research-article

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Authors:

Gabriel Radanne,

Hannes Saffrich,

Peter ThiemannAuthors Info & Claims

Proceedings of the ACM on Programming Languages, Volume 4, Issue ICFP

Article No.: 103, Pages 1 - 29

https://doi.org/10.1145/3408985

Published: 03 August 2020 Publication History

Abstract

Systems programming often requires the manipulation of resources like file handles, network connections, or dynamically allocated memory. Programmers need to follow certain protocols to handle these resources correctly. Violating these protocols causes bugs ranging from type mismatches over data races to use-after-free errors and memory leaks. These bugs often lead to security vulnerabilities.

While statically typed programming languages guarantee type soundness and memory safety by design, most of them do not address issues arising from improper handling of resources. An important step towards handling resources is the adoption of linear and affine types that enforce single-threaded resource usage. However, the few languages supporting such types require heavy type annotations.

We present Affe, an extension of ML that manages linearity and affinity properties using kinds and constrained types. In addition Affe supports the exclusive and shared borrowing of affine resources, inspired by features of Rust. Moreover, Affe retains the defining features of the ML family: it is an impure, strict, functional expression language with complete principal type inference and type abstraction. does not require any linearity annotations in expressions and supports common functional programming idioms.

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https://dl.acm.org/doi/10.1145/3649848
Almeida BMordido AVasconcelos V(2023)Kind Inference for the FreeST Programming LanguageElectronic Proceedings in Theoretical Computer Science10.4204/EPTCS.378.1378(1-13)Online publication date: 13-Apr-2023
https://doi.org/10.4204/EPTCS.378.1
Gonnord LHenrio LMorel LRadanne G(2023)A Survey on Parallelism and DeterminismACM Computing Surveys10.1145/356452955:10(1-28)Online publication date: 2-Feb-2023
https://dl.acm.org/doi/10.1145/3564529
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Index Terms

Kindly bent to free us
1. Software and its engineering
  1. Software notations and tools
    1. Formal language definitions
      1. Semantics
    2. General programming languages
      1. Language types
        Functional languages

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cover image Proceedings of the ACM on Programming Languages

Proceedings of the ACM on Programming Languages Volume 4, Issue ICFP

August 2020

1070 pages

EISSN:2475-1421

DOI:10.1145/3415018

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Copyright © 2020 Owner/Author.

This work is licensed under a Creative Commons Attribution International 4.0 License.

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 03 August 2020

Published in PACMPL Volume 4, Issue ICFP

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Cited By

Marshall DOrchard D(2024)Functional Ownership through Fractional UniquenessProceedings of the ACM on Programming Languages10.1145/36498488:OOPSLA1(1040-1070)Online publication date: 29-Apr-2024
https://dl.acm.org/doi/10.1145/3649848
Almeida BMordido AVasconcelos V(2023)Kind Inference for the FreeST Programming LanguageElectronic Proceedings in Theoretical Computer Science10.4204/EPTCS.378.1378(1-13)Online publication date: 13-Apr-2023
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Gonnord LHenrio LMorel LRadanne G(2023)A Survey on Parallelism and DeterminismACM Computing Surveys10.1145/356452955:10(1-28)Online publication date: 2-Feb-2023
https://dl.acm.org/doi/10.1145/3564529
Spiwack AKiss CBernardy JWu NEisenberg R(2022)Linearly qualified types: generic inference for capabilities and uniquenessProceedings of the ACM on Programming Languages10.1145/35476266:ICFP(137-164)Online publication date: 31-Aug-2022
https://dl.acm.org/doi/10.1145/3547626
Marshall DVollmer MOrchard D(2022)Linearity and Uniqueness: An Entente CordialeProgramming Languages and Systems10.1007/978-3-030-99336-8_13(346-375)Online publication date: 29-Mar-2022
https://doi.org/10.1007/978-3-030-99336-8_13

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