Lambda/Layer/crypto/python/lib/python3.8/site-packages/cffi/vengine_cpy.py [472:499]:
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        self._loaded_struct_or_union(tp)

    def _generate_struct_or_union_decl(self, tp, prefix, name):
        if tp.fldnames is None:
            return     # nothing to do with opaque structs
        checkfuncname = '_cffi_check_%s_%s' % (prefix, name)
        layoutfuncname = '_cffi_layout_%s_%s' % (prefix, name)
        cname = ('%s %s' % (prefix, name)).strip()
        #
        prnt = self._prnt
        prnt('static void %s(%s *p)' % (checkfuncname, cname))
        prnt('{')
        prnt('  /* only to generate compile-time warnings or errors */')
        prnt('  (void)p;')
        for fname, ftype, fbitsize, fqual in tp.enumfields():
            if (isinstance(ftype, model.PrimitiveType)
                and ftype.is_integer_type()) or fbitsize >= 0:
                # accept all integers, but complain on float or double
                prnt('  (void)((p->%s) << 1);' % fname)
            else:
                # only accept exactly the type declared.
                try:
                    prnt('  { %s = &p->%s; (void)tmp; }' % (
                        ftype.get_c_name('*tmp', 'field %r'%fname, quals=fqual),
                        fname))
                except VerificationError as e:
                    prnt('  /* %s */' % str(e))   # cannot verify it, ignore
        prnt('}')
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Lambda/Layer/crypto/python/lib/python3.8/site-packages/cffi/vengine_gen.py [260:287]:
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        self._loaded_struct_or_union(tp)

    def _generate_struct_or_union_decl(self, tp, prefix, name):
        if tp.fldnames is None:
            return     # nothing to do with opaque structs
        checkfuncname = '_cffi_check_%s_%s' % (prefix, name)
        layoutfuncname = '_cffi_layout_%s_%s' % (prefix, name)
        cname = ('%s %s' % (prefix, name)).strip()
        #
        prnt = self._prnt
        prnt('static void %s(%s *p)' % (checkfuncname, cname))
        prnt('{')
        prnt('  /* only to generate compile-time warnings or errors */')
        prnt('  (void)p;')
        for fname, ftype, fbitsize, fqual in tp.enumfields():
            if (isinstance(ftype, model.PrimitiveType)
                and ftype.is_integer_type()) or fbitsize >= 0:
                # accept all integers, but complain on float or double
                prnt('  (void)((p->%s) << 1);' % fname)
            else:
                # only accept exactly the type declared.
                try:
                    prnt('  { %s = &p->%s; (void)tmp; }' % (
                        ftype.get_c_name('*tmp', 'field %r'%fname, quals=fqual),
                        fname))
                except VerificationError as e:
                    prnt('  /* %s */' % str(e))   # cannot verify it, ignore
        prnt('}')
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