an Enum-valued annotation.
static class	CollectClassData.ClassType Type of this class.

Field Summary

Fields inherited from class com.google.gwt.dev.javac.asmbridge.EmptyVisitor

av, fv, mv

Fields inherited from class com.google.gwt.dev.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

Constructor and Description
CollectClassData() Construct a visitor that will collect data about a class.

Method Summary

Modifier and Type	Method and Description
int	getAccess()
List<CollectAnnotationData>	getAnnotations()
CollectClassData.ClassType	getClassType()
List<CollectFieldData>	getFields()
String[]	getInterfaces()
List<CollectMethodData>	getMethods()
String	getName()
String	getOuterClass()
String	getOuterMethodDesc()
String	getOuterMethodName()
String	getSignature()
String	getSource()
String	getSuperName()
boolean	hasNoExternalName()
boolean	isAnonymous()
String	toString()
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces) Called at the beginning of visiting the class.
AnnotationVisitor	visitAnnotation(String desc, boolean visible) Visits an annotation of the class.
FieldVisitor	visitField(int access, String name, String desc, String signature, Object value) Called for each field.
void	visitInnerClass(String name, String outerName, String innerName, int access) Called once for every inner class of this class.
MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] exceptions) Visits a method of the class.
void	visitOuterClass(String owner, String name, String desc) Visits the enclosing class of the class.
void	visitSource(String source, String debug) If compiled with debug, visit the source information.

Methods inherited from class com.google.gwt.dev.asm.ClassVisitor

visitAttribute, visitEnd

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode

Constructor Detail

CollectClassData

public CollectClassData()

Construct a visitor that will collect data about a class.

Method Detail

getAccess

public int getAccess()

Returns:

the access flags for this class (ie, bitwise or of Opcodes.ACC_*).

getAnnotations

public List<CollectAnnotationData> getAnnotations()

Returns:

a list of annotations on this class.

getClassType

public CollectClassData.ClassType getClassType()

Returns:

the class type.

getFields

public List<CollectFieldData> getFields()

Returns:

a list of fields in this class.

getInterfaces

public String[] getInterfaces()

Returns:

an array of internal names of interfaces implemented by this class.

getMethods

public List<CollectMethodData> getMethods()

Returns:

the methods

getName

public String getName()

Returns:

the name

getOuterClass

public String getOuterClass()

Returns:

the outerClass

getOuterMethodDesc

public String getOuterMethodDesc()

Returns:

the outerMethodDesc

getOuterMethodName

public String getOuterMethodName()

Returns:

the outerMethodName

getSignature

public String getSignature()

Returns:

the signature

getSource

public String getSource()

Returns:

the source

getSuperName

public String getSuperName()

Returns:

the superName

hasNoExternalName

public boolean hasNoExternalName()

Returns:

true if this class has no external name (ie, is defined inside a method).

isAnonymous

public boolean isAnonymous()

Returns:

true if this class has no source name at all.

toString

public String toString()

Overrides:

toString in class Object

visit

public void visit(int version,
                  int access,
                  String name,
                  String signature,
                  String superName,
                  String[] interfaces)

Called at the beginning of visiting the class.

Overrides:

visit in class ClassVisitor

Parameters:

version - classfile version (ie, Opcodes.V1_5 etc)

access - access flags (ie, bitwise or of Opcodes.ACC_*)

name - internal name of this class (ie, com/google/Foo)

signature - generic signature or null

superName - binary name of superclass (ie, java/lang/Object)

interfaces - array of binary names of implemented interfaces

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)

Description copied from class: ClassVisitor

Visits an annotation of the class.

Overrides:

visitAnnotation in class EmptyVisitor

Parameters:

desc - the class descriptor of the annotation class.

visible - true if the annotation is visible at runtime.

Returns:

a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

visitField

public FieldVisitor visitField(int access,
                               String name,
                               String desc,
                               String signature,
                               Object value)

Called for each field.

Overrides:

visitField in class EmptyVisitor

Parameters:

access - access flags for field

name - field name

desc - type descriptor (ie, Ljava/lang/String;)

signature - generic signature (null if not generic)

value - initialized value if constant

Returns:

a visitor to visit field annotations and attributes, or null if this class visitor is not interested in visiting these annotations and attributes.

visitInnerClass

public void visitInnerClass(String name,
                            String outerName,
                            String innerName,
                            int access)

Called once for every inner class of this class.

Overrides:

visitInnerClass in class ClassVisitor

Parameters:

name - internal name of inner class (ie, com/google/Foo$1)

outerName - internal name of enclosing class (null if not a member class or anonymous)

innerName - simple name of the inner class (null if anonymous)

access - access flags (bitwise or of Opcodes.ACC_*) as declared in the enclosing class

visitMethod

public MethodVisitor visitMethod(int access,
                                 String name,
                                 String desc,
                                 String signature,
                                 String[] exceptions)

Description copied from class: ClassVisitor

Visits a method of the class. This method must return a new MethodVisitor instance (or null) each time it is called, i.e., it should not return a previously returned visitor.

Overrides:

visitMethod in class EmptyVisitor

Parameters:

access - the method's access flags (see Opcodes). This parameter also indicates if the method is synthetic and/or deprecated.

name - the method's name.

desc - the method's descriptor (see Type).

signature - the method's signature. May be null if the method parameters, return type and exceptions do not use generic types.

exceptions - the internal names of the method's exception classes (see getInternalName). May be null.

Returns:

an object to visit the byte code of the method, or null if this class visitor is not interested in visiting the code of this method.

visitOuterClass

public void visitOuterClass(String owner,
                            String name,
                            String desc)

Description copied from class: ClassVisitor

Visits the enclosing class of the class. This method must be called only if the class has an enclosing class.

Overrides:

visitOuterClass in class ClassVisitor

Parameters:

owner - internal name of the enclosing class of the class.

name - the name of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.

desc - the descriptor of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.

visitSource

public void visitSource(String source,
                        String debug)

If compiled with debug, visit the source information.

Overrides:

visitSource in class ClassVisitor

Parameters:

source - unqualified filename containing source (ie, Foo.java)

debug - additional debug information (may be null)