![]() While the new approach introduces substantial improvements, please be aware of its current application scope: However, please don’t expect widespread performance improvements across the entire IDE. In terms of performance, you can generally expect a decrease in CPU consumption and an improvement in the responsiveness of completion and highlighting speed. While this update does not introduce new functionality, it affects crucial aspects of the IDE such as highlighting, inspections, completions, and navigation. The new engine should primarily address issues in specific setups and projects, particularly those with complex TypeScript typings. This new approach ensures that, while we align with TypeScript for improved accuracy, our powerful features continue to be functional. Therefore, plugin developers and our team can still utilize our model to provide complex refactorings and inspections. ![]() It’s important to emphasize that this shift doesn’t mean a complete transition to the language service. Additionally, we’re now retrieving type information, caching it, and converting it into our internal representation. The new engine utilizes the same TypeScript language service instance that is already in use. The primary change concerns type evaluation. All mechanisms that rely on IntelliJ PSI continue to operate as before. In this update, a critical aspect to note is that our own robust TypeScript language support remains intact. Recognizing this, we have come up with the idea of utilizing the TypeScript language server’s capabilities for type evaluation to enhance both accuracy and performance. However, as we use both the language server and our type evaluation, in some cases the overall performance is limited by the slower component. In the end, it has become clear that, while our efforts to match the TypeScript compiler’s accuracy have been significant, we can never surpass the precision of the TypeScript compiler itself.Īdditionally, there is already integration with the TypeScript language server in WebStorm, which is utilized, for instance, in error highlighting. However, this approach has led to the emergence of subtle bugs due to divergences from the TypeScript compiler. This engine has been effective in evaluating types, closely replicating the type evaluation mechanisms of the TypeScript compiler. Since introducing TypeScript support, WebStorm has operated with its own TypeScript engine. The TypeScript type system is renowned for its power, a quality that is essential for covering the dynamic nature of JavaScript. We are also committed to improving performance, especially in certain setups where users have historically faced problems.
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