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don't cache invalid offsets unless brute forced

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don't cache objects parsed if their offset doesn't match the cross-reference offset, unless the object was parsed by a brute-force search operation. this is because 1 object may lie in 2 streams, 1 valid and 1 invalid. If the invalid stream is parsed first for another object then the valid stream will never be read.
This commit is contained in:
Eliot Jones
2020-01-07 14:54:12 +00:00
parent 903d71a93d
commit 10dc5a8eed
3 changed files with 9 additions and 11 deletions
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2
src/UglyToad.PdfPig/Tokenization/Scanner/PdfTokenScanner.cs
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@@ -671,7 +671,7 @@
while (MoveNext())
{
objectLocationProvider.Cache((ObjectToken)CurrentToken);
objectLocationProvider.Cache((ObjectToken)CurrentToken, true);
}
if (!objectLocationProvider.TryGetCached(reference, out objectToken))