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Matthew Dempsky b565d1ec16 cmd/cgo: use type aliases for #define type macros
Cgo's initial design for handling "#define foo int*" involved
rewriting "C.foo" to "*_Ctype_int" everywhere. But now that we have
type aliases, we can declare "type _Ctype_foo = *_Ctype_int" once, and
then rewrite "C.foo" to just "_Ctype_foo".

This is important for go/types's UsesCgo mode, where go/types needs to
be able to figure out a type for each C.foo identifier using only the
information written into _cgo_gotypes.go.

Fixes #38649.

Change-Id: Ia0f8c2d82df81efb1be5bc26195ea9154c0af871
Reviewed-on: https://go-review.googlesource.com/c/go/+/230037
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-05-01 18:01:28 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api all: remove scattered remnants of darwin/386 2020-04-08 18:37:38 +00:00
doc doc/go1.15: add 32-bit darwin removal and Resolver.LookupIP 2020-04-30 16:40:38 +00:00
lib/time lib/time, time/tzdata: update tz data to 2020a 2020-04-30 08:07:39 +00:00
misc cmd/cgo: use type aliases for #define type macros 2020-05-01 18:01:28 +00:00
src cmd/cgo: use type aliases for #define type macros 2020-05-01 18:01:28 +00:00
test cmd/compile: add indexed memory modification ops to amd64 2020-04-30 17:21:31 +00:00
.gitattributes build: force all Windows batch files to CRLF 2020-03-22 08:42:38 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A: Qais Patankar (individual CLA) 2020-04-25 23:01:43 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: add Andy Pan (individual CLA) 2020-04-05 22:58:00 +00:00
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