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paulgoughbooks_old / trunk / system / ThirdParty / Kint / Parser / Parser.php
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<?php /* * The MIT License (MIT) * * Copyright (c) 2013 Jonathan Vollebregt (jnvsor@gmail.com), Rokas Šleinius (raveren@gmail.com) * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ namespace Kint\Parser; use DomainException; use Exception; use Kint\Object\BasicObject; use Kint\Object\BlobObject; use Kint\Object\InstanceObject; use Kint\Object\Representation\Representation; use Kint\Object\ResourceObject; use ReflectionObject; use stdClass; class Parser { /** * Plugin triggers. * * These are constants indicating trigger points for plugins * * BEGIN: Before normal parsing * SUCCESS: After successful parsing * RECURSION: After parsing cancelled by recursion * DEPTH_LIMIT: After parsing cancelled by depth limit * COMPLETE: SUCCESS | RECURSION | DEPTH_LIMIT * * While a plugin's getTriggers may return any of these */ const TRIGGER_NONE = 0; const TRIGGER_BEGIN = 1; const TRIGGER_SUCCESS = 2; const TRIGGER_RECURSION = 4; const TRIGGER_DEPTH_LIMIT = 8; const TRIGGER_COMPLETE = 14; protected $caller_class; protected $depth_limit = false; protected $marker; protected $object_hashes = array(); protected $parse_break = false; protected $plugins = array(); /** * @param false|int $depth_limit Maximum depth to parse data * @param null|string $caller Caller class name */ public function __construct($depth_limit = false, $caller = null) { $this->marker = \uniqid("kint\0", true); $this->caller_class = $caller; if ($depth_limit) { $this->depth_limit = $depth_limit; } } /** * Set the caller class. * * @param null|string $caller Caller class name */ public function setCallerClass($caller = null) { $this->noRecurseCall(); $this->caller_class = $caller; } public function getCallerClass() { return $this->caller_class; } /** * Set the depth limit. * * @param false|int $depth_limit Maximum depth to parse data */ public function setDepthLimit($depth_limit = false) { $this->noRecurseCall(); $this->depth_limit = $depth_limit; } public function getDepthLimit() { return $this->depth_limit; } /** * Disables the depth limit and parses a variable. * * This should not be used unless you know what you're doing! * * @param mixed $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ public function parseDeep(&$var, BasicObject $o) { $depth_limit = $this->depth_limit; $this->depth_limit = false; $out = $this->parse($var, $o); $this->depth_limit = $depth_limit; return $out; } /** * Parses a variable into a Kint object structure. * * @param mixed $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ public function parse(&$var, BasicObject $o) { $o->type = \strtolower(\gettype($var)); if (!$this->applyPlugins($var, $o, self::TRIGGER_BEGIN)) { return $o; } switch ($o->type) { case 'array': return $this->parseArray($var, $o); case 'boolean': case 'double': case 'integer': case 'null': return $this->parseGeneric($var, $o); case 'object': return $this->parseObject($var, $o); case 'resource': return $this->parseResource($var, $o); case 'string': return $this->parseString($var, $o); default: return $this->parseUnknown($var, $o); } } public function addPlugin(Plugin $p) { if (!$types = $p->getTypes()) { return false; } if (!$triggers = $p->getTriggers()) { return false; } $p->setParser($this); foreach ($types as $type) { if (!isset($this->plugins[$type])) { $this->plugins[$type] = array( self::TRIGGER_BEGIN => array(), self::TRIGGER_SUCCESS => array(), self::TRIGGER_RECURSION => array(), self::TRIGGER_DEPTH_LIMIT => array(), ); } foreach ($this->plugins[$type] as $trigger => &$pool) { if ($triggers & $trigger) { $pool[] = $p; } } } return true; } public function clearPlugins() { $this->plugins = array(); } public function haltParse() { $this->parse_break = true; } public function childHasPath(InstanceObject $parent, BasicObject $child) { if ('object' === $parent->type && (null !== $parent->access_path || $child->static || $child->const)) { if (BasicObject::ACCESS_PUBLIC === $child->access) { return true; } if (BasicObject::ACCESS_PRIVATE === $child->access && $this->caller_class) { if ($this->caller_class === $child->owner_class) { return true; } } elseif (BasicObject::ACCESS_PROTECTED === $child->access && $this->caller_class) { if ($this->caller_class === $child->owner_class) { return true; } if (\is_subclass_of($this->caller_class, $child->owner_class)) { return true; } if (\is_subclass_of($child->owner_class, $this->caller_class)) { return true; } } } return false; } /** * Returns an array without the recursion marker in it. * * DO NOT pass an array that has had it's marker removed back * into the parser, it will result in an extra recursion * * @param array $array Array potentially containing a recursion marker * * @return array Array with recursion marker removed */ public function getCleanArray(array $array) { unset($array[$this->marker]); return $array; } protected function noRecurseCall() { $bt = \debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT | DEBUG_BACKTRACE_IGNORE_ARGS); $caller_frame = array( 'function' => __FUNCTION__, ); while (isset($bt[0]['object']) && $bt[0]['object'] === $this) { $caller_frame = \array_shift($bt); } foreach ($bt as $frame) { if (isset($frame['object']) && $frame['object'] === $this) { throw new DomainException(__CLASS__.'::'.$caller_frame['function'].' cannot be called from inside a parse'); } } } private function parseGeneric(&$var, BasicObject $o) { $rep = new Representation('Contents'); $rep->contents = $var; $rep->implicit_label = true; $o->addRepresentation($rep); $o->value = $rep; $this->applyPlugins($var, $o, self::TRIGGER_SUCCESS); return $o; } /** * Parses a string into a Kint BlobObject structure. * * @param string $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ private function parseString(&$var, BasicObject $o) { $string = new BlobObject(); $string->transplant($o); $string->encoding = BlobObject::detectEncoding($var); $string->size = BlobObject::strlen($var, $string->encoding); $rep = new Representation('Contents'); $rep->contents = $var; $rep->implicit_label = true; $string->addRepresentation($rep); $string->value = $rep; $this->applyPlugins($var, $string, self::TRIGGER_SUCCESS); return $string; } /** * Parses an array into a Kint object structure. * * @param array $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ private function parseArray(array &$var, BasicObject $o) { $array = new BasicObject(); $array->transplant($o); $array->size = \count($var); if (isset($var[$this->marker])) { --$array->size; $array->hints[] = 'recursion'; $this->applyPlugins($var, $array, self::TRIGGER_RECURSION); return $array; } $rep = new Representation('Contents'); $rep->implicit_label = true; $array->addRepresentation($rep); $array->value = $rep; if (!$array->size) { $this->applyPlugins($var, $array, self::TRIGGER_SUCCESS); return $array; } if ($this->depth_limit && $o->depth >= $this->depth_limit) { $array->hints[] = 'depth_limit'; $this->applyPlugins($var, $array, self::TRIGGER_DEPTH_LIMIT); return $array; } $copy = \array_values($var); // It's really really hard to access numeric string keys in arrays, // and it's really really hard to access integer properties in // objects, so we just use array_values and index by counter to get // at it reliably for reference testing. This also affects access // paths since it's pretty much impossible to access these things // without complicated stuff you should never need to do. $i = 0; // Set the marker for recursion $var[$this->marker] = $array->depth; $refmarker = new stdClass(); foreach ($var as $key => &$val) { if ($key === $this->marker) { continue; } $child = new BasicObject(); $child->name = $key; $child->depth = $array->depth + 1; $child->access = BasicObject::ACCESS_NONE; $child->operator = BasicObject::OPERATOR_ARRAY; if (null !== $array->access_path) { if (\is_string($key) && (string) (int) $key === $key) { $child->access_path = 'array_values('.$array->access_path.')['.$i.']'; // @codeCoverageIgnore } else { $child->access_path = $array->access_path.'['.\var_export($key, true).']'; } } $stash = $val; $copy[$i] = $refmarker; if ($val === $refmarker) { $child->reference = true; $val = $stash; } $rep->contents[] = $this->parse($val, $child); ++$i; } $this->applyPlugins($var, $array, self::TRIGGER_SUCCESS); unset($var[$this->marker]); return $array; } /** * Parses an object into a Kint InstanceObject structure. * * @param object $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ private function parseObject(&$var, BasicObject $o) { $hash = \spl_object_hash($var); $values = (array) $var; $object = new InstanceObject(); $object->transplant($o); $object->classname = \get_class($var); $object->hash = $hash; $object->size = \count($values); if (isset($this->object_hashes[$hash])) { $object->hints[] = 'recursion'; $this->applyPlugins($var, $object, self::TRIGGER_RECURSION); return $object; } $this->object_hashes[$hash] = $object; if ($this->depth_limit && $o->depth >= $this->depth_limit) { $object->hints[] = 'depth_limit'; $this->applyPlugins($var, $object, self::TRIGGER_DEPTH_LIMIT); unset($this->object_hashes[$hash]); return $object; } $reflector = new ReflectionObject($var); if ($reflector->isUserDefined()) { $object->filename = $reflector->getFileName(); $object->startline = $reflector->getStartLine(); } $rep = new Representation('Properties'); $copy = \array_values($values); $refmarker = new stdClass(); $i = 0; // Reflection will not show parent classes private properties, and if a // property was unset it will happly trigger a notice looking for it. foreach ($values as $key => &$val) { // Casting object to array: // private properties show in the form "\0$owner_class_name\0$property_name"; // protected properties show in the form "\0*\0$property_name"; // public properties show in the form "$property_name"; // http://www.php.net/manual/en/language.types.array.php#language.types.array.casting $child = new BasicObject(); $child->depth = $object->depth + 1; $child->owner_class = $object->classname; $child->operator = BasicObject::OPERATOR_OBJECT; $child->access = BasicObject::ACCESS_PUBLIC; $split_key = \explode("\0", $key, 3); if (3 === \count($split_key) && '' === $split_key[0]) { $child->name = $split_key[2]; if ('*' === $split_key[1]) { $child->access = BasicObject::ACCESS_PROTECTED; } else { $child->access = BasicObject::ACCESS_PRIVATE; $child->owner_class = $split_key[1]; } } elseif (KINT_PHP72) { $child->name = (string) $key; } else { $child->name = $key; // @codeCoverageIgnore } if ($this->childHasPath($object, $child)) { $child->access_path = $object->access_path; if (!KINT_PHP72 && \is_int($child->name)) { $child->access_path = 'array_values((array) '.$child->access_path.')['.$i.']'; // @codeCoverageIgnore } elseif (\preg_match('/^[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*$/', $child->name)) { $child->access_path .= '->'.$child->name; } else { $child->access_path .= '->{'.\var_export((string) $child->name, true).'}'; } } $stash = $val; $copy[$i] = $refmarker; if ($val === $refmarker) { $child->reference = true; $val = $stash; } $rep->contents[] = $this->parse($val, $child); ++$i; } $object->addRepresentation($rep); $object->value = $rep; $this->applyPlugins($var, $object, self::TRIGGER_SUCCESS); unset($this->object_hashes[$hash]); return $object; } /** * Parses a resource into a Kint ResourceObject structure. * * @param resource $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ private function parseResource(&$var, BasicObject $o) { $resource = new ResourceObject(); $resource->transplant($o); $resource->resource_type = \get_resource_type($var); $this->applyPlugins($var, $resource, self::TRIGGER_SUCCESS); return $resource; } /** * Parses an unknown into a Kint object structure. * * @param mixed $var The input variable * @param BasicObject $o The base object * * @return BasicObject */ private function parseUnknown(&$var, BasicObject $o) { $o->type = 'unknown'; $this->applyPlugins($var, $o, self::TRIGGER_SUCCESS); return $o; } /** * Applies plugins for an object type. * * @param mixed $var variable * @param BasicObject $o Kint object parsed so far * @param int $trigger The trigger to check for the plugins * * @return bool Continue parsing */ private function applyPlugins(&$var, BasicObject &$o, $trigger) { $break_stash = $this->parse_break; /** @var bool Psalm bug workaround */ $this->parse_break = false; $plugins = array(); if (isset($this->plugins[$o->type][$trigger])) { $plugins = $this->plugins[$o->type][$trigger]; } foreach ($plugins as $plugin) { try { $plugin->parse($var, $o, $trigger); } catch (Exception $e) { \trigger_error( 'An exception ('.\get_class($e).') was thrown in '.$e->getFile().' on line '.$e->getLine().' while executing Kint Parser Plugin "'.\get_class($plugin).'". Error message: '.$e->getMessage(), E_USER_WARNING ); } if ($this->parse_break) { $this->parse_break = $break_stash; return false; } } $this->parse_break = $break_stash; return true; } } |
Commits for paulgoughbooks_old/trunk/system/ThirdParty/Kint/Parser/Parser.php
Revision | Author | Commited | Message |
---|---|---|---|
2 | tporter | Tue 03 Nov, 2020 08:50:21 +0000 | Migration of Paul Goughs Books site to Codeignitor 4 |