Using the Meta-Environment for Model-Driven Engineering

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Using the Meta-Environment for Model-Driven Engineering. Tijs van der Storm. ESUG 2008, Amsterdam

Tecnología

Using the Meta-Environment
for Model-Driven Engineering
Tijs van der Storm, Ph.D.
Centrum voor Wiskunde en Informatica
storm@cwi.nl
http://homepages.cwi.nl/~storm

26th August 2008 Using the Meta-Environment for MDE 2
Introduction
 Me: Tijs van der Storm
 Researcher (CWI) / teacher (UvA)
 Interests:
 Software evolution
 Programming languages
 Today:
 Using the Meta-Environment...
 for Model Driven Engineering (MDE)

26th August 2008 Using the Meta-Environment for MDE 3
The Meta-Environment
a programming environment for languages

26th August 2008 Using the Meta-Environment for MDE 4
ASF+SDF Meta-Environment
ASF+SDF
ASF: Algebraic Specification Formalism
SDF: Syntax Definition Formalism

26th August 2008 Using the Meta-Environment for MDE 5
Introducing the Meta-
Environment
...in counterpoint with Smalltalk

26th August 2008 Using the Meta-Environment for MDE 6
Smalltalk
Everything is an object

26th August 2008 Using the Meta-Environment for MDE 7
ASF+SDF Meta-Environment
Everything is (parsed) “source code”
(also called “terms”)

26th August 2008 Using the Meta-Environment for MDE 8
Terms are trees
 ...parse trees
 ASTs with layout

26th August 2008 Using the Meta-Environment for MDE 9
Smalltalk
Every object has a class

26th August 2008 Using the Meta-Environment for MDE 10
ASF+SDF Meta-Environment
All source code has syntax
(defined by context-free grammars)

26th August 2008 Using the Meta-Environment for MDE 11
SDF: Syntax Definition
Formalism
 Similar to EBNF
 Modular
 Arbitrary CFGs
 GLR parsing
 Scannerless
 Disambiguation

26th August 2008 Using the Meta-Environment for MDE 12
Smalltalk
All computation occurs through messages

26th August 2008 Using the Meta-Environment for MDE 13
ASF+SDF Meta-Environment
All computation is transformation
(described using rewrite rules)

26th August 2008 Using the Meta-Environment for MDE 14
ASF: Algebraic Specification
Formalism
 Concrete syntax
 Match
 Construct
 Term rewriting
 Purely functional
 Automatic traversal
 traversal functions
x + 0 = x
x * 1 = x
x * (y + z) =
x * y + x * z
if !x then S1 else S2 =
if x then S2 else S1
compile(while x do S) =
LOOP:
load x;
jz END;
compile(S);
jmp LOOP;
END:

26th August 2008 Using the Meta-Environment for MDE 15
Smalltalk
The language = the environment

26th August 2008 Using the Meta-Environment for MDE 16
ASF+SDF Meta-Environment
Languages are environment contracts
(environment knows about some languages)

26th August 2008 Using the Meta-Environment for MDE 17
Integration in the environment
 Little languages
 Errors
 Facts
 Formatting
 ...
 Easily extended
 Define a language
 + GUI plugin

26th August 2008 Using the Meta-Environment for MDE 18
ASF+SDF Meta-Environment
What does it have to do with MDE?

26th August 2008 Using the Meta-Environment for MDE 19
What is MDE anyway?
OMeta
Magritte
Fame
MBA Smalltalk

26th August 2008 Using the Meta-Environment for MDE 20
Model driven engineering
 Domain specific notations
 graphical
 textual
 Transformation
 code generation
 model-to-model
 “compilation”

26th August 2008 Using the Meta-Environment for MDE 21
MDE & the Meta-Environment
MetaModel
Model
System
represented by
conforms to
Meta
MetaModel Grammar
Source code
System
Grammar of
Grammars
Adapted from: Jean Bézivin, On the Unification Power of Models, UML 2003

26th August 2008 Using the Meta-Environment for MDE 22
A little language for Markup
M
arkaby
programmatic HTML

26th August 2008 Using the Meta-Environment for MDE 23
A simple example

26th August 2008 Using the Meta-Environment for MDE 24
Recursive menus

26th August 2008 Using the Meta-Environment for MDE 25
Waebric tool architecture
Waebric
grammar
Evaluator
Compiler
Formatter
Importer Checker
XML
grammar
Java
grammar
Fact
extractor
XML
formatter
= dependency

26th August 2008 Using the Meta-Environment for MDE 26
Demo

26th August 2008 Using the Meta-Environment for MDE 27
Results: Source Lines of Code
Component SDF ASF Total SLOC
Java grammar 1583 0 1583
XML grammar (w/o DTDs) 109 0 109
248 0 248
Evaluator 348 685 1033
Compiler 277 611 888
Import resolver 106 87 193
Checker 131 174 305
Fact extractor 84 119 203
129 43 172
XHTML formatter 50 100 150
3065 1819 4884
Waebric grammar
Waebric formatter

26th August 2008 Using the Meta-Environment for MDE 28
Summary
 Meta-Environment
 All data has syntax
 All computation is transformation
 Languages are environment contracts
 MDE = DSL engineering (a.o.)
 Waebric case-study

26th August 2008 Using the Meta-Environment for MDE 29
Thank you!
 Questions?
 More info:
 http://meta-environment.org
 storm@cwi.nl
to be released soon...

26th August 2008 Using the Meta-Environment for MDE 30
END

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Using the Meta-Environment for Model-Driven Engineering

1. Using the Meta-Environment for Model-Driven Engineering Tijs van der Storm, Ph.D. Centrum voor Wiskunde en Informatica storm@cwi.nl http://homepages.cwi.nl/~storm

2. 26th August 2008 Using the Meta-Environment for MDE 2 Introduction  Me: Tijs van der Storm  Researcher (CWI) / teacher (UvA)  Interests:  Software evolution  Programming languages  Today:  Using the Meta-Environment...  for Model Driven Engineering (MDE)

3. 26th August 2008 Using the Meta-Environment for MDE 3 The Meta-Environment a programming environment for languages

4. 26th August 2008 Using the Meta-Environment for MDE 4 ASF+SDF Meta-Environment ASF+SDF ASF: Algebraic Specification Formalism SDF: Syntax Definition Formalism

5. 26th August 2008 Using the Meta-Environment for MDE 5 Introducing the Meta- Environment ...in counterpoint with Smalltalk

6. 26th August 2008 Using the Meta-Environment for MDE 6 Smalltalk Everything is an object

7. 26th August 2008 Using the Meta-Environment for MDE 7 ASF+SDF Meta-Environment Everything is (parsed) “source code” (also called “terms”)

8. 26th August 2008 Using the Meta-Environment for MDE 8 Terms are trees  ...parse trees  ASTs with layout

9. 26th August 2008 Using the Meta-Environment for MDE 9 Smalltalk Every object has a class

10. 26th August 2008 Using the Meta-Environment for MDE 10 ASF+SDF Meta-Environment All source code has syntax (defined by context-free grammars)

11. 26th August 2008 Using the Meta-Environment for MDE 11 SDF: Syntax Definition Formalism  Similar to EBNF  Modular  Arbitrary CFGs  GLR parsing  Scannerless  Disambiguation

12. 26th August 2008 Using the Meta-Environment for MDE 12 Smalltalk All computation occurs through messages

13. 26th August 2008 Using the Meta-Environment for MDE 13 ASF+SDF Meta-Environment All computation is transformation (described using rewrite rules)

14. 26th August 2008 Using the Meta-Environment for MDE 14 ASF: Algebraic Specification Formalism  Concrete syntax  Match  Construct  Term rewriting  Purely functional  Automatic traversal  traversal functions x + 0 = x x * 1 = x x * (y + z) = x * y + x * z if !x then S1 else S2 = if x then S2 else S1 compile(while x do S) = LOOP: load x; jz END; compile(S); jmp LOOP; END:

15. 26th August 2008 Using the Meta-Environment for MDE 15 Smalltalk The language = the environment

16. 26th August 2008 Using the Meta-Environment for MDE 16 ASF+SDF Meta-Environment Languages are environment contracts (environment knows about some languages)

17. 26th August 2008 Using the Meta-Environment for MDE 17 Integration in the environment  Little languages  Errors  Facts  Formatting  ...  Easily extended  Define a language  + GUI plugin

18. 26th August 2008 Using the Meta-Environment for MDE 18 ASF+SDF Meta-Environment What does it have to do with MDE?

19. 26th August 2008 Using the Meta-Environment for MDE 19 What is MDE anyway? OMeta Magritte Fame MBA Smalltalk

20. 26th August 2008 Using the Meta-Environment for MDE 20 Model driven engineering  Domain specific notations  graphical  textual  Transformation  code generation  model-to-model  “compilation”

21. 26th August 2008 Using the Meta-Environment for MDE 21 MDE & the Meta-Environment MetaModel Model System represented by conforms to Meta MetaModel Grammar Source code System Grammar of Grammars Adapted from: Jean Bézivin, On the Unification Power of Models, UML 2003

22. 26th August 2008 Using the Meta-Environment for MDE 22 A little language for Markup M arkaby programmatic HTML

23. 26th August 2008 Using the Meta-Environment for MDE 23 A simple example

24. 26th August 2008 Using the Meta-Environment for MDE 24 Recursive menus

25. 26th August 2008 Using the Meta-Environment for MDE 25 Waebric tool architecture Waebric grammar Evaluator Compiler Formatter Importer Checker XML grammar Java grammar Fact extractor XML formatter = dependency

26. 26th August 2008 Using the Meta-Environment for MDE 26 Demo

27. 26th August 2008 Using the Meta-Environment for MDE 27 Results: Source Lines of Code Component SDF ASF Total SLOC Java grammar 1583 0 1583 XML grammar (w/o DTDs) 109 0 109 248 0 248 Evaluator 348 685 1033 Compiler 277 611 888 Import resolver 106 87 193 Checker 131 174 305 Fact extractor 84 119 203 129 43 172 XHTML formatter 50 100 150 3065 1819 4884 Waebric grammar Waebric formatter

28. 26th August 2008 Using the Meta-Environment for MDE 28 Summary  Meta-Environment  All data has syntax  All computation is transformation  Languages are environment contracts  MDE = DSL engineering (a.o.)  Waebric case-study

29. 26th August 2008 Using the Meta-Environment for MDE 29 Thank you!  Questions?  More info:  http://meta-environment.org  storm@cwi.nl to be released soon...

30. 26th August 2008 Using the Meta-Environment for MDE 30 END

Using the Meta-Environment for Model-Driven Engineering

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Using the Meta-Environment for Model-Driven Engineering