Bug 3640 – shared this() constructor does not work and reports strange errors without line numbers

Sample code: ================================= class foo{ shared this(){} } void main(){ auto x = new shared(foo)(); } ================================= Result with dmd 2.037 (bug report lists 2.036, but that's because 2.037 was not an option at the time) $ dmd test.d Error: cannot implicitly convert expression (this) of type shared(foo) to test.foo I have no idea what inspired me to originally try this variation of a constructor since dropping the shared keyword results in code that compiles. Moving the shared keyword after the constructor declaration (AKA this() shared{}) results in a parse error.

This code compiles and runs with no errors on dmd 2.053