Class Counter

java.lang.Object
visitor.Visitor
visitor.Counter
public class Counter extends Visitor
Counter is a visitor that counts the numbers, operations, and depth in an arithmetic expression.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Counter()
    Default constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    getDepth()
    Gets the depth.
    int
    getNbNbs()
    Gets the number of numbers.
    int
    getNbOps()
    Gets the number of operations.
    void
    visit(Complex c)
    The Visitor can traverse a Complex number (a subtype of Expression)
    void
    visit(IntegerAtom i)
    The Visitor can traverse an Integer (a subtype of Expression)
    void
    visit(Rationnal q)
    The Visitor can traverse a Rationnal number (a subtype of Expression)
    void
    visit(Real r)
    The Visitor can traverse a Real number (a subtype of Expression)
    void
    visit(BinaryFunction f)
    The Visitor can traverse a binary function (a subtype of Expression)
    void
    visit(UnaryFunction o)
    The Visitor can traverse an unary function (a subtype of Expression)
    void
    visit(Operation o)
    Visit an operation: increments the operation count, then recursively visits all child expressions to accumulate counts.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Counter

      public Counter()
      Default constructor.

  • Method Details

    • visit

      public void visit(Real r)
      Description copied from class: Visitor
      The Visitor can traverse a Real number (a subtype of Expression)
      Specified by:
      visit in class Visitor
      Parameters:
      r - The Real number being visited

    • visit

      public void visit(IntegerAtom i)
      Description copied from class: Visitor
      The Visitor can traverse an Integer (a subtype of Expression)
      Specified by:
      visit in class Visitor
      Parameters:
      i - The operation being visited

    • visit

      public void visit(Complex c)
      Description copied from class: Visitor
      The Visitor can traverse a Complex number (a subtype of Expression)
      Specified by:
      visit in class Visitor
      Parameters:
      c - The Real number being visited

    • visit

      public void visit(Rationnal q)
      Description copied from class: Visitor
      The Visitor can traverse a Rationnal number (a subtype of Expression)
      Specified by:
      visit in class Visitor
      Parameters:
      q - The Real number being visited

    • visit

      public void visit(Operation o)
      Visit an operation: increments the operation count, then recursively visits all child expressions to accumulate counts.
      Specified by:
      visit in class Visitor
      Parameters:
      o - The operation being visited

    • visit

      public void visit(UnaryFunction o)
      Description copied from class: Visitor
      The Visitor can traverse an unary function (a subtype of Expression)
      Specified by:
      visit in class Visitor
      Parameters:
      o - The unary function being visited

    • visit

      public void visit(BinaryFunction f)
      Description copied from class: Visitor
      The Visitor can traverse a binary function (a subtype of Expression)
      Specified by:
      visit in class Visitor
      Parameters:
      f - The binary function being visited

    • getNbOps

      public int getNbOps()
      Gets the number of operations.
      Returns:
      The number of operations in the expression

    • getNbNbs

      public int getNbNbs()
      Gets the number of numbers.
      Returns:
      The number of numbers in the expression

    • getDepth

      public int getDepth()
      Gets the depth.
      Returns:
      The depth (0 for a number, 1 for a simple operation, etc.)