Byte Buddy 1.14.12 · net.bytebuddy.jar.asm.ClassWriter

Field Summary

Modifier and Type	Field and Description
private int	accessFlags The access_flags field of the JVMS ClassFile structure.
private int	compute Indicates what must be automatically computed in `MethodWriter`.
public static final int	COMPUTE_FRAMES A flag to automatically compute the stack map frames of methods from scratch.
public static final int	COMPUTE_MAXS A flag to automatically compute the maximum stack size and the maximum number of local variables of methods.
private ByteVector	debugExtension The debug_extension field of the SourceDebugExtension attribute, or null.
private int	enclosingClassIndex The class_index field of the EnclosingMethod attribute, or 0.
private int	enclosingMethodIndex The method_index field of the EnclosingMethod attribute.
private Attribute	firstAttribute The first non standard attribute of this class.
private FieldWriter	firstField The fields of this class, stored in a linked list of `FieldWriter` linked via their `FieldWriter#fv` field.
private MethodWriter	firstMethod The methods of this class, stored in a linked list of `MethodWriter` linked via their `MethodWriter#mv` field.
private RecordComponentWriter	firstRecordComponent The record components of this class, stored in a linked list of `RecordComponentWriter` linked via their `RecordComponentWriter#delegate` field.
private final int	flags The flags passed to the constructor.
private ByteVector	innerClasses The 'classes' array of the InnerClasses attribute, or null.
private int	interfaceCount The interface_count field of the JVMS ClassFile structure.
private int[]	interfaces The 'interfaces' array of the JVMS ClassFile structure.
private FieldWriter	lastField The fields of this class, stored in a linked list of `FieldWriter` linked via their `FieldWriter#fv` field.
private MethodWriter	lastMethod The methods of this class, stored in a linked list of `MethodWriter` linked via their `MethodWriter#mv` field.
private RecordComponentWriter	lastRecordComponent The record components of this class, stored in a linked list of `RecordComponentWriter` linked via their `RecordComponentWriter#delegate` field.
private AnnotationWriter	lastRuntimeInvisibleAnnotation The last runtime invisible annotation of this class.
private AnnotationWriter	lastRuntimeInvisibleTypeAnnotation The last runtime invisible type annotation of this class.
private AnnotationWriter	lastRuntimeVisibleAnnotation The last runtime visible annotation of this class.
private AnnotationWriter	lastRuntimeVisibleTypeAnnotation The last runtime visible type annotation of this class.
private ModuleWriter	moduleWriter The Module attribute of this class, or null.
private int	nestHostClassIndex The host_class_index field of the NestHost attribute, or 0.
private ByteVector	nestMemberClasses The 'classes' array of the NestMembers attribute, or null.
private int	numberOfInnerClasses The number_of_classes field of the InnerClasses attribute, or 0.
private int	numberOfNestMemberClasses The number_of_classes field of the NestMembers attribute, or 0.
private int	numberOfPermittedSubclasses The number_of_classes field of the PermittedSubclasses attribute, or 0.
private ByteVector	permittedSubclasses The 'classes' array of the PermittedSubclasses attribute, or null.
private int	signatureIndex The signature_index field of the Signature attribute, or 0.
private int	sourceFileIndex The source_file_index field of the SourceFile attribute, or 0.
private int	superClass The super_class field of the JVMS ClassFile structure.
private final SymbolTable	symbolTable The symbol table for this class (contains the constant_pool and the BootstrapMethods).
private int	thisClass The this_class field of the JVMS ClassFile structure.
private int	version The minor_version and major_version fields of the JVMS ClassFile structure.

Inherited from net.bytebuddy.jar.asm.ClassVisitor:: api cv

Access	Constructor and Description
public	ClassWriter(final int option flags that can be used to modify the default behavior of this class. Must be zero or more of `COMPUTE_MAXS` and `COMPUTE_FRAMES`. flags) Constructs a new `ClassWriter` object.
public	ClassWriter(final ClassReader the `ClassReader` used to read the original class. It will be used to copy the entire constant pool and bootstrap methods from the original class and also to copy other fragments of original bytecode where applicable. classReader, final int option flags that can be used to modify the default behavior of this class. Must be zero or more of `COMPUTE_MAXS` and `COMPUTE_FRAMES`. These option flags do not affect methods that are copied as is in the new class. This means that neither the maximum stack size nor the stack frames will be computed for these methods. flags) Constructs a new `ClassWriter` object and enables optimizations for "mostly add" bytecode transformations.

Method Summary

Modifier and Type	Method and Description
private Attribute[]	Returns: the prototypes of the attributes used by this class, its fields and its methods. getAttributePrototypes() Returns the prototypes of the attributes used by this class, its fields and its methods.
protected ClassLoader	Returns: ClassLoader getClassLoader() Returns the `ClassLoader` to be used by the default implementation of `getCommonSuperClass(String, String)`, that of this `ClassWriter`'s runtime type by default.
protected String	Returns: the internal name of the common super class of the two given classes (see `Type#getInternalName()`). getCommonSuperClass(final String the internal name of a class (see `Type#getInternalName()`). type1, final String the internal name of another class (see `Type#getInternalName()`). type2) Returns the common super type of the two given types.
public boolean	Returns: true if all the given flags, or more, were passed to the constructor. hasFlags(final int some option flags. Must be zero or more of `COMPUTE_MAXS` and `COMPUTE_FRAMES`. flags) Returns true if all the given flags were passed to the constructor.
public int	Returns: the index of a new or already existing class reference item. newClass(final String the internal name of the class (see `Type#getInternalName()`). value) Adds a class reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing constant item with the given value. newConst(final Object the value of the constant to be added to the constant pool. This parameter must be an `Integer`, a `Float`, a `Long`, a `Double` or a `String`. value) Adds a number or string constant to the constant pool of the class being build.
public int	Returns: the index of a new or already existing dynamic constant reference item. newConstantDynamic(final String name of the invoked method. name, final String field descriptor of the constant type. descriptor, final Handle the bootstrap method. bootstrapMethodHandle, final Object... the bootstrap method constant arguments. bootstrapMethodArguments) Adds a dynamic constant reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing field reference item. newField(final String the internal name of the field's owner class (see `Type#getInternalName()`). owner, final String the field's name. name, final String the field's descriptor. descriptor) Adds a field reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing method type reference item. newHandle(final int the kind of this handle. Must be `Opcodes#H_GETFIELD`, `Opcodes#H_GETSTATIC`, `Opcodes#H_PUTFIELD`, `Opcodes#H_PUTSTATIC`, `Opcodes#H_INVOKEVIRTUAL`, `Opcodes#H_INVOKESTATIC`, `Opcodes#H_INVOKESPECIAL`, `Opcodes#H_NEWINVOKESPECIAL` or `Opcodes#H_INVOKEINTERFACE`. tag, final String the internal name of the field or method owner class (see `Type#getInternalName()`). owner, final String the name of the field or method. name, final String the descriptor of the field or method. descriptor) Deprecated this method is superseded by `newHandle(int, String, String, String, boolean)`. Adds a handle to the constant pool of the class being build.
public int	Returns: the index of a new or already existing method type reference item. newHandle(final int the kind of this handle. Must be `Opcodes#H_GETFIELD`, `Opcodes#H_GETSTATIC`, `Opcodes#H_PUTFIELD`, `Opcodes#H_PUTSTATIC`, `Opcodes#H_INVOKEVIRTUAL`, `Opcodes#H_INVOKESTATIC`, `Opcodes#H_INVOKESPECIAL`, `Opcodes#H_NEWINVOKESPECIAL` or `Opcodes#H_INVOKEINTERFACE`. tag, final String the internal name of the field or method owner class (see `Type#getInternalName()`). owner, final String the name of the field or method. name, final String the descriptor of the field or method. descriptor, final boolean true if the owner is an interface. isInterface) Adds a handle to the constant pool of the class being build.
public int	Returns: the index of a new or already existing invokedynamic reference item. newInvokeDynamic(final String name of the invoked method. name, final String descriptor of the invoke method. descriptor, final Handle the bootstrap method. bootstrapMethodHandle, final Object... the bootstrap method constant arguments. bootstrapMethodArguments) Adds an invokedynamic reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing method reference item. newMethod(final String the internal name of the method's owner class (see `Type#getInternalName()`). owner, final String the method's name. name, final String the method's descriptor. descriptor, final boolean true if `owner` is an interface. isInterface) Adds a method reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing method type reference item. newMethodType(final String method descriptor of the method type. methodDescriptor) Adds a method type reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing module reference item. newModule(final String name of the module. moduleName) Adds a module reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing name and type item. newNameType(final String a name. name, final String a type descriptor. descriptor) Adds a name and type to the constant pool of the class being build.
public int	Returns: the index of a new or already existing module reference item. newPackage(final String name of the package in its internal form. packageName) Adds a package reference to the constant pool of the class being build.
public int	Returns: the index of a new or already existing UTF8 item. newUTF8(final String the String value. value) Adds an UTF8 string to the constant pool of the class being build.
private byte[]	Returns: an equivalent of 'classFile', with the ASM specific instructions replaced with standard ones. replaceAsmInstructions(final byte[] a class file containing ASM specific instructions, generated by this ClassWriter. classFile, final boolean whether there is at least one stack map frames in 'classFile'. hasFrames) Returns the equivalent of the given class file, with the ASM specific instructions replaced with standard ones.
public byte[]	Returns: the binary content of the JVMS ClassFile structure that was built by this ClassWriter. toByteArray() Returns the content of the class file that was built by this ClassWriter.
public final void	visit(final int the class version. The minor version is stored in the 16 most significant bits, and the major version in the 16 least significant bits. version, final int the class's access flags (see `Opcodes`). This parameter also indicates if the class is deprecated `Opcodes#ACC_DEPRECATED` or a record `Opcodes#ACC_RECORD`. access, final String the internal name of the class (see `Type#getInternalName()`). name, final String the signature of this class. May be null if the class is not a generic one, and does not extend or implement generic classes or interfaces. signature, final String the internal of name of the super class (see `Type#getInternalName()`). For interfaces, the super class is `Object`. May be null, but only for the `Object` class. superName, final String[] the internal names of the class's interfaces (see `Type#getInternalName()`). May be null. interfaces) Overrides net.bytebuddy.jar.asm.ClassVisitor.visit. Visits the header of the class.
public final AnnotationVisitor	visitAnnotation(final String the class descriptor of the annotation class. descriptor, final boolean true if the annotation is visible at runtime. visible) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitAnnotation. Visits an annotation of the class.
public final void	visitAttribute(final Attribute an attribute. attribute) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitAttribute. Visits a non standard attribute of the class.
public final void	visitEnd() Overrides net.bytebuddy.jar.asm.ClassVisitor.visitEnd. Visits the end of the class.
public final FieldVisitor	visitField(final int the field's access flags (see `Opcodes`). This parameter also indicates if the field is synthetic and/or deprecated. access, final String the field's name. name, final String the field's descriptor (see `Type`). descriptor, final String the field's signature. May be null if the field's type does not use generic types. signature, final Object the field's initial value. This parameter, which may be null if the field does not have an initial value, must be an `Integer`, a `Float`, a `Long`, a `Double` or a `String` (for `int`, `float`, `long` or `String` fields respectively). This parameter is only used for static fields. Its value is ignored for non static fields, which must be initialized through bytecode instructions in constructors or methods. value) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitField. Visits a field of the class.
public final void	visitInnerClass(final String the internal name of C (see `Type#getInternalName()`). name, final String the internal name of the class or interface C is a member of (see `Type#getInternalName()`). Must be null if C is not the member of a class or interface (e.g. for local or anonymous classes). outerName, final String the (simple) name of C. Must be null for anonymous inner classes. innerName, final int the access flags of C originally declared in the source code from which this class was compiled. access) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitInnerClass. Visits information about an inner class.
public final MethodVisitor	visitMethod(final int the method's access flags (see `Opcodes`). This parameter also indicates if the method is synthetic and/or deprecated. access, final String the method's name. name, final String the method's descriptor (see `Type`). descriptor, final String the method's signature. May be null if the method parameters, return type and exceptions do not use generic types. signature, final String[] the internal names of the method's exception classes (see `Type#getInternalName()`). May be null. exceptions) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitMethod. Visits a method of the class.
public final ModuleVisitor	visitModule(final String the fully qualified name (using dots) of the module. name, final int the module access flags, among `ACC_OPEN`, `ACC_SYNTHETIC` and `ACC_MANDATED`. access, final String the module version, or null. version) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitModule. Visit the module corresponding to the class.
public final void	visitNestHost(final String the internal name of the host class of the nest (see `Type#getInternalName()`). nestHost) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitNestHost. Visits the nest host class of the class.
public final void	visitNestMember(final String the internal name of a nest member (see `Type#getInternalName()`). nestMember) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitNestMember. Visits a member of the nest.
public final void	visitOuterClass(final String internal name of the enclosing class of the class (see `Type#getInternalName()`). owner, final String the name of the method that contains the class, or null if the class is not enclosed in a method or constructor of its enclosing class (e.g. if it is enclosed in an instance initializer, static initializer, instance variable initializer, or class variable initializer). name, final String the descriptor of the method that contains the class, or null if the class is not enclosed in a method or constructor of its enclosing class (e.g. if it is enclosed in an instance initializer, static initializer, instance variable initializer, or class variable initializer). descriptor) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitOuterClass. Visits the enclosing class of the class.
public final void	visitPermittedSubclass(final String the internal name of a permitted subclass (see `Type#getInternalName()`). permittedSubclass) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitPermittedSubclass. Visits a permitted subclasses.
public final RecordComponentVisitor	visitRecordComponent(final String the record component name. name, final String the record component descriptor (see `Type`). descriptor, final String the record component signature. May be null if the record component type does not use generic types. signature) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitRecordComponent. Visits a record component of the class.
public final void	visitSource(final String the name of the source file from which the class was compiled. May be null. file, final String additional debug information to compute the correspondence between source and compiled elements of the class. May be null. debug) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitSource. Visits the source of the class.
public final AnnotationVisitor	visitTypeAnnotation(final int a reference to the annotated type. The sort of this type reference must be `TypeReference#CLASS_TYPE_PARAMETER`, `TypeReference#CLASS_TYPE_PARAMETER_BOUND` or `TypeReference#CLASS_EXTENDS`. See `TypeReference`. typeRef, final TypePath the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole. typePath, final String the class descriptor of the annotation class. descriptor, final boolean true if the annotation is visible at runtime. visible) Overrides net.bytebuddy.jar.asm.ClassVisitor.visitTypeAnnotation. Visits an annotation on a type in the class signature.

Inherited from net.bytebuddy.jar.asm.ClassVisitor:: getDelegate

public Class ClassWriter

Field Summary

Constructor Summary

Method Summary