fix: add parentheses to ast functions dump

Author: xepozz

Zend/tests/arrow_functions/007.phpt

@@ -5,8 +5,6 @@ zend.assertions=1
 --FILE--
 <?php
 
-// TODO We're missing parentheses for the direct call
-
 try {
     assert((fn() => false)());
 } catch (AssertionError $e) {
@@ -21,5 +19,5 @@ try {
 
 ?>
 --EXPECT--
-assert(): assert(fn() => false()) failed
-assert(): assert(fn&(int ...$args): ?bool => $args[0](false)) failed
+assert(): assert((fn() => false)()) failed
+assert(): assert((fn&(int ...$args): ?bool => $args[0])(false)) failed

Zend/tests/enum/ast-dumper.phpt

@@ -28,7 +28,7 @@ try {
 
 ?>
 --EXPECT--
-assert(function () {
+assert((function () {
     enum Foo {
         case Bar;
     }
@@ -45,4 +45,4 @@ assert(function () {
     }
 
     return false;
-}())
+})())

Zend/tests/functions/007.phpt

@@ -0,0 +1,18 @@
+--TEST--
+Pretty printing for arrow functions
+--INI--
+zend.assertions=1
+--FILE--
+<?php
+
+try {
+    assert((function() { return false; })());
+} catch (AssertionError $e) {
+    echo 'assert(): ', $e->getMessage(), ' failed', PHP_EOL;
+}
+
+?>
+--EXPECT--
+assert(): assert((function () {
+    return false;
+})()) failed

Zend/tests/match/009_ast_export.phpt

@@ -19,10 +19,10 @@ assert((function () {
 
 ?>
 --EXPECTF--
-assert(): assert(function () {
+assert(): assert((function () {
     match ('foo') {
         'foo', 'bar' => false,
         'baz' => 'a',
         default => 'b',
     };
-}()) failed
+})()) failed

Zend/zend_ast.c

@@ -2233,7 +2233,14 @@ static ZEND_COLD void zend_ast_export_ex(smart_str *str, zend_ast *ast, int prio
 			zend_ast_export_var(str, ast->child[1], 0, indent);
 			break;
 		case ZEND_AST_CALL:
-			zend_ast_export_ns_name(str, ast->child[0], 0, indent);
+			zend_ast *left = ast->child[0];
+			if (left->kind == ZEND_AST_ARROW_FUNC || left->kind == ZEND_AST_CLOSURE) {
+				smart_str_appends(str, "(");
+				zend_ast_export_ns_name(str, left, 0, indent);
+				smart_str_appends(str, ")");
+			} else {
+				zend_ast_export_ns_name(str, left, 0, indent);
+			}
 			smart_str_appendc(str, '(');
 			zend_ast_export_ex(str, ast->child[1], 0, indent);
 			smart_str_appendc(str, ')');