Provide actions for text-based streamers #580
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In most cases it should be same actions like for binary I/O, but several special cases will be implemented. Also in such list original (not-compressed) list of data members will be used. This will solve problem of unfolding such compressed members later
Main difference - it is not-optimized list, therefore there is no need to unfold compressed data members
When such classes stored, class streamer called directly. Such approach does not work with text storage, therefore special actions required.
When TObject instance was stored as is, wrong output was produced. Now UniqueID, fBits and process ID stored normally
Required for special handling of kStreamerLoop members. Special case when empty arrays should be stored - binary I/O completely ignores such containers, but text representaion need normal array structure arround nulls
isText boolean parameter let provide customization for text-based streaming. Potentially same action can be used for binary I/O
It should be handled as normal array.
Just reuse postprocessing code for TObject. Makes output more readable, but TRef need much more work to be supported with JSON and JSROOT
In original code direct class streamer is called, which is impossible to handle with TBufferJSON. Keep binary code as well in the action to have possibility use same code-base for binary use-case
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Improved variant of PR #578
Idea to create separate actions list, which will be used only for text-based streaming.
Most actions functions can be reused from normal I/O,
only several cases should be implemented slightly different.
On the long run one could create complimentary actions list for reading data with TBufferXML or TBufferSQL2 and fully isolate text-based and binary I/O
That is in PR:
PR solves several existing problem with JSON:
With provided code all my test classes working. I can provide patch for roottest.
P.S. Most probably, Travis-CI check will be unhappy about source-code formatting.