https://d.puremagic.com/issues/show_bug.cgi?id=12285
Summary: Allow local symbols in alias parameter to non-static
templates when both have same scope
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
Blocks: 12230
--- Comment #0 from Vladimir Panteleev <[email protected]> 2014-03-02
17:02:53 EET ---
///////// test.d ////////
struct S
{
int a, c;
template toA(alias s)
{
void copy()
{
a = s;
}
}
alias cToA = toA!c;
}
unittest
{
S s;
s.c = 42;
s.cToA.copy();
assert(s.a == 42);
}
/////////////////////////
Currently, this produces:
test.d(13): Error: template instance toA!(c) cannot use local 'c' as parameter
to non-global template toA(alias s)
Note that this restriction only applies to variables, but not methods, because
of issue 12230. Fixing 12230 without merging this would surely break code (e.g.
is std.regex, see set!setInvMask).
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