The 10th Dynamic Languages Symposium (DLS) at SPLASH 2014 is the premier forum for researchers and practitioners to share knowledge and research on dynamic languages, their implementation, and applications. The influence of dynamic languages -- from ...

Programming language research in the last decades was mainly driven by mathematical methods (such as formal semantics, correctness proofs, type soundness proofs, etc.) or run-time arguments based on benchmark tests. This happened despite the frequent ...

Combining static and dynamic typing within the same language offers clear benefits to programmers. It provides dynamic typing in situations that require rapid prototyping, heterogeneous data structures, and reflection, while supporting static typing ...

We report our experience in implementing SqueakJS, a bit-compatible implementation of Squeak/Smalltalk written in pure JavaScript. SqueakJS runs entirely in the Web browser with a virtual filesystem that can be directed to a server or client-side ...

In this paper we present a new tool called DOCaT (Dynamic Object Capability Tracer), a model checker for JavaScript that detects capability leaks in an object capability system. DOCaT includes an editor that highlights the sections of code that can be ...

Lisp and Scheme have demonstrated the power of macros to enable programmers to evolve and craft languages. In languages with more complex syntax, macros have had less success. In part, this has been due to the difficulty in building expressive hygienic ...

Extensible operating system is a design based on the idea that operating systems can be adapted to meet user requirements by allowing user extensions. In a different scenario, that of application development, there is a paradigm that supports that ...

JavaScript's typed arrays have proven to be a crucial API for many JS applications, particularly those working with large amounts of data or emulating other languages. Unfortunately, the current typed array API offers no means of abstraction. ...

Dynamic languages such as R are increasingly used to process .large data sets. Here, the R interpreter induces a large memory overhead due to wasteful memory allocation policies. If an application's working set exceeds the available physical memory, the ...

We present object versioning as a generic approach to preserve access to previous development and application states. Version-aware references can manage the modifications made to the target object and record versions as desired. Such references can be ...

This paper concerns object-oriented embedded DSLs, which are popular in the Ruby community but have received little attention in the research literature. Ruby DSLs implement language keywords as implicit method calls to self; language structure is ...

Object-orientation relies on polymorphism to express behavioral variants. As opposed to traditional procedural design, explicit type-based conditionals should be avoided. This message is conveyed in introductory material on object orientation, as well ...

From its modest beginnings as a tool to validate forms, JavaScript is now an industrial-strength language used to power online applications such as spreadsheets, IDEs, image editors and even 3D games. Since all modern web browsers support JavaScript, it ...

We present ACDC-JS, an open-source JavaScript memory management benchmarking tool. ACDC-JS incorporates a heap model based on real web applications and may be configured to expose virtually any relevant performance characteristics of JavaScript memory ...