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<?php |
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/****************************************************************************** |
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* An implementation of dicto (scg.unibe.ch/dicto) in and for PHP. |
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* |
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* Copyright (c) 2016 Richard Klees <[email protected]> |
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* |
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* This software is licensed under The MIT License. You should have received |
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* a copy of the licence along with the code. |
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*/ |
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namespace Lechimp\Dicto; |
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class Dicto { |
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private function __construct() {} |
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static private $rt = null; |
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/** |
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* Discard the current definition if there is any. |
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*/ |
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public static function discardDefinition() { |
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self::$rt = null; |
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} |
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/** |
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* Start the definition of a new ruleset. |
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* |
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* @throws \RuntimeException if definition was already started |
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*/ |
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public static function startDefinition() { |
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if (self::$rt !== null) { |
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throw new \RuntimeException("Already started a rule definition"); |
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} |
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self::$rt = new Definition\RuleDefinitionRT(); |
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} |
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/** |
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* Discard the current definition if there is any. |
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* |
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* @throws \RuntimeException if definition was not started or already ended |
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* @return array containing Definition\RuleSet and config-array |
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*/ |
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public static function endDefinition() { |
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if (self::$rt === null) { |
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throw new \RuntimeException("Already ended or not even started the rule definition"); |
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} |
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$rule_set = self::$rt->ruleset(); |
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$config = self::$rt->configuration(); |
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self::discardDefinition(); |
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return array($rule_set, $config ? $config : array()); |
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} |
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/** |
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* Define a only-rule. |
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* |
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* @throws \RuntimeException if previous variable declaration has not finished |
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* @throws \RuntimeException |
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* @return Fluid\Only |
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*/ |
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public static function only() { |
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if (self::$rt === null) { |
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throw new \RuntimeException( |
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"No variable definition allowed outside ruleset definition."); |
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} |
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return self::$rt->only(); |
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} |
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/** |
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* Define the configuration for the project according to App\Config. |
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* |
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* @param array |
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* @return null |
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*/ |
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public static function configuration(array $config) { |
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self::$rt->configuration($config); |
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} |
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/** |
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* Define a new variable or reference an already defined variable to define |
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* a rule. |
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* |
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* @throws \InvalidArgumentException if $arguments are passed |
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* @throws \RuntimeException if previous variable declaration was not finished |
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* @throws \RuntimeException if definition was not started |
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* @return NewVar|RuleVar |
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*/ |
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public static function __callStatic($name, $arguments) { |
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# ToDo: This is used in Definition\Fluid\Means as well. |
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if (count($arguments) != 0) { |
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throw new \InvalidArgumentException( |
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"No arguments are allowed for definition of ". |
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"or reference to variable."); |
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} |
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if (self::$rt === null) { |
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throw new \RuntimeException( |
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"No variable definition allowed outside ruleset definition."); |
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} |
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return self::$rt->variable($name); |
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} |
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} |
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lechimp-p /
dicto.php
