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A Type Safe DOM API

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Book cover Database Programming Languages (DBPL 2005)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 3774))

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Abstract

DOM (Document Object Model) is the W3C recommendation for an API for manipulating XML documents. The API is stated in terms of a language neutral IDL with normative bindings given for Java and ECMAScript. The type system underlying the DOM API is a simple object-based one which relies entirely on interfaces and interface extension. However, this simplicity is deceiving because the DOM architects implicitly impose a large number of constraints which are only stated informally. The long list of exceptions that some DOM methods may raise witnesses these constraints.

The present work defines a refinement of Java’s type system which makes most of these constraints accessible and thus checkable to the compiler. Technically, we graft a polymorphic annotation system on top of the host language’s types and propagate the annotations using ideas borrowed from affine type systems. We provide a type soundness proof with respect to an operational semantics of a Java core language.

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Author information

Authors and Affiliations

  1. Universität Freiburg,  

    Peter Thiemann

Authors
  1. Peter Thiemann
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Editor information

Editors and Affiliations

  1. Microsoft Research Cambridge,  

    Gavin Bierman

  2. Saarland University, Saarbrücken, Germany

    Christoph Koch

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© 2005 Springer-Verlag Berlin Heidelberg

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Thiemann, P. (2005). A Type Safe DOM API. In: Bierman, G., Koch, C. (eds) Database Programming Languages. DBPL 2005. Lecture Notes in Computer Science, vol 3774. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11601524_11

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  • DOI: https://doi.org/10.1007/11601524_11

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-30951-2

  • Online ISBN: 978-3-540-31445-5

  • eBook Packages: Computer ScienceComputer Science (R0)

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