About: Automatic detection of core Erlang message passing errors

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type	http://eprints.org/ontology/ConferenceItemEPrint http://eprints.org/ontology/EPrint Article Academic Article
seeAlso	HTML Summary of #69298 Automatic detection of core Erlang message passing errors
sameAs	Automatic detection of core Erlang message passing errors
Title	Automatic detection of core Erlang message passing errors
described by	https://demo.openlinksw.com/about/id/entity/https/raw.githubusercontent.com/annajordanous/CO644Files/main/export_kar_RDFN3.n3
Date	2018-09-29
Creator	Joseph Harrison
status	non peer reviewed published
Publisher	ACM Press
abstract	Erlang's powerful communication model allows us to build high-level concurrent systems. These can, however, harbour subtle communication errors less severe than global deadlock or crashes: messages never received can degrade performance and consume swaths of memory. We believe that some of these errors can be quickly detected with static analysis. We have built a prototype tool which operates at the Core Erlang level to assist identification of some of these errors. We present a fragment of Erlang's type system as a subtyping relation, following up with type inference functions for a portion of Core Erlang's patterns, guards, and message syntax. The implementation of the prototype is detailed, noting specific behaviours of the Erlang compiler and nuances of Core Erlang's syntax along the way, some of which complicate our analysis. Although our tool is at a very early stage of development, we show examples of the errors we can identify, despite using a considerable over-approximation in our type inference system. After comparing our tool to other work in the Erlang community and beyond, we reflect on the current state of the prototype, before considering further applications of our concept of message compatibility.
Is Part Of	Proceedings of the 17th ACM SIGPLAN International Workshop on Erlang - Erlang 2018 https://kar.kent.ac.uk/id/repository
list of authors	https://kar.kent.ac.uk/id/eprint/69298#authors
presented at	Erlang 2018 Proceedings of the 17th ACM SIGPLAN International Workshop on Erlang
is topic of	https://raw.githubusercontent.com/annajordanous/CO644Files/main/export_kar_RDFN3.n3
is primary topic of	HTML Summary of #69298 Automatic detection of core Erlang message passing errors

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