Clojure's main rudiment: Macros - Construindo a fundação

Uma visão abrangente e conceitual sobre Macros em Clojure.

Transcript

1. Clojure's main
   rudiment: Macros
   Construindo a fundação
   

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2. “O código são dados!”
   

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3. “O código são dados!”
   

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5. Hands-on 1/3
   

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6. Sistema de avaliação em linguagens não-Lisp
   Fonte: Brave Clojure
   

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7. List’s -> Tree’s
   Fonte: Brave Clojure
   

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8. Sistema de avaliação em Clojure
   Fonte: Brave Clojure
   

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9. Recapitulando!
   • Reader
   • Reader Macros
   • (hands-on 2/3)
   • Evaluator
   • Symbols
   • Special-forms
   

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10. Clojure Macros
    

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11. Sistema de avaliação em Clojure
    Fonte: Brave Clojure
    

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12. Hands-on 3/3
    

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13. –Rich Hickey
    (http://codequarterly.com/2011/rich-hickey/)
    “You can reach a point with Lisp where,
    between the conceptual simplicity, the large
    libraries, and the customization of macros, you
    are able to write only code that matters. And,
    once there, you are able to achieve a very high
    degree of focus, such as you would when
    playing Go, or playing a musical instrument, or
    meditating. And then, as with those activities,
    there can be a feeling of elation that
    accompanies that mental state of focus.”
    

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