diff --git a/cmd/v/compile_options.v b/cmd/v/compile_options.v
index d94ded7f73..cc76381c28 100644
--- a/cmd/v/compile_options.v
+++ b/cmd/v/compile_options.v
@@ -37,7 +37,7 @@ pub fn new_v(args []string) &compiler.V {
 		exit(1)
 	}
 	mut out_name := cmdline.option(args, '-o', '')
-	mut dir := args.last()
+	mut dir := args[args.len-1]//.last()
 	if 'run' in args {
 		args_after_run := cmdline.only_non_options( cmdline.options_after(args,['run']) )
 		dir = if args_after_run.len>0 { args_after_run[0] } else { '' }
diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index 792d88711f..6a5ddbd31c 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -50,6 +50,7 @@ pub fn (c mut Checker) check_struct_init(struct_init ast.StructInit) table.Type
 	// panic('')
 	// }
 	typ_sym := c.table.get_type_symbol(struct_init.typ)
+	// println('check struct $typ_sym.name')
 	match typ_sym.kind {
 		.placeholder {
 			c.error('unknown struct: $typ_sym.name', struct_init.pos)
@@ -161,6 +162,10 @@ pub fn (c mut Checker) call_expr(call_expr ast.CallExpr) table.Type {
 			if arg_typ_sym.kind == .string && typ_sym.has_method('str') {
 				continue
 			}
+			// TODO const bug
+			if typ_sym.kind == .void && arg_typ_sym.kind == .string {
+				continue
+			}
 			c.error('!cannot use type `$typ_sym.name` as type `$arg_typ_sym.name` in argument ${i+1} to `$fn_name`', call_expr.pos)
 		}
 	}
@@ -199,6 +204,10 @@ pub fn (c mut Checker) selector_expr(selector_expr ast.SelectorExpr) table.Type
 		}
 	}
 	if typ_sym.kind != .struct_ {
+		if field_name == 'default_mode' {
+			// TODO
+			return table.bool_type
+		}
 		c.error('`$typ_sym.name` is not a struct', selector_expr.pos)
 	}
 	else {
diff --git a/vlib/v/parser/parser.v b/vlib/v/parser/parser.v
index 160f75144c..118d32a42c 100644
--- a/vlib/v/parser/parser.v
+++ b/vlib/v/parser/parser.v
@@ -56,7 +56,7 @@ pub fn parse_stmt(text string, table &table.Table, scope &ast.Scope) ast.Stmt {
 		pref: &pref.Preferences{}
 		scope: scope
 		// scope: &ast.Scope{start_pos: 0, parent: 0}
-
+		
 	}
 	p.init_parse_fns()
 	p.read_first_token()
@@ -320,7 +320,7 @@ pub fn (p mut Parser) stmt() ast.Stmt {
 			return ast.ExprStmt{
 				expr: expr
 				// typ: typ
-
+				
 			}
 		}
 	}
@@ -640,7 +640,7 @@ pub fn (p mut Parser) expr(precedence int) (ast.Expr,table.Type) {
 		.key_none {
 			p.next()
 			typ = table.none_type
-			node = ast.None {}
+			node = ast.None{}
 		}
 		.key_sizeof {
 			p.next() // sizeof
@@ -705,13 +705,7 @@ pub fn (p mut Parser) expr(precedence int) (ast.Expr,table.Type) {
 			node = p.dot_expr(node, typ)
 		}
 		else if p.tok.kind == .lsbr {
-			node = p.index_expr(node) // , typ)
-			/*
-			ie_node,ie_typ := p.index_expr(node, typ)
-			node = ie_node
-			typ = ie_typ
-			*/
-
+			node = p.index_expr(node)
 		}
 		else if p.tok.kind == .key_as {
 			p.next()
@@ -886,6 +880,7 @@ fn (p &Parser) is_addative() bool {
 }
 */
 // `.green`
+// `pref.BuildMode.default_mode`
 fn (p mut Parser) enum_val() (ast.Expr,table.Type) {
 	p.check(.dot)
 	name := p.check_name()
@@ -893,7 +888,7 @@ fn (p mut Parser) enum_val() (ast.Expr,table.Type) {
 	node = ast.EnumVal{
 		name: name
 	}
-	return node,table.bool_type
+	return node,table.int_type
 }
 
 fn (p mut Parser) for_statement() ast.Stmt {
@@ -1075,10 +1070,10 @@ fn (p mut Parser) if_expr() ast.Expr {
 		stmts: stmts
 		else_stmts: else_stmts
 		// typ: typ
-
+		
 		pos: pos
 		// left: left
-
+		
 	}
 	return node
 }
@@ -1466,10 +1461,10 @@ fn (p mut Parser) var_decl() ast.VarDecl {
 	node := ast.VarDecl{
 		name: name
 		expr: expr // p.expr(token.lowest_prec)
-
+		
 		is_mut: is_mut
 		// typ: typ
-
+		
 		pos: p.tok.position()
 	}
 	p.scope.register_var(node)
@@ -1588,7 +1583,7 @@ fn (p mut Parser) match_expr() ast.Expr {
 		blocks: blocks
 		match_exprs: match_exprs
 		// typ: typ
-
+		
 		cond: cond
 	}
 	return node
diff --git a/vlib/v/table/table.v b/vlib/v/table/table.v
index 8d5d35d046..b419bb972a 100644
--- a/vlib/v/table/table.v
+++ b/vlib/v/table/table.v
@@ -222,7 +222,7 @@ pub fn (t mut Table) register_type_symbol(typ TypeSymbol) int {
 		match ex_type.kind {
 			.placeholder {
 				// override placeholder
-				println('overriding type placeholder `$typ.name`')
+				// println('overriding type placeholder `$typ.name`')
 				t.types[existing_idx] = {
 					typ |
 					methods:ex_type.methods
@@ -394,4 +394,3 @@ pub fn (t &Table) check(got, expected Type) bool {
 	}
 	return true
 }
-