1040 lines
32 KiB
PHP
1040 lines
32 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\OptionsResolver;
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use Symfony\Component\OptionsResolver\Exception\AccessException;
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use Symfony\Component\OptionsResolver\Exception\InvalidOptionsException;
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use Symfony\Component\OptionsResolver\Exception\MissingOptionsException;
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use Symfony\Component\OptionsResolver\Exception\NoSuchOptionException;
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use Symfony\Component\OptionsResolver\Exception\OptionDefinitionException;
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use Symfony\Component\OptionsResolver\Exception\UndefinedOptionsException;
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/**
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* Validates options and merges them with default values.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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* @author Tobias Schultze <http://tobion.de>
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*/
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class OptionsResolver implements Options
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{
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/**
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* The names of all defined options.
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*
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* @var array
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*/
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private $defined = array();
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/**
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* The default option values.
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*
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* @var array
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*/
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private $defaults = array();
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/**
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* The names of required options.
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*
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* @var array
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*/
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private $required = array();
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/**
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* The resolved option values.
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*
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* @var array
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*/
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private $resolved = array();
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/**
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* A list of normalizer closures.
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*
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* @var \Closure[]
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*/
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private $normalizers = array();
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/**
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* A list of accepted values for each option.
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*
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* @var array
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*/
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private $allowedValues = array();
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/**
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* A list of accepted types for each option.
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*
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* @var array
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*/
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private $allowedTypes = array();
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/**
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* A list of closures for evaluating lazy options.
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*
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* @var array
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*/
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private $lazy = array();
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/**
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* A list of lazy options whose closure is currently being called.
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*
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* This list helps detecting circular dependencies between lazy options.
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*
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* @var array
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*/
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private $calling = array();
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/**
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* Whether the instance is locked for reading.
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*
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* Once locked, the options cannot be changed anymore. This is
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* necessary in order to avoid inconsistencies during the resolving
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* process. If any option is changed after being read, all evaluated
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* lazy options that depend on this option would become invalid.
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*
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* @var bool
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*/
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private $locked = false;
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private static $typeAliases = array(
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'boolean' => 'bool',
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'integer' => 'int',
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'double' => 'float',
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);
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/**
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* Sets the default value of a given option.
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*
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* If the default value should be set based on other options, you can pass
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* a closure with the following signature:
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*
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* function (Options $options) {
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* // ...
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* }
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*
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* The closure will be evaluated when {@link resolve()} is called. The
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* closure has access to the resolved values of other options through the
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* passed {@link Options} instance:
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*
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* function (Options $options) {
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* if (isset($options['port'])) {
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* // ...
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* }
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* }
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*
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* If you want to access the previously set default value, add a second
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* argument to the closure's signature:
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*
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* $options->setDefault('name', 'Default Name');
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*
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* $options->setDefault('name', function (Options $options, $previousValue) {
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* // 'Default Name' === $previousValue
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* });
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*
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* This is mostly useful if the configuration of the {@link Options} object
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* is spread across different locations of your code, such as base and
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* sub-classes.
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*
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* @param string $option The name of the option
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* @param mixed $value The default value of the option
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*
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* @return OptionsResolver This instance
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*
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setDefault($option, $value)
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{
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// Setting is not possible once resolving starts, because then lazy
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// options could manipulate the state of the object, leading to
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// inconsistent results.
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if ($this->locked) {
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throw new AccessException('Default values cannot be set from a lazy option or normalizer.');
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}
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// If an option is a closure that should be evaluated lazily, store it
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// in the "lazy" property.
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if ($value instanceof \Closure) {
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$reflClosure = new \ReflectionFunction($value);
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$params = $reflClosure->getParameters();
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if (isset($params[0]) && null !== ($class = $params[0]->getClass()) && Options::class === $class->name) {
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// Initialize the option if no previous value exists
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if (!isset($this->defaults[$option])) {
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$this->defaults[$option] = null;
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}
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// Ignore previous lazy options if the closure has no second parameter
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if (!isset($this->lazy[$option]) || !isset($params[1])) {
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$this->lazy[$option] = array();
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}
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// Store closure for later evaluation
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$this->lazy[$option][] = $value;
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$this->defined[$option] = true;
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// Make sure the option is processed
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unset($this->resolved[$option]);
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return $this;
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}
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}
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// This option is not lazy anymore
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unset($this->lazy[$option]);
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// Yet undefined options can be marked as resolved, because we only need
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// to resolve options with lazy closures, normalizers or validation
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// rules, none of which can exist for undefined options
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// If the option was resolved before, update the resolved value
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if (!isset($this->defined[$option]) || array_key_exists($option, $this->resolved)) {
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$this->resolved[$option] = $value;
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}
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$this->defaults[$option] = $value;
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$this->defined[$option] = true;
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return $this;
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}
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/**
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* Sets a list of default values.
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*
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* @param array $defaults The default values to set
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*
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* @return OptionsResolver This instance
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*
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setDefaults(array $defaults)
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{
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foreach ($defaults as $option => $value) {
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$this->setDefault($option, $value);
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}
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return $this;
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}
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/**
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* Returns whether a default value is set for an option.
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*
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* Returns true if {@link setDefault()} was called for this option.
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* An option is also considered set if it was set to null.
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*
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* @param string $option The option name
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*
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* @return bool Whether a default value is set
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*/
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public function hasDefault($option)
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{
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return array_key_exists($option, $this->defaults);
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}
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/**
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* Marks one or more options as required.
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*
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* @param string|string[] $optionNames One or more option names
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*
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* @return OptionsResolver This instance
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*
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setRequired($optionNames)
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{
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if ($this->locked) {
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throw new AccessException('Options cannot be made required from a lazy option or normalizer.');
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}
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foreach ((array) $optionNames as $option) {
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$this->defined[$option] = true;
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$this->required[$option] = true;
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}
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return $this;
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}
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/**
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* Returns whether an option is required.
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*
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* An option is required if it was passed to {@link setRequired()}.
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*
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* @param string $option The name of the option
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*
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* @return bool Whether the option is required
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*/
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public function isRequired($option)
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{
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return isset($this->required[$option]);
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}
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/**
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* Returns the names of all required options.
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*
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* @return string[] The names of the required options
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*
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* @see isRequired()
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*/
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public function getRequiredOptions()
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{
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return array_keys($this->required);
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}
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/**
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* Returns whether an option is missing a default value.
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*
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* An option is missing if it was passed to {@link setRequired()}, but not
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* to {@link setDefault()}. This option must be passed explicitly to
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* {@link resolve()}, otherwise an exception will be thrown.
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*
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* @param string $option The name of the option
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*
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* @return bool Whether the option is missing
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*/
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public function isMissing($option)
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{
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return isset($this->required[$option]) && !array_key_exists($option, $this->defaults);
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}
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/**
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* Returns the names of all options missing a default value.
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*
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* @return string[] The names of the missing options
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*
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* @see isMissing()
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*/
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public function getMissingOptions()
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{
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return array_keys(array_diff_key($this->required, $this->defaults));
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}
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/**
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* Defines a valid option name.
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*
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* Defines an option name without setting a default value. The option will
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* be accepted when passed to {@link resolve()}. When not passed, the
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* option will not be included in the resolved options.
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*
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* @param string|string[] $optionNames One or more option names
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*
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* @return OptionsResolver This instance
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*
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setDefined($optionNames)
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{
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if ($this->locked) {
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throw new AccessException('Options cannot be defined from a lazy option or normalizer.');
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}
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foreach ((array) $optionNames as $option) {
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$this->defined[$option] = true;
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}
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return $this;
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}
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/**
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* Returns whether an option is defined.
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*
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* Returns true for any option passed to {@link setDefault()},
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* {@link setRequired()} or {@link setDefined()}.
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*
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* @param string $option The option name
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*
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* @return bool Whether the option is defined
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*/
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public function isDefined($option)
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{
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return isset($this->defined[$option]);
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}
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/**
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* Returns the names of all defined options.
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*
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* @return string[] The names of the defined options
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*
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* @see isDefined()
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*/
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public function getDefinedOptions()
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{
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return array_keys($this->defined);
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}
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/**
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* Sets the normalizer for an option.
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*
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* The normalizer should be a closure with the following signature:
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*
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* ```php
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* function (Options $options, $value) {
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* // ...
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* }
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* ```
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*
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* The closure is invoked when {@link resolve()} is called. The closure
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* has access to the resolved values of other options through the passed
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* {@link Options} instance.
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*
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* The second parameter passed to the closure is the value of
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* the option.
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*
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* The resolved option value is set to the return value of the closure.
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*
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* @param string $option The option name
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* @param \Closure $normalizer The normalizer
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*
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* @return OptionsResolver This instance
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*
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* @throws UndefinedOptionsException If the option is undefined
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setNormalizer($option, \Closure $normalizer)
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{
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if ($this->locked) {
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throw new AccessException('Normalizers cannot be set from a lazy option or normalizer.');
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}
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if (!isset($this->defined[$option])) {
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throw new UndefinedOptionsException(sprintf(
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'The option "%s" does not exist. Defined options are: "%s".',
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$option,
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implode('", "', array_keys($this->defined))
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));
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}
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$this->normalizers[$option] = $normalizer;
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// Make sure the option is processed
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unset($this->resolved[$option]);
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return $this;
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}
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/**
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* Sets allowed values for an option.
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*
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* Instead of passing values, you may also pass a closures with the
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* following signature:
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*
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* function ($value) {
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* // return true or false
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* }
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*
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* The closure receives the value as argument and should return true to
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* accept the value and false to reject the value.
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*
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* @param string $option The option name
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* @param mixed $allowedValues One or more acceptable values/closures
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*
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* @return OptionsResolver This instance
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*
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* @throws UndefinedOptionsException If the option is undefined
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setAllowedValues($option, $allowedValues)
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{
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if ($this->locked) {
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throw new AccessException('Allowed values cannot be set from a lazy option or normalizer.');
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}
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if (!isset($this->defined[$option])) {
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throw new UndefinedOptionsException(sprintf(
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'The option "%s" does not exist. Defined options are: "%s".',
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$option,
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implode('", "', array_keys($this->defined))
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));
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}
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$this->allowedValues[$option] = is_array($allowedValues) ? $allowedValues : array($allowedValues);
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// Make sure the option is processed
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unset($this->resolved[$option]);
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return $this;
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}
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/**
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* Adds allowed values for an option.
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*
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* The values are merged with the allowed values defined previously.
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*
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* Instead of passing values, you may also pass a closures with the
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* following signature:
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*
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* function ($value) {
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* // return true or false
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* }
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*
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* The closure receives the value as argument and should return true to
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* accept the value and false to reject the value.
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*
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* @param string $option The option name
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* @param mixed $allowedValues One or more acceptable values/closures
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*
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* @return OptionsResolver This instance
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*
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* @throws UndefinedOptionsException If the option is undefined
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function addAllowedValues($option, $allowedValues)
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{
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if ($this->locked) {
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throw new AccessException('Allowed values cannot be added from a lazy option or normalizer.');
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}
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if (!isset($this->defined[$option])) {
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throw new UndefinedOptionsException(sprintf(
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'The option "%s" does not exist. Defined options are: "%s".',
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$option,
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implode('", "', array_keys($this->defined))
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));
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}
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if (!is_array($allowedValues)) {
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$allowedValues = array($allowedValues);
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}
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if (!isset($this->allowedValues[$option])) {
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$this->allowedValues[$option] = $allowedValues;
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} else {
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$this->allowedValues[$option] = array_merge($this->allowedValues[$option], $allowedValues);
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}
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// Make sure the option is processed
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unset($this->resolved[$option]);
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return $this;
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}
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|
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/**
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* Sets allowed types for an option.
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*
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* Any type for which a corresponding is_<type>() function exists is
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* acceptable. Additionally, fully-qualified class or interface names may
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* be passed.
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*
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* @param string $option The option name
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* @param string|string[] $allowedTypes One or more accepted types
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*
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* @return OptionsResolver This instance
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*
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* @throws UndefinedOptionsException If the option is undefined
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* @throws AccessException If called from a lazy option or normalizer
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*/
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public function setAllowedTypes($option, $allowedTypes)
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{
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if ($this->locked) {
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throw new AccessException('Allowed types cannot be set from a lazy option or normalizer.');
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}
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if (!isset($this->defined[$option])) {
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throw new UndefinedOptionsException(sprintf(
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'The option "%s" does not exist. Defined options are: "%s".',
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$option,
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implode('", "', array_keys($this->defined))
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));
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}
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$this->allowedTypes[$option] = (array) $allowedTypes;
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// Make sure the option is processed
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unset($this->resolved[$option]);
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return $this;
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}
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|
|
/**
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* Adds allowed types for an option.
|
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*
|
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* The types are merged with the allowed types defined previously.
|
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*
|
|
* Any type for which a corresponding is_<type>() function exists is
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* acceptable. Additionally, fully-qualified class or interface names may
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* be passed.
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*
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* @param string $option The option name
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* @param string|string[] $allowedTypes One or more accepted types
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*
|
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* @return OptionsResolver This instance
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*
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* @throws UndefinedOptionsException If the option is undefined
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* @throws AccessException If called from a lazy option or normalizer
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*/
|
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public function addAllowedTypes($option, $allowedTypes)
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{
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if ($this->locked) {
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throw new AccessException('Allowed types cannot be added from a lazy option or normalizer.');
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}
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|
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if (!isset($this->defined[$option])) {
|
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throw new UndefinedOptionsException(sprintf(
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'The option "%s" does not exist. Defined options are: "%s".',
|
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$option,
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implode('", "', array_keys($this->defined))
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));
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}
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if (!isset($this->allowedTypes[$option])) {
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$this->allowedTypes[$option] = (array) $allowedTypes;
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} else {
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$this->allowedTypes[$option] = array_merge($this->allowedTypes[$option], (array) $allowedTypes);
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}
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// Make sure the option is processed
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unset($this->resolved[$option]);
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return $this;
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}
|
|
|
|
/**
|
|
* Removes the option with the given name.
|
|
*
|
|
* Undefined options are ignored.
|
|
*
|
|
* @param string|string[] $optionNames One or more option names
|
|
*
|
|
* @return OptionsResolver This instance
|
|
*
|
|
* @throws AccessException If called from a lazy option or normalizer
|
|
*/
|
|
public function remove($optionNames)
|
|
{
|
|
if ($this->locked) {
|
|
throw new AccessException('Options cannot be removed from a lazy option or normalizer.');
|
|
}
|
|
|
|
foreach ((array) $optionNames as $option) {
|
|
unset($this->defined[$option], $this->defaults[$option], $this->required[$option], $this->resolved[$option]);
|
|
unset($this->lazy[$option], $this->normalizers[$option], $this->allowedTypes[$option], $this->allowedValues[$option]);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Removes all options.
|
|
*
|
|
* @return OptionsResolver This instance
|
|
*
|
|
* @throws AccessException If called from a lazy option or normalizer
|
|
*/
|
|
public function clear()
|
|
{
|
|
if ($this->locked) {
|
|
throw new AccessException('Options cannot be cleared from a lazy option or normalizer.');
|
|
}
|
|
|
|
$this->defined = array();
|
|
$this->defaults = array();
|
|
$this->required = array();
|
|
$this->resolved = array();
|
|
$this->lazy = array();
|
|
$this->normalizers = array();
|
|
$this->allowedTypes = array();
|
|
$this->allowedValues = array();
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Merges options with the default values stored in the container and
|
|
* validates them.
|
|
*
|
|
* Exceptions are thrown if:
|
|
*
|
|
* - Undefined options are passed;
|
|
* - Required options are missing;
|
|
* - Options have invalid types;
|
|
* - Options have invalid values.
|
|
*
|
|
* @param array $options A map of option names to values
|
|
*
|
|
* @return array The merged and validated options
|
|
*
|
|
* @throws UndefinedOptionsException If an option name is undefined
|
|
* @throws InvalidOptionsException If an option doesn't fulfill the
|
|
* specified validation rules
|
|
* @throws MissingOptionsException If a required option is missing
|
|
* @throws OptionDefinitionException If there is a cyclic dependency between
|
|
* lazy options and/or normalizers
|
|
* @throws NoSuchOptionException If a lazy option reads an unavailable option
|
|
* @throws AccessException If called from a lazy option or normalizer
|
|
*/
|
|
public function resolve(array $options = array())
|
|
{
|
|
if ($this->locked) {
|
|
throw new AccessException('Options cannot be resolved from a lazy option or normalizer.');
|
|
}
|
|
|
|
// Allow this method to be called multiple times
|
|
$clone = clone $this;
|
|
|
|
// Make sure that no unknown options are passed
|
|
$diff = array_diff_key($options, $clone->defined);
|
|
|
|
if (count($diff) > 0) {
|
|
ksort($clone->defined);
|
|
ksort($diff);
|
|
|
|
throw new UndefinedOptionsException(sprintf(
|
|
(count($diff) > 1 ? 'The options "%s" do not exist.' : 'The option "%s" does not exist.').' Defined options are: "%s".',
|
|
implode('", "', array_keys($diff)),
|
|
implode('", "', array_keys($clone->defined))
|
|
));
|
|
}
|
|
|
|
// Override options set by the user
|
|
foreach ($options as $option => $value) {
|
|
$clone->defaults[$option] = $value;
|
|
unset($clone->resolved[$option], $clone->lazy[$option]);
|
|
}
|
|
|
|
// Check whether any required option is missing
|
|
$diff = array_diff_key($clone->required, $clone->defaults);
|
|
|
|
if (count($diff) > 0) {
|
|
ksort($diff);
|
|
|
|
throw new MissingOptionsException(sprintf(
|
|
count($diff) > 1 ? 'The required options "%s" are missing.' : 'The required option "%s" is missing.',
|
|
implode('", "', array_keys($diff))
|
|
));
|
|
}
|
|
|
|
// Lock the container
|
|
$clone->locked = true;
|
|
|
|
// Now process the individual options. Use offsetGet(), which resolves
|
|
// the option itself and any options that the option depends on
|
|
foreach ($clone->defaults as $option => $_) {
|
|
$clone->offsetGet($option);
|
|
}
|
|
|
|
return $clone->resolved;
|
|
}
|
|
|
|
/**
|
|
* Returns the resolved value of an option.
|
|
*
|
|
* @param string $option The option name
|
|
*
|
|
* @return mixed The option value
|
|
*
|
|
* @throws AccessException If accessing this method outside of
|
|
* {@link resolve()}
|
|
* @throws NoSuchOptionException If the option is not set
|
|
* @throws InvalidOptionsException If the option doesn't fulfill the
|
|
* specified validation rules
|
|
* @throws OptionDefinitionException If there is a cyclic dependency between
|
|
* lazy options and/or normalizers
|
|
*/
|
|
public function offsetGet($option)
|
|
{
|
|
if (!$this->locked) {
|
|
throw new AccessException('Array access is only supported within closures of lazy options and normalizers.');
|
|
}
|
|
|
|
// Shortcut for resolved options
|
|
if (array_key_exists($option, $this->resolved)) {
|
|
return $this->resolved[$option];
|
|
}
|
|
|
|
// Check whether the option is set at all
|
|
if (!array_key_exists($option, $this->defaults)) {
|
|
if (!isset($this->defined[$option])) {
|
|
throw new NoSuchOptionException(sprintf(
|
|
'The option "%s" does not exist. Defined options are: "%s".',
|
|
$option,
|
|
implode('", "', array_keys($this->defined))
|
|
));
|
|
}
|
|
|
|
throw new NoSuchOptionException(sprintf(
|
|
'The optional option "%s" has no value set. You should make sure it is set with "isset" before reading it.',
|
|
$option
|
|
));
|
|
}
|
|
|
|
$value = $this->defaults[$option];
|
|
|
|
// Resolve the option if the default value is lazily evaluated
|
|
if (isset($this->lazy[$option])) {
|
|
// If the closure is already being called, we have a cyclic
|
|
// dependency
|
|
if (isset($this->calling[$option])) {
|
|
throw new OptionDefinitionException(sprintf(
|
|
'The options "%s" have a cyclic dependency.',
|
|
implode('", "', array_keys($this->calling))
|
|
));
|
|
}
|
|
|
|
// The following section must be protected from cyclic
|
|
// calls. Set $calling for the current $option to detect a cyclic
|
|
// dependency
|
|
// BEGIN
|
|
$this->calling[$option] = true;
|
|
try {
|
|
foreach ($this->lazy[$option] as $closure) {
|
|
$value = $closure($this, $value);
|
|
}
|
|
} finally {
|
|
unset($this->calling[$option]);
|
|
}
|
|
// END
|
|
}
|
|
|
|
// Validate the type of the resolved option
|
|
if (isset($this->allowedTypes[$option])) {
|
|
$valid = false;
|
|
|
|
foreach ($this->allowedTypes[$option] as $type) {
|
|
$type = isset(self::$typeAliases[$type]) ? self::$typeAliases[$type] : $type;
|
|
|
|
if (function_exists($isFunction = 'is_'.$type)) {
|
|
if ($isFunction($value)) {
|
|
$valid = true;
|
|
break;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if ($value instanceof $type) {
|
|
$valid = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!$valid) {
|
|
throw new InvalidOptionsException(sprintf(
|
|
'The option "%s" with value %s is expected to be of type '.
|
|
'"%s", but is of type "%s".',
|
|
$option,
|
|
$this->formatValue($value),
|
|
implode('" or "', $this->allowedTypes[$option]),
|
|
$this->formatTypeOf($value)
|
|
));
|
|
}
|
|
}
|
|
|
|
// Validate the value of the resolved option
|
|
if (isset($this->allowedValues[$option])) {
|
|
$success = false;
|
|
$printableAllowedValues = array();
|
|
|
|
foreach ($this->allowedValues[$option] as $allowedValue) {
|
|
if ($allowedValue instanceof \Closure) {
|
|
if ($allowedValue($value)) {
|
|
$success = true;
|
|
break;
|
|
}
|
|
|
|
// Don't include closures in the exception message
|
|
continue;
|
|
} elseif ($value === $allowedValue) {
|
|
$success = true;
|
|
break;
|
|
}
|
|
|
|
$printableAllowedValues[] = $allowedValue;
|
|
}
|
|
|
|
if (!$success) {
|
|
$message = sprintf(
|
|
'The option "%s" with value %s is invalid.',
|
|
$option,
|
|
$this->formatValue($value)
|
|
);
|
|
|
|
if (count($printableAllowedValues) > 0) {
|
|
$message .= sprintf(
|
|
' Accepted values are: %s.',
|
|
$this->formatValues($printableAllowedValues)
|
|
);
|
|
}
|
|
|
|
throw new InvalidOptionsException($message);
|
|
}
|
|
}
|
|
|
|
// Normalize the validated option
|
|
if (isset($this->normalizers[$option])) {
|
|
// If the closure is already being called, we have a cyclic
|
|
// dependency
|
|
if (isset($this->calling[$option])) {
|
|
throw new OptionDefinitionException(sprintf(
|
|
'The options "%s" have a cyclic dependency.',
|
|
implode('", "', array_keys($this->calling))
|
|
));
|
|
}
|
|
|
|
$normalizer = $this->normalizers[$option];
|
|
|
|
// The following section must be protected from cyclic
|
|
// calls. Set $calling for the current $option to detect a cyclic
|
|
// dependency
|
|
// BEGIN
|
|
$this->calling[$option] = true;
|
|
try {
|
|
$value = $normalizer($this, $value);
|
|
} finally {
|
|
unset($this->calling[$option]);
|
|
}
|
|
// END
|
|
}
|
|
|
|
// Mark as resolved
|
|
$this->resolved[$option] = $value;
|
|
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* Returns whether a resolved option with the given name exists.
|
|
*
|
|
* @param string $option The option name
|
|
*
|
|
* @return bool Whether the option is set
|
|
*
|
|
* @throws AccessException If accessing this method outside of {@link resolve()}
|
|
*
|
|
* @see \ArrayAccess::offsetExists()
|
|
*/
|
|
public function offsetExists($option)
|
|
{
|
|
if (!$this->locked) {
|
|
throw new AccessException('Array access is only supported within closures of lazy options and normalizers.');
|
|
}
|
|
|
|
return array_key_exists($option, $this->defaults);
|
|
}
|
|
|
|
/**
|
|
* Not supported.
|
|
*
|
|
* @throws AccessException
|
|
*/
|
|
public function offsetSet($option, $value)
|
|
{
|
|
throw new AccessException('Setting options via array access is not supported. Use setDefault() instead.');
|
|
}
|
|
|
|
/**
|
|
* Not supported.
|
|
*
|
|
* @throws AccessException
|
|
*/
|
|
public function offsetUnset($option)
|
|
{
|
|
throw new AccessException('Removing options via array access is not supported. Use remove() instead.');
|
|
}
|
|
|
|
/**
|
|
* Returns the number of set options.
|
|
*
|
|
* This may be only a subset of the defined options.
|
|
*
|
|
* @return int Number of options
|
|
*
|
|
* @throws AccessException If accessing this method outside of {@link resolve()}
|
|
*
|
|
* @see \Countable::count()
|
|
*/
|
|
public function count()
|
|
{
|
|
if (!$this->locked) {
|
|
throw new AccessException('Counting is only supported within closures of lazy options and normalizers.');
|
|
}
|
|
|
|
return count($this->defaults);
|
|
}
|
|
|
|
/**
|
|
* Returns a string representation of the type of the value.
|
|
*
|
|
* This method should be used if you pass the type of a value as
|
|
* message parameter to a constraint violation. Note that such
|
|
* parameters should usually not be included in messages aimed at
|
|
* non-technical people.
|
|
*
|
|
* @param mixed $value The value to return the type of
|
|
*
|
|
* @return string The type of the value
|
|
*/
|
|
private function formatTypeOf($value)
|
|
{
|
|
return is_object($value) ? get_class($value) : gettype($value);
|
|
}
|
|
|
|
/**
|
|
* Returns a string representation of the value.
|
|
*
|
|
* This method returns the equivalent PHP tokens for most scalar types
|
|
* (i.e. "false" for false, "1" for 1 etc.). Strings are always wrapped
|
|
* in double quotes (").
|
|
*
|
|
* @param mixed $value The value to format as string
|
|
*
|
|
* @return string The string representation of the passed value
|
|
*/
|
|
private function formatValue($value)
|
|
{
|
|
if (is_object($value)) {
|
|
return get_class($value);
|
|
}
|
|
|
|
if (is_array($value)) {
|
|
return 'array';
|
|
}
|
|
|
|
if (is_string($value)) {
|
|
return '"'.$value.'"';
|
|
}
|
|
|
|
if (is_resource($value)) {
|
|
return 'resource';
|
|
}
|
|
|
|
if (null === $value) {
|
|
return 'null';
|
|
}
|
|
|
|
if (false === $value) {
|
|
return 'false';
|
|
}
|
|
|
|
if (true === $value) {
|
|
return 'true';
|
|
}
|
|
|
|
return (string) $value;
|
|
}
|
|
|
|
/**
|
|
* Returns a string representation of a list of values.
|
|
*
|
|
* Each of the values is converted to a string using
|
|
* {@link formatValue()}. The values are then concatenated with commas.
|
|
*
|
|
* @param array $values A list of values
|
|
*
|
|
* @return string The string representation of the value list
|
|
*
|
|
* @see formatValue()
|
|
*/
|
|
private function formatValues(array $values)
|
|
{
|
|
foreach ($values as $key => $value) {
|
|
$values[$key] = $this->formatValue($value);
|
|
}
|
|
|
|
return implode(', ', $values);
|
|
}
|
|
}
|