https://d.puremagic.com/issues/show_bug.cgi?id=11548
Summary: ParameterDefaultValueTuple fails to compile when
passed in a function containing a parameter named
"args".
Product: D
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Phobos
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Kapps <[email protected]> 2013-11-18 23:00:18 PST ---
>From what I can tell, the template seems to use the name of the arguments as
part of a lambda, while declaring "args" itself. So when one of the parameters
is named args, this creates a duplicate definition and fails to compile.
Sample code:
import std.traits;
void foo(string[] args) { }
void main() {
alias T = ParameterDefaultValueTuple!foo;
}
Output:
Ognjen:~$ rdmd test.d
/Users/kapps/dev/dmd/phobos/std/traits.d(1093): Error: delegate
std.traits.ParameterDefaultValueTuple!(foo).Get!(0LU).__lambda2 parameter
__lambda2.args is already defined
/Users/kapps/dev/dmd/phobos/std/traits.d(1122): Error: template instance
std.traits.ParameterDefaultValueTuple!(foo).Get!(0LU) error instantiating
/Users/kapps/dev/dmd/phobos/std/traits.d(1125): instantiated from here:
Impl!()
test.d(20): instantiated from here: ParameterDefaultValueTuple!(foo)
/Users/kapps/dev/dmd/phobos/std/traits.d(1125): Error: template instance
std.traits.ParameterDefaultValueTuple!(foo).Impl!() error instantiating
test.d(20): instantiated from here: ParameterDefaultValueTuple!(foo)
test.d(20): Error: template instance
std.traits.ParameterDefaultValueTuple!(foo) error instantiating
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