добавил iife (возможность вызова лямбда функции сразу после объявления), iife с аргументами и defer

analyzers/test/test.l

@@ -72,6 +72,7 @@ LETTER_OR_DIGIT        [a-zA-Z0-9_]
 "++"                   { return INC; }
 "--"                   { return DEC; }
 
+"defer"                { return DEFER; }
 "range"                { return RANGE; }
 "for"                  { return FOR; }
 "break"                { return BREAK; }

analyzers/test/test.y

@@ -25,7 +25,7 @@ void free_node(char *str) {
 %token VAR FUNC RETURN STRING_LITERAL FLOAT_LITERAL COMPLEX_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 RANGE
+%token FOR BREAK CONTINUE ARROW IF ELSE RANGE DEFER
 %token CHAN CONST CASE SWITCH
 %token PLUS MINUS MULT DIV MOD
 %token STRING
@@ -58,6 +58,7 @@ program:
     ;
 
 statement:
+    | DEFER func_call SEMICOLON
     | func_call SEMICOLON
     { printf("\033[1;33mSTATEMENT: func_call\033[0m\n"); }
     | var_declaration SEMICOLON
@@ -329,11 +330,12 @@ import_list:
 func_literal:
     FUNC 
     { printf("\033[1;35mHELLO, ANON FUNC\n\033[0m"); } 
-    LPAREN arg_list RPAREN return_type block 
+    LPAREN arg_list RPAREN return_type block
     { printf("\033[1;35mBY, ANON FUNC\n\n\033[0m"); }
 
 func_call:
     any_identifier LPAREN math_expr_or_literals_list_or_empty RPAREN
+    | func_literal LPAREN math_expr_or_literals_list_or_empty RPAREN
 
 arg_declaration:
     identifiers_list type 

tests/main.go

@@ -1,6 +1,9 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+	"log"
+)
 
 func ujas() (func() func() func() int, int, string) {
 	return func() func() func() int {
@@ -19,5 +22,15 @@ func main() {
 		fmt.Println(idx, val)
 	}
 
+	defer func() {
+		if err := recover(); err != nil {
+			log.Println("work failed:", err)
+		}
+	}()
+
+	func(msg string) {
+		fmt.Println("Message:", msg)
+	}("Hello, IIFE!")
+
 	return
 }

tests/test_funcs.txt

@@ -2,6 +2,27 @@ package main;
 
 import "fmt";
 
+func server(a int) {
+    for work := range workChan {
+        
+    }
+}
+
+func iife(work int) {
+
+    func(){}();
+    func(){fmt.Println(123);}();
+
+    func(a, b string) {
+        fmt.Println("Message:", a + b);
+    }("Hello", ", world!");
+
+    defer func() {
+        if err := recover(); err != nil {
+            log.Println("work failed:", err);
+        }
+    }();
+}
 
 func ujas() (func() func() func() int, int, string) {
 	return func() func() func() int {