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The Squeak Environment

The Squeak Environment. Smalltalk Run-Time Architecture. Virtual Machine + Image + Changes and Sources Image = bytecodes Sources and changes = code (text). Runtime Architecture. The byte-code is in fact translated into native code by a just-in-time compiler.

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The Squeak Environment

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  1. The Squeak Environment

  2. Smalltalk Run-Time Architecture • Virtual Machine + Image + Changes and Sources • Image = bytecodes • Sources and changes = code (text)

  3. Runtime Architecture • The byte-code is in fact translated into native code by a just-in-time compiler. • The source and the changes are not necessary for interpreting the byte-code, this is just for the development. Normally they are removed for deployment. • An application can be delivered as some byte-code files that will be executed with a VM. The development image is stripped to remove the unnecessary development components.

  4. Mouse Semantics

  5. World Menu and Open Menu

  6. Browsing a class

  7. Browsing methods

  8. Inspector • To look inside objects • Violates encapsulation!!! • Monster new inspect

  9. Direct Manipulation • Bring the halo • Experiment

  10. Debugger?

  11. Debugger !!!

  12. FileList

  13. Message Names Finder

  14. Methods in ChangeSets + Versions

  15. Preferences

  16. SUnit

  17. Transcript is Sloooooooooooow 19

  18. Squeak Map Package Loader

  19. Monticello

  20. Monticello Change Browser

  21. Repository

  22. SqueakSource 24

  23. Changes Menu…Recently logged files • Everything you do is recorded

  24. ChangeSorter: to sort your changes

  25. Cool Packages to Load • Shout • Refactoring Browser • eCompletion

  26. Change your Mind • Everything you do is recorded !! • So try and learn how to recover your code • You are smart so • Experiment, • Learn for you, browse, • educate your taste (not all Squeak code is good) • Be aggressive, ***all*** the code is there

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