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cmd/link: handle types as converted to interface when dynlink

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When using plugins, a type (whose value) may be pass to a plugin
and get converted to interface there, or vice versa. We need to
treat the type as potentially converted to interface, and retain
its methods.

Should fix #44586.

Change-Id: I80dd35e68baedaa852a317543ccd78d94628d13b
Reviewed-on: https://go-review.googlesource.com/c/go/+/296709
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
This commit is contained in:
Cherry Zhang 2021-02-25 20:01:53 -05:00
parent 23943a6737
commit a655208c9e
5 changed files with 66 additions and 8 deletions
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15
misc/cgo/testplugin/plugin_test.go
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@ -201,12 +201,11 @@ func TestMethod(t *testing.T) {
// Exported symbol's method must be live.
goCmd(t, "build", "-buildmode=plugin", "-o", "plugin.so", "./method/plugin.go")
goCmd(t, "build", "-o", "method.exe", "./method/main.go")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, "./method.exe")
out, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, out)
}
run(t, "./method.exe")
}
func TestMethod2(t *testing.T) {
goCmd(t, "build", "-buildmode=plugin", "-o", "method2.so", "./method2/plugin.go")
goCmd(t, "build", "-o", "method2.exe", "./method2/main.go")
run(t, "./method2.exe")
}