Joe Groff 73e564428f stdlib/runtime: Stub out a mechanism for introspecting value structure. ...

Define a "Mirror" protocol with methods for querying the number of children a structured value has, getting the name and mirror for each of those children, and a string and "IDE representation" of the value, as needed by playgrounds and by our planned generic printing facility.

In the runtime, define a "reflect" function that can provide a Mirror for any object, either using a "Reflectable" protocol conformance if available, or falling back to a magic implementation in the runtime that grovels the type metadata. Stub out a bare minimum default implementation.

Swift SVN r14139

2014-02-20 08:26:27 +00:00

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