Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2020-08-20T15:23:51+00:00 2020-08-20T15:23:51+00:00 Tim Foley tfoleyNV@users.noreply.github.com 2020-08-20T15:23:51+00:00 urn:sha1:11748a75e66c2bd3fa7ef7635fd35363465f599c The basic idea is that if you have a namespace: namespace MyCoolNamespace { void f() { ... } ... } then you can bring the declarations from that namespace into scope with: using MyCoolNamespace; f(); The `using` construct is allowed in any scope where declarations are allowed. As an additional feature, the construct allows and then ignores the keyword `namespace` if it occurs right after `using`: using namespace MyCoolNamespace; Note that unlike in C++, `using` a namespace inside another namespace doesn't implicitly make the symbols available to clients of that namespace: namespace hidden { void secret() {...} ... } namespace api { using hidden; ... } api.secret(); // ERROR: `secret()` isn't a member of `api` The implementation of this feature was relatively simple, although it does leave out more advanced features that might be desirable in the future: * No support for `using MCN = MyCoolNamespace` sorts of tricks to define a short name * No support for `using` anything that isn't a namespace (e.g., to make the members of a type available without qualification) * No support for cases where multiple visible modules have a namespace of the same name (or dealing with overloaded namespaces in general)