доработал return, теперь может быть пустым или возвращать список, добавил условия с присвоением и проверкой

analyzers/test/test.l

@@ -70,6 +70,7 @@ LETTER_OR_DIGIT        [a-zA-Z0-9_]
 "++"                   { return INC; }
 "--"                   { return DEC; }
 
+"range"                { return RANGE; }
 "for"                  { return FOR; }
 "break"                { return BREAK; }
 "switch"               { return SWITCH; }

analyzers/test/test.y

@@ -25,7 +25,7 @@ void free_node(char *str) {
 %token VAR FUNC RETURN STRING_LITERAL FLOAT_LITERAL NUMBER PACKAGE IMPORT
 %token INC DEC PLUS_EQ MINUS_EQ MUL_EQ DIV_EQ MOD_EQ
 %token AMPERSAND_EQ PIPE_EQ XOR_EQ LSHIFT_EQ RSHIFT_EQ AND_NOT_EQ
-%token FOR BREAK CONTINUE ARROW IF ELSE
+%token FOR BREAK CONTINUE ARROW IF ELSE RANGE
 %token CHAN CONST CASE SWITCH
 %token PLUS MINUS MULT DIV MOD
 %token STRING
@@ -78,7 +78,6 @@ block:
     LBRACE statements_list RBRACE 
     ;
 
-
 any_identifier:
     IDENTIFIER
     | WITH_DOT_IDENTIFIER
@@ -111,7 +110,8 @@ math_expr_or_literals_list_or_empty:
 
 // condition
 condition:
-    IF log_expr block else_part
+    IF var_multiple_short_declaration SEMICOLON log_expr block else_part
+    | IF log_expr block else_part
 
 else_part:
     { printf("\033[1;33mSTATEMENT: if condition with block\033[0m\n"); }
@@ -128,6 +128,8 @@ cicle:
     { printf("\033[1;34mLOOP: full for loop with init, condition and post\033[0m\n"); }
     | FOR log_expr loop_block
     { printf("\033[1;34mLOOP: for loop with condition only\033[0m\n"); }
+    | FOR identifiers_list SHORT_DECLARATION RANGE IDENTIFIER loop_block
+    { printf("\033[1;34mLOOP: range for loop\033[0m\n"); }
     ;
 
 post_statement:
@@ -187,7 +189,7 @@ continue_statement:
 
 // expressions
 expr:
-    RETURN math_expr { printf("\033[1;35mRETURN math expr\033[0m\n") }
+    RETURN math_expr_or_literals_list_or_empty { printf("\033[1;35mRETURN math expr\033[0m\n") }
     | RETURN literal { printf("\033[1;35mRETURN literal\033[0m\n") }
     | IDENTIFIER ASSIGN math_expr { }
     | math_expr { }
@@ -221,6 +223,7 @@ log_expr:
     | math_expr GEQ math_expr { }
     | LPAREN log_expr RPAREN {  }
     | BOOL_LITERAL
+    | func_call
     ;
 //
 

tests/main.go

@@ -1,9 +1,13 @@
 package main
 
-func test(a int) int {
+import "fmt"
-	return a
-}
 
 func main() {
-	panic(test(test(1)*2 + 1))
+
+	arr := []int{1, 2, 3}
+	for idx, val := range arr {
+		fmt.Println(idx, val)
+	}
+
+	return
 }

tests/test_cicle.txt

@@ -66,4 +66,6 @@ outer2:
     for key, value := range m {
     }
 
+    return;
+
 }

tests/test_func_calls.txt

@@ -11,4 +11,9 @@ func test(a int) int {
 func main() {
     a := test(1);                       // вызов функции обычной
     fmt.Println(test(test(1)*2+3 - a)); // вызов функции из fmt
+
+    return;
+
+    return 1,2,3,a,"123",1.232, test(1)*2;
+
 }

tests/test_if.txt

@@ -45,7 +45,7 @@ func main() {
 }
 
 func isValid() bool {
-    return true
+    return true;
 }
 
 func shouldReturn() bool {