Phorms: Pattern Combinator Library for Pharo

Markiyan Rizun 1 Gustavo Santos 1 Stéphane Ducasse 1, * Camille Teruel 1
* Corresponding author
1 RMOD - Analyses and Languages Constructs for Object-Oriented Application Evolution
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Abstract : Pattern matching is a common mechanism to provide analysis and transformation of data structures. Such an approach basically checks whether the containing elements of a data structure are constituents of a pattern, described by the developer. This paper is a step towards having seamless object-oriented pattern matching, which would be applicable to any object in Pharo. We present a pattern matching library, called Phorms, which enables users to compose patterns using the syntax of the Pharo programming language. In this library, patterns are objects and therefore can be inspected and de-bugged using existing Pharo tools. Our solution is extensible unlike The Rewrite Engine – Pharo's current pattern matching facilities. Moreover, by treating patterns as first class objects, our library provides more flexibility in the pattern matching process.
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Markiyan Rizun, Gustavo Santos, Stéphane Ducasse, Camille Teruel. Phorms: Pattern Combinator Library for Pharo. International Workshop on Smalltalk Technologies, Aug 2016, Prague, Czech Republic. ⟨10.1145/2991041.2991057⟩. ⟨hal-01353883⟩

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