diff --git a/corpus/edigits_like.lang b/corpus/edigits_like.lang
index 874dc4c..782fa02 100644
--- a/corpus/edigits_like.lang
+++ b/corpus/edigits_like.lang
@@ -6,7 +6,7 @@ EdigitsDraft
 :: std : BigInt;
 :: math;
 
-exec.main = {
+exec.main {
   %n := (?? os.args.size > 1 => (<> os.args[1]).scan !!=> 27);
   %k := binary_search 0;
   %p & %q := sum_terms 0 (k - 1);
@@ -25,7 +25,7 @@ exec.main = {
   };
 }
 
-sum_terms 'a 'b : Int Int -> std.BigInt -> std.BigInt = {
+sum_terms 'a 'b : Int Int -> std.BigInt -> std.BigInt {
   ?? 'b ==. 'a + 1 => return std.BigInt.of 1 & std.BigInt.of 'b;
 
   %mid := 'a + 'b /. 2;
@@ -35,7 +35,7 @@ sum_terms 'a 'b : Int Int -> std.BigInt -> std.BigInt = {
   return p_left * q_right +. p_right &.. q_left * q_right;
 }
 
-binary_search 'n : Int -> Int = {
+binary_search 'n : Int -> Int {
   %a := 0;
   %b := 1;
   @ not (test_k 'n b) => {
@@ -50,7 +50,7 @@ binary_search 'n : Int -> Int = {
 }
 
 
-test_k 'n 'k : Int Int -> Bool = {
+test_k 'n 'k : Int Int -> Bool {
   ?? k < 0 => return false;
 
   %ln_k_factorial := k * (math.log k - 1) +. 0.5 * math.log math.tau;
diff --git a/corpus/test.lang b/corpus/test.lang
index 87e65f3..484067f 100644
--- a/corpus/test.lang
+++ b/corpus/test.lang
@@ -11,7 +11,7 @@ Test
 :: module_3 : func1 func2 func3;
 :: module_namespace = module_4;
 
-func = {
+func {
 
   @ => {
     %x := scan;
@@ -27,7 +27,7 @@ func = {
   };
 
   ?? abracadabbra < abracadabra_abracadabra || some_long_name == another_long_name
-  &&. abracadabra-abracadabra < long_long_long_long_name => io.print x
+  &&. abracadabra_abracadabra < long_long_long_long_name => io.print x
   !! x < 0 => {
     x += 1;
     io.print y;
@@ -55,7 +55,7 @@ fib 'n : @n Int -> Int =
   'n =: 0 | 1 => 1
      =: _ => fib ('n - 1) + fib 'n;
 
-func_2 = {
+func_2 {
   %variant := x;
 
   %val | %err := f x;
@@ -112,15 +112,15 @@ func_2 = {
 : operator definition example
 ( - ) 'a 'b = 'a + neg 'b;
 
-test.something = {
+test.something {
   do_something a b c;
 }
 
-exec.something = {
+exec.something {
   do_something a b c;
 }
 
-example.something = {
+example.something {
   do_something a b c;
 }
 
@@ -132,7 +132,7 @@ Fruit = @apple Unit
       | @banana Unit;
 
 : function that takes array reference argument
-bubble_sort 'arr : <> Array['A] = {
+bubble_sort 'arr : <> Array['A] {
   swap_occured := true;
   @ swap_occured => {
     swap_occured = false;
@@ -141,7 +141,7 @@ bubble_sort 'arr : <> Array['A] = {
 }
 
 : bubble_sort with names instead of symbols
-bubble_sort_2 'arr : ref Array['A] = {
+bubble_sort_2 'arr : ref Array['A] {
   var swap_occured := true;
   for swap_occured do {
     swap_occured = false;
@@ -166,17 +166,17 @@ bubble_sort_2 'arr : ref Array['A] = {
 .delete <> 'this 'key = do_something; // var methods
 
 
-generic_type_name_expressions = {
+generic_type_name_expressions {
   $x := TreeNode[Int Int].new;
   $y := std.Array[Int].new;
 }
 
-pipes_example = {
+pipes_example {
   expr |> func_1 a b |> func_2 c d |> print; // print (func_2 (func_1 expr a b) c d)
   print <| func_1 a b <| func_2 c d <| expr; // print (func_1 a b (func_2 c d expr))
 }
 
-test_ref_access_precendence = {
+test_ref_access_precendence {
   %x := <> arr[123];
 }
 
@@ -212,7 +212,7 @@ result_example 'a! = 'a =: _? => print "value inside"
                         =: _ => print "error inside";
 
 : function, that returns result
-parse_number : Unit! = {
+parse_number : Unit! {
   %number_str := String.scan;
   %number! := Int.parse number_str;
   number.print;
@@ -232,7 +232,7 @@ tuple_argument_test 'x : (A & B & C) = do_something;
 // ((A1 & A2) | B | C) same to Variant[Tuple[A1 A2] B C]
 variant_argument_test 'x : ( (A1 & A2) | B | C) = do_something;
 
-literals_test = {
+literals_test {
   %float_number_literal := 1.0f;
   %double_number_literal := 1.0;
   %int_literal := 1i;
@@ -247,9 +247,16 @@ literals_test = {
   %null_literal := null;
 }
 
-array_argument_test 'x : [[ Int ]] = do_something;
+array_argument_test 'x : A[Int] = do_something;
 
-functional_arguments_test 'x 'y : (( Int -> Int )) (( Float <- Float -> Float )) = do_something;
+functional_arguments_test 'x 'y : F[Int -> Int] F[Float <- Float -> Float] = do_something;
+
+type_name_expression_test 'x : Int = A[Int].a.b.c x y z;
+array_name_expression_test 'x : Int = [[(A a) b]].a.b.c x y z;
+name_expression_test 'x : Int = abacaba.a.b.c x y z;
+field_name_expression_test 'x : Int = (abacaba.a).b.c x y z;
+
+array_function_test 'x : Int [[ 'x (do_something 'x) (T 'x)]]
 
 --------------------------------------------------------------------------------
 
@@ -344,12 +351,8 @@ functional_arguments_test 'x 'y : (( Int -> Int )) (( Float <- Float -> Float ))
               (simple_name_identifier)))
           (operator_tail1)
           (operator_expression
-            (operator_expression
-              (name_expression
-                (simple_name_identifier))
-              (operator)
-              (name_expression
-                (simple_name_identifier)))
+            (name_expression
+              (simple_name_identifier))
             (operator)
             (name_expression
               (simple_name_identifier))))
@@ -1478,7 +1481,8 @@ functional_arguments_test 'x 'y : (( Int -> Int )) (( Float <- Float -> Float ))
   (function_definition
     (simple_name_identifier)
     (argument_name_identifier)
-    (array_type
+    (simple_type
+      (simple_type_identifier)
       (simple_type
         (simple_type_identifier)))
     (name_expression
@@ -1488,13 +1492,15 @@ functional_arguments_test 'x 'y : (( Int -> Int )) (( Float <- Float -> Float ))
     (simple_name_identifier)
     (argument_name_identifier)
     (argument_name_identifier)
-    (function_type
+    (simple_type
+      (simple_type_identifier)
       (simple_type
         (simple_type_identifier))
       (reference_type
         (simple_type
           (simple_type_identifier))))
-    (function_type
+    (simple_type
+      (simple_type_identifier)
       (simple_type
         (simple_type_identifier))
       (reference_type
@@ -1505,4 +1511,75 @@ functional_arguments_test 'x 'y : (( Int -> Int )) (( Float <- Float -> Float ))
           (simple_type_identifier))))
     (name_expression
       (simple_name_identifier)))
+  (empty_lines)
+  (function_definition
+    (simple_name_identifier)
+    (argument_name_identifier)
+    (simple_type
+      (simple_type_identifier))
+    (name_expression
+      (simple_type
+        (simple_type_identifier)
+        (simple_type
+          (simple_type_identifier)))
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)))
+  (empty_lines)
+  (function_definition
+    (simple_name_identifier)
+    (argument_name_identifier)
+    (simple_type
+      (simple_type_identifier))
+    (name_expression
+      (array
+        (constructor
+          (simple_type
+            (simple_type_identifier))
+          (simple_name_identifier))
+        (simple_name_identifier))
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)))
+  (empty_lines)
+  (function_definition
+    (simple_name_identifier)
+    (argument_name_identifier)
+    (simple_type
+      (simple_type_identifier))
+    (name_expression
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)))
+  (empty_lines)
+  (function_definition
+    (simple_name_identifier)
+    (argument_name_identifier)
+    (simple_type
+      (simple_type_identifier))
+    (name_expression
+      (name_expression
+        (simple_name_identifier))
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)
+      (simple_name_identifier)))
+  (empty_lines)
+  (function_definition
+    (simple_name_identifier)
+    (argument_name_identifier)
+    (simple_type
+      (simple_type_identifier))
+    (array
+      (argument_name_identifier)
+      (name_expression
+        (simple_name_identifier)
+        (argument_name_identifier))
+      (constructor
+        (simple_type
+          (simple_type_identifier))
+        (argument_name_identifier))))
   (empty_lines))
diff --git a/grammar.g4 b/grammar.g4
index edc33ec..1b56c67 100644
--- a/grammar.g4
+++ b/grammar.g4
@@ -22,7 +22,7 @@ function_definition: (definietion_info)? (ANNOTATION_INFO)* (constraint ';')*
                      ('.')? (SIMPLE_NAME_IDENTIFIER | ('(' OPERATOR ')')) ('?' | '!')
                      (((ANNOTATION_IDENTIFIER)? (REFERENCE)? ARGUMENT_NAME_IDENTIFIER ('?' | '!')?)*)
                      (':' ((ANNOTATION_IDENTIFIER)? (REFERENCE)? scoped_type)+)?
-                     (('=' ( /*prec 2*/ block | (super_expression ';'))) | ';')
+                     ((/*prec 2*/ array | block) | ('=' super_expression ';')) | ';')
                      ;
 
 type_definition: (DEFINITION_INFO)? (ANNOTATION_INFO)* (REFERENCE)?
@@ -125,12 +125,8 @@ variant_type: ('|')? annotated_type ('|' annotated_type)+ ;
 
 tuple_type: ('&')? annotated_type ('&' _annotated_type)+ ;
 
-function_type: '((' (_annotated_type)+ '))';
-
 annotated_type: (ANNOTATION_IDENTIFIER)? scoped_type ;
 
-array_type: '[[' type ']]' ;
-
 reference_type: /* prec -1 */ REFERENCE scoped_type ;
 
 modified_type: scoped_type ('?' | '!') ;
@@ -140,18 +136,14 @@ simple_type: type_identifier ('[' (scoped_type)+ ']')? ;
 type: simple_type
     | reference_type
     | modified_type
-    | array_type
     | variant_type
     | tuple_type
-    | function_type
     ;
 
 scoped_type: simple_type
            | reference_type
            | modified_type
-           | array_type
            | '(' (variant_type | tuple_type) ')'
-           | function_type
            ;
 
 name_identifier: (ARGUMENT_NAME_IDENTIFIER | SIMPLE_NAME_IDENTIFIER) ;
diff --git a/grammar.js b/grammar.js
index f661588..94a386b 100644
--- a/grammar.js
+++ b/grammar.js
@@ -55,7 +55,7 @@ module.exports = grammar({
         ':',
         repeat1($._annotated_type),
       )),
-      choice(seq('=', choice(prec(2, choice($.block, $.array)), seq($._super_expression, ';'))), ';'),
+      choice(choice(prec(2, choice($.block, $.array)), seq('=', $._super_expression, ';')), ';'),
     ),
 
     // datatype or typeclass definition
@@ -222,13 +222,12 @@ module.exports = grammar({
       repeat1(seq('&', $._annotated_type)),
     ),
 
-    function_type: $ => seq('((', repeat1($._annotated_type), '))'),
+    // for function type Function[...] or F[...] is used
 
     // add annotations to in all types ??
     _annotated_type: $ => seq(optional($.annotation_identifier), $._scoped_type),
 
-    // same to Array[...]
-    array_type: $ => seq('[[', $._type, ']]'),
+    // for array type Array[...] or A[...] is used
 
     reference_type: $ => prec(-1, seq($._reference, $._scoped_type)),
 
@@ -244,23 +243,18 @@ module.exports = grammar({
       $.simple_type,
       $.reference_type,
       $.modified_type,
-      $.array_type,
       $.variant_type,
       $.tuple_type,
-      $.function_type,
     ),
 
     _scoped_type: $ => choice(
       $.simple_type,
       $.reference_type,
       $.modified_type,
-      $.array_type,
       seq('(', choice(
         $.variant_type,
         $.tuple_type,
-        //$.function_type,
       ), ')'),
-      $.function_type,
     ),
 
     // --- comments