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<?php namespace Tarsana\Command\Console; |
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use Tarsana\Syntax\ArraySyntax; |
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use Tarsana\Syntax\Exceptions\ParseException; |
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use Tarsana\Syntax\ObjectSyntax; |
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use Tarsana\Syntax\Syntax; |
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/** |
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* Transforms an exception to a string to be shown on the console. |
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*/ |
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class ExceptionPrinter { |
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/** |
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* Converts the given exception to a string. |
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* |
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* @param \Exception $e |
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* @return string |
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*/ |
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public function print(\Exception $e) : string |
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{ |
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if ($e instanceof ParseException) |
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return $this->printParseException($e); |
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return "<error>{$e}</error>"; |
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} |
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/** |
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* Converts a parse exception to a string. |
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* |
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* @param Tarsana\Syntax\Exceptions\ParseException $e |
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* @return string |
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*/ |
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public function printParseException(ParseException $e) : string |
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{ |
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$syntax = $e->syntax(); |
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$error = ''; |
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if ($syntax instanceof ObjectSyntax) { |
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$i = $e->extra(); |
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if ($i['type'] == 'invalid-field') |
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$error = "{$i['field']} is invalid!"; |
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if ($i['type'] == 'missing-field') |
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$error = "{$i['field']} is missing!"; |
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if ($i['type'] == 'additional-items') { |
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$items = implode(', ', $i['items']); |
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$error = "additional items {$items}"; |
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} |
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} |
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$syntax = $this->printSyntax($e->syntax()); |
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$output = "<reset>Failed to parse <warn>'{$e->input()}'</warn> as <info>{$syntax}</info>"; |
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if ('' != $error) |
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$output .= " <error>{$error}</error>"; |
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$previous = $e->previous(); |
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if ($previous) { |
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$output .= '<br>' . $this->printParseException($previous); |
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} |
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return $output; |
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} |
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protected function printSyntax(Syntax $s, bool $short = false) : string |
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{ |
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if ($s instanceof ObjectSyntax) { |
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if ($short) return 'object'; |
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return implode($s->separator(), array_keys($s->fields())); |
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} |
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if ($s instanceof ArraySyntax) { |
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if ($short) return 'array'; |
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return $this->printSyntax($s->syntax()).$s->separator().'...'; |
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} |
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return (string) $s; |
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} |
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} |
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tarsana /
command
