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![compiler back-end on CLR Syntax Tree Return Add Named(a) Const(2) Generate IL ldc.i4.2 // load 2 box [mscorlib]System.Int32 ldarg.0 // load “a” call object LangHelpers::Add(object, object) ret IL public static object Add (object x, object y) { ... } Runtime Library](https://image.slidesharecdn.com/wpi20081124-1228297218299116-8/75/jimmy-hacking-at-Microsoft-33-2048.jpg)
![two ways to call def yo (name): "hello " + name print yo("jimmy") MethodCallExpression Method : {RuntimeMethodInfo {Name: "Print"}} Arguments : [0] ActionExpression ActionExpression yo("jimmy") Action : CallAction Arguments : [0] {BoundExpression {Variable: Local{yo}}} [1] {ConstantExpression {"jimmy"}}](https://image.slidesharecdn.com/wpi20081124-1228297218299116-8/75/jimmy-hacking-at-Microsoft-35-2048.jpg)
![public static object Handle ( object[] args, DynamicSite<object, object, object> site1, object obj1, object obj2) { if (obj1 != null && obj1.GetType() == typeof(string) && obj2 != null && obj2.GetType() == typeof(string)) { return StringOps.Add(Converter.ConvertToString(obj1), Converter.ConvertToString(obj2)); } return site1.UpdateBindingAndInvoke(obj1, obj2); }](https://image.slidesharecdn.com/wpi20081124-1228297218299116-8/75/jimmy-hacking-at-Microsoft-36-2048.jpg)
![public static object Handle ( object[] args, DynamicSite<object, object, object> site1, object obj1, object obj2) { if (obj1 != null && obj1.GetType() == typeof(int) && obj2 != null && obj2.GetType() == typeof(int)) { return Int32Ops.Add(Converter.ConvertToInt(obj1), Converter.ConvertToInt(obj2)); } if (obj1 != null && obj1.GetType() == typeof(string) && obj2 != null && obj2.GetType() == typeof(string)) { return StringOps.Add(Converter.ConvertToString(obj1), Converter.ConvertToString(obj2)); } return site1.UpdateBindingAndInvoke(obj1, obj2); }](https://image.slidesharecdn.com/wpi20081124-1228297218299116-8/75/jimmy-hacking-at-Microsoft-37-2048.jpg)
Uploaded byJimmy Schementi
jimmy hacking (at) Microsoft
The document discusses open source programming languages and the Dynamic Language Runtime (DLR), noting that the DLR allows hosting "eval" of any language in any language and makes it possible to write a programming language without building a compiler. It also promotes several open source projects related to dynamic languages like IronPython, IronRuby, and the DLR itself. Examples are given of embedding dynamic languages in applications and using REPL environments.
jimmy hacking (at) Microsoft
- 1. jimmy hacking (at)microsoft wpi | flaud | 2008-11-24 open source programming languages
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- 18. Jimmy, show LogoDemo!
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- 25. Terminology Java Language C# Java Platform .NET Platform (CLR) Flash + Java applets + JavaFX Silverlight
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- 29. CLR great fordynamic languages But requires a lot of work
- 30. DLR Dynamic LanguageRuntime
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- 32. compiler front-end returnSyntax Tree Return def add2(a) { return 2 + a; } Scan 2 + a ; Parse Token stream Add Named(a) Const(2)
- 33. compiler back-end onCLR Syntax Tree Return Add Named(a) Const(2) Generate IL ldc.i4.2 // load 2 box [mscorlib]System.Int32 ldarg.0 // load “a” call object LangHelpers::Add(object, object) ret IL public static object Add (object x, object y) { ... } Runtime Library
- 34. compiler back-end onDLR Syntax Tree Return Add Named(a) Const(2) Generate DLR Tree DLR Tree Return MethodCall LangHelpers.Add BoundExpression ConstantExpression 2 ConvertTo Object Variable a: Object
- 35. two ways tocall def yo (name): "hello " + name print yo("jimmy") MethodCallExpression Method : {RuntimeMethodInfo {Name: "Print"}} Arguments : [0] ActionExpression ActionExpression yo("jimmy") Action : CallAction Arguments : [0] {BoundExpression {Variable: Local{yo}}} [1] {ConstantExpression {"jimmy"}}
- 36. public static objectHandle ( object[] args, DynamicSite<object, object, object> site1, object obj1, object obj2) { if (obj1 != null && obj1.GetType() == typeof(string) && obj2 != null && obj2.GetType() == typeof(string)) { return StringOps.Add(Converter.ConvertToString(obj1), Converter.ConvertToString(obj2)); } return site1.UpdateBindingAndInvoke(obj1, obj2); }
- 37. public static objectHandle ( object[] args, DynamicSite<object, object, object> site1, object obj1, object obj2) { if (obj1 != null && obj1.GetType() == typeof(int) && obj2 != null && obj2.GetType() == typeof(int)) { return Int32Ops.Add(Converter.ConvertToInt(obj1), Converter.ConvertToInt(obj2)); } if (obj1 != null && obj1.GetType() == typeof(string) && obj2 != null && obj2.GetType() == typeof(string)) { return StringOps.Add(Converter.ConvertToString(obj1), Converter.ConvertToString(obj2)); } return site1.UpdateBindingAndInvoke(obj1, obj2); }
- 38. Hosting "eval" ofany language, in any language
- 39. Auto Completion StaticLanguage: Easy
- 40. Auto Completion DynamicLanguage: Holy Crap class Foo def bar end end Foo .class_eval do def baz end end f = Foo.new class << f def bang end end f. WTF?
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- 42. Lisp Read EvalPrint
- 43. r ead e val p rint l oop
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- 49. Jimmy, show RubyDemo!
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- 56. rails + silverlight demo
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- 59. http://silverlight.net http://codeplex.com/sdlsdk http://github.com/jschementi/agdlrhttp://codeplex.com/ironpython http://ironruby.net http://codeplex.com/dlr
- 60. Recap Silverlight letsyou do crazy things with Ruby/Python REPLs are awesome Ruby is crazy DLR: Write a language without the compiler Open source rocks
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