mirror of
https://github.com/php/php-src.git
synced 2026-03-24 00:02:20 +01:00
6173a9a109
The aim of this PR is twofold:
- Reduce the number of highly similar TMP|VAR handlers
- Avoid ZVAL_DEREF in most of these cases
This is achieved by guaranteeing that all zend_compile_expr() calls, as well as
all other compile calls with BP_VAR_{R,IS}, will result in a TMP variable. This
implies that the result will not contain an IS_INDIRECT or IS_REFERENCE value,
which was mostly already the case, with two exceptions:
- Calls to return-by-reference functions. Because return-by-reference functions
are quite rare, this is solved by delegating the DEREF to the RETURN_BY_REF
handler, which will examine the stack to check whether the caller expects a
VAR or TMP to understand whether the DEREF is needed. Internal functions will
also need to adjust by calling the zend_return_unwrap_ref() function.
- By-reference assignments, including both $a = &$b, as well as $a = [&$b]. When
the result of these expressions is used in a BP_VAR_R context, the reference
is unwrapped via a ZEND_QM_ASSIGN opcode beforehand. This is exceptionally
rare.
Closes GH-20628
23 lines
319 B
PHP
23 lines
319 B
PHP
--TEST--
|
|
Invalid opcode for method call with FETCH_THIS
|
|
--FILE--
|
|
<?php
|
|
|
|
class Foo {
|
|
public function bar() {
|
|
var_dump($this, __METHOD__);
|
|
}
|
|
|
|
public function test() {
|
|
require __DIR__ . '/gh20628_004.inc';
|
|
}
|
|
}
|
|
|
|
(new Foo)->test();
|
|
|
|
?>
|
|
--EXPECTF--
|
|
object(Foo)#%d (0) {
|
|
}
|
|
string(8) "Foo::bar"
|