90 lines
2.5 KiB
PHP
90 lines
2.5 KiB
PHP
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<?php
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namespace nur\sery;
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use RuntimeException;
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use Throwable;
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/**
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* Class UserException: une exception qui peut en plus contenir un message
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* utilisateur
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*/
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class UserException extends RuntimeException {
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/** @param Throwable|ExceptionShadow $e */
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static function get_user_message($e): ?string {
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if ($e instanceof self) return $e->getUserMessage();
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else return null;
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}
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/** @param Throwable|ExceptionShadow $e */
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static final function get_user_summary($e): string {
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$parts = [];
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$first = true;
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while ($e !== null) {
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$message = self::get_user_message($e);
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if (!$message) $message = "(no message)";
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if ($first) $first = false;
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else $parts[] = "caused by ";
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$parts[] = get_class($e) . ": " . $message;
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$e = $e->getPrevious();
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}
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return implode(", ", $parts);
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}
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/** @param Throwable|ExceptionShadow $e */
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static function get_message($e): ?string {
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$message = $e->getMessage();
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if (!$message && $e instanceof self) $message = $e->getUserMessage();
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return $message;
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}
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/** @param Throwable|ExceptionShadow $e */
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static final function get_summary($e): string {
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$parts = [];
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$first = true;
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while ($e !== null) {
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$message = self::get_message($e);
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if (!$message) $message = "(no message)";
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if ($first) $first = false;
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else $parts[] = "caused by ";
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if ($e instanceof ExceptionShadow) $class = $e->getClass();
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else $class = get_class($e);
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$parts[] = "$class: $message";
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$e = $e->getPrevious();
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}
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return implode(", ", $parts);
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}
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/** @param Throwable|ExceptionShadow $e */
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static final function get_traceback($e): string {
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$tbs = [];
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$previous = false;
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while ($e !== null) {
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if (!$previous) {
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$efile = $e->getFile();
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$eline = $e->getLine();
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$tbs[] = "at $efile($eline)";
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} else {
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$tbs[] = "~~ caused by: " . self::get_summary($e);
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}
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$tbs[] = $e->getTraceAsString();
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$e = $e->getPrevious();
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$previous = true;
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#XXX il faudrait ne pas réinclure les lignes communes aux exceptions qui
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# ont déjà été affichées
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}
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return implode("\n", $tbs);
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}
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function __construct($user_message, $tech_message=null, $code=0, ?Throwable $previous=null) {
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$this->userMessage = $user_message;
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if ($tech_message === null) $tech_message = $user_message;
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parent::__construct($tech_message, $code, $previous);
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}
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protected $userMessage;
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function getUserMessage(): ?string {
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return $this->userMessage;
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}
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}
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