Fix bug #77966: Cannot alias a method named "namespace"#5668
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nikic wants to merge 5 commits intophp:masterfrom
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Fix bug #77966: Cannot alias a method named "namespace"#5668nikic wants to merge 5 commits intophp:masterfrom
nikic wants to merge 5 commits intophp:masterfrom
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And fix handling of on_event in object mode
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Oh boy. Are there more special cases like that? That one didn't come up during the RFC. |
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@marcioAlmada This is the only one I'm aware of right now, but this will also be needed for named parameters (which is why I bothered to implement it now). |
TysonAndre
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Related to phpGH-5668 Also affects php 8.0 but this changes the datastructures in public header files. (binary ABI change) PHP 7.4 wouldn't even parse a class with the below example. 1. Fix parsing semi-reserved tokens such as `namespace` with an offset that's larger than 2**32 2. Fix parsing some tokens when their length is larger than 2**32 Offset is relative to yy_start(the start of the file?) Low priority because 4GB php files are extremely rare ``` php > ini_set('memory_limit', '12G'); php > eval(str_repeat(' ' , 2**32) . 'class MyClass{ public static function namespace() {}}'); php > MyClass::namespace(); Warning: Uncaught Error: Call to undefined method MyClass::namespace() in php shell code:1 Stack trace: thrown in php shell code on line 1 php > var_export((new ReflectionClass('MyClass'))->getMethods()); array ( 0 => ReflectionMethod::__set_state(array( 'name' => ' ', 'class' => 'MyClass', )), ) ```
TysonAndre
added a commit
to TysonAndre/php-src
that referenced
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Jan 18, 2021
Related to phpGH-5668 Also affects php 8.0 but this changes the datastructures in public header files. (binary ABI change) PHP 7.4 wouldn't even parse a class with the below example. 1. Fix parsing semi-reserved tokens such as `namespace` with an offset that's larger than 2**32 2. Fix parsing some tokens when their length is larger than 2**32 Offset is relative to yy_start(the start of the file?) Low priority because 4GB php files are extremely rare ``` php > ini_set('memory_limit', '12G'); php > eval(str_repeat(' ' , 2**32) . 'class MyClass{ public static function namespace() {}}'); php > MyClass::namespace(); Warning: Uncaught Error: Call to undefined method MyClass::namespace() in php shell code:1 Stack trace: thrown in php shell code on line 1 php > var_export((new ReflectionClass('MyClass'))->getMethods()); array ( 0 => ReflectionMethod::__set_state(array( 'name' => ' ', 'class' => 'MyClass', )), ) ```
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The basic problem is that the identifier is no longer the lookahead token in this case, which means we have to support the whole machinery for going back more than one token. This means we should remember the identifier on the parser stack and modify the on_event API to distinguish the token the feedback applies to.