Bug 10511 – Unhelpful error messages with a const opDispatch

Modified from code by David in D.learn. This is wrong code: struct Foo { static Foo opDispatch(string s)() const { return Foo(); } } void main() { Foo f = Foo.bar(); } DMD 2.064alpha gives: test.d(7): Error: no property 'bar' for type 'Foo' test.d(7): Error: Foo is not an expression The error messages don't help much because they don't explain what's the problem. The code able to compile is without "const": struct Foo { static Foo opDispatch(string s)() { return Foo(); } } void main() { Foo f = Foo.bar(); }

Why static const methods are allowed in the very first place? Is there a legit use case?

(In reply to comment #1) > Why static const methods are allowed in the very first place? Is there a legit > use case? I think it's a regression (maybe already reported in Bugzillza), because this code: const void foo() {} void main() {} Used to give: Error: function test.foo without 'this' cannot be const/immutable

(In reply to comment #2) > I think it's a regression (maybe already reported in Bugzillza), It's Issue 10482

The code from the original bug report fails compiling with: test.d(2): Error: function is10511.Foo.opDispatch!"bar".opDispatch without this cannot be const test.d(7): Error: template instance is10511.Foo.opDispatch!"bar" error instantiating Which the correct error message. Closing as fixed.