digitalmars.D.learn - Can't "is null" an interface?!?! Incompatible types???
- Nick Sabalausky (Abscissa) (24/24) Mar 07 2018 ---------------------
- Nicholas Wilson (16/41) Mar 07 2018 That does seem odd.
- Nick Sabalausky (Abscissa) (5/21) Mar 08 2018 Interesting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to
- Nick Sabalausky (Abscissa) (2/8) Mar 08 2018 https://github.com/vibe-d/vibe.d/issues/2108
- Jacob Carlborg (8/12) Mar 08 2018 It's a struct in "v0.8.3-rc.1" [1]. In "v0.8.3-rc.1" the new
--------------------- import vibe.core.net; TCPConnection mySocket; void main() { auto b = mySocket is null; } --------------------- That's giving me: --------------------- Error: incompatible types for (mySocket) is (null): TCPConnection and typeof(null) --------------------- WTF?!?! The type in question (vibe.core.net.TCPConnection) is an interface: http://vibed.org/api/vibe.core.net/TCPConnection https://github.com/vibe-d/vibe.d/blob/master/core/vibe/core/net.d#L344 The following works just fine: --------------------- interface IFoo {} void main() { IFoo i; auto b = i is null; } ---------------------
Mar 07 2018
On Thursday, 8 March 2018 at 04:48:08 UTC, Nick Sabalausky (Abscissa) wrote:--------------------- import vibe.core.net; TCPConnection mySocket; void main() { auto b = mySocket is null; } --------------------- That's giving me: --------------------- Error: incompatible types for (mySocket) is (null): TCPConnection and typeof(null) --------------------- WTF?!?! The type in question (vibe.core.net.TCPConnection) is an interface: http://vibed.org/api/vibe.core.net/TCPConnection https://github.com/vibe-d/vibe.d/blob/master/core/vibe/core/net.d#L344 The following works just fine: --------------------- interface IFoo {} void main() { IFoo i; auto b = i is null; } ---------------------That does seem odd. --- /+dub.sdl: dependency "vibe-d" version="~>0.8.3-alpha.1" +/ import vibe.core.net; import std.stdio; TCPConnection mySocket; void main() { auto b = mySocket is null; writeln(b); } --- works fine on run.dlang.io
Mar 07 2018
On 03/08/2018 01:13 AM, Nicholas Wilson wrote:That does seem odd. --- /+dub.sdl: dependency "vibe-d" version="~>0.8.3-alpha.1" +/ import vibe.core.net; import std.stdio; TCPConnection mySocket; void main() { auto b = mySocket is null; writeln(b); } --- works fine on run.dlang.ioInteresting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to work on run.dlang.io). But it does seem to work for me if I use 'v0.8.3-alpha.1'. I wonder what could have changed to result in this?
Mar 08 2018
On 03/08/2018 03:04 AM, Nick Sabalausky (Abscissa) wrote:Interesting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to work on run.dlang.io). But it does seem to work for me if I use 'v0.8.3-alpha.1'. I wonder what could have changed to result in this?https://github.com/vibe-d/vibe.d/issues/2108
Mar 08 2018
On Thursday, 8 March 2018 at 08:04:54 UTC, Nick Sabalausky (Abscissa) wrote:Interesting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to work on run.dlang.io). But it does seem to work for me if I use 'v0.8.3-alpha.1'. I wonder what could have changed to result in this?It's a struct in "v0.8.3-rc.1" [1]. In "v0.8.3-rc.1" the new vibe-core package is the default configuration. [1] https://github.com/vibe-d/vibe-core/blob/master/source/vibe/core/net.d#L467 -- /Jacob Carlborg
Mar 08 2018