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Encyclopedia > Dynamic Language Runtime
This article or section contains information about computer software currently in development.
The content may change as the software development progresses.
Dynamic Language Runtime
Developed by Microsoft Dynamic Language Runtime Team
OS Microsoft Windows
Platform .NET
Genre System platform
License Microsoft Public License

The Dynamic Language Runtime (DLR) from Microsoft is a ongoing effort to bring a set of services that run on top of the CLR and provides language services for several different dynamic languages. These services include: Image File history File links Gnome_globe_current_event. ... Software redirects here. ... Software development stages In computer programming, development stage terminology expresses how the development of a piece of software has progressed and how much further development it may require. ... Image File history File links Nuvola_apps_kpager. ... For other uses, see Software developer (disambiguation). ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... An operating system (OS) is the software that manages the sharing of the resources of a computer and provides programmers with an interface used to access those resources. ... In computing, a platform describes some sort of framework, either in hardware or software, which allows software to run. ... Microsoft . ... In computing, a platform describes some sort of framework, either in hardware or software, which allows software to run. ... A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ... Shared source is Microsoft’s framework for sharing computer program source code with individuals and organizations. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... The Common Language Runtime (CLR) is the virtual machine component of Microsofts . ...

The DLR will be used to implement dynamic languages like Python and Ruby on the .NET Framework. The DLR services are currently used in the developement versions of IronRuby, a .NET implementation of the Ruby language, and the upcoming IronPython 2.0.[1] Microsoft plans to use the DLR for the upcoming Visual Basic .NET 10.0 (VBx) and Managed JScript (ECMAScript 3.0). On computer science, a datatype (often simply type) is a name or label for a set of values and some operations which can be performed on that set of values. ... In computer science, dynamic dispatch is the process of mapping a message to a specific sequence of code (method) at runtime. ... Python is a high-level programming language first released by Guido van Rossum in 1991. ... Ruby is a reflective, dynamic, object-oriented programming language. ... The Microsoft . ... IronRuby is an implementation of the Ruby programming language targeting Microsoft . ... IronPython is an implementation of the Python programming language, targeting . ... Visual Basic . ... JScript is the Microsoft implementation of the ECMAScript scripting programming language specification. ... ECMAScript is a scripting programming language, standardized by Ecma International in the ECMA-262 specification. ...


By having several dynamic language implementation share a common underlying system, it should be easier to let these implementations interact with one another. For example, it should be possible to use libraries in any dynamic language in any other dynamic language. In addition, the hosting API allows interoperability with statically typed .NET languages like C#. . ... The title given to this article is incorrect due to technical limitations. ...

Contents

History

Microsoft's Dynamic Language Runtime project was announced by Microsoft at MIX 2007[1]. The DLR code currently lives in the IronPython repository. Microsoft plan to ship a first usable 1.0 version of the DLR at the same time as IronPython 2.0, by the end of 2008 [2]. MIX is a Microsoft conference held annually for web developers and designers at which Microsoft showcases new upcoming web technologies. ... IronPython is an implementation of the Python programming language, targeting . ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ...


Architecture

The Dynamic Language Runtime is built on the idea that it is possible to implement language specificities on top of a generic language-agnostic abstract syntax tree, whose nodes correspond to a specific functionality that is common to many dynamic languages.[3] This architecture is backed by the idea that the number of elementary language constructs that would have to be implemented on the generic stack should be inherently limited.[4] The DLR dynamically generates code corresponding to the functionality expressed by these nodes. The compiler for any dynamic language implemented on top of the DLR has to generate DLR abstract trees, and hand it over to the DLR libraries. In computer science, an abstract syntax tree (AST) is a finite, labeled, directed tree, where the internal nodes are labeled by operators, and the leaf nodes represent the operands of the node operators. ... . ...


The DLR provides dynamically-updated DynamicSite objects that caches the task of binding methods to objects. Since in dynamic languages, the type of an object, as well as the members it contain, can change during a program lifetime, a method invocation must search through the method list to see if the invocation is a valid one. DynamicSite objects represent and cache the state of the object and its methods; any update to the object is reflected in the DynamicSite objects as well. DLR routes all method invocations via the DynamicSite objects, which then performs a fast lookup and binding of the method with the actual implementation.[5] In computer science, binding refers to the creation of a simple reference to something which is larger and more complicated and used frequently. ...


In contrast to other efforts like Da Vinci Machine (which aim to add support for dynamic languages in the core of the Java Virtual Machine (thus planning to add new bytecodes in the JVM instruction set, and new JVM capabilities), the DLR is built on top of the existing Common Language Runtime, the .NET Framework virtual machine[6]. Dynamic programming language is a term used broadly in computer science to describe a class of high level programming languages that execute at runtime many common behaviors that other languages might perform during compilation, if at all. ... A Java Virtual Machine (JVM) is a set of computer software programs and data structures which implements a specific virtual machine model. ... Java bytecode is the form of instructions that the Java virtual machine executes. ... The Common Language Runtime (CLR) is the virtual machine component of Microsofts . ... The Microsoft . ...


See also

The Java platform is the name for a bundle of related programs, or platform, from Sun Microsystems which allow for developing and running programs written in the Java programming language. ... A Java Virtual Machine (JVM) is a set of computer software programs and data structures which implements a specific virtual machine model. ...

References

  1. ^ a b Hugunin, Jim. A Dynamic Language Runtime (DLR). Retrieved on 2007-06-21. “For the short term, our focus is on using a small number of languages to drive the first wave of DLR development where we can work closely and face-to-face with the developers in order to iron out the worst kinks in the DLR design. After this initial phase, we want to reach out to the broader language community.”
  2. ^ Viehland, Dino (2008-15-01). Roadmap for IronPython 2.0. Retrieved on 2008-02-09. “We don't really have a document like this but the general goal is to ship IronPython 2.0 by the end of the year. For the DLR its self the plan is to ship a v1.0 around the same time as IronPython 2.0.”
  3. ^ Hugunin, Jim (2007-05-15). DLR Trees (Part 1). Retrieved on 2008-02-23. “The key implementation trick in the DLR is using these kinds of trees to pass code around as data and to keep code in an easily analyzable and mutable form as long as possible.”
  4. ^ Nutter, Charles (2008-01-28). Lang.NET 2008: Day 1 Thoughts. Retrieved on 2008-02-23. “The idea is that there's a quickly-flattening asymptotic curve to the number of expression tree nodes required to implement each new language. Whether that's the case is yet to be seen.”
  5. ^ Bill Chiles. CLR Inside Out: IronPython and the Dynamic Language Runtime. MSDN Magazine. Retrieved on 2007-08-10.
  6. ^ Rose, John (2008-02-02). Bravo for the dynamic runtime!. Retrieved on 2008-02-23. “The differences between the CLR and JVM extensions are interesting to note. They work completely above the level of the CLR without significantly enhancing it, while we are developing the JVM and libraries at the same time.”
  • MIX 07 - Silverlight shines brighter!. Retrieved on 2007-04-30.
  • MIX 07 Video Presentation - DEV02 - Just Glue It! Ruby and the DLR in Silverlight. Retrieved on 2007-05-04.
  • "Jim Hugunin's Thinking Dynamic. Retrieved on 2008-02-06.
v • d • e
.NET Framework
Architecture Base Class Library · Common Language Runtime · Code Access Security · Assembly · Metadata
Common Language
Infrastructure (CLI)		 Common Language Infrastructure (CLI) · Common Type System · Common Intermediate Language · Virtual Execution System
CLI Languages
Common1
 C# · Visual Basic .NET · C++/CLI (Managed) · J# · JScript .NET
Other2
 A# · Boo · Chrome  · F#  · IronLisp · IronPython · IronRuby · Nemerle · Phalanger · Windows PowerShell
Managed code
frameworks		 Presentation · Communication · Workflow
Components ADO.NET (Entity Framework · Data Services) · ASP.NET (State management · AJAX · MVC · Dynamic Data) · Remoting · Language Integrated Query · Windows CardSpace · Windows Forms · XAML · ClickOnce · Dynamic Language Runtime · Parallel FX Library (PLINQ · TPL)
Other implementations Mono · Compact Framework (Xbox 360) · Micro Framework · Portable.NET · Silverlight · SSCLI
Comparisons C# and Java · C# and Visual Basic .NET · Java and .NET platforms
Upcoming "Acropolis" · "Jasper"
1 Languages that are or have been included with Visual Studio.
2 Non-academic or research languages with relatively large user-bases.
Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 172nd day of the year (173rd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 40th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 135th day of the year (136th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 54th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 28th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 54th day of the year in the Gregorian calendar. ... The Microsoft Developer Network (MSDN) is an information service from Microsoft for software developers. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 222nd day of the year (223rd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 33rd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 54th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 120th day of the year (121st in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 124th day of the year (125th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 37th day of the year in the Gregorian calendar. ... The Microsoft . ... The software architecture of a program or computing system is the structure or structures of the system, which comprise software elements, the externally visible properties of those elements, and the relationships between them. ... The Base Class Library (BCL) is a library of types and functionalities available to all languages using the . ... The Common Language Runtime (CLR) is the virtual machine component of Microsofts . ... Code access security, in the Microsoft . ... In the Microsoft . ... . ... Visual overview of the Common Language Infrastructure (CLI) The Common Language Infrastructure (CLI) is an open specification developed by Microsoft that describes the executable code and runtime environment that form the core of the Microsoft . ... Visual overview of the Common Language Infrastructure (CLI) The Common Language Infrastructure (CLI) is an open specification developed by Microsoft that describes the executable code and runtime environment that form the core of the Microsoft . ... The Common Type System (CTS) is used by every language built on the . ... Common Intermediate Language (CIL, pronounced either sill or kill) (formerly called Microsoft Intermediate Language or MSIL) is the lowest-level human-readable programming language in the Common Language Infrastructure and in the . ... The Virtual Execution System(VES) provides an environment for executing managed code. ... // CLI Languages are computer programming languages that are used to produce libraries and programs that conform to the Common Language Infrastructure specifications. ... The title given to this article is incorrect due to technical limitations. ... Visual Basic . ... C++/CLI (Common Language Infrastructure) is the newer language specification due to supersede Managed Extensions for C++. Completely reviewed to simplify the older Managed C++ syntax, it provides much more clarity over code readability than Managed C++. C++/CLI is standardized by ECMA. It is currently only available on Visual... It has been suggested that this article or section be merged with Managed C Plus Plus. ... The J# (pronounced J-sharp) programming language is a transitional language for programmers of Suns Java and Microsofts J++ languages, so they may use their existing knowledge, and applications on Microsofts . ... JScript . ... A# is a port of the Ada programming language to the Microsoft . ... Boo is an object oriented, statically typed programming language developed starting in 2003, which seeks to make use of the Common Language Infrastructure support for Unicode, internationalization and web style applications, while using a Python-inspired syntax and a special focus on language and compiler extensibility. ... Chrome is a programming language for the Common Language Infrastructure developed by RemObjects Software. ... IronLisp is an implementation of the Lisp programming language targeting Microsoft . ... IronPython is an implementation of the Python programming language, targeting . ... IronRuby is an implementation of the Ruby programming language targeting Microsoft . ... Nemerle is a high-level statically-typed programming language for the . ... This article is being considered for deletion in accordance with Wikipedias deletion policy. ... Windows PowerShell is an administration focused extensible command line interface (CLI) shell and scripting language product developed by Microsoft. ... In Microsoft Windows terminology, managed code is computer instructions — that is, code — executed by a CLI-compliant virtual machine, such as Microsofts . ... A software framework is a reusable design for a software system (or subsystem). ... This subsystem is a part of . ... This subsystem is a part of . ... This subsystem is a part of . ... It has been suggested that this article or section be merged with Software componentry. ... ADO.NET is a set of computer software components that can be used by programmers to access data and data services. ... The ADO.NET Entity Framework, part of ADO.NET components of the . ... ASP.NET logo ASP.NET is a web application framework marketed by Microsoft that programmers can use to build dynamic web sites, web applications and XML web services. ... ASP.NET applications are hosted in a web server and are accessed over the stateless HTTP protocol. ... ASP.NET AJAX, formerly code-named Atlas, is a set of extensions to ASP.NET developed by Microsoft for implementing Ajax functionality. ... The ASP.NET MVC Framework is a Model-view-controller framework which Microsoft is adding to ASP.NET. It allows an application to be built as a composition of three roles: Model, View and Controller. ... . ... Language intergrated query (LINQ) is a Microsoft project that aims to add a native querying syntax to C# and VB.Net. ... The Windows Cardspace UI This subsystem is a part of . ... This API is a part of . ... Extensible Application Markup Language (XAML, pronounced zammel ()) by Microsoft is a declarative XML-based language used to initialize structured values and objects. ... Deployment of a ClickOnce application ClickOnce is a Microsoft technology for deploying Windows Forms or Windows Presentation Foundation-based software, also called Smart clients. ... Parallel FX Library (PFX) is a managed concurrency library being developed by a collaboration between Microsoft Research and the CLR team at Microsoft for inclusion with a future revision of the . ... Parallel FX Library (PFX) is a managed concurrency library being developed by a collaboration between Microsoft Research and the CLR team at Microsoft for inclusion with a future revision of the . ... Task Parallel Library (TPL, also referred to as Parallel FX Library) is a managed concurrency library being developed by a collaboration between Microsoft Research and the CLR team at Microsoft for inclusion with a future revision of the . ... Mono is a project led by Novell (formerly by Ximian) to create an Ecma standard compliant . ... The Microsoft . ... The Microsoft . ... . ... DotGNU Portable . ... Microsoft Silverlight is a browser plugin that allows web applications to be developed with features like animation, vector graphics, and audio-video playback - features that characterize a rich internet application. ... The Shared Source Common Language Infrastructure (SSCLI), previously codenamed Rotor, is Microsofts shared source implementation of the CLI, the core of . ... This is a comparison of the C# programming language with the Java programming language. ... The original . ... This is a comparison of the . ... Microsoft Codename Acropolis, available as a release, is a set of tools and components that can be used to build . ... Microsoft Codename Jasper is an ADO.NET incubation project being developed by Microsoft which aims for simpler integration between the data access layer and the presentation layer in an application. ... Microsoft Visual Studio is Microsofts flagship software development product for computer programmers. ...


 

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