CLS Compliance in PowerBuilder

PowerScript is compliant with Common Language Specification (CLS) rules and restrictions.

The CLS ensures that components developed in one language can be fully accessible to any other .NET language. It describes a set of commonly used features that serve as the minimum language requirement for any .NET language.

With PowerBuilder .NET, you can create extensions to other CLS-compliant languages and deploy components that can be consumed by any CLS-compliant application.

• CLS Roles
  The Common Language Specification (CLS) defines three roles for CLS-compliant applications: framework, consumer, and extender.
• PowerBuilder Array Enhancements
  PowerBuilder 12 introduces several array enhancements to the PowerScript language in support of its evolution as a CLS-compliant language.
• BitRight and BitLeft Operator Support
  PowerBuilder 12 includes support for bitwise right-shift and left-shift operators.
• Inheritance from .NET System.Object
  In PowerBuilder 12.5, the .NET System.Object type is the ancestor type of the PowerObject datatype.
• Declaring a Namespace
  You can specify a namespace for these PowerBuilder objects: custom and standard class objects, custom, standard, and external visual objects, windows, menus, structures, functions, interfaces, and enumerations.
• Defining an Interface
  An interface specifies the members of a class that must be supplied by any class that implements the interface. In PowerBuilder .NET, you can create interfaces from the New dialog box.
• Inheriting from a .NET Class
  You can create a nonvisual user object that inherits from a .NET class in the same way that you create an object, visual or nonvisual, that inherits from a PowerBuilder object.
• Adding a Parameterized Constructor
  In PowerBuilder .NET, you can define parameterized constructor events that overload the default constructor event, and instantiate the object with the arguments that you assign in the overriding event prototypes.
• Defining .NET Properties
  .NET properties get or set a specific data value of an object, and allow you to process that value while enabling the actual member instance to remain private.
• Defining Indexers
  Indexers get or set values stored in an object. They are similar to .NET properties, except that they take parameters, and can be overloaded.
• Creating a Global User-Defined Enumeration
  In PowerBuilder .NET, you can create global enumerations in the Enumeration painter or in a script.
• Creating a Local User-Defined Enumeration
  In PowerBuilder .NET, you can create local enumerations for an object in an Enumeration painter that you open from the object painter.
• Consuming a .NET Delegate
  In PowerBuilder .NET, you can invoke .NET delegates from PowerScript code. Delegates allow you to treat functions as entities that can be assigned to variables and passed as parameters.
• Syntax for Consuming Generic Classes
  Generics are classes, structures, interfaces, and methods with placeholders for the datatypes that they store or use.
• Using an Enumerator to Traverse a .NET Collection
  Use an enumerator to traverse the contents of a .NET collection.
• Enhancements to .NET Component Projects
  When you generate .NET assembly components from PowerBuilder .NET projects, you can take advantage of CLS-compliant features of PowerBuilder .NET that are not available in PowerBuilder Classic.