[Swift-devel] [Bug 160] New: some mappers fail for complex data

[bugzilla-daemon at mcs.anl.gov]

http://bugzilla.mcs.anl.gov/swift/show_bug.cgi?id=160

           Summary: some mappers fail for complex data
           Product: Swift
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: SwiftScript language
        AssignedTo: benc at hawaga.org.uk
        ReportedBy: hategan at mcs.anl.gov


when using structures with arrays of arrays, both the filesys and ext mappers
cause consistency check failures.

Here's a test case:
-------------------
type file{}

type FVec {
  file columns[];
}

type FMat {
  FVec rows[];
}

app (file r) dummy() {
  echo "x" stdout=@r;
}

FMat m <filesys_mapper;prefix="bla">;

m.rows[0].columns[0] = dummy();
-------------------

This should at least complete successfully. Instead, I see the following error:
Execution failed:
        Mapper failed to map org.griphyn.vdl.mapping.DataNode identifier
tag:benc at ci.uchicago.edu,2008:swift:dataset:20081208-1441-2nuvzaa8:720000000008
with no value at dataset=m path=.rows[0].columns[0] (not closed)


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