Currently, I am utilizing Visual Studio Pro 2015 with auto compile enabled on save feature.
The issue arises in the compiled js file when an error occurs within the typescript __extends function. Specifically, it states 'Cannot read property prototype of undefined' for b.prototype.
Interestingly enough, upon rebuilding the project, the error disappears and all functionalities resume working seamlessly.
It seems like the issue you're facing is related to the order in which your classes are being added to the compiled .js file. I encountered a similar problem with Visual Studio where the single-file compilation feature caused complications for me as well.
Upon reviewing the compiled file, have you noticed any instances where a class is inheriting from a base class that hasn't been defined until later in the document? This could be leading to the unexpected behavior you're experiencing when the compilation is triggered by a save action.
It's strange that this behavior occurs only during a save operation - it could indicate some level of unpredictability in the compiler's output sequencing. Incremental compilation may play a role in this inconsistency.
To address this issue, you can utilize the <reference> tag to specify that a certain class should be defined after another one in the compilation process.
For instance, by including a reference tag in a subclass declaration like this:
/// <reference path="./MyBaseClass" />
class MyClass extends MyBaseClass {
}
you can ensure that the subclass will come after its base class in the resulting compiled .js file:
class MyBaseClass {
}
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