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          <dc:title>Static Typing of Complex Presence Constraints in Interfaces (Artifact)</dc:title>
          <dc:creator>Oostvogels, Nathalie</dc:creator>
          <dc:creator>De Koster, Joeri</dc:creator>
          <dc:creator>De Meuter, Wolfgang</dc:creator>
          <dc:subject>type system</dc:subject>
          <dc:subject>interfaces</dc:subject>
          <dc:subject>dependency logic</dc:subject>
          <dc:description>This artifact is based on TypeScriptIPC, a statically typed programming language with interfaces in which complex presence constraints can be defined.&#13;
This enables developers to express inter-property constraints on interface properties.&#13;
The need for these inter-property constraints stems from web APIs, which often impose a complex "dependency logic" between properties.&#13;
For example, some properties may be mutually exclusive, or the presence of a property may depend on the presence of others, etc.&#13;
TypeScriptIPC is a variant of TypeScript, in which interfaces are extended to express constraints over multiple properties, using propositional logic.&#13;
This artifact contains documentation on how to build and run TypeScriptIPC, such that the code snippets from the paper can be run.</dc:description>
          <dc:publisher>Schloss Dagstuhl – Leibniz-Zentrum für Informatik</dc:publisher>
          <dc:contributor>Nathalie Oostvogels and Joeri De Koster and Wolfgang De Meuter</dc:contributor>
          <dc:date>2018</dc:date>
          <dc:relation>Is Part Of DARTS, Volume 4, Issue 3, Special Issue of the 32nd European Conference on Object-Oriented Programming (ECOOP 2018)</dc:relation>
          <dc:type>Article</dc:type>
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          <dc:identifier>doi:10.4230/DARTS.4.3.3</dc:identifier>
          <dc:identifier>urn:nbn:de:0030-drops-92422</dc:identifier>
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