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authorEelco Dolstra <e.dolstra@tudelft.nl>2004-09-12T19·08+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2004-09-12T19·08+0000
commitb357284a323b86b96828e38dcb2d86b67f172de5 (patch)
treed938e80ed7e6ed292935a9a5a8578f055b4d2455 /corepkgs/buildenv
parentdcc433de47d4bf4a27fe63bc8996e946164ae885 (diff)
* Fallback didn't work for subderivations of an unnormalised the main
  derivation, since NormalisationGoal would first run a
  NormalisationGoal on the subderivation (a no-op, since in a
  situation where we need fallback the successor is known), and then
  runs a RealisationGoal on the normal form, which then cannot do a
  fallback because it doesn't know the derivation expression for which
  it is a normal form.

  Tossed out the 2-phase normalisation/realisation in
  NormalisationGoal and SubstitutionGoal since it's no longer needed -
  a RealisationGoal will run a NormalisationGoal if necessary.

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