Package ptolemy.data.expr

Class ExplicitScope

  • All Implemented Interfaces:
    ParserScope
    public class ExplicitScope
extends java.lang.Object
implements ParserScope
    An implementation of ParserScope that includes an explicit list of Variables in the scope.
    Since:
    Ptolemy II 2.1
    Version:
    $Id$
    Author:
    Steve Neuendorffer
    Pt.AcceptedRating:
    Red (liuxj)
    Pt.ProposedRating:
    Red (liuxj)

    • Constructor Summary

      Constructors 
      Constructor Description
      ExplicitScope​(NamedList list)
      Construct a new scope that includes the objects in the given list, which must contain only variables.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Token get​(java.lang.String name)
      Look up and return the value with the specified name in the scope.
      Type getType​(java.lang.String name)
      Look up and return the type of the value with the specified name in the scope.
      InequalityTerm getTypeTerm​(java.lang.String name)
      Look up and return the type term for the specified name in the scope.
      java.util.Set identifierSet()
      Return the list of variables within the scope.
      NamedList variableList()
      Return the list of variables in this scope.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ExplicitScope

        public ExplicitScope​(NamedList list)
        Construct a new scope that includes the objects in the given list, which must contain only variables.
        Parameters:
        list - The list of variables for the scope.

    • Method Detail

      • get

        public Token get​(java.lang.String name)
          throws IllegalActionException
        Look up and return the value with the specified name in the scope. Return null if the name is not defined in this scope.
        Specified by:
        get in interface ParserScope
        Parameters:
        name - The name of the variable to be looked up.
        Returns:
        The token associated with the given name in the scope.
        Throws:
        IllegalActionException - If a value in the scope exists with the given name, but cannot be evaluated.

      • getType

        public Type getType​(java.lang.String name)
             throws IllegalActionException
        Look up and return the type of the value with the specified name in the scope. Return null if the name is not defined in this scope.
        Specified by:
        getType in interface ParserScope
        Parameters:
        name - The name of the variable to be looked up.
        Returns:
        The token associated with the given name in the scope.
        Throws:
        IllegalActionException - If a value in the scope exists with the given name, but cannot be evaluated.

      • getTypeTerm

        public InequalityTerm getTypeTerm​(java.lang.String name)
                           throws IllegalActionException
        Look up and return the type term for the specified name in the scope. Return null if the name is not defined in this scope, or is a constant type.
        Specified by:
        getTypeTerm in interface ParserScope
        Parameters:
        name - The name of the variable to be looked up.
        Returns:
        The InequalityTerm associated with the given name in the scope.
        Throws:
        IllegalActionException - If a value in the scope exists with the given name, but cannot be evaluated.

      • identifierSet

        public java.util.Set identifierSet()
        Return the list of variables within the scope.
        Specified by:
        identifierSet in interface ParserScope
        Returns:
        The list of variables within the scope.

      • variableList

        public NamedList variableList()
        Return the list of variables in this scope.
        Returns:
        The list of variables in this scope.