[jira] [Created] (ARROW-4319) plasma/store.h pulls ins flatbuffer dependency

["Matthias Vallentin (JIRA)" <ji...@apache.org>]

Matthias Vallentin created ARROW-4319:
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             Summary: plasma/store.h pulls ins flatbuffer dependency
                 Key: ARROW-4319
                 URL: https://issues.apache.org/jira/browse/ARROW-4319
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
    Affects Versions: 0.12.0
            Reporter: Matthias Vallentin


For our unit testing, we'd like to use the plasma store programmatically by including *plasma/store.h*. However, this header pulls in flatbuffers via *src/plasma/common_generated.h*. Is this a necessary include or would a forward declaration suffice?

Installing just flatbuffers didn't solve the problem, though. It looks like a specific version is needed:
{noformat}
 In file included from /Users/mavam/code/src/arrow/cpp/src/plasma/store.h:30:
 In file included from /Users/mavam/code/src/arrow/cpp/src/plasma/eviction_policy.h:27:
 In file included from /Users/mavam/code/src/arrow/cpp/src/plasma/plasma.h:41:
 /Users/mavam/code/src/arrow/cpp/src/plasma/common_generated.h:65:21: error: no matching member function for call to 'Verify'
 verifier.Verify(object_id()) &&
 ~~~~~~~~~^~~~~~
 /usr/local/include/flatbuffers/flatbuffers.h:1896:29: note: candidate template ignored: couldn't infer template argument 'T'
 template<typename T> bool Verify(size_t elem) const {
 ^
 /usr/local/include/flatbuffers/flatbuffers.h:1905:29: note: candidate function template not viable: requires 2 arguments, but 1 was provided
 template<typename T> bool Verify(const uint8_t *base, voffset_t elem_off)
 ^
 /usr/local/include/flatbuffers/flatbuffers.h:1880:8: note: candidate function not viable: requires 2 arguments, but 1 was provided
 bool Verify(size_t elem, size_t elem_len) const {
 ^
 /usr/local/include/flatbuffers/flatbuffers.h:1901:8: note: candidate function not viable: requires 3 arguments, but 1 was provided
 bool Verify(const uint8_t *base, voffset_t elem_off, size_t elem_len) const {
{noformat}




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