Istituto di Scienza e Tecnologie dell'Informazione     
Aiello L., Prini G. Il trattamento delle variabili nei sistemi di programmazione. In: AICA 77 (Pisa, 1977). Atti, pp. 75 - 91. ETS, 1977.
The mechanisms for the evaluation of variables in programming languages (particularly, in applicative or functional languages) are reviewed. The evaluation mechanism with static scoping and dynamic scoping are examined in some details. Next, the techniques of deep binding and shallow binding are presented. They are two techniques for binding variables to their corresponding values in the various environments. Then, the relations among these techniques and the two strategies for determining the scoping of variables are examined. Finally, a proposal is presented on an efficient implementation of variable bindings within the static scoping.

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