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Dan Scales 600b7b431b [dev.typeparams] cmd/compile: handle meth expressions on typeparams
Rewrite a method expression such as 'T.String' (where T is type param
and String is part of its type bound Stringer) as:

func(rcvr T, other params...) {
    return Stringer(rcvr).String(other params...)
}

New function buildClosure2 to create the needed closure. The conversion
Stringer(rcvr) uses the dictionary in the outer function.

For a method expression like 'Test[T].finish' (where finish is a method
of Test[T]), we can already deal with this in buildClosure(). We just
need fix transformDot() to allow the method lookup to fail, since shapes
have no methods on them. That's fine, since for any instantiated
receiver type, we always use the methods on the generic base type.

Also removed the OMETHEXPR case in the main switch of node(), which
isn't needed any (and removes one more potential unshapify).

Also, fixed two small bugs with handling closures that have generic
params or generic captured variables. Need to set the instInfo for the
closure in the subst struct when descending into a closure during
genericSubst() and was missing initializing the startItabConv and gfInfo
fields in the closure info.

Change-Id: I6dadedd1378477936a27c9c544c014cd2083cfb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/338129
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>
2021-07-29 21:58:06 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api reflect: add Value.CanConvert 2021-07-21 19:25:48 +00:00
doc doc: clarify non-nil zero length slice to array pointer conversion 2021-07-26 17:47:47 +00:00
lib/time lib/time, time/tzdata: update tzdata to 2021a 2021-01-25 16:08:46 +00:00
misc [dev.typeparams] all: add GOEXPERIMENT=unified knob 2021-06-17 09:09:02 +00:00
src [dev.typeparams] cmd/compile: handle meth expressions on typeparams 2021-07-29 21:58:06 +00:00
test [dev.typeparams] cmd/compile: handle meth expressions on typeparams 2021-07-29 21:58:06 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: update name 2021-06-01 17:08:12 +00:00
codereview.cfg [dev.typeparams] all: update parent repository 2021-02-18 22:34:52 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: update name 2021-06-01 17:08:12 +00:00
LICENSE
PATENTS
README.md README: pull gopher image from website 2021-02-16 18:25:10 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

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