Update process for ABI testing

1 files changed, 152 insertions, 0 deletions

diff --git a/qpdf/sizes.cc b/qpdf/sizes.cc
new file mode 100644
index 00000000..bf7f5e9c
--- /dev/null
+++ b/qpdf/sizes.cc
@@ -0,0 +1,152 @@
+// See "ABI checks" in README-maintainer and comments in check_abi.
+
+#include <iostream>
+
+#include <qpdf/Buffer.hh>
+#include <qpdf/BufferInputSource.hh>
+#include <qpdf/ClosedFileInputSource.hh>
+#include <qpdf/FileInputSource.hh>
+#include <qpdf/InputSource.hh>
+#include <qpdf/JSON.hh>
+#include <qpdf/PDFVersion.hh>
+#include <qpdf/Pipeline.hh>
+#include <qpdf/Pl_Buffer.hh>
+#include <qpdf/Pl_Concatenate.hh>
+#include <qpdf/Pl_Count.hh>
+#include <qpdf/Pl_DCT.hh>
+#include <qpdf/Pl_Discard.hh>
+#include <qpdf/Pl_Flate.hh>
+#include <qpdf/Pl_QPDFTokenizer.hh>
+#include <qpdf/Pl_RunLength.hh>
+#include <qpdf/Pl_StdioFile.hh>
+#include <qpdf/QPDF.hh>
+#include <qpdf/QPDFAcroFormDocumentHelper.hh>
+#include <qpdf/QPDFAnnotationObjectHelper.hh>
+#include <qpdf/QPDFCryptoProvider.hh>
+#include <qpdf/QPDFEFStreamObjectHelper.hh>
+#include <qpdf/QPDFEmbeddedFileDocumentHelper.hh>
+#include <qpdf/QPDFExc.hh>
+#include <qpdf/QPDFFileSpecObjectHelper.hh>
+#include <qpdf/QPDFFormFieldObjectHelper.hh>
+#include <qpdf/QPDFJob.hh>
+#include <qpdf/QPDFMatrix.hh>
+#include <qpdf/QPDFNameTreeObjectHelper.hh>
+#include <qpdf/QPDFNumberTreeObjectHelper.hh>
+#include <qpdf/QPDFObjGen.hh>
+#include <qpdf/QPDFObject.hh>
+#include <qpdf/QPDFObjectHandle.hh>
+#include <qpdf/QPDFOutlineDocumentHelper.hh>
+#include <qpdf/QPDFOutlineObjectHelper.hh>
+#include <qpdf/QPDFPageDocumentHelper.hh>
+#include <qpdf/QPDFPageLabelDocumentHelper.hh>
+#include <qpdf/QPDFPageObjectHelper.hh>
+#include <qpdf/QPDFStreamFilter.hh>
+#include <qpdf/QPDFSystemError.hh>
+#include <qpdf/QPDFTokenizer.hh>
+#include <qpdf/QPDFUsage.hh>
+#include <qpdf/QPDFWriter.hh>
+#include <qpdf/QPDFXRefEntry.hh>
+
+#define ignore_class(cls)
+#define print_size(cls) \
+    std::cout << #cls << " " << sizeof(cls) << std::endl
+
+// These classes are not really public.
+// ------
+ignore_class(BitStream);
+ignore_class(BitWriter);
+ignore_class(CryptoRandomDataProvider);
+ignore_class(InsecureRandomDataProvider);
+ignore_class(JSONHandler);
+ignore_class(MD5);
+ignore_class(Pl_AES_PDF);
+ignore_class(Pl_ASCII85Decoder);
+ignore_class(Pl_ASCIIHexDecoder);
+ignore_class(Pl_LZWDecoder);
+ignore_class(Pl_MD5);
+ignore_class(Pl_PNGFilter);
+ignore_class(Pl_RC4);
+ignore_class(Pl_SHA2);
+ignore_class(Pl_TIFFPredictor);
+ignore_class(QPDFArgParser);
+ignore_class(RC4);
+ignore_class(SecureRandomDataProvider);
+ignore_class(SparseOHArray);
+
+// This is public because of QPDF_DLL_CLASS on InputSource
+// -------
+ignore_class(InputSource::Members);
+
+// These are not classes
+// -------
+ignore_class(QUtil);
+ignore_class(QTC);
+
+int main()
+{
+    // Print the size of every class in the public API. This file is
+    // read by the check_abi script at the top of the repository as
+    // part of the binary compatibility checks performed before each
+    // release.
+    print_size(Buffer);
+    print_size(BufferInputSource);
+    print_size(ClosedFileInputSource);
+    print_size(FileInputSource);
+    print_size(InputSource);
+    print_size(JSON);
+    print_size(PDFVersion);
+    print_size(Pipeline);
+    print_size(Pl_Buffer);
+    print_size(Pl_Concatenate);
+    print_size(Pl_Count);
+    print_size(Pl_DCT);
+    print_size(Pl_Discard);
+    print_size(Pl_Flate);
+    print_size(Pl_QPDFTokenizer);
+    print_size(Pl_RunLength);
+    print_size(Pl_StdioFile);
+    print_size(QPDF);
+    print_size(QPDFAcroFormDocumentHelper);
+    print_size(QPDFAnnotationObjectHelper);
+    print_size(QPDFCryptoProvider);
+    print_size(QPDFEFStreamObjectHelper);
+    print_size(QPDFEmbeddedFileDocumentHelper);
+    print_size(QPDFExc);
+    print_size(QPDFFileSpecObjectHelper);
+    print_size(QPDFFormFieldObjectHelper);
+    print_size(QPDFJob);
+    print_size(QPDFJob::AttConfig);
+    print_size(QPDFJob::Config);
+    print_size(QPDFJob::CopyAttConfig);
+    print_size(QPDFJob::EncConfig);
+    print_size(QPDFJob::PagesConfig);
+    print_size(QPDFJob::UOConfig);
+    print_size(QPDFMatrix);
+    print_size(QPDFNameTreeObjectHelper);
+    print_size(QPDFNameTreeObjectHelper::iterator);
+    print_size(QPDFNumberTreeObjectHelper);
+    print_size(QPDFNumberTreeObjectHelper::iterator);
+    print_size(QPDFObjGen);
+    print_size(QPDFObject);
+    print_size(QPDFObjectHandle);
+    print_size(QPDFObjectHandle::ParserCallbacks);
+    print_size(QPDFObjectHandle::QPDFArrayItems);
+    print_size(QPDFObjectHandle::QPDFArrayItems::iterator);
+    print_size(QPDFObjectHandle::QPDFDictItems);
+    print_size(QPDFObjectHandle::QPDFDictItems::iterator);
+    print_size(QPDFObjectHandle::StreamDataProvider);
+    print_size(QPDFObjectHandle::TokenFilter);
+    print_size(QPDFOutlineDocumentHelper);
+    print_size(QPDFOutlineObjectHelper);
+    print_size(QPDFPageDocumentHelper);
+    print_size(QPDFPageLabelDocumentHelper);
+    print_size(QPDFPageObjectHelper);
+    print_size(QPDFStreamFilter);
+    print_size(QPDFSystemError);
+    print_size(QPDFTokenizer);
+    print_size(QPDFTokenizer::Token);
+    print_size(QPDFUsage);
+    print_size(QPDFWriter);
+    print_size(QPDFXRefEntry);
+    return 0;
+}