Sunday, July 17, 2011

SmartEiffel as Liberty core

OK guys, I have permission from Dominique, and I guess it is better anyway.

SmartEiffel is back in the trenches. It is now completely part of LibertyEiffel.

Here is the plan:
  1. really integrate SmartEiffel into Liberty (done)
  2. separate the C backend from the AST (fix and use the acyclic visitor)
  3. remove or rewrite the Java backend (using the acyclic visitor)
  4. rewrite the interpreter as a SmartEiffel backend (maybe using the acyclic visitor)

Extra points to fix:
  • sedb — it lost some of its power in the latest releases (some break points disappeared)
  • Liberty core — will be removed; that code is dead.
  • some bugs in inline agents parsing (SmartEiffel segfault)
  • some bugs in boost mode (invalid C code)

The Liberty libraries (both native and wrappers), on the other hand, are here to stay. They deserve being enhanced.

Spread the news :-)

4 comments:

  1. "2. separate the C backend from the AST (fix and use the acyclic visitor)"
    Are you aware of some bugs in the acyclic visitor?
    Integrating LLVM with the acyclic visitor is quite a long task but conceptually simple... just leave - at least at the beginning - all the optimizations to LLVM.... but eventual bugs in the visitor pattern are show-stopper.

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  2. I'm not aware of any problems with the pattern… Can you elaborate? Some link?

    What does it have to do with LLVM optimizations? The pattern is about code organization, not optimizations.

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  3. Pardon, I wan't clear.
    I meant: are there any known bug related to the visitor classes?
    Oh, LLVM does not have almost nothing to do with it...

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  4. It's just a pattern… If there are bugs, they are in the implementation :-)

    See http://www.objectmentor.com/resources/articles/acv.pdf

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