Version 4.5.0

system/3rd_party/graphql-php/Language/Source.php

@@ -0,0 +1,89 @@
+<?php
+namespace GraphQL\Language;
+
+use GraphQL\Utils\Utils;
+
+/**
+ * Class Source
+ * @package GraphQL\Language
+ */
+class Source
+{
+    /**
+     * @var string
+     */
+    public $body;
+
+    /**
+     * @var int
+     */
+    public $length;
+
+    /**
+     * @var string
+     */
+    public $name;
+
+    /**
+     * @var SourceLocation
+     */
+    public $locationOffset;
+
+    /**
+     * Source constructor.
+     *
+     * A representation of source input to GraphQL.
+     * `name` and `locationOffset` are optional. They are useful for clients who
+     * store GraphQL documents in source files; for example, if the GraphQL input
+     * starts at line 40 in a file named Foo.graphql, it might be useful for name to
+     * be "Foo.graphql" and location to be `{ line: 40, column: 0 }`.
+     * line and column in locationOffset are 1-indexed
+     *
+     * @param $body
+     * @param null $name
+     * @param SourceLocation|null $location
+     */
+    public function __construct($body, $name = null, SourceLocation $location = null)
+    {
+        Utils::invariant(
+            is_string($body),
+            'GraphQL query body is expected to be string, but got ' . Utils::getVariableType($body)
+        );
+
+        $this->body = $body;
+        $this->length = mb_strlen($body, 'UTF-8');
+        $this->name = $name ?: 'GraphQL';
+        $this->locationOffset = $location ?: new SourceLocation(1, 1);
+
+        Utils::invariant(
+            $this->locationOffset->line > 0,
+            'line in locationOffset is 1-indexed and must be positive'
+        );
+        Utils::invariant(
+            $this->locationOffset->column > 0,
+            'column in locationOffset is 1-indexed and must be positive'
+        );
+    }
+
+    /**
+     * @param $position
+     * @return SourceLocation
+     */
+    public function getLocation($position)
+    {
+        $line = 1;
+        $column = $position + 1;
+
+        $utfChars = json_decode('"\u2028\u2029"');
+        $lineRegexp = '/\r\n|[\n\r'.$utfChars.']/su';
+        $matches = [];
+        preg_match_all($lineRegexp, mb_substr($this->body, 0, $position, 'UTF-8'), $matches, PREG_OFFSET_CAPTURE);
+
+        foreach ($matches[0] as $index => $match) {
+            $line += 1;
+            $column = $position + 1 - ($match[1] + mb_strlen($match[0], 'UTF-8'));
+        }
+
+        return new SourceLocation($line, $column);
+    }
+}