diff --git a/examples/gg2.v b/examples/gg2.v
new file mode 100644
index 0000000000..259381237e
--- /dev/null
+++ b/examples/gg2.v
@@ -0,0 +1,50 @@
+module main
+
+import gg2 // as gg
+import gx
+
+const (
+	win_width = 600
+	win_height = 300
+)
+
+struct App {
+mut:
+	gg &gg2.GG
+}
+
+fn main() {
+	mut app := &App{}
+	app.gg = gg2.new_context({
+		bg_color: gx.white
+		width: win_width
+		height: win_height
+		use_ortho: true // This is needed for 2D drawing
+		create_window: true
+		window_title: 'Empty window'
+		frame_fn: frame
+		user_data: app
+		font_path: 'examples/tetris/RobotoMono-Regular.ttf'
+	})
+	app.gg.run()
+}
+
+fn frame(user_data voidptr) {
+	mut app := &App(user_data)
+	mut gg := app.gg
+	gg.begin()
+	if gg.fons == 0 {
+		gg.init_font()
+	}
+	app.draw()
+	C.sfons_flush(gg.fons)
+	gg.end()
+}
+
+fn (app &App) draw() {
+	app.gg.draw_text_def(200,20, 'hello world!')
+	app.gg.draw_text_def(300,300, 'привет')
+	app.gg.draw_rect(10, 10, 100, 30, gx.blue)
+	app.gg.draw_empty_rect(10, 150, 80, 40, gx.green)
+}
+
diff --git a/examples/sokol_examples/fonts.v b/examples/sokol_examples/fonts.v
index 0f01c51d3d..169d257a00 100644
--- a/examples/sokol_examples/fonts.v
+++ b/examples/sokol_examples/fonts.v
@@ -52,7 +52,7 @@ fn init(user_data voidptr) {
 	})
 	s := &C.sgl_desc_t{}
 	C.sgl_setup(s)
-	state.fons = C.sfons_create(512, 512, 1)
+	state.fons = sfons.create(512, 512, 1)
 	// or use DroidSerif-Regular.ttf
 	if bytes := os.read_bytes(os.resource_abs_path('assets/ProggyTiny.ttf')) {
 		println('loaded font: $bytes.len')
diff --git a/vlib/builtin/array_test.v b/vlib/builtin/array_test.v
index dc7222da84..e1b682b756 100644
--- a/vlib/builtin/array_test.v
+++ b/vlib/builtin/array_test.v
@@ -561,3 +561,12 @@ fn test_push_many_self() {
         assert actual_arr[i] == expected_arr[i]
     }
 }
+
+fn test_for() {
+	nums := [1,2,3]
+	mut sum := 0
+	for num <- nums {
+		sum += num
+	}
+	assert sum == 6
+}
diff --git a/vlib/compiler/aparser.v b/vlib/compiler/aparser.v
index e0d7900923..8d813b5c19 100644
--- a/vlib/compiler/aparser.v
+++ b/vlib/compiler/aparser.v
@@ -446,7 +446,7 @@ fn (p mut Parser) parse(pass Pass) {
 	}
 	p.fgen_nl()
 	p.builtin_mod = p.mod == 'builtin'
-	p.can_chash = p.mod in ['ui', 'uiold', 'darwin', 'clipboard', 'webview'] // TODO tmp remove
+	p.can_chash = p.mod in ['gg2', 'ui', 'uiold', 'darwin', 'clipboard', 'webview'] // TODO tmp remove
 	// Import pass - the first and the smallest pass that only analyzes imports
 	// if we are a building module get the full module name from v.mod
 	fq_mod := if p.pref.build_mode == .build_module && p.v.mod.ends_with(p.mod) { p.v.mod }
@@ -544,10 +544,9 @@ fn (p mut Parser) parse(pass Pass) {
 			}
 			.key_global {
 				if !p.pref.translated && !p.pref.is_live && !p.builtin_mod && !p.pref.building_v &&
-					p.mod != 'ui' && p.mod != 'uiold' && !os.getwd().contains('/volt') &&
+					p.mod != 'ui' && p.mod != 'gg2' && p.mod != 'uiold' && !os.getwd().contains('/volt') &&
 					!p.pref.enable_globals {
 					p.error('use `v --enable-globals ...` to enable globals')
-					// p.error('__global is only allowed in translated code')
 				}
 				p.next()
 				p.fspace()
diff --git a/vlib/compiler/for.v b/vlib/compiler/for.v
index 380ec2f914..8910a2fd6e 100644
--- a/vlib/compiler/for.v
+++ b/vlib/compiler/for.v
@@ -128,10 +128,11 @@ fn (p mut Parser) for_st() {
 		}
 	}
 	// `for val in vals`
-	else if p.peek() == .key_in {
+	else if p.peek() == .key_in || p.peek() == .left_arrow {
 		val := p.check_name()
 		p.fspace()
-		p.check(.key_in)
+		//p.check(.key_in)
+		p.next()
 		p.fspace()
 		tmp := p.get_tmp()
 		mut typ,expr := p.tmp_expr()
diff --git a/vlib/compiler/scanner.v b/vlib/compiler/scanner.v
index fc9ba3c351..47de215ef8 100644
--- a/vlib/compiler/scanner.v
+++ b/vlib/compiler/scanner.v
@@ -549,6 +549,11 @@ fn (s mut Scanner) scan() ScanRes {
 				s.pos++
 				return scan_res(.left_shift, '')
 			}
+			else if nextc == `-` {
+				s.pos++
+				println("GOT ARR")
+				return scan_res(.left_arrow, '')
+			}
 			else {
 				return scan_res(.lt, '')
 			}
diff --git a/vlib/compiler/table.v b/vlib/compiler/table.v
index 1224a7039b..90386ca6ee 100644
--- a/vlib/compiler/table.v
+++ b/vlib/compiler/table.v
@@ -705,6 +705,9 @@ fn (p mut Parser) check_types2(got_, expected_ string, throw bool) bool {
 	if got.starts_with('fn ') && (expected.ends_with('fn') || expected.ends_with('Fn')) {
 		return true
 	}
+	if got.starts_with('fn ') && expected.starts_with('fn ') {
+		return true
+	}
 	// Allow pointer arithmetic
 	if expected == 'void*' && got == 'int' {
 		return true
diff --git a/vlib/compiler/tests/struct_test.v b/vlib/compiler/tests/struct_test.v
index 4e7eccdb86..1654a64094 100644
--- a/vlib/compiler/tests/struct_test.v
+++ b/vlib/compiler/tests/struct_test.v
@@ -167,6 +167,10 @@ __global:
 	f int 	  // public and mutable both inside and outside parent module
 }
 
+fn fooo(){
+	a:=AttrTest{1,2,3,4,5,6}
+}
+
 /*
 [typedef]
 struct C.fixed {
diff --git a/vlib/compiler/token.v b/vlib/compiler/token.v
index 6431a8a2bb..50e1cb7b8b 100644
--- a/vlib/compiler/token.v
+++ b/vlib/compiler/token.v
@@ -36,6 +36,7 @@ enum TokenKind {
 	semicolon
 	colon
 	arrow // =>
+	left_arrow // <-
 	amp
 	hash
 	dollar
diff --git a/vlib/gg/gg.v b/vlib/gg/gg.v
index 32977b78df..ce878ced7e 100644
--- a/vlib/gg/gg.v
+++ b/vlib/gg/gg.v
@@ -4,12 +4,14 @@
 
 module gg
 
-import stbi
-import glm
-import gl
-import gx
-import os
-import glfw
+import (
+	stbi
+	glm
+	gl
+	gx
+	os
+	glfw
+)
 
 pub struct Vec2 {
 pub:
diff --git a/vlib/gg2/gg.v b/vlib/gg2/gg.v
new file mode 100644
index 0000000000..ffdbd81644
--- /dev/null
+++ b/vlib/gg2/gg.v
@@ -0,0 +1,216 @@
+// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module gg2
+
+import (
+	glm
+	gx
+	os
+	sokol
+	sokol.sapp
+	sokol.sgl
+	sokol.gfx
+	sokol.sfons
+)
+const (
+	default_font_size = 24
+)
+
+pub struct Config {
+pub:
+	width         int
+	height        int
+	use_ortho     bool
+	retina        bool
+	resizable     bool
+	user_data     voidptr
+	font_size     int
+	font_path     string
+	create_window bool
+	// window_user_ptr voidptr
+	window_title  string
+	always_on_top bool
+	scale         int
+	frame_fn      fn(voidptr)
+	bg_color      gx.Color
+}
+
+pub struct GG {
+	scale      int // retina = 2 , normal = 1
+pub mut:
+	width      int
+	height     int
+	clear_pass C.sg_pass_action
+	window     C.sapp_desc
+	render_fn  fn()
+	//////////// font fields
+	fons &C.FONScontext
+	font_normal int
+}
+
+// TODO remove globals
+__global g_fons &C.FONScontext
+__global g_font_normal int
+__global g_font_path string
+
+fn init_sokol_window() {
+	desc := sg_desc{
+		mtl_device: C.sapp_metal_get_device()
+		mtl_renderpass_descriptor_cb: sapp_metal_get_renderpass_descriptor
+		mtl_drawable_cb: sapp_metal_get_drawable
+		d3d11_device: sapp_d3d11_get_device()
+		d3d11_device_context: sapp_d3d11_get_device_context()
+		d3d11_render_target_view_cb: sapp_d3d11_get_render_target_view
+		d3d11_depth_stencil_view_cb: sapp_d3d11_get_depth_stencil_view
+	}
+	gfx.setup(&desc)
+	sgl_desc := sgl_desc_t{}
+	sgl.setup(&sgl_desc)
+	g_fons = sfons.create(512, 512, 1)
+	if g_font_path.len == 0 || !os.exists(g_font_path) {
+		println('failed to load font "$g_font_path"')
+		return
+	}
+	bytes := os.read_bytes(g_font_path) or {
+		println('failed to load font "$g_font_path"')
+		return
+	}
+	g_font_normal = C.fonsAddFontMem(g_fons, 'sans', bytes.data, bytes.len, false)
+}
+
+pub fn new_context(cfg Config) &GG {
+	//C.printf('new_context() %p\n', cfg.user_data)
+	window := sapp_desc{
+		user_data: cfg.user_data
+		init_userdata_cb: init_sokol_window
+		frame_userdata_cb: cfg.frame_fn
+		window_title: cfg.window_title.str
+		html5_canvas_name: cfg.window_title.str
+		width: cfg.width
+		height: cfg.height
+		high_dpi: true
+	}
+	g_font_path = cfg.font_path
+	if cfg.use_ortho {}
+	else {}
+	return &GG{
+		width: cfg.width
+		height: cfg.height
+		window: window
+		clear_pass: gfx.create_clear_pass(f32(cfg.bg_color.r) / 255.0, f32(cfg.bg_color.g) / 255.0, f32(cfg.bg_color.b) / 255.0, 1.0)
+		scale: 1 // scale
+		fons:0
+	}
+}
+
+pub fn (gg &GG) draw_text(x, y int, text string, cfg gx.TextCfg) {
+	gg.fons.set_font(gg.font_normal)
+	gg.fons.set_size(cfg.size)
+	ascender := 0.0
+	descender := 0.0
+	lh := 0.0
+	gg.fons.vert_metrics(&ascender, &descender, &lh)
+	color:= C.sfons_rgba(cfg.color.r, cfg.color.g, cfg.color.b, 255)
+	C.fonsSetColor(gg.fons, color)
+	C.fonsDrawText(gg.fons, x, y, text.str, 0)
+}
+
+pub fn (ctx &GG) draw_text_def(x, y int, text string) {
+	cfg := gx.TextCfg {
+		color: gx.Black
+		size: default_font_size
+		align: gx.ALIGN_LEFT
+	}
+	ctx.draw_text(x, y, text, cfg)
+}
+
+pub fn (gg mut GG) init_font() {
+	// TODO
+	gg.fons =g_fons
+	gg.font_normal=g_font_normal
+}
+
+pub fn (gg &GG) run() {
+	sapp.run(&gg.window)
+}
+
+pub fn (ctx &GG) draw_rect(x, y, w, h f32, c gx.Color) {
+	sgl.c4b(c.r, c.g, c.b, 128)
+	sgl.begin_quads()
+	sgl_v2f(x, y)
+	sgl_v2f(x + w, y)
+	sgl_v2f(x + w, y + h)
+	sgl_v2f(x, y + h)
+	sgl.end()
+}
+
+pub fn draw_rect(x, y, w, h f32, c gx.Color) {
+	sgl.c4b(c.r, c.g, c.b, 128)
+	sgl.begin_quads()
+	sgl_v2f(x, y)
+	sgl_v2f(x + w, y)
+	sgl_v2f(x + w, y + h)
+	sgl_v2f(x, y + h)
+	sgl.end()
+}
+
+pub fn (gg &GG) draw_empty_rect(x, y, w, h f32, c gx.Color) {
+	sgl.c4b(c.r, c.g, c.b, 128)
+	sgl.begin_line_strip()
+	sgl.v2f(x, y)
+	sgl.v2f(x + w, y)
+	sgl.v2f(x + w, y + h)
+	sgl.v2f(x, y + h)
+	sgl.v2f(x, y)
+	sgl.end()
+}
+
+pub fn create_image(file string) u32 {
+	// println('gg create image "$file"')
+	if !os.exists(file) {
+		println('gg create image no such file "$file"')
+		return u32(0)
+	}
+	// img := stbi.load(file)
+	// img.free()
+	return 0 // texture
+}
+
+pub fn create_image_from_memory(buf byteptr) u32 {
+	// texture := gl.gen_texture()
+	// img := stbi.load_from_memory(buf)
+	// img.free()
+	return 0 // texture
+}
+
+pub fn (gg &GG) begin() {
+	sgl.defaults()
+	sgl.matrix_mode_projection()
+	sgl.ortho(0.0, f32(sapp.width()), f32(sapp.height()), 0.0, -1.0, 1.0)
+}
+
+pub fn (gg &GG) end() {
+	gfx.begin_default_pass(gg.clear_pass, sapp.width(), sapp.height())
+	sgl.draw()
+	gfx.end_pass()
+	gfx.commit()
+	wait_events()
+}
+
+pub fn (ctx &GG) draw_line(x, y, x2, y2 f32, color gx.Color) {}
+
+pub fn wait_events() {
+	unsafe {
+		$if macos  {
+		# NSEvent *event = [NSApp nextEventMatchingMask:NSEventMaskAny
+		# untilDate:[NSDate distantFuture]
+		# inMode:NSDefaultRunLoopMode
+		# dequeue:YES];
+		# [NSApp sendEvent:event];
+		}
+		$if windows {
+			C.WaitMessage()
+		}
+	}
+}
diff --git a/vlib/gx/gx.v b/vlib/gx/gx.v
index d8dc6f29ed..206003ff23 100644
--- a/vlib/gx/gx.v
+++ b/vlib/gx/gx.v
@@ -15,6 +15,7 @@ pub const (
 	Blue   = Color { r: 0, g: 0, b: 255 }
 	blue   = Color { r: 0, g: 0, b: 255 }
 	Red    = Color { r: 255, g: 0, b: 0 }
+	red    = Color { r: 255, g: 0, b: 0 }
 	Green  = Color { r: 0, g: 255, b: 0 }
 	green  = Color { r: 0, g: 255, b: 0 }
 	Yellow = Color { r: 255, g: 255, b: 0 }
diff --git a/vlib/sokol/c/c.v b/vlib/sokol/c/c.v
index ddc08f31f9..6f8beb7662 100644
--- a/vlib/sokol/c/c.v
+++ b/vlib/sokol/c/c.v
@@ -13,12 +13,12 @@ pub const (
 #flag windows -lgdi32
 
 // METAL
-// #flag -DSOKOL_METAL
-// #flag darwin -framework Metal -framework Cocoa -framework MetalKit -framework QuartzCore
+#flag darwin -DSOKOL_METAL
+#flag darwin -framework Metal -framework Cocoa -framework MetalKit -framework QuartzCore
 
 // OPENGL
-#flag -DSOKOL_GLCORE33
-#flag darwin -framework OpenGL -framework Cocoa -framework QuartzCore
+#flag linux -DSOKOL_GLCORE33
+//#flag darwin -framework OpenGL -framework Cocoa -framework QuartzCore
 
 
 // for simplicity, all header includes are here because import order matters and we dont have any way
diff --git a/vlib/sokol/sfons/sfons.v b/vlib/sokol/sfons/sfons.v
index 33ffe6b9dc..0c46e0e1b2 100644
--- a/vlib/sokol/sfons/sfons.v
+++ b/vlib/sokol/sfons/sfons.v
@@ -8,22 +8,22 @@ const (
 )
 
 [inline]
-pub fn sfons_create(width int, height int, flags int) &C.FONScontext {
+pub fn create(width int, height int, flags int) &C.FONScontext {
 	return C.sfons_create(width, height, flags)
 }
 
 [inline]
-pub fn sfons_destroy(ctx &C.FONScontext) {
+pub fn destroy(ctx &C.FONScontext) {
 	C.sfons_destroy(ctx)
 }
 
 [inline]
-pub fn sfons_rgba(r byte, g byte, b byte, a byte) u32 {
+pub fn rgba(r byte, g byte, b byte, a byte) u32 {
 	return C.sfons_rgba(r, g, b, a)
 }
 
 [inline]
-pub fn sfons_flush(ctx &C.FONScontext) {
+pub fn flush(ctx &C.FONScontext) {
 	C.sfons_flush(ctx)
 }
 
diff --git a/vlib/v/gen/tests/2.vv b/vlib/v/gen/tests/2.vv
index 687996aaf2..ab53242700 100644
--- a/vlib/v/gen/tests/2.vv
+++ b/vlib/v/gen/tests/2.vv
@@ -69,5 +69,15 @@ fn end() {
 
 }
 
+/*
+fn bool_array() {
+       a := [true, false]
+       b := a[0]
+       if b {
+               println('ok')
+       }
+}
+*/
+
 fn main() {
 	}