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Dynamic Language Runtime

The DLR (Dynamic Language Runtime) is a runtime environment that adds a set of services for dynamic languages to the common language runtime (CLR). The DLR makes it easier to develop dynamic languages to run on the .NET Framework and to add dynamic features to statically typed languages (such as C# and Visual Basic).
The CLR always had dynamic capabilities. You could always use reflection, but its main goal was never to be a dynamic programming environment and there were some features missing. The DLR is built on top of the CLR and adds those missing features to the .NET platform.

Advantages of DLR:

  • Simplifies Porting Dynamic Languages to the .NET Framework
  • Enables Dynamic Features in Statically Typed Languages - Existing .NET Framework languages such as C# and Visual Basic can create dynamic objects and use them together with statically typed objects.
  • Provides Future Benefits of the DLR and .NET Framework
  • Enables Sharing of Libraries and Objects
  • Provides Fast Dynamic Dispatch and Invocation
Examples of dynamic languages are Lisp, Smalltalk, JavaScript, PHP, Ruby, Python, ColdFusion, Lua, Cobra, and Groovy.

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