diff --git a/src/vim9expr.c b/src/vim9expr.c
index 883219e..0315f4f 100644
--- a/src/vim9expr.c
+++ b/src/vim9expr.c
@@ -394,39 +394,32 @@
 
     if (type->tt_type == VAR_OBJECT)
     {
-	for (int i = 0; i < cl->class_obj_member_count; ++i)
+	int m_idx = object_member_idx(cl, name, len);
+	if (m_idx >= 0)
 	{
-	    ocmember_T *m = &cl->class_obj_members[i];
-	    if (STRNCMP(name, m->ocm_name, len) == 0 && m->ocm_name[len] == NUL)
+	    ocmember_T *m = &cl->class_obj_members[m_idx];
+	    if (*name == '_' && !inside_class(cctx, cl))
 	    {
-		if (*name == '_' && !inside_class(cctx, cl))
-		{
-		    semsg(_(e_cannot_access_private_member_str), m->ocm_name);
-		    return FAIL;
-		}
-
-		*arg = name_end;
-		if (cl->class_flags & (CLASS_INTERFACE | CLASS_EXTENDED))
-		    return generate_GET_ITF_MEMBER(cctx, cl, i, m->ocm_type,
-									FALSE);
-		return generate_GET_OBJ_MEMBER(cctx, i, m->ocm_type, FALSE);
+		semsg(_(e_cannot_access_private_member_str), m->ocm_name);
+		return FAIL;
 	    }
+
+	    *arg = name_end;
+	    if (cl->class_flags & (CLASS_INTERFACE | CLASS_EXTENDED))
+		return generate_GET_ITF_MEMBER(cctx, cl, m_idx, m->ocm_type,
+									FALSE);
+	    return generate_GET_OBJ_MEMBER(cctx, m_idx, m->ocm_type, FALSE);
 	}
 
 	// Could be a function reference: "obj.Func".
-	for (int i = 0; i < cl->class_obj_method_count; ++i)
+	m_idx = object_method_idx(cl, name, len);
+	if (m_idx >= 0)
 	{
-	    ufunc_T *fp = cl->class_obj_methods[i];
-	    // Use a separate pointer to avoid that ASAN complains about
-	    // uf_name[] only being 4 characters.
-	    char_u *ufname = (char_u *)fp->uf_name;
-	    if (STRNCMP(name, ufname, len) == 0 && ufname[len] == NUL)
-	    {
-		if (type->tt_type == VAR_OBJECT
-		     && (cl->class_flags & (CLASS_INTERFACE | CLASS_EXTENDED)))
-		    return generate_FUNCREF(cctx, fp, cl, i, NULL);
-		return generate_FUNCREF(cctx, fp, NULL, 0, NULL);
-	    }
+	    ufunc_T *fp = cl->class_obj_methods[m_idx];
+	    if (type->tt_type == VAR_OBJECT
+		    && (cl->class_flags & (CLASS_INTERFACE | CLASS_EXTENDED)))
+		return generate_FUNCREF(cctx, fp, cl, m_idx, NULL);
+	    return generate_FUNCREF(cctx, fp, NULL, 0, NULL);
 	}
 
 	semsg(_(e_member_not_found_on_object_str_str), cl->class_name, name);
@@ -435,28 +428,22 @@
     {
 	// load class member
 	int idx;
-	for (idx = 0; idx < cl->class_class_member_count; ++idx)
+	ocmember_T *m = class_member_lookup(cl, name, len, &idx);
+	if (m != NULL)
 	{
-	    ocmember_T *m = &cl->class_class_members[idx];
-	    if (STRNCMP(name, m->ocm_name, len) == 0 && m->ocm_name[len] == NUL)
+	    // Note: type->tt_type = VAR_CLASS
+	    if ((cl->class_flags & CLASS_INTERFACE) != 0)
 	    {
-		// Note: type->tt_type = VAR_CLASS
-		if ((cl->class_flags & CLASS_INTERFACE) != 0)
-		{
-		    semsg(_(e_interface_static_direct_access_str),
-						cl->class_name, m->ocm_name);
-		    return FAIL;
-		}
-		if (*name == '_' && !inside_class(cctx, cl))
-		{
-		    semsg(_(e_cannot_access_private_member_str), m->ocm_name);
-		    return FAIL;
-		}
-		break;
+		semsg(_(e_interface_static_direct_access_str),
+			cl->class_name, m->ocm_name);
+		return FAIL;
 	    }
-	}
-	if (idx < cl->class_class_member_count)
-	{
+	    if (*name == '_' && !inside_class(cctx, cl))
+	    {
+		semsg(_(e_cannot_access_private_member_str), m->ocm_name);
+		return FAIL;
+	    }
+
 	    *arg = name_end;
 	    return generate_CLASSMEMBER(cctx, TRUE, cl, idx);
 	}
@@ -773,7 +760,7 @@
 		else
 		    gen_load = TRUE;
 	    }
-	    else if ((idx = class_member_index(*arg, len, &cl, cctx)) >= 0)
+	    else if ((idx = cctx_class_member_idx(cctx, *arg, len, &cl)) >= 0)
 	    {
 		// Referencing a class member without the class name.  Infer
 		// the class from the def function context.
@@ -1141,7 +1128,7 @@
 		goto theend;
 	    }
 	}
-	else if ((mi = class_method_index(name, varlen, &cl, cctx)) >= 0)
+	else if ((mi = cctx_class_method_idx(cctx, name, varlen, &cl)) >= 0)
 	{
 	    // Class method invocation without the class name.  The
 	    // generate_CALL() function expects the class type at the top of