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Alan Donovan 46f60d6506 cmd/cgo: reject attempts to declare methods on C types
This change causes cgo to emit an error (with the same
message as the compiler) when it encounters a declaration
of a method whose receiver type is C.T or *C.T.

Conceptually, C is another package, but unfortunately
the desugaring of C.T is a type within the same package,
causing the previous behavior to accept invalid input.

It is likely that at least some users are intentionally
exploiting this behavior, so this may break their build.
We should mention it in the release notes.

Fixes #57926

Change-Id: I513cffb7e13bc93d08a07b7e61301ac1762fd42d
Reviewed-on: https://go-review.googlesource.com/c/go/+/490819
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-05-02 12:55:28 +00:00
.github doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
api go/ast: add IsGenerated(*File) predicate 2023-04-25 13:57:33 +00:00
doc doc: fix typo in Go 1.21 release notes 2023-04-24 18:13:34 +00:00
lib/time time/tzdata: generate zip constant during cmd/dist 2023-01-17 22:30:53 +00:00
misc misc/android: copy entire modules in module mode 2023-05-01 15:30:35 +00:00
src cmd/cgo: reject attempts to declare methods on C types 2023-05-02 12:55:28 +00:00
test cmd/link: put zero-sized data symbols at same address as runtime.zerobase 2023-04-28 18:35:43 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore cmd/dist: refactor generated cgo-support logic 2023-04-20 17:26:46 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
go.env cmd/go: introduce GOROOT/go.env and move proxy/sumdb config there 2023-01-17 23:10:39 +00:00
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00

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