1 files changed, 78 insertions, 0 deletions
diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php
new file mode 100644
index 0000000..7672dcd
--- /dev/null
+++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php
@@ -0,0 +1,78 @@
+<?php
+
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi\PdfParser\Type;
+
+use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException;
+use setasign\Fpdi\PdfParser\PdfParser;
+use setasign\Fpdi\PdfParser\PdfParserException;
+
+/**
+ * A class defining a PDF data type
+ */
+class PdfType
+{
+    /**
+     * Resolves a PdfType value to its value.
+     *
+     * This method is used to evaluate indirect and direct object references until a final value is reached.
+     *
+     * @param PdfType $value
+     * @param PdfParser $parser
+     * @param bool $stopAtIndirectObject
+     * @return PdfType
+     * @throws CrossReferenceException
+     * @throws PdfParserException
+     */
+    public static function resolve(PdfType $value, PdfParser $parser, $stopAtIndirectObject = false)
+    {
+        if ($value instanceof PdfIndirectObject) {
+            if ($stopAtIndirectObject === true) {
+                return $value;
+            }
+
+            return self::resolve($value->value, $parser, $stopAtIndirectObject);
+        }
+
+        if ($value instanceof PdfIndirectObjectReference) {
+            return self::resolve($parser->getIndirectObject($value->value), $parser, $stopAtIndirectObject);
+        }
+
+        return $value;
+    }
+
+    /**
+     * Ensure that a value is an instance of a specific PDF type.
+     *
+     * @param string $type
+     * @param PdfType $value
+     * @param string $errorMessage
+     * @return mixed
+     * @throws PdfTypeException
+     */
+    protected static function ensureType($type, $value, $errorMessage)
+    {
+        if (!($value instanceof $type)) {
+            throw new PdfTypeException(
+                $errorMessage,
+                PdfTypeException::INVALID_DATA_TYPE
+            );
+        }
+
+        return $value;
+    }
+
+    /**
+     * The value of the PDF type.
+     *
+     * @var mixed
+     */
+    public $value;
+}