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  1. OMG Issue

QVT13 — QVTo: xcollect is ambiguously flattened

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  • Key: QVT13-34
  • Legacy Issue Number: 19177
  • Status: closed  
  • Source: Model Driven Solutions ( Dr. Edward Willink)
  • Summary:

    xcolect is specified to like collect, which flattens, however the xcollect pseudocode does not flatten.

  • Reported: QVT 1.1 — Thu, 9 Jan 2014 05:00 GMT
  • Disposition: Resolved — QVT 1.3
  • Disposition Summary:

    xcollect is ambiguously flattened

    xcollect is specified to like collect, which flattens, however the xcollect pseudocode does not flatten.

    Discussion

    Ditto xcollectselect, xcollectselectOne

    Once an attempt is made to put the pseudo-code through Eclipse QVTo, it is quite amazing how many different errors there are.

    • spurious source/iterator arguments
    • missing compute open {
    • increarect non-collection returns
    • incorrect accommodation of ordered collections
    • no flattening
    • no single values
    • use of mutable Sequence rather than List
  • Updated: Tue, 29 Mar 2016 15:09 GMT