Bug #67773 [Opn->Csd]: Scope-Resolution Operator

From: Date: Sun, 28 Jun 2015 21:37:05 +0000
Subject: Bug #67773 [Opn->Csd]: Scope-Resolution Operator
References: 1  Groups: php.standards 
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Edit report at https://bugs.php.net/bug.php?id=67773&edit=1 ID: 67773 Updated by: stas@php.net Reported by: joelm@php.net Summary: Scope-Resolution Operator -Status: Open +Status: Closed Type: Bug Package: PHP Language Specification PHP Version: Irrelevant -Assigned To: +Assigned To: stas Block user comment: N Private report: N New Comment: The fix for this bug has been committed. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. For Windows: http://windows.php.net/snapshots/ Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2015-06-28 21:24:44] stas@php.net I'm sorry but I don't see where the language implies properties and methods live in the same namespace (the language may have changed since the report, so maybe it's fixed already). I'll add the language making it more clear when :: is used for constants, properties and methods. ------------------------------------------------------------------------ [2014-08-05 16:56:20] joelm@php.net Description: ------------ https://github.com/php/php-langspec/blob/master/spec/10-expressions.md#scope-resolution-operator This section makes it sound like class constants and methods and static properties all live in the same namespace (which is wrong, they have distinct namespaces and you can have a method and a class constant with the same name). Also, nothing in this section, other sections, or the syntax rules give enough information allow the reader to distinguish between a ::-style method call expression, a constant access, and a static property access. This is key to describing how a parsed expression involving the :: operator is interpreted by the engine. For example does "C::$x" access a static property of class C named 'x', or does it access a class constant whose name is held in local variable $x? Does "C::$x()" call a method on class C whose name is held in local variable $x, or does it call a callback stored in static property of class C named 'x'? Finally, this section doesn't describe how ::-style method lookup or static property lookup or class constant lookup. For example if th! ere is are multiple static properties named 'x' (possibly with different public/protected/private modifiers), how do we decide which one gets accessed. Same goes for methods. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=67773&edit=1

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