On 8/15/2016 5:17 AM, Dicebot wrote:
On 08/15/2016 02:52 PM, Walter Bright wrote:
On 8/15/2016 2:32 AM, Kagamin wrote:
On Sunday, 14 August 2016 at 20:02:35 UTC, Walter Bright wrote:
auto r = range;
You said that if a value (range in this case) is returned by scope,
its lifetime
is restricted to its expression, hence it can't be assigned to a
variable,
because the variable outlives the expression.
A very good question. If the functions parameters are 'return scope',
that means the returned value has the (smallest) scope if its 'return
scope' parameters. If there are no 'return scope' parameters, the scope
of the return value is limited to the expression.
Does that mean that a scope return in aggregate method will bind to
aggregate lifetime if method itself is annotated with scope too? For
example:
struct Container
{
scope Range asRange ( ) scope
{
return Range(&this.data);
}
}
If the method is annotated with scope, the scope applies to the 'this' pointer.
