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2010
IEEE

Read-Only Execution for Dynamic Languages

11 years 4 months ago
Read-Only Execution for Dynamic Languages
Supporting read-only and side effect free execution has been the focus of a large body of work in the area of statically typed programming languages. Read-onlyness in dynamically typed languages is difficult to achieve because of the absence of a type checking phase and the support of an open-world assumption in which code can be constantly added and modified. To address this issue, we propose Dynamic Read-Only references (DRO) that provide a view on an object where this object and its object graph are protected from modification. The readonly view dynamically propagates to aggregated objects, without changing the object graph itself; it acts as a read-only view of complex data structures, without making them read-only globally. We implement dynamic read-only references by using smart object proxies that lazily propagate the read-only view, following the object graph and driven by control flow and applied them to realize side-effect free assertions.
Jean-Baptiste Arnaud, Marcus Denker, Stépha
Added 18 Jul 2010
Updated 18 Jul 2010
Type Conference
Year 2010
Where TOOLS
Authors Jean-Baptiste Arnaud, Marcus Denker, Stéphane Ducasse, Damien Pollet, Alexandre Bergel, Mathieu Suen
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