Bug #79616 [NEW]: Wrong behavior of Generator close when nesting "yield from"

From: jeremy at derusse dot com Operating system: Linux PHP version: 7.4.6 Package: Unknown/Other Function Bug Type: Bug Bug description:Wrong behavior of Generator close when nesting "yield from" Description: ------------ Since php 7.4.6, When nesting several yield from, the \Generator::valid methods return true while the Generator stay open after the last item. (calling Generator::valid return once true after the last item. Test script: --------------- <?php function foo() { yield from ['foo', 'bar']; } function bar() { yield from foo(); } function countGenerator($generator) { for ($count = 0; $generator->valid(); $generator->next()) { ++$count; } return $count; } var_dump(countGenerator(foo())); var_dump(countGenerator(bar())); Expected result: ---------------- int(2) int(2) Actual result: -------------- int(2) int(3) -- Edit bug report at https://bugs.php.net/bug.php?id=79616&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79616&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79616&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79616&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79616&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79616&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79616&r=support Expected behavior: https://bugs.php.net/fix.php?id=79616&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79616&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79616&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79616&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79616&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79616&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79616&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79616&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79616&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79616&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79616&r=mysqlcfg