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<?php |
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namespace JClaveau\Exceptions; |
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/** |
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*/ |
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class UsageException extends \Exception |
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{ |
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/** |
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* / |
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public function new_($message) |
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{ |
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return new static($message); |
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} |
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/** |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(...func_get_args()); |
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$this->rewindStackWhile( function($backtrace, $level) { |
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// Finds the closest caller |
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// TODO get the class of the caller instead of comparing |
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// with UsageException |
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return isset($backtrace[ $level ]['class']) |
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&& $backtrace[ $level ]['class'] == __CLASS__; |
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}, 0 ); |
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} |
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/** |
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*/ |
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public function setStackLocationHere() |
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{ |
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$this->rewindStackWhile( function($backtrace, $level) { |
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// Finds the closest caller |
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return $level < 2; |
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}, 4 ); |
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return $this; |
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} |
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/** |
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*/ |
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protected function rewindStackWhile(callable $scope_checker, $stack_max_depth=20) |
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{ |
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$backtrace = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS, $stack_max_depth); |
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$i = 1; |
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$caller = $backtrace[$i]; |
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while ( $scope_checker( $backtrace, $i ) ) { |
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$i++; |
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$caller = $backtrace[$i]; |
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// TODO remove the previous levels of the stack? |
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} |
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// var_export($backtrace); |
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// var_export($caller); |
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// TODO How to handle perfectly the missing fields of the backtrace? |
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if (isset($caller['file'])) |
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$this->file = $caller['file']; |
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if (isset($caller['line'])) |
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$this->line = $caller['line']; |
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// var_export($this->stack); |
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} |
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/**/ |
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} |
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