Record Class Paren

java.lang.Object
java.lang.Record
Paren
All Implemented Interfaces:
Expr
public record Paren(Expr e) extends Record implements Expr
Our internal representation of a Paren in the OG0 language. See http://www.radford.edu/itec380/2024fall-ibarland/Homeworks/Project/

  • Field Details

  • Constructor Details

    • Paren

      public Paren(Expr e)
      Creates an instance of a Paren record class.
      Parameters:
      e - the value for the e record component

  • Method Details

    • toString

      public String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in interface Expr
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • parse

      public static Paren parse(Scanner s, String punctuation)
      “@Override” Expr.parse(java.lang.String)

    • eval

      public Value eval()
      Description copied from interface: Expr
      Evaluate a given Expr.
      Specified by:
      eval in interface Expr
      Returns:
      the Value this Expr evaluates to. (In OG0, all values are numbers (doubles), but in OG3 that will change, which is why we have pre-emptively made the return type 'Value'.)

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • e

      public Expr e()
      Returns the value of the e record component.
      Returns:
      the value of the e record component