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Any easy way to check if an object have inherited an interface?
Jul 22, 2019
solidstate1991
Jul 22, 2019
rikki cattermole
Jul 23, 2019
XavierAP
July 22, 2019
Gravatar of solidstate1991Posted by solidstate1991Reply
solidstate1991
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It seems that I've to write my own function that searches in the given object's classinfo.interfaces since I couldn't find anything related in Phobos.
July 23, 2019
Gravatar of rikki cattermolePosted by rikki cattermole
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rikki cattermole
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On 23/07/2019 9:34 AM, solidstate1991 wrote:
> It seems that I've to write my own function that searches in the given object's classinfo.interfaces since I couldn't find anything related in Phobos.

if (Foo foo = cast(Bar)bar) {

}
July 23, 2019
Gravatar of XavierAPPosted by XavierAP
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On Monday, 22 July 2019 at 21:34:18 UTC, solidstate1991 wrote:
> It seems that I've to write my own function that searches in the given object's classinfo.interfaces since I couldn't find anything related in Phobos.

Do you mean...?

interface I {}
class C : I {}
void main()
{
	C c1;
	writeln(is(typeof(c1) : I));
}

No need for Phobos, core language:
https://dlang.org/spec/expression.html#IsExpression
https://dlang.org/spec/declaration.html#Typeof