Req #62164 [Opn->Wfx]: [PATCH] Add support for alternative try/catch syntax
Edit report at https://bugs.php.net/bug.php?id=62164&edit=1
ID: 62164
Updated by: nikic@php.net
Reported by: kriss at krizalys dot com
Summary: [PATCH] Add support for alternative try/catch syntax
-Status: Open
+Status: Wont fix
Type: Feature/Change Request
Package: Scripting Engine problem
Operating System: *
PHP Version: 5.4.3
Block user comment: N
Private report: N
New Comment:
Closing as Won't Fix, as I don't think PHP is interested in supporting alternative syntax
for more control structures. If you really think this feature is necessary, please submit an RFC (or
at least a discussion on the PHP internals mailing list).
Previous Comments:
------------------------------------------------------------------------
[2012-05-29 03:17:36] kriss at krizalys dot com
I tested the patch successfully on Gentoo x86_64/PHP-5.4.3
------------------------------------------------------------------------
[2012-05-26 06:59:33] kriss at krizalys dot com
Description:
------------
The attached patch adds support to alternatively open a try block using a colon (:) in try/catch
structures. When using this syntax, each catch block must also be open by a colon, try and catch
blocks must not be closed by a closing brace (}), and the whole try/catch structure must be closed
by a "endtry" keyword.
The idea is to provide greater readability when PHP code is intermixed with HTML code and keep
consistency with constructs like if/endif, for/foreach, etc...
Please, note that after patching, the Zend scanner and parser, as well as ext/tokenizer_data.c
should be regenerated (using re2c, bison and tokenizer_data_gen.sh respectively, or using the
provided Makefile targets).
Test script:
---------------
<?php
try:
echo "Trying something unsafe\n";
throw new Exception('thrown using alternative try/catch syntax');
catch (int $e):
echo "Caught exception of type int (ints are not throwable, this is just example)\n";
// several statements can also be used here
catch (Exception $e):
echo "Caught exception of type Exception: {$e->getMessage()}\n";
// several statements can also be used here
endtry;
?>
<?php try:?>
<p>Trying something unsafe</p>
<?php throw new Exception('thrown using alternative try/catch syntax');?>
<?php catch (int $e):?>
<p>Caught exception of type int (ints are not throwable, this is just example)</p>
<?php catch (Exception $e):?>
<p>Caught exception of type Exception: <?php echo $e->getMessage();?></p>
<?php endtry;?>
Expected result:
----------------
Trying something unsafe
Caught exception of type Exception: thrown using alternative try/catch syntax
<p>Trying something unsafe</p>
<p>Caught exception of type Exception: thrown using alternative try/catch syntax</p>
Actual result:
--------------
PHP Parse error: syntax error, unexpected ':', expecting '{' in
/home/aaa/test.php on line 2
Parse error: syntax error, unexpected ':', expecting '{' in /home/aaa/test.php
on line 2
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=62164&edit=1
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