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This is while waiting for a deeper uniformization of auto, eauto, and
typeclasses eauto.
Incidentally includes a little fix in harmonizing auto/eauto printing.
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Was PR#192: Add test suite files for 4700-4785
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I didn't add any test-cases for timing-based bugs (4707, 4768, 4776,
4777, 4779, 4783), nor CoqIDE bugs (4700, 4751, 4752, 4756), nor
bugs about printing (4709, 4711, 4720, 4723, 4734, 4736, 4738, 4741,
4743, 4748, 4749, 4750, 4757, 4758, 4765, 4784). I'm not sure what to
do with 4712, 4714, 4732, 4740.
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We stop failing automatically on non-declared-class nested or toplevel
subgoals as in 8.5, instead of the previous a477dc behavior of shelving
those goals and failing if shelved goals remained at the end of
resolution. It means typeclass resolution during refinement is closer to
all:typeclasses eauto. Hints in typeclass_instances for non-declared
classes can be used during resolution of _nested_ subgoals when it is
fired from type-inference, toplevel goals considered in this case are
still only classes (as in 8.5 and before). The code that triggers the
restriction to only declared class subgoals is commented.
Revert changes to test-suite, adding test for #5203, #5198 is fixed too.
Add corresponding tests in the test-suite (that will break if we,
e.g. disallow non-class subgoals) and update the refman accordingly.
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In only_classes mode we do not try to implement a stricter semantics for
shelved goals in 8.6. Leaving this for 8.7.
Update the documentation as well.
Remove a spurious printf call as well.
Fix test-suite now that shelved goals are allowed
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Was PR#339: Documenting type class options, typeclasses eauto
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Was PR#331: Solve_constraints and Set Use Unification Heuristics
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... in pose proof of large proof terms
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- One was expecting shelved goals to remain after resolution (from refine).
- The other too were relying on the wrong classification of subgoals
as typeclass subgoals at toplevel.
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Now [typeclasses eauto] mimicks what happens during resolution
faithfully, and the shelving behavior/requirements for a successful
proof-search are documented.
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In addition to a priority, cleanup the interfaces for passing this
information as well. The pattern, if given, takes priority over the
inferred one.
We only allow Existing Instances gr ... gr | pri. for now, without
pattern, as before.
Make the API compatible to 8.5 as well.
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Was PR#321: Handling of section variables in hints
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Was PR#319: More error tagging, try to fix bug 5135
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Was PR#337: Fix arguments
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Type annotations in unrelated binders were badly interfering with
detection of recursive binders in notations.
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The main point of this change is to fix #3035: Avoiding trailing
arguments in the Arguments command, and related issues occurring in
HoTT for instance. When the "assert" flag is not specified, we now
accept prefixes of the list of arguments.
The semantics of _ w.r.t. to renaming has changed. Previously, it meant
"restore the original name inferred from the type". Now it means "don't
change the current name".
The syntax of arguments is now restricted. Modifiers like /, ! and
scopes are allowed only in the first arguments list.
We also add *a lot* of missing checks on input values and fix various
bugs.
Note that this code is still way too complex for what it does, due to
the complexity of the implicit arguments, reduction behaviors and renaming
APIs.
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Was PR#329: Fix #5127 Memory corruption with the VM
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+ a few improvements on 5f1dd4c40 (lexing of { and }).
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New fix. A bit less consistent with the spirit of this Makefile as we
list prerequisite files explicitly, but avoid to redo subsystems at
each call to "make" as with previous fix.
Other solutions from experts are welcome.
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Refine fix for bug #4763, fixing #5149
Tactic [Refine.solve_constraints] and global option
Adds a new multi-goal tactic [Refine.solve_constraints] that forces solving of
unification constraints and evar candidates to be solved. run_tactic now calls
[solve_constraints] at every [.], preserving (mostly) the 8.4/8.5 behavior of tactics.
The option allows to unset the forced solving unification constraints at
each ".", letting the user control the places where the use of
heuristics is done.
Fix test-suite files too.
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Adds a compatibility flag so that the behavior of 8.5 can be obtained too.
Original commit:
unification.ml: fix for bug #4763, unif regression
Do not force all remaining conversions problems to be solved after
the _first_ solution of an evar. This was hell to track down, thanks
for the help of Maxime. contribs pass and HoTT too.
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This reverts commit 0b417c12eb10bb29bcee04384b6c0855cb9de73a.
A good fix requires to review a bit the design of unification constraint
postponement, which we do in 8.6. We leave things as they are in 8.5 for
compatibility.
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due to cleared/reverted section variables.
This fixes the get_type_of but requires keeping information
around about the section hyps available in goals during resolution.
It's optimized for the non-section case (should incur no cost there),
and the case where no section variables are cleared.
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This makes [refine] typecheck the term only once (instead of twice),
(Qed excluded of course). Fix test-suite file for output of constraints
accordingly.
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If an existing evar was cleared in pretyping (typically while
processing "ltac:"), it created an evar considered as new. Updating
them instead along the "cleared" flag.
If correct, I suspect similar treatment should be done for refining
along "change", "rename" and "move".
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