524 lines
16 KiB
PHP
524 lines
16 KiB
PHP
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<?php
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namespace nur\sery\wip\php;
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use Closure;
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use nur\sery\cl;
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use nur\sery\ref\php\ref_func;
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use nur\sery\str;
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use nur\sery\ValueException;
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use ReflectionClass;
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use ReflectionFunction;
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use ReflectionMethod;
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/**
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* Class func: outils pour appeler des fonctions et méthodes dynamiquement
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*
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* Les formats supportés sont:
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* - fonctions globales
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* - "func" si function_exists("func")
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* - [false, "func", ...]
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* - méthodes statiques
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* - "::method" méthode à lier à une classe avant l'appel
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* - "class::method"
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* - ["method"] si !class_exists("method")
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* - [null, "method", ...] méthode à lier à une classe avant l'appel
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* - ["class", "method", ...]
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* - méthodes
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* - "->method" méthode à lier à un objet avant l'appel
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* - ["method"] si !class_exists("method")
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* - [null, "method", ...] méthode à lier à un objet avant l'appel
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* - [$object, "method", ...]
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* - classes
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* - "class" si !function_exists("class")
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* - "class::"
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* - ["class"] si class_exists("class")
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* - ["class", null, ...]
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*
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* les formes "func" et "class" sont distinguées en vérifiant l'existence de la
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* fonction
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*
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* les formes ["class"] et ["method"] sont distinguées en vérifiant l'existence
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* de la classe
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*/
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class func {
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/** tester si $value est une chaine non vide */
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private static function is_ne($value): bool {
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return is_string($value) && strlen($value) > 0;
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}
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/**
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* tester si $func est d'une des formes suivantes:
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* - "func" si function_exists("func")
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* - [false, "func", ...]
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*/
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static final function is_global($func): bool {
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if (self::is_ne($func)) {
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$pos = strpos($func, "::");
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return $pos === false && function_exists($func);
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} elseif (is_array($func)) {
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return ($func[0] ?? null) === false
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&& self::is_ne($func[1] ?? null);
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}
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return false;
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}
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static final function fix_global_args(&$func, ?array &$args): bool {
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if ($args === null) $args = [];
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if (is_array($func)) {
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if (count($func) > 2) {
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$prefix_args = array_slice($func, 2);
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$func = array_slice($func, 1, 1)[0];
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$args = array_merge($prefix_args, $args);
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} else {
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$func = $func[0];
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}
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return true;
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}
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return false;
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}
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/**
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* tester si $func est d'une des formes suivantes:
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* - "::method"
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* - "class::method"
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* - ["method"] si !class_exists("method")
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* - [anything, "method", ...]
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*/
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static final function is_static($func): bool {
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if (self::is_ne($func)) {
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$pos = strpos($func, "::");
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return $pos !== false && $pos + 2 < strlen($func);
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} elseif (is_array($func) && array_key_exists(0, $func)) {
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$count = count($func);
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if ($count == 1) {
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return self::is_ne($func[0]) && !class_exists($func[0]);
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} elseif ($count > 1 && array_key_exists(1, $func)) {
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return self::is_ne($func[1]);
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}
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}
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return false;
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}
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/**
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* en assumant que {@link self::is_static()} retourne true:
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* - si $func est une chaine de la forme "::method" alors la remplacer par la
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* chaine "$class::method"
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* - si $func est un tableau de la forme ["method"] ou [null, "method"], alors
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* le remplacer par [$class, "method"]
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*
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* @return bool true si la correction a été faite
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*/
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static final function fix_static(&$func, $class): bool {
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if (is_object($class)) $class = get_class($class);
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if (is_string($func)) {
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if (substr($func, 0, 2) == "::") {
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$func = "$class$func";
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return true;
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}
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} else {
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$count = count($func);
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if ($count == 1) {
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$func = [$class, $func[0]];
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return true;
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} elseif ($count > 1 && $func[0] === null) {
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$func[0] = $class;
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return true;
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}
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}
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return false;
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}
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/** tester si $method est une chaine de la forme "->method" */
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private static function isam(&$method, bool $requireArrow=false): bool {
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if (is_string($method)) {
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if (substr($method, 0, 2) == "->") {
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$method = substr($method, 2);
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} elseif ($requireArrow) {
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return false;
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}
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return strlen($method) > 0;
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}
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return false;
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}
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/**
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* tester si $func est d'une des formes suivantes:
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* - "->method"
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* - ["method"] si !class_exists("method")
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* - [anything, "method", ...]
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*/
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static final function is_method($func): bool {
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if (is_string($func)) {
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return self::isam($func, true);
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} elseif (is_array($func) && array_key_exists(0, $func)) {
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$count = count($func);
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if ($count == 1) {
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return self::isam($func[0]) && !class_exists($func[0]);
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} elseif ($count > 1 && array_key_exists(1, $func)) {
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return self::isam($func[1]);
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}
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}
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return false;
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}
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/**
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* en assumant que {@link self::is_method()} retourne true:
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* - si $func est une chaine de la forme "->method" alors la remplacer par le
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* tableau [$object, "method"]
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* - si $func est un tableau de la forme ["method"] ou [anything, "method"],
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* alors le remplacer par [$object, "method"]
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*
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* @return bool true si la correction a été faite
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*/
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static final function fix_method(&$func, $object): bool {
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if (!is_object($object)) return false;
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if (is_string($func)) {
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if (self::isam($func)) {
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$func = [$object, $func];
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return true;
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}
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} else {
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$count = count($func);
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if ($count == 1) {
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self::isam($func[0]);
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$func = [$object, $func[0]];
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return true;
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} else {
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$func[0] = $object;
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self::isam($func[1]);
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return true;
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}
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}
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return false;
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}
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/**
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* si $func est un tableau de plus de 2 éléments, alors déplacer les éléments
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* supplémentaires au début de $args. par exemple:
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* ~~~
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* $func = ["class", "method", "arg1", "arg2"];
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* $args = ["arg3"];
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* func::fix_args($func, $args)
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* # $func === ["class", "method"]
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* # $args === ["arg1", "arg2", "arg3"]
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* ~~~
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*
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* @return bool true si la correction a été faite
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*/
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static final function fix_args(&$func, ?array &$args): bool {
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if ($args === null) $args = [];
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if (is_array($func) && count($func) > 2) {
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$prefix_args = array_slice($func, 2);
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$func = array_slice($func, 0, 2);
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$args = array_merge($prefix_args, $args);
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return true;
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}
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return false;
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}
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/**
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* s'assurer que $func est un appel de méthode ou d'une méthode statique;
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* et renseigner le cas échéant les arguments. si $func ne fait pas mention
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* de la classe ou de l'objet, le renseigner avec $class_or_object.
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*
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* @return bool true si c'est une fonction valide. il ne reste plus qu'à
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* l'appeler avec {@link call()}
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*/
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static final function check_func(&$func, $class_or_object, &$args=null): bool {
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if ($func instanceof Closure) return true;
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if (self::is_method($func)) {
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# méthode
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self::fix_method($func, $class_or_object);
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self::fix_args($func, $args);
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return true;
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} elseif (self::is_static($func)) {
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# méthode statique
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self::fix_static($func, $class_or_object);
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self::fix_args($func, $args);
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return true;
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}
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return false;
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}
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/**
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* Comme {@link check_func()} mais lance une exception si la fonction est
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* invalide
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*
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* @throws ValueException si $func n'est pas une fonction ou une méthode valide
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*/
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static final function ensure_func(&$func, $class_or_object, &$args=null): void {
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if (!self::check_func($func, $class_or_object, $args)) {
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throw ValueException::invalid_type($func, "callable");
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}
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}
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static final function _prepare($func): array {
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$object = null;
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if (is_callable($func)) {
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if (is_array($func)) {
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$rf = new ReflectionMethod(...$func);
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$object = $func[0];
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if (is_string($object)) $object = null;
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} elseif ($func instanceof Closure) {
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$rf = new ReflectionFunction($func);
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} elseif (is_string($func) && strpos($func, "::") === false) {
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$rf = new ReflectionFunction($func);
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} else {
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$rf = new ReflectionMethod($func);
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}
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} elseif ($func instanceof ReflectionMethod) {
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$rf = $func;
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} elseif ($func instanceof ReflectionFunction) {
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$rf = $func;
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} elseif (is_array($func) && count($func) == 2 && isset($func[0]) && isset($func[1])
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&& ($func[1] instanceof ReflectionMethod || $func[1] instanceof ReflectionFunction)) {
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$object = $func[0];
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if (is_string($object)) $object = null;
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$rf = $func[1];
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} elseif (is_string($func) && strpos($func, "::") === false) {
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$rf = new ReflectionFunction($func);
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} else {
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throw ValueException::invalid_type($func, "callable");
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}
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$minArgs = $rf->getNumberOfRequiredParameters();
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$maxArgs = $rf->getNumberOfParameters();
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$variadic = $rf->isVariadic();
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return [$rf instanceof ReflectionMethod, $object, $rf, $minArgs, $maxArgs, $variadic];
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}
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static final function _fill(array $context, array &$args): void {
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$minArgs = $context[3];
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$maxArgs = $context[4];
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$variadic = $context[5];
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if (!$variadic) $args = array_slice($args, 0, $maxArgs);
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while (count($args) < $minArgs) $args[] = null;
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}
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static final function _call($context, array $args) {
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self::_fill($context, $args);
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$use_object = $context[0];
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$object = $context[1];
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$method = $context[2];
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if ($use_object) {
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if (count($args) === 0) return $method->invoke($object);
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else return $method->invokeArgs($object, $args);
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} else {
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if (count($args) === 0) return $method->invoke();
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else return $method->invokeArgs($args);
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}
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}
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/**
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* Appeler la fonction spécifiée avec les arguments spécifiés.
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* Adapter $args en fonction du nombre réel d'arguments de $func
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*
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* @param callable|ReflectionFunction|ReflectionMethod $func
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*/
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static final function call($func, ...$args) {
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return self::_call(self::_prepare($func), $args);
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}
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/** remplacer $value par $func($value, ...$args) */
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static final function apply(&$value, $func, ...$args): void {
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if ($func !== null) {
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if ($args) $args = array_merge([$value], $args);
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else $args = [$value];
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$value = self::call($func, ...$args);
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}
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}
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const MASK_PS = ReflectionMethod::IS_PUBLIC | ReflectionMethod::IS_STATIC;
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const MASK_P = ReflectionMethod::IS_PUBLIC;
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const METHOD_PS = ReflectionMethod::IS_PUBLIC | ReflectionMethod::IS_STATIC;
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const METHOD_P = ReflectionMethod::IS_PUBLIC;
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private static final function matches(string $name, array $includes, array $excludes): bool {
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if ($includes) {
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$matches = false;
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foreach ($includes as $include) {
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if (substr($include, 0, 1) == "/") {
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# expression régulière
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if (preg_match($include, $name)) {
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$matches = true;
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break;
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}
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} else {
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# tester la présence de la sous-chaine
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if (strpos($name, $include) !== false) {
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$matches = true;
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break;
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}
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}
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}
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if (!$matches) return false;
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}
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foreach ($excludes as $exclude) {
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if (substr($exclude, 0, 1) == "/") {
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# expression régulière
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if (preg_match($exclude, $name)) return false;
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} else {
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# tester la présence de la sous-chaine
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|
|
if (strpos($name, $exclude) !== false) return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** @var Schema */
|
||
|
|
private static $call_all_params_schema;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* retourner la liste des méthodes de $class_or_object qui correspondent au
|
||
|
|
* filtre $options. le filtre doit respecter le schéme {@link CALL_ALL_PARAMS_SCHEMA}
|
||
|
|
*/
|
||
|
|
static function get_all($class_or_object, $params=null): array {
|
||
|
|
Schema::nv($paramsv, $params, null
|
||
|
|
, self::$call_all_params_schema, ref_func::CALL_ALL_PARAMS_SCHEMA);
|
||
|
|
if (is_callable($class_or_object, true) && is_array($class_or_object)) {
|
||
|
|
# callable sous forme de tableau
|
||
|
|
$class_or_object = $class_or_object[0];
|
||
|
|
}
|
||
|
|
if (is_string($class_or_object)) {
|
||
|
|
# lister les méthodes publiques statiques de la classe
|
||
|
|
$mask = self::MASK_PS;
|
||
|
|
$expected = self::METHOD_PS;
|
||
|
|
$c = new ReflectionClass($class_or_object);
|
||
|
|
} elseif (is_object($class_or_object)) {
|
||
|
|
# lister les méthodes publiques de la classe
|
||
|
|
$c = new ReflectionClass($class_or_object);
|
||
|
|
$mask = $params["static_only"]? self::MASK_PS: self::MASK_P;
|
||
|
|
$expected = $params["static_only"]? self::METHOD_PS: self::METHOD_P;
|
||
|
|
} else {
|
||
|
|
throw new ValueException("$class_or_object: vous devez spécifier une classe ou un objet");
|
||
|
|
}
|
||
|
|
$prefix = $params["prefix"]; $prefixlen = strlen($prefix);
|
||
|
|
$args = $params["args"];
|
||
|
|
$includes = $params["include"];
|
||
|
|
$excludes = $params["exclude"];
|
||
|
|
$methods = [];
|
||
|
|
foreach ($c->getMethods() as $m) {
|
||
|
|
if (($m->getModifiers() & $mask) != $expected) continue;
|
||
|
|
$name = $m->getName();
|
||
|
|
if (substr($name, 0, $prefixlen) != $prefix) continue;
|
||
|
|
if (!self::matches($name, $includes, $excludes)) continue;
|
||
|
|
$methods[] = cl::merge([$class_or_object, $name], $args);
|
||
|
|
}
|
||
|
|
return $methods;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Appeler toutes les méthodes publiques de $object_or_class et retourner un
|
||
|
|
* tableau [$method_name => $return_value] des valeurs de retour.
|
||
|
|
*/
|
||
|
|
static final function call_all($class_or_object, $params=null): array {
|
||
|
|
$methods = self::get_all($class_or_object, $params);
|
||
|
|
$values = [];
|
||
|
|
foreach ($methods as $method) {
|
||
|
|
self::fix_args($method, $args);
|
||
|
|
$values[$method[1]] = self::call($method, ...$args);
|
||
|
|
}
|
||
|
|
return $values;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* tester si $class est d'une des formes suivantes:
|
||
|
|
* - "class" si !function_exists("class")
|
||
|
|
* - "class::"
|
||
|
|
* - ["class"] si class_exists("class")
|
||
|
|
* - ["class", null, ...]
|
||
|
|
*/
|
||
|
|
static final function is_class($class): bool {
|
||
|
|
if (self::is_ne($class)) {
|
||
|
|
return str::ends_with("::", $class)
|
||
|
|
|| !function_exists($class);
|
||
|
|
} elseif (is_array($class) && self::is_ne($class[0] ?? null)) {
|
||
|
|
$count = count($class);
|
||
|
|
if ($count == 1) {
|
||
|
|
return class_exists($class[0]);
|
||
|
|
} elseif ($count > 1 && array_key_exists(1, $class)) {
|
||
|
|
return $class[1] === null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* si $class est un tableau de plus de 2 éléments, alors déplacer les éléments
|
||
|
|
* supplémentaires au début de $args. par exemple:
|
||
|
|
* ~~~
|
||
|
|
* $class = ["class", null, "arg1", "arg2"];
|
||
|
|
* $args = ["arg3"];
|
||
|
|
* func::fix_class_args($class, $args)
|
||
|
|
* # $class === "class"
|
||
|
|
* # $args === ["arg1", "arg2", "arg3"]
|
||
|
|
* ~~~
|
||
|
|
*
|
||
|
|
* @return bool true si la correction a été faite
|
||
|
|
*/
|
||
|
|
static final function fix_class_args(&$class, ?array &$args): bool {
|
||
|
|
if ($args === null) $args = [];
|
||
|
|
if (is_array($class)) {
|
||
|
|
if (count($class) > 2) {
|
||
|
|
$prefix_args = array_slice($class, 2);
|
||
|
|
$class = array_slice($class, 0, 1)[0];
|
||
|
|
$args = array_merge($prefix_args, $args);
|
||
|
|
} else {
|
||
|
|
$class = $class[0];
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* s'assurer que $class est une classe et renseigner le cas échéant les
|
||
|
|
* arguments.
|
||
|
|
*
|
||
|
|
* @return bool true si c'est une classe valide. il ne reste plus qu'à
|
||
|
|
* l'instancier avec {@link cons()}
|
||
|
|
*/
|
||
|
|
static final function check_class(&$class, &$args=null): bool {
|
||
|
|
if (self::is_class($class)) {
|
||
|
|
self::fix_class_args($class, $args);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Comme {@link check_class()} mais lance une exception si la classe est
|
||
|
|
* invalide
|
||
|
|
*
|
||
|
|
* @throws ValueException si $class n'est pas une classe valide
|
||
|
|
*/
|
||
|
|
static final function ensure_class(&$class, &$args=null): void {
|
||
|
|
if (!self::check_class($class, $args)) {
|
||
|
|
throw ValueException::invalid_type($class, "class");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instancier la classe avec les arguments spécifiés.
|
||
|
|
* Adapter $args en fonction du nombre réel d'arguments du constructeur
|
||
|
|
*/
|
||
|
|
static final function cons(string $class, ...$args) {
|
||
|
|
$c = new ReflectionClass($class);
|
||
|
|
$rf = $c->getConstructor();
|
||
|
|
if ($rf === null) {
|
||
|
|
return $c->newInstance();
|
||
|
|
} else {
|
||
|
|
if (!$rf->isVariadic()) {
|
||
|
|
$minArgs = $rf->getNumberOfRequiredParameters();
|
||
|
|
$maxArgs = $rf->getNumberOfParameters();
|
||
|
|
$args = array_slice($args, 0, $maxArgs);
|
||
|
|
while (count($args) < $minArgs) {
|
||
|
|
$args[] = null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $c->newInstanceArgs($args);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|