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El autor Enrique Martin-Martin ha publicado 2 artículo(s):

1 - A liberal type system for functional logic programs

We propose a new type system for functional logic programming which is more liberal than the classical DamasMilner usually adopted, but it is also restrictive enough to ensure type soundness. Starting from DamasMilner typing of expressions, we propose a new notion of well-typed program that adds support for type-indexed functions, a particular form of existential types, opaque higherorder patterns and generic functions as shown by an extensive collection of examples that illustrate the possibilities of our proposal. In the negative side, the types of functions must be declared, and therefore types are checked but not inferred. Another consequence is that parametricity is lost, although the impact of this flaw is limited as free theorems were already compromised in functional logic programming because of non-determinism.

Autores: Francisco J. López-Fraguas / Enrique Martin-Martin / Juan Rodríguez-Hortalá / 
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2 - EDD: A Declarative Debugger for Sequential Erlang Programs (High-level Work)

Declarative debuggers are semi-automatic debugging tools that abstract the execution details to focuson the program semantics. This paper presents a tool implementing this approach for the sequentialsubset of Erlang, a functional language with dynamic typing and strict evaluation. Given an erro-neous computation, it first detects an erroneous function (either a «named» function or a lambda-abstraction), and then continues the process to identify the fragment of the function responsible forthe error. Among its features it includes support for exceptions, predefined and built-in functions,higher-order functions, and trusting and undo commands.

Autores: Rafael Caballero / Enrique Martin-Martin / Adrián Riesco / 
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