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✎ Editing: Debugger.php ← Back

<?php

/**

* Debugging tools.

*

* This file gives a developer a set of tools useful for performing code

* consistency checks. This includes scoping code blocks to ensure that

* only the interesting iteration of a loop gets outputted, a paint()

* function that acts like var_dump() with pre tags, and conditional

* printing.

*/

/*

TODO

* Integrate into SimpleTest so it tells us whether or not there were any

not cleaned up debug calls.

* Custom var_dump() that ignores blacklisted properties

* DEPRECATE AND REMOVE ALL CALLS!

*/

/**#@+

* Convenience global functions. Corresponds to method on Debugger.

*/

function paint($mixed)

{

$Debugger =& Debugger::instance();

return $Debugger->paint($mixed);

}

function paintIf($mixed, $conditional)

{

$Debugger =& Debugger::instance();

return $Debugger->paintIf($mixed, $conditional);

}

function paintWhen($mixed, $scopes = array())

{

$Debugger =& Debugger::instance();

return $Debugger->paintWhen($mixed, $scopes);

}

function paintIfWhen($mixed, $conditional, $scopes = array())

{

$Debugger =& Debugger::instance();

return $Debugger->paintIfWhen($mixed, $conditional, $scopes);

}

function addScope($id = false)

{

$Debugger =& Debugger::instance();

return $Debugger->addScope($id);

}

function removeScope($id)

{

$Debugger =& Debugger::instance();

return $Debugger->removeScope($id);

}

function resetScopes()

{

$Debugger =& Debugger::instance();

return $Debugger->resetScopes();

}

function isInScopes($array = array())

{

$Debugger =& Debugger::instance();

return $Debugger->isInScopes($array);

}

/**#@-*/

/**

* The debugging singleton. Most interesting stuff happens here.

*/

class Debugger

{

public $shouldPaint = false;

public $paints  = 0;

public $current_scopes = array();

public $scope_nextID = 1;

public $add_pre = true;

public function Debugger()

{

$this->add_pre = !extension_loaded('xdebug');

}

public static function &instance() {

static $soleInstance = false;

if (!$soleInstance) $soleInstance = new Debugger();

return $soleInstance;

}

public function paintIf($mixed, $conditional)

{

if (!$conditional) return;

$this->paint($mixed);

}

public function paintWhen($mixed, $scopes = array())

{

if (!$this->isInScopes($scopes)) return;

$this->paint($mixed);

}

public function paintIfWhen($mixed, $conditional, $scopes = array())

{

if (!$conditional) return;

if (!$this->isInScopes($scopes)) return;

$this->paint($mixed);

}

public function paint($mixed)

{

$this->paints++;

if($this->add_pre) echo '<pre>';

var_dump($mixed);

if($this->add_pre) echo '</pre>';

}

public function addScope($id = false)

{

if ($id == false) {

$id = $this->scope_nextID++;

}

$this->current_scopes[$id] = true;

}

public function removeScope($id)

{

if (isset($this->current_scopes[$id])) unset($this->current_scopes[$id]);

}

public function resetScopes()

{

$this->current_scopes = array();

$this->scope_nextID = 1;

}

public function isInScopes($scopes = array())

{

if (empty($this->current_scopes)) {

return false;

}

if (!is_array($scopes)) {

$scopes = array($scopes);

}

foreach ($scopes as $scope_id) {

if (empty($this->current_scopes[$scope_id])) {

return false;

}

}

if (empty($scopes)) {

if ($this->scope_nextID == 1) {

return false;

}

for($i = 1; $i < $this->scope_nextID; $i++) {

if (empty($this->current_scopes[$i])) {

return false;

}

}

}

return true;

}

}

// vim: et sw=4 sts=4

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