blob: 7672dcdc1be2cf9364ed7782f998485b4e02fcd8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
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;
}
|
