net/rpc: document that the type must be exported, not just the methods

Fixes #10379.

Change-Id: Ia4cdda36ed57a06371f9ace7365ce9e215228487
Reviewed-on: https://go-review.googlesource.com/8654
Reviewed-by: Rob Pike <r@golang.org>

diff --git a/src/net/rpc/server.go b/src/net/rpc/server.go
index 83728d55a18b4e509a2e9e575ddce41381d2ac16..6e6e881917494effee20b2deae4d1057523bac97 100644 (file)
--- a/src/net/rpc/server.go
+++ b/src/net/rpc/server.go
@@ -13,6 +13,7 @@
        Only methods that satisfy these criteria will be made available for remote access;
        other methods will be ignored:
 
+               - the method's type is exported.
                - the method is exported.
                - the method has two arguments, both exported (or builtin) types.
                - the method's second argument is a pointer.
@@ -216,7 +217,7 @@ func isExportedOrBuiltinType(t reflect.Type) bool {
 
 // Register publishes in the server the set of methods of the
 // receiver value that satisfy the following conditions:
-//     - exported method
+//     - exported method of exported type
 //     - two arguments, both of exported type
 //     - the second argument is a pointer
 //     - one return value, of type error