Link constructors in WebIDL

[jyasskin]

Forked from https://github.com/w3c/respec/pull/373#discussion_r22060777. Link the [Constructor] extended attribute to <dfn title="InterfaceName" for="InterfaceName">, and give that the id InterfaceName-InterfaceName. I'd guess that [NamedConstructor=Name] should go to <dfn title="Name"> and have the id dom-Name, but @tabatkins may point out that Bikeshed does something different.

[tabatkins]

Not quite; you want to link it to <dfn title=Interface() for=Interface>. It's just a normal method, which happens to have the same name as the interface, is all. Named constructors are identical to constructors, except they have a different name.

The WHATWG standard for IDs suggests that it should be dom-Interface-Interface or dom-Interface-Name, same as any other method.

[shubhshrma]

@marcoscaceres what are starting steps with this in webidl.js? I'm trying to include this in my gsoc tasks list. Any starting points would be great.

[marcoscaceres]

@shubhshrma, basically, when we see a "constructor", it needs to create an entry in conf.definitionMap that can be linked to as: "InterfaceName.IntefaceName()", as described in https://github.com/w3c/respec/issues/394#issuecomment-71237207

You probably don't need to go into this level of detail in your proposal, just describe generally what needs to be fixed overall for WebIDL.

[marcoscaceres]

Blocked on whatwg/webidl#636

We might be getting new syntax for this.