Re: When is exception throwing @nogc with -dip1008?
On 6/22/20 10:36 AM, Per Nordlöw wrote: On Monday, 22 June 2020 at 14:10:15 UTC, Mike Parker wrote: https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1008.md The spec says: " The only place a refcounted Throwable is ever created is when the following statement is in the user code: throw new E(string); " What other typical throw cases will _not_ be allocated on the GC? My understanding is none. So for example: auto ex = new Exception(string); // heap allocated throw ex; It entirely depends on you immediately throwing the exception because otherwise, you may have stored a pointer elsewhere. Because classes (exceptions) cannot be truly refcounted on copy, you need a very controlled environment to ensure the ref-counting works. -Steve
Re: When is exception throwing @nogc with -dip1008?
On Monday, 22 June 2020 at 14:10:15 UTC, Mike Parker wrote: https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1008.md The spec says: " The only place a refcounted Throwable is ever created is when the following statement is in the user code: throw new E(string); " What other typical throw cases will _not_ be allocated on the GC?
Re: When is exception throwing @nogc with -dip1008?
On Monday, 22 June 2020 at 13:59:22 UTC, Per Nordlöw wrote: I can't find any docs on DIP-1008. The link https://github.com/dlang/DIPs/blob/master/DIPs/DIP1008.md given in the release notes here Ref: https://dlang.org/changelog/2.079.0.html#dip1008 is broken. https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1008.md
Re: When is exception throwing @nogc with -dip1008?
On Monday, 22 June 2020 at 13:59:22 UTC, Per Nordlöw wrote: I can't find any docs on DIP-1008. The link https://github.com/dlang/DIPs/blob/master/DIPs/DIP1008.md is broken. Found the postponed spec here: https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1008.md
When is exception throwing @nogc with -dip1008?
Under what circumstances is exception throwing currently `@nogc`
if the dmd flag `-dip1008` is used?
For instance in code such as:
void main() @nogc
{
throw new Exception("I'm @nogc now");
}
Are all exceptions forced to be statically allocated when
-dip1008 is used or can exception throwing be `@nogc` only when
certain conditions hold?
I can't find any docs on DIP-1008. The link
https://github.com/dlang/DIPs/blob/master/DIPs/DIP1008.md
given in the release notes here
Ref: https://dlang.org/changelog/2.079.0.html#dip1008
is broken.
