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Documents authored by Sieczkowski, Filip

Document
DOI: 10.4230/LIPIcs.FSCD.2020.18
A Reflection on Continuation-Composing Style

Authors: Dariusz Biernacki, Mateusz Pyzik, and Filip Sieczkowski

Published in: LIPIcs, Volume 167, 5th International Conference on Formal Structures for Computation and Deduction (FSCD 2020)

Abstract
We present a study of the continuation-composing style (CCS) that describes the image of the CPS translation of Danvy and Filinski’s shift and reset delimited-control operators. In CCS continuations are composable rather than abortive as in the traditional CPS, and, therefore, the structure of terms is considerably more complex. We show that the CPS translation from Moggi’s computational lambda calculus extended with shift and reset has a right inverse and that the two translations form a reflection i.e., a Galois connection in which the target is isomorphic to a subset of the source (the orders are given by the reduction relations). Furthermore, we use this result to show that Plotkin’s call-by-value lambda calculus extended with shift and reset is isomorphic to the image of the CPS translation. This result, in particular, provides a first direct-style transformation for delimited continuations that is an inverse of the CPS transformation up to syntactic identity.
Cite as

Dariusz Biernacki, Mateusz Pyzik, and Filip Sieczkowski. A Reflection on Continuation-Composing Style. In 5th International Conference on Formal Structures for Computation and Deduction (FSCD 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 167, pp. 18:1-18:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{biernacki_et_al:LIPIcs.FSCD.2020.18,
  author =	{Biernacki, Dariusz and Pyzik, Mateusz and Sieczkowski, Filip},
  title =	{{A Reflection on Continuation-Composing Style}},
  booktitle =	{5th International Conference on Formal Structures for Computation and Deduction (FSCD 2020)},
  pages =	{18:1--18:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-155-9},
  ISSN =	{1868-8969},
  year =	{2020},
  volume =	{167},
  editor =	{Ariola, Zena M.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSCD.2020.18},
  URN =		{urn:nbn:de:0030-drops-123402},
  doi =		{10.4230/LIPIcs.FSCD.2020.18},
  annote =	{Keywords: delimited control, continuation-passing style, reflection, call-by-value lambda calculus, computational lambda calculus}
}
Document
DOI: 10.4230/LIPIcs.FSCD.2019.30
Typed Equivalence of Effect Handlers and Delimited Control

Authors: Maciej Piróg, Piotr Polesiuk, and Filip Sieczkowski

Published in: LIPIcs, Volume 131, 4th International Conference on Formal Structures for Computation and Deduction (FSCD 2019)

Abstract
It is folklore that effect handlers and delimited control operators are closely related: recently, this relationship has been proved in an untyped setting for deep handlers and the shift_0 delimited control operator. We positively resolve the conjecture that in an appropriately polymorphic type system this relationship can be extended to the level of types, by identifying the necessary forms of polymorphism, thus extending the definability result to the typed context. In the process, we identify a novel and potentially interesting type system feature for delimited control operators. Moreover, we extend these results to substantiate the folklore connection between shallow handlers and control_0 flavour of delimited control, both in an untyped and typed settings.
Cite as

Maciej Piróg, Piotr Polesiuk, and Filip Sieczkowski. Typed Equivalence of Effect Handlers and Delimited Control. In 4th International Conference on Formal Structures for Computation and Deduction (FSCD 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 131, pp. 30:1-30:16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{pirog_et_al:LIPIcs.FSCD.2019.30,
  author =	{Pir\'{o}g, Maciej and Polesiuk, Piotr and Sieczkowski, Filip},
  title =	{{Typed Equivalence of Effect Handlers and Delimited Control}},
  booktitle =	{4th International Conference on Formal Structures for Computation and Deduction (FSCD 2019)},
  pages =	{30:1--30:16},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-107-8},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{131},
  editor =	{Geuvers, Herman},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSCD.2019.30},
  URN =		{urn:nbn:de:0030-drops-105376},
  doi =		{10.4230/LIPIcs.FSCD.2019.30},
  annote =	{Keywords: type-and-effect systems, algebraic effects, delimited control, macro expressibility}
}
Document
DOI: 10.4230/LIPIcs.CSL.2012.107
A Concurrent Logical Relation

Authors: Lars Birkedal, Filip Sieczkowski, and Jacob Thamsborg

Published in: LIPIcs, Volume 16, Computer Science Logic (CSL'12) - 26th International Workshop/21st Annual Conference of the EACSL (2012)

Abstract
We present a logical relation for showing the correctness of program transformations based on a new type-and-effect system for a concurrent extension of an ML-like language with higher-order functions, higher-order store and dynamic memory allocation. We show how to use our model to verify a number of interesting program transformations that rely on effect annotations. In particular, we prove a Parallelization Theorem, which expresses when it is sound to run two expressions in parallel instead of sequentially. The conditions are expressed solely in terms of the types and effects of the expressions. To the best of our knowledge, this is the first such result for a concurrent higher-order language with higher-order store and dynamic memory allocation.
Cite as

Lars Birkedal, Filip Sieczkowski, and Jacob Thamsborg. A Concurrent Logical Relation. In Computer Science Logic (CSL'12) - 26th International Workshop/21st Annual Conference of the EACSL. Leibniz International Proceedings in Informatics (LIPIcs), Volume 16, pp. 107-121, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{birkedal_et_al:LIPIcs.CSL.2012.107,
  author =	{Birkedal, Lars and Sieczkowski, Filip and Thamsborg, Jacob},
  title =	{{A Concurrent Logical Relation}},
  booktitle =	{Computer Science Logic (CSL'12) - 26th International Workshop/21st Annual Conference of the EACSL},
  pages =	{107--121},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-42-2},
  ISSN =	{1868-8969},
  year =	{2012},
  volume =	{16},
  editor =	{C\'{e}gielski, Patrick and Durand, Arnaud},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2012.107},
  URN =		{urn:nbn:de:0030-drops-36671},
  doi =		{10.4230/LIPIcs.CSL.2012.107},
  annote =	{Keywords: verification, logical relation, concurrency, type and effect system}
}
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