diff --git a/cmd/v/simple_tool.v b/cmd/v/simple_tool.v
index f595554746..e69e463d7a 100644
--- a/cmd/v/simple_tool.v
+++ b/cmd/v/simple_tool.v
@@ -20,7 +20,6 @@ fn launch_tool(is_verbose bool, tname string, cmdname string) {
 		tname_index = os.args.len
 	}
 	mut compilation_options := os.args[1..tname_index].clone()
-	//f  := os.args.join(' ')
 	tool_args := os.args[1..].join(' ')
 	tool_exe := path_of_executable(os.realpath('$vroot/cmd/tools/$tname'))
 	tool_source := os.realpath('$vroot/cmd/tools/${tname}.v')
diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index bdf60f3959..7758a18146 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -212,21 +212,23 @@ pub fn (c mut Checker) call_expr(call_expr ast.CallExpr) table.Type {
 pub fn (c mut Checker) check_method_call_expr(method_call_expr ast.MethodCallExpr) table.Type {
 	typ := c.expr(method_call_expr.expr)
 	typ_sym := c.table.get_type_symbol(typ)
-	if method := typ_sym.find_method(method_call_expr.name) {
+	name := method_call_expr.name
+	if method := typ_sym.find_method(name) {
 		return method.return_type
 	}
+	if typ_sym.kind == .array && name in ['filter', 'clone'] {
+		// info := typ_sym.info as table.Array
+		return typ // info.elem_type
+	}
 	// check parent
 	if typ_sym.parent_idx != 0 {
 		parent := &c.table.types[typ_sym.parent_idx]
-		if method := parent.find_method(method_call_expr.name) {
+		if method := parent.find_method(name) {
+			// println('got method $name, returning')
 			return method.return_type
 		}
 	}
-	if typ_sym.kind == .array && method_call_expr.name == 'filter' {
-		// info := typ_sym.info as table.Array
-		return typ // info.elem_type
-	}
-	c.error('type `$typ_sym.name` has no method `$method_call_expr.name`', method_call_expr.pos)
+	c.error('type `$typ_sym.name` has no method `$name`', method_call_expr.pos)
 	return table.void_type
 }
 
diff --git a/vlib/v/gen/tests/1.vv b/vlib/v/gen/tests/1.vv
index 83b7adb1c5..1a7a629c6f 100644
--- a/vlib/v/gen/tests/1.vv
+++ b/vlib/v/gen/tests/1.vv
@@ -71,6 +71,9 @@ fn foo(a int) {
 	q := true || false
 	b2 := bools[0] || true
 	b3 := get_bool() || true
+	//cloned = nums.clone()
+	//cloned1 := cloned[0]
+	//println(cloned1 == 1)
 }
 
 fn get_int(a string) int {
diff --git a/vlib/v/parser/fn.v b/vlib/v/parser/fn.v
index 5f2a6207d2..cbc9fa21a3 100644
--- a/vlib/v/parser/fn.v
+++ b/vlib/v/parser/fn.v
@@ -18,6 +18,7 @@ pub fn (p mut Parser) call_expr(is_c bool, mod string) ast.CallExpr {
 		name: fn_name
 		args: args
 		// tok: tok
+		
 		pos: tok.position()
 		is_c: is_c
 	}
@@ -131,8 +132,10 @@ fn (p mut Parser) fn_decl() ast.FnDecl {
 		typ = p.parse_type()
 	}
 	p.return_type = typ
+	// Register
 	if is_method {
 		type_sym := p.table.get_type_symbol(rec_type)
+		// p.warn('reg method $type_sym.name . $name ()')
 		ok := p.table.register_method(type_sym, table.Fn{
 			name: name
 			args: args
diff --git a/vlib/v/table/table.v b/vlib/v/table/table.v
index 0b697a1d09..15f0cd4551 100644
--- a/vlib/v/table/table.v
+++ b/vlib/v/table/table.v
@@ -86,6 +86,7 @@ pub fn (t mut Table) register_fn(new_fn Fn) {
 pub fn (t &Table) register_method(typ &TypeSymbol, new_fn Fn) bool {
 	// println('register method `$new_fn.name` type=$typ.name idx=$typ.idx')
 	// println('register method `$new_fn.name` type=$typ.name')
+	// TODO mut << bug
 	mut t1 := typ
 	mut methods := typ.methods
 	methods << new_fn