Method Detail

• @Deprecated public static boolean box(org.objectweb.asm.MethodVisitor mv, ClassNode type)

  box top level operand

• @Deprecated public static boolean box(org.objectweb.asm.MethodVisitor mv, Class type)

  Generates the bytecode to autobox the current value on the stack

• public static void doCast(org.objectweb.asm.MethodVisitor mv, ClassNode type)

• public static void doCast(org.objectweb.asm.MethodVisitor mv, Class type)

• public static void doCastToPrimitive(org.objectweb.asm.MethodVisitor mv, ClassNode sourceType, ClassNode targetType)

  Given a wrapped number type (Byte, Integer, Short, ...), generates bytecode to convert it to a primitive number (int, long, double) using calls to wrapped.[targetType]Value()

  Parameters:

  mv - method visitor

  sourceType - the wrapped number type

  targetType - the primitive target type

• public static void doCastToWrappedType(org.objectweb.asm.MethodVisitor mv, ClassNode sourceType, ClassNode targetType)

  Given a primitive number type (byte, integer, short, ...), generates bytecode to convert it to a wrapped number (Integer, Long, Double) using calls to [WrappedType].valueOf

  Parameters:

  mv - method visitor

  sourceType - the primitive number type

  targetType - the wrapped target type

• public static void doReturn(org.objectweb.asm.MethodVisitor mv, ClassNode returnType)

• public static String formatNameForClassLoading(String name)

  load a message on the stack and remove it right away. Good for put a mark in the generated bytecode for debugging purpose.

  Parameters:

  msg

• public static String getClassInternalName(ClassNode t)

• public static String getClassInternalName(Class t)

• public static String getClassInternalName(String name)

  Returns:

  the ASM internal name of the type

• public static String[] getClassInternalNames(ClassNode[] names)

  Returns:

  an array of ASM internal names of the type

• public static String getClassLoadingTypeDescription(ClassNode c)

  array types are special: eg.: String[]: classname: [Ljava.lang.String; Object: classname: java.lang.Object int[] : classname: [I unlike getTypeDescription '.' is not replaced by '/'. it seems that makes problems for the class loading if '.' is replaced by '/'

  Returns:

  the ASM type description for class loading

• public static String getGenericsBounds(ClassNode type)

• public static String getGenericsMethodSignature(MethodNode node)

• public static String getGenericsSignature(ClassNode node)

• public static String getMethodDescriptor(ClassNode returnType, Parameter[] parameters)

• public static String getMethodDescriptor(MethodNode methodNode)

  Returns a method descriptor for the given MethodNode.

  Parameters:

  methodNode - the method node for which to create the descriptor

  Returns:

  a method descriptor as defined in section JVMS section 4.3.3

• public static String getMethodDescriptor(Class returnType, Class[] paramTypes)

  Returns:

  the ASM method type descriptor

• public static String getTypeDescription(Class c)

• public static String getTypeDescription(ClassNode c)

  array types are special: eg.: String[]: classname: [Ljava/lang/String; int[]: [I

  Returns:

  the ASM type description

• public static int hashCode(String str)

  Computes a hash code for a string. The purpose of this hashcode is to be constant independently of the JDK being used.

  Parameters:

  str - the string for which to compute the hashcode

  Returns:

  hashcode of the string

• public static boolean isClassLiteralPossible(ClassNode classNode)

  Tells if a class node is candidate for class literal bytecode optimization. If so, bytecode may use LDC instructions instead of static constant Class fields to retrieve class literals.

  Parameters:

  classNode - the classnode for which we want to know if bytecode optimization is possible

  Returns:

  true if the bytecode can be optimized

• public static boolean isSameCompilationUnit(ClassNode a, ClassNode b)

  Returns true if the two classes share the same compilation unit.

  Parameters:

  a - class a

  b - class b

  Returns:

  true if both classes share the same compilation unit

• public static void load(org.objectweb.asm.MethodVisitor mv, ClassNode type, int idx)

• public static void negateBoolean(org.objectweb.asm.MethodVisitor mv)

  negate a boolean on stack. true->false, false->true

• public static void pushConstant(org.objectweb.asm.MethodVisitor mv, int value)

• public static void unbox(org.objectweb.asm.MethodVisitor mv, Class type)

  Generates the bytecode to unbox the current value on the stack

• public static void unbox(org.objectweb.asm.MethodVisitor mv, ClassNode type)

• public static void visitClassLiteral(org.objectweb.asm.MethodVisitor mv, ClassNode classNode)

  Visits a class literal. If the type of the classnode is a primitive type, the generated bytecode will be a GETSTATIC Integer.TYPE. If the classnode is not a primitive type, we will generate a LDC instruction.