Add support for void cast

Author: nikic

ast.c

@@ -1074,6 +1074,12 @@ static void ast_to_zval(zval *zv, zend_ast *ast, ast_state_info_t *state) {
 				}
 			}
 			break;
+#endif
+#if PHP_VERSION_ID >= 80500
+		case ZEND_AST_CAST_VOID:
+			ast->kind = ZEND_AST_CAST;
+			ast->attr = IS_VOID;
+			break;
 #endif
 	}
 

tests/php85_pipe_operator.phpt

@@ -0,0 +1,24 @@
+--TEST--
+Pipe operator
+--SKIPIF--
+<?php if (PHP_VERSION_ID < 80500) die('skip PHP >=8.5 only'); ?>
+--FILE--
+<?php
+
+require __DIR__ . '/../util.php';
+
+$code = <<<'PHP'
+<?php
+$a |> $b;
+PHP;
+
+$node = ast\parse_code($code, $version=110);
+echo ast_dump($node), "\n";
+--EXPECTF--
+AST_STMT_LIST
+    0: AST_BINARY_OP
+        flags: BINARY_PIPE (%d)
+        left: AST_VAR
+            name: "a"
+        right: AST_VAR
+            name: "b"

tests/php85_void_cast.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Void cast
+--SKIPIF--
+<?php if (PHP_VERSION_ID < 80500) die('skip PHP >=8.5 only'); ?>
+--FILE--
+<?php
+
+require __DIR__ . '/../util.php';
+
+$code = <<<'PHP'
+<?php
+(void) foo();
+PHP;
+
+$node = ast\parse_code($code, $version=110);
+echo ast_dump($node), "\n";
+--EXPECTF--
+AST_STMT_LIST
+    0: AST_CAST
+        flags: TYPE_VOID (%d)
+        expr: AST_CALL
+            expr: AST_NAME
+                flags: NAME_NOT_FQ (%d)
+                name: "foo"
+            args: AST_ARG_LIST