pdfviewer: more prerequired work to have examples working for transparency work items.

experimental/PdfViewer/generate_code.py

 
 
 import os
 import sys
 
 import datatypes
 from pdfspec_autogen import *
 
 # TODO(edisonn): date and some other types are in fact strings, with a custom format!!!
 # TODO(edisonn): refer to page 99 (PDF data types)
@@ skipping 464 matching lines @@
     
     fileMapperNative.write('  SkPdfMapper(SkNativeParsedPDF* doc) : fParsedDoc(doc) {}\n')
     fileMapperNative.write('\n')
     
     for name in self.fClassesNamesInOrder:
       cls = self.fClasses[name]
       
       fileMapperNative.write('  SkPdfObjectType map' + name + '(const SkPdfObject* in) const;\n')
 
       fileMapperNativeCpp.write('SkPdfObjectType SkPdfMapper::map' + name + '(const SkPdfObject* in) const {\n')
-      fileMapperNativeCpp.write('  if (!is' + name + '(in)) return kNone_SkPdfObjectType;\n')
+      fileMapperNativeCpp.write('  if (in == NULL || !is' + name + '(in)) return kNone_SkPdfObjectType;\n')
       fileMapperNativeCpp.write('\n')
       if len(cls.fEnumSubclasses) > 0:
         fileMapperNativeCpp.write('  SkPdfObjectType ret;\n')
 
       # stream must be last one
       hasStream = False
       for sub in cls.fEnumSubclasses:
         fileMapperNativeCpp.write('  if (kNone_SkPdfObjectType != (ret = map' + enumToCls[sub].fName + '(in))) return ret;\n')
       
       fileMapperNativeCpp.write('\n')
@@ skipping 126 matching lines @@
   
   fileHeadersNative.write('#endif  // __DEFINED__SkPdfHeaders\n')
 
   fileHeadersNative.close()
   fileHeadersNativeCpp.close()
 
 if '__main__' == __name__:
   #print sys.argv
   sys.exit(generateCode())