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  1. Proceedings of the 11th Symposium on Dynamic Languages (DLS 2015)
  2. Message safety in Dart
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From APIs to languages: generalising method names
A formalization of typed lua
Compiling for multi-language task migration
Measuring polymorphism in python programs
Gradual certified programming in coq
High-performance cross-language interoperability in a multi-language runtime
Tracking down performance variation against source code evolution
Message safety in Dart
Java-to-JavaScript translation via structured control flow reconstruction of compiler IR
Server-side type profiling for optimizing client-side JavaScript engines
Control-flow analysis of dynamic languages via pointer analysis
Language-independent storage strategies for tracing-JIT-based virtual machines
An empirical investigation of the effects of type systems and code completion on API usability using TypeScript and JavaScript in MS visual studio
Access control to reflection with object ownership

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Message safety in Dart

Content Provider ACM Digital Library
Author Møller, Anders Schwarz, Mathias Strocco, Fabio Ernst, Erik
Abstract Unlike traditional static type checking, the type system in the Dart programming language is unsound by design, even for fully annotated programs. The rationale has been that this allows compile-time detection of likely errors and enables code completion in integrated development environments, without being restrictive on programmers. Despite unsoundness, judicious use of type annotations can ensure useful properties of the runtime behavior of Dart programs. We present a formal model of a core of Dart with a focus on its type system, which allows us to elucidate the causes of unsoundness. Our main contribution is a characterization of message-safe programs and a theorem stating that such programs will never encounter 'message not understood' errors at runtime. Message safety is less restrictive than traditional type soundness, and we argue that it forms a natural intermediate point between dynamically typed and statically typed Dart programs. .
Starting Page 41
Ending Page 53
Page Count 13
File Format PDF
ISBN 9781450336901
DOI 10.1145/2816707.2816711
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2015-10-21
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Optional types Type systems
Content Type Text
Resource Type Article
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