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class constant parser bug [message #1711541]

Fri, 16 October 2015 20:27

Chris Nasr is currently offline

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Messages: 3
Registered: October 2015

Junior Member

There is a bug in PDT that incorrectly marks legitimate code as broken.

When accessing a class constant that is an array via self or static it thinks '[' shouldn't be there.

For example.

01: class DataPoint {
02:   const _TO_REGEX		= array(
03:     'int'		=> '/^[+-]?\d+$/',
04:   );
05: 
06:   public function _construct($type, $value) {
07:     if($type == 'int') {
08:       if(!preg_match(self::_TO_REGEX['int'], $value)) {
09:         // throw error
10:       }
11:     }
12:   }
13: }

Gives me the error: "syntax error, unexpected '['" at line 8 and it underlines the '[' in red.

The problem is this code is 100% valid and runs fine. What's even worse if that if I replace "self::" with "$this->" the error goes away, but now the code is truly broken as you can't access a constant using $this.

It's as if someone got their parsing backwards when it comes to constants. Or perhaps the lack of dollar sign in the statement is what is tripping up the parser. Either way, this is a bug and needs to be fixed.

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Re: class constant parser bug [message #1711561 is a reply to message #1711541]

Sat, 17 October 2015 10:29

Dawid Pakula is currently offline

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Messages: 291
Registered: March 2013

Senior Member

This bug has been fixed in PDT 3.6 : https://bugs.eclipse.org/bugs/show_bug.cgi?id=459420

PDT 3.6 is part of Eclipse Mars.1

PDT: http://eclipse.org/pdt
PDT-Ex: http://p2.pdt-extensions.org | nightlies: http://p2-dev.pdt-extensions.org
Sponsor me: https://github.com/sponsors/zulus

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Re: class constant parser bug [message #1711739 is a reply to message #1711561]

Mon, 19 October 2015 13:26

Chris Nasr is currently offline

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Messages: 3
Registered: October 2015

Junior Member

Oh, excellent, I will try that out. Thanks so much Dawid

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Re: class constant parser bug [message #1711759 is a reply to message #1711739]

Mon, 19 October 2015 14:15

Chris Nasr is currently offline

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Messages: 3
Registered: October 2015

Junior Member

No Message Body

[Updated on: Mon, 19 October 2015 14:24]

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Re: class constant parser bug [message #1711761 is a reply to message #1711759]

Mon, 19 October 2015 14:17

Dawid Pakula is currently offline

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Messages: 291
Registered: March 2013

Senior Member

Constant array access is available since PHP 5.6 so make sure you have project (or wide workspace) set to PHP 5.6 or 7

PDT: http://eclipse.org/pdt
PDT-Ex: http://p2.pdt-extensions.org | nightlies: http://p2-dev.pdt-extensions.org
Sponsor me: https://github.com/sponsors/zulus

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