Bug 1903 – Template declaration (for mixin) can't be parsed

DMD 2.012 Linux The following code doesn't work, and if I understand correctly, it should: BEGIN CODE void Foo(int a,int b) {} template Bar(int x) { Foo(x,x); } void Baz() { mixin Bar!(1); } END CODE

I should have given more details on how it fails. It appears to fail on the , character in the template declaration: test.d(4): found ',' when expecting ')' test.d(4): semicolon expected, not 'x' test.d(4): no identifier for declarator x test.d(4): semicolon expected, not ')' test.d(4): Declaration expected, not ')'

I don't think you can mixin statements, only decelerations.

[email protected] wrote: > http://d.puremagic.com/issues/show_bug.cgi?id=1903 > > Summary: Template declaration (for mixin) can't be parsed > Product: D > Version: 2.012 > Platform: PC > OS/Version: Linux > Status: NEW > Severity: normal > Priority: P2 > Component: DMD > AssignedTo: [email protected] > ReportedBy: [email protected] > > > DMD 2.012 Linux > > The following code doesn't work, and if I understand correctly, it should: > > BEGIN CODE > > void Foo(int a,int b) {} > template Bar(int x) > { > Foo(x,x); > } > void Baz() > { > mixin Bar!(1); > } > > END CODE > > The problem is that a template basically constitutes a namespace, not a scope. :) So you can only put stuff in a template that you could also put at the global module level. --downs

downs wrote: > [email protected] wrote: >> http://d.puremagic.com/issues/show_bug.cgi?id=1903 >> >> Summary: Template declaration (for mixin) can't be parsed >> Product: D >> Version: 2.012 >> Platform: PC >> OS/Version: Linux >> Status: NEW >> Severity: normal >> Priority: P2 >> Component: DMD >> AssignedTo: [email protected] >> ReportedBy: [email protected] >> >> >> DMD 2.012 Linux >> >> The following code doesn't work, and if I understand correctly, it should: >> >> BEGIN CODE >> >> void Foo(int a,int b) {} >> template Bar(int x) >> { >> Foo(x,x); >> } >> void Baz() >> { >> mixin Bar!(1); >> } >> >> END CODE >> >> > > The problem is that a template basically constitutes a namespace, not a scope. :) > > So you can only put stuff in a template that you could also put at the global module level. > > --downs I refactored it to use string mixins. It works now, but it's ugly.

Please don't blindly quote the entire message when replying. It's bad enough on any newsgroup, and when it clutters up Bugzilla, it's even worse. A template by syntax contains declarations, not statements. So this isn't supposed to work.