Decidable Subtyping of Existential Types for Julia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10486327" target="_blank" >RIV/00216208:11320/24:10486327 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MSFw76cooR" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MSFw76cooR</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1145/3656421" target="_blank" >10.1145/3656421</a>
Alternative languages
Result language
angličtina
Original language name
Decidable Subtyping of Existential Types for Julia
Original language description
Julia is a modern scientific-computing language that relies on multiple dispatch to implement generic libraries. While the language does not have a static type system, method declarations are decorated with expressive type annotations to determine when they are applicable. To find applicable methods, the implementation uses subtyping at run-time. We show that Julia's subtyping is undecidable, and we propose a restriction on types to recover decidability by stratifying types into method signatures over value types-where the former can freely use bounded existential types but the latter are restricted to use-site variance. A corpus analysis suggests that nearly all Julia programs written in practice already conform to this restriction.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
<a href="/en/project/LL2325" target="_blank" >LL2325: Engineering of Data Analysis Pipelines</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PROCEEDINGS OF THE ACM ON PROGRAMMING LANGUAGES-PACMPL
ISSN
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e-ISSN
2475-1421
Volume of the periodical
8
Issue of the periodical within the volume
PLDI
Country of publishing house
US - UNITED STATES
Number of pages
24
Pages from-to
191
UT code for WoS article
001264464100046
EID of the result in the Scopus database
2-s2.0-85196799002