论文信息 - Local Hoare reasoning about DOM

Local Hoare reasoning about DOM

The W3C Document Object Model (DOM) specifies an XML update library. DOM is written in English, and is therefore not compositional and not complete. We provide a first step towards a compositional specification of DOM. Unlike DOM, we are able to work with a minimal set of commands and obtain a complete reasoning for straight-line code. Our work transfers O'Hearn, Reynolds and Yang's local Hoare reasoning for analysing heaps to XML, viewing XML as an in-place memory store as does DOM. In particular, we apply recent work by Calcagno, Gardner and Zarfaty on local Hoare reasoning about simple tree update to this real-world DOM application. Our reasoning not only formally specifies a significant subset of DOM Core Level 1, but can also be used to verify, for example, invariant properties of simple Javascript programs.

Philippa Gardner | Gareth Smith | Uri Zarfaty | Mark J. Wheelhouse

[1] Peter W. O'Hearn,et al. Resources, Concurrency and Local Reasoning , 2004, CONCUR.

[2] Philippa Gardner,et al. A Context Logic for Tree Update , 2004 .

[3] Philippa Gardner,et al. Context logic as modal logic: completeness and parametric inexpressivity , 2007, POPL '07.

[4] Philippa Gardner,et al. DOM: Towards a Formal Specification , 2008, PLAN-X.

[5] Peter W. O'Hearn,et al. Shape Analysis for Composite Data Structures , 2007, CAV.

[6] Philippa Gardner,et al. Local Reasoning About Tree Update , 2006, MFPS.

[7] Gareth Smith. First Year Report : A context logic approach to analysis and specification of XML update , 2006 .

[8] Peter W. O'Hearn,et al. Local Reasoning about Programs that Alter Data Structures , 2001, CSL.

[9] Peter W. O'Hearn,et al. Smallfoot: Modular Automatic Assertion Checking with Separation Logic , 2005, FMCO.

[10] Peter W. O'Hearn,et al. BI as an assertion language for mutable data structures , 2001, POPL '01.

[11] Philippa Gardner,et al. Adjunct Elimination in Context Logic for Trees , 2007, APLAS.