@@ -107,6 +107,9 @@ discard block |
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107 | 107 | return [$target, $direction]; |
108 | 108 | } |
109 | 109 | |
110 | + /** |
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111 | + * @return null|Node |
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112 | + */ |
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110 | 113 | private function getPrevious(Node $node = null): ?Node |
111 | 114 | { |
112 | 115 | $previous = $node instanceof Node ? $node->previous() : null; |
@@ -118,6 +121,9 @@ discard block |
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118 | 121 | return $previous; |
119 | 122 | } |
120 | 123 | |
124 | + /** |
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125 | + * @return null|Node |
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126 | + */ |
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121 | 127 | private function getNext(Node $node = null): ?Node |
122 | 128 | { |
123 | 129 | $next = $node instanceof Node ? $node->next() : null; |