Bug 14109 – [REG2.066.1] Property-like function call does not work on template value parameter

dmd -unittest -c -o- main.d 2.066: works git head(v2.067-devel-e542e14): Error: no property 'z' for type 'Proxy!(true, a, null)' ---- auto setFields_aux(bool isRef,alias foo,string s,T...)(T args){ import std.array:split; import std.conv:to; enum namesCall=split(s,","); static assert(namesCall.length==T.length); static if(isRef){ enum foo2_name="foo"; } else{ auto foo2=foo; enum foo2_name="foo2"; } string getString() { string ret; foreach(i,vali ; namesCall){ ret~=foo2_name~`.`~vali~`=`~`args[`~i.to!string~`];`; } ret~=`return `~foo2_name~`;`; return ret; } mixin(getString()); } private struct Proxy (bool isRef,alias func, string parameters, Args ...) { private static string addParameter (string parameters, string newParameter) () { return parameters is null ? newParameter : parameters ~ "," ~ newParameter; } Args args; this(int dummy,Args args){ static if(Args.length) this.args=args; } auto opDispatch (string name, T) (T value) { return Proxy!(isRef,func, addParameter!(parameters, name), Args, T)(0,args, value); } auto opCall()() { return setFields_aux!(isRef,func, parameters)(args); } } auto ref setfieldsRef(T)(ref T a){ return Proxy!(true,a, null)(0); } auto setfields(T)(T a){ return Proxy!(true,a, null)(0); } auto setfields(T)(){ T a; return Proxy!(true,a, null)(0); } unittest{ struct A{ string z; } auto a0=A("a"); assert(A.init.setfields.z("a")() == a0); } ----

Reduced test case: string addParameter()() { return ""; } struct Proxy(string parameters) {} alias P = Proxy!(addParameter!()); // works with 2.066, but doesn't work with 2.066.1 Introduced in: https://github.com/D-Programming-Language/dmd/pull/3897

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/bcd157daa58bc84edddc2d5eeeaae7e8e001eca7 fix Issue 14109 - Property-like function call does not work on template value parameter https://github.com/D-Programming-Language/dmd/commit/e8dba387fcaa55f176891750c83dba6513ccba69 Merge pull request #4375 from 9rnsr/fix14109 [REG2.066.1] Issue 14109 - Property-like function call does not work on template value parameter