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LibPDF: Don't assert on outline destinations that use null as page

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Nothing in PDF 1.7 spec 8.2.1 Destinations mentions the page being
`null`, but it happens in 0000372.pdf (for the root outline element)
and in 0000776.pdf (for every outline element, which looks like a
bug in the generator maybe) of 0000.zip from the pdfa dataset.
This commit is contained in:
Nico Weber 2023-10-24 23:45:46 -07:00 • committed by Tim Flynn
parent 2e23f00a2f
commit 6d47fca3bf
1 changed files with 4 additions and 0 deletions
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4
Userland/Libraries/LibPDF/Document.cpp
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@ -418,6 +418,10 @@ PDFErrorOr<void> Document::build_outline()
PDFErrorOr<Destination> Document::create_destination_from_parameters(NonnullRefPtr<ArrayObject> array, HashMap<u32, u32> const& page_number_by_index_ref)
{
auto page_ref = array->at(0);
if (page_ref.has<nullptr_t>())
return Destination { Destination::Type::XYZ, {}, {} };
auto type_name = TRY(array->get_name_at(this, 1))->name();
Vector<Optional<float>> parameters;