http://d.puremagic.com/issues/show_bug.cgi?id=7087
Summary: Produce compiler diagnostic when escaping slice to
local static array
Product: D
Version: unspecified
Platform: x86_64
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Ali Cehreli <[email protected]> 2011-12-09 15:34:52 PST ---
Although both are "escaping reference to local" data, only one of the following
functions produces a compilation error.
int * ret_elem_ptr()
{
int[3] a;
return &a[0]; // GOOD: compilation ERROR
}
int[] ret_slice()
{
int[3] a;
return a[]; // BAD: no help
}
void main()
{}
It would be nice to receive a compilation error when returning a slice as well.
This would catch bugs, because programmers rely on slices' keeping their data
alive in most situation. Unfortunately that's not the case here.
Ali
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