digitalmars.D.bugs - [Issue 24330] New: Redundant template instantiations for equal
- d-bugmail puremagic.com (42/42) Jan 11 https://issues.dlang.org/show_bug.cgi?id=24330
https://issues.dlang.org/show_bug.cgi?id=24330 Issue ID: 24330 Summary: Redundant template instantiations for equal string/array literals Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: enhancement Priority: P3 Component: dmd Assignee: nobody puremagic.com Reporter: dkorpel live.nl ``` void g(string T)() { pragma(msg, "g ", T, " ", T.stringof); } void h(ubyte[] T)() { pragma(msg, "h ", T, " ", T.stringof); } void main() { g!"a"(); g!(['a'])(); h!(cast(ubyte[])"a")(); h!(['a'])(); } ``` Prints: ``` g a "a" g a ['a'] h a "a" h [cast(ubyte)97u] [cast(ubyte)97u] ``` Showing multiple instantiations are made. This is because internally, StringExp and ArrayLiteralExp are hashed/mangled differently. An improvement would be to consistently convert one to the other if possible. --
Jan 11