From b4c93349e8f329e02b72165c627efec8b1d44e55 Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Wed, 6 May 2020 12:32:44 +0200
Subject: [PATCH] checker: fix interface name check

---
 vlib/v/checker/checker.v | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index 596b46fffa..6b41eb2947 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -1477,11 +1477,12 @@ fn (mut c Checker) stmt(node ast.Stmt) {
 		// ast.HashStmt {}
 		ast.Import {}
 		ast.InterfaceDecl {
-			if !it.name[0].is_capital() {
+			name := it.name.after('.')
+			if !name[0].is_capital() {
 				pos := token.Position{
 					line_nr: it.pos.line_nr
 					pos: it.pos.pos + 'interface'.len
-					len: it.name.len
+					len: name.len
 				}
 				c.error('interface name must begin with capital letter', pos)
 			}