Enum DoubleConstant

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      ONE
      A double constant of value 1.0.
      ZERO
      A double constant of value 0.0.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int opcode
      The shortcut opcode for loading a double constant.
      private static StackManipulation.Size SIZE
      The size impact of loading a double constant onto the operand stack.
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private DoubleConstant​(int opcode)
      Creates a new shortcut operation for loading a common double onto the operand stack.
    • 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.
      static StackManipulation forValue​(double value)
      Creates a stack manipulation for loading a double value onto the operand stack.
      boolean isValid()
      Determines if this stack manipulation is valid.
      static DoubleConstant valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static DoubleConstant[] 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

      • ZERO

        public static final DoubleConstant ZERO
        A double constant of value 0.0.
      • ONE

        public static final DoubleConstant ONE
        A double constant of value 1.0.
    • Field Detail

      • SIZE

        private static final StackManipulation.Size SIZE
        The size impact of loading a double constant onto the operand stack.
      • opcode

        private final int opcode
        The shortcut opcode for loading a double constant.
    • Constructor Detail

      • DoubleConstant

        private DoubleConstant​(int opcode)
        Creates a new shortcut operation for loading a common double onto the operand stack.
        Parameters:
        opcode - The shortcut opcode for loading a double constant.
    • Method Detail

      • values

        public static DoubleConstant[] 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 (DoubleConstant c : DoubleConstant.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static DoubleConstant 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
      • forValue

        public static StackManipulation forValue​(double value)
        Creates a stack manipulation for loading a double value onto the operand stack.

         

        This is achieved either by invoking a specific opcode, if any, or by creating a constant pool entry.
        Parameters:
        value - The double value to load onto the stack.
        Returns:
        A stack manipulation for loading the given double value.
      • 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.