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<?php |
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namespace Fubhy\GraphQL\Language; |
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/** |
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* A representation of source input to GraphQL. |
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* |
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* The name is optional, but is mostly useful for clients who store GraphQL |
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* documents in source files; for example, if the GraphQL input is in a file |
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* Foo.graphql, it might be useful for name to be "Foo.graphql". |
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*/ |
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class Source |
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{ |
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/** |
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* @var string |
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*/ |
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protected $body; |
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/** |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* @var int |
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*/ |
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protected $length; |
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/** |
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* Constructor. |
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* |
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* @param string $body |
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* @param string $name |
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*/ |
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public function __construct($body, $name = 'GraphQL') |
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{ |
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$this->body = $body; |
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$this->name = $name; |
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$this->length = mb_strlen($body); |
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} |
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/** |
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* @return string |
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*/ |
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public function getBody() |
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{ |
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return $this->body; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* @return int |
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*/ |
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public function getLength() |
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{ |
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return $this->length; |
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} |
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/** |
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* Takes a Source and a UTF-8 character offset, and returns the |
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* corresponding line and column as a SourceLocation. |
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* |
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* @param $position |
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* |
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* @return \Fubhy\GraphQL\Language\SourceLocation |
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*/ |
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public function getLocation($position) |
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{ |
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$pattern = '/\r\n|[\n\r\u2028\u2029]/g'; |
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$subject = mb_substr($this->body, 0, $position, 'UTF-8'); |
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preg_match_all($pattern, $subject, $matches, PREG_OFFSET_CAPTURE); |
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$location = array_reduce($matches[0], function ($carry, $match) use ($position) { |
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return [ |
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$carry[0] + 1, |
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$position + 1 - ($match[1] + mb_strlen($match[0], 'UTF-8')) |
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]; |
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}, [1, $position + 1]); |
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return new SourceLocation($location[0], $location[1]); |
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} |
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} |
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fubhy /
graphql-php
