6dec18cc75
Added new struct instInfo for information about an instantiation (of a generic function/method with gcshapes or concrete types). We use this to remember the dictionary param node, the nodes where sub-dictionaries need to be used, etc. The instInfo map replaces the Stencil map in Package. Added code to access sub-dictionary entries at the appropriate call sites. We are currently still calculating the corresponding main dictionary, even when we really only need a sub-dictionary. I'll clean that up in a follow-up CL. Added code to deal with "generic" closures (closures that reference some generic variables/types). We decided that closures will share the same dictionary as the containing function (accessing the dictionary via a closure variable). So, the getGfInfo function now traverses all the nodes of each closure in a function that it is analyzing, so that a function's dictionary has all the entries needed for all its closures as well. Also, the instInfo of a closure is largely shared with its containing function. A good test for generic closures already exists with orderedmap.go. Other improvements: - Only create sub-dictionary entries when the function/method call/value or closure actually has type params in it. Added new test file subdict.go with an example where a generic method has an instantiated method call that does not depend not have type params. Change-Id: I691b9dc024a89d2305fcf1d8ba8540e53c9d103f Reviewed-on: https://go-review.googlesource.com/c/go/+/331516 Trust: Dan Scales <danscales@google.com> Run-TryBot: Dan Scales <danscales@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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