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fix segfault printing errors. add test case and improve messages.

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Fixes #338.

R=rsc
CC=golang-dev
https://golang.org/cl/163083
This commit is contained in:
Rob Pike 2009-12-02 10:41:28 -08:00
parent f6c0eba741
commit 114f73f822
2 changed files with 41 additions and 6 deletions
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12
src/pkg/rpc/server.go
View File

@ -214,28 +214,28 @@ func (server *serverType) register(rcvr interface{}) os.Error {
} }
argType, ok := mtype.In(1).(*reflect.PtrType); argType, ok := mtype.In(1).(*reflect.PtrType);
if !ok { if !ok {
log.Stderr(mname, "arg type not a pointer:", argType.String()); log.Stderr(mname, "arg type not a pointer:", mtype.In(1));
continue; continue;
} }
if _, ok := argType.Elem().(*reflect.StructType); !ok { if _, ok := argType.Elem().(*reflect.StructType); !ok {
log.Stderr(mname, "arg type not a pointer to a struct:", argType.String()); log.Stderr(mname, "arg type not a pointer to a struct:", argType);
continue; continue;
} }
replyType, ok := mtype.In(2).(*reflect.PtrType); replyType, ok := mtype.In(2).(*reflect.PtrType);
if !ok { if !ok {
log.Stderr(mname, "reply type not a pointer:", replyType.String()); log.Stderr(mname, "reply type not a pointer:", mtype.In(2));
continue; continue;
} }
if _, ok := replyType.Elem().(*reflect.StructType); !ok { if _, ok := replyType.Elem().(*reflect.StructType); !ok {
log.Stderr(mname, "reply type not a pointer to a struct:", replyType.String()); log.Stderr(mname, "reply type not a pointer to a struct:", replyType);
continue; continue;
} }
if !isPublic(argType.Elem().Name()) { if !isPublic(argType.Elem().Name()) {
log.Stderr(mname, "argument type not public:", argType.String()); log.Stderr(mname, "argument type not public:", argType);
continue; continue;
} }
if !isPublic(replyType.Elem().Name()) { if !isPublic(replyType.Elem().Name()) {
log.Stderr(mname, "reply type not public:", replyType.String()); log.Stderr(mname, "reply type not public:", replyType);
continue; continue;
} }
// Method needs one out: os.Error. // Method needs one out: os.Error.

35
src/pkg/rpc/server_test.go
View File

@ -216,3 +216,38 @@ func TestCheckBadType(t *testing.T) {
t.Error("expected error about type; got", err) t.Error("expected error about type; got", err)
} }
} }
type Bad int
type local struct{}
func (t *Bad) ArgNotPointer(args Args, reply *Reply) os.Error {
return nil
}
func (t *Bad) ArgNotPointerToStruct(args *int, reply *Reply) os.Error {
return nil
}
func (t *Bad) ReplyNotPointer(args *Args, reply Reply) os.Error {
return nil
}
func (t *Bad) ReplyNotPointerToStruct(args *Args, reply *int) os.Error {
return nil
}
func (t *Bad) ArgNotPublic(args *local, reply *Reply) os.Error {
return nil
}
func (t *Bad) ReplyNotPublic(args *Args, reply *local) os.Error {
return nil
}
// Check that registration handles lots of bad methods and a type with no suitable methods.
func TestRegistrationError(t *testing.T) {
err := Register(new(Bad));
if err == nil {
t.Errorf("expected error registering bad type")
}
}