Monday, March 7, 2016

Re: Compiling only what is needed to run?


Shouldn't the second method be considered as dead code and automatically removed by GWT?

The following is just speculation as I don't know the compiler internals out of my head:

I assume thats because GWT will compile the source using JDT in order to get an AST that GWT can then optimize. During the JDT compilation the super source is used so JDT does not see a method definition Logger.getAnonymousLogger() and generates the error you are seeing. 

If you use code that actually compiles then GWT should also remove that dead code during its AST optimization passes and the final JS output should not contain your unused methodCompileNotOk(). Alternatively you can mark methodCompileNotOk() with @GwtIncompatible so that GWT ignores the method.

-- J.

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