Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/test/typeparam/issue50417b.go b/test/typeparam/issue50417b.go
new file mode 100644
index 0000000..1c803b0
--- /dev/null
+++ b/test/typeparam/issue50417b.go
@@ -0,0 +1,58 @@
+// run
+
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+func main() {}
+
+// Field accesses through type parameters are disabled
+// until we have a more thorough understanding of the
+// implications on the spec. See issue #51576.
+
+/*
+import "fmt"
+
+type MyStruct struct {
+	b1, b2 string
+	E
+}
+
+type E struct {
+	val int
+}
+
+type C interface {
+	~struct {
+		b1, b2 string
+		E
+	}
+}
+
+func f[T C]() T {
+	var x T = T{
+		b1: "a",
+		b2: "b",
+	}
+
+	if got, want := x.b2, "b"; got != want {
+		panic(fmt.Sprintf("got %d, want %d", got, want))
+	}
+	x.b1 = "y"
+	x.val = 5
+
+	return x
+}
+
+func main() {
+	x := f[MyStruct]()
+	if got, want := x.b1, "y"; got != want {
+		panic(fmt.Sprintf("got %d, want %d", got, want))
+	}
+	if got, want := x.val, 5; got != want {
+		panic(fmt.Sprintf("got %d, want %d", got, want))
+	}
+}
+*/