Enum DefaultValue

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      DOUBLE
      The default value of a double.
      FLOAT
      The default value of a float.
      INTEGER
      The default value of a JVM integer which covers Java's int, boolean, byte, short and char values.
      LONG
      The default value of a long.
      REFERENCE
      The default value of a reference type which resembles the null reference.
      VOID
      The default value of a void which resembles a no-op manipulation.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private StackManipulation stackManipulation
      The stack manipulation that represents the loading of a given default value onto the operand stack.
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private DefaultValue​(StackManipulation stackManipulation)
      Creates a new default value load operation.
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      StackManipulation.Size apply​(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext)
      Applies the stack manipulation that is described by this instance.
      boolean isValid()
      Determines if this stack manipulation is valid.
      static StackManipulation of​(TypeDefinition typeDefinition)
      Creates a stack assignment that loads the default value for a given type.
      static DefaultValue valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static DefaultValue[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait
    • Enum Constant Detail

      • INTEGER

        public static final DefaultValue INTEGER
        The default value of a JVM integer which covers Java's int, boolean, byte, short and char values.
      • LONG

        public static final DefaultValue LONG
        The default value of a long.
      • FLOAT

        public static final DefaultValue FLOAT
        The default value of a float.
      • DOUBLE

        public static final DefaultValue DOUBLE
        The default value of a double.
      • VOID

        public static final DefaultValue VOID
        The default value of a void which resembles a no-op manipulation.
      • REFERENCE

        public static final DefaultValue REFERENCE
        The default value of a reference type which resembles the null reference.
    • Field Detail

      • stackManipulation

        private final StackManipulation stackManipulation
        The stack manipulation that represents the loading of a given default value onto the operand stack.
    • Constructor Detail

      • DefaultValue

        private DefaultValue​(StackManipulation stackManipulation)
        Creates a new default value load operation.
        Parameters:
        stackManipulation - The stack manipulation that represents the loading of a given default value onto the operand stack.
    • Method Detail

      • values

        public static DefaultValue[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
        for (DefaultValue c : DefaultValue.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static DefaultValue valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null
      • of

        public static StackManipulation of​(TypeDefinition typeDefinition)
        Creates a stack assignment that loads the default value for a given type.
        Parameters:
        typeDefinition - The type for which a default value should be loaded onto the operand stack.
        Returns:
        A stack manipulation loading the default value for the given type.
      • isValid

        public boolean isValid()
        Determines if this stack manipulation is valid.
        Specified by:
        isValid in interface StackManipulation
        Returns:
        If false, this manipulation cannot be applied and should throw an exception.
      • apply

        public StackManipulation.Size apply​(org.objectweb.asm.MethodVisitor methodVisitor,
                                            Implementation.Context implementationContext)
        Applies the stack manipulation that is described by this instance.
        Specified by:
        apply in interface StackManipulation
        Parameters:
        methodVisitor - The method visitor used to write the method implementation to.
        implementationContext - The context of the current implementation.
        Returns:
        The changes to the size of the operand stack that are implied by this stack manipulation.