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error messages: add causation for conflicting variants error

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This commit is contained in:
Gregory Becker 2022-12-13 13:27:25 -08:00
parent f4402c1cde
commit adfc1c0896
2 changed files with 13 additions and 0 deletions
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12
lib/spack/spack/solver/concretize.lp
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@ -613,6 +613,18 @@ attr("variant_value", Package, Variant, Value) :-
variant(Package, Variant), variant(Package, Variant),
build(Package). build(Package).
error(0, "'{0}' required multiple values for single-valued variant '{1}'\n Requested 'Spec({1}={2})' and 'Spec({1}={3})'", Package, Variant, Value1, Value2, startcauses, Cause1, Cause2)
:- attr("node", Package),
variant(Package, Variant),
variant_single_value(Package, Variant),
build(Package),
attr("variant_value", Package, Variant, Value1),
imposed_constraint(Cause1, "variant_set", Package, Variant, Value1),
condition_holds(Cause1),
attr("variant_value", Package, Variant, Value2),
imposed_constraint(Cause2, "variant_set", Package, Variant, Value2),
condition_holds(Cause2),
Value1 < Value2. % see[1]
error(100, "'{0}' required multiple values for single-valued variant '{1}'", Package, Variant) error(100, "'{0}' required multiple values for single-valued variant '{1}'", Package, Variant)
:- attr("node", Package), :- attr("node", Package),

1
lib/spack/spack/solver/display.lp
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@ -25,6 +25,7 @@
#show error/6. #show error/6.
#show error/7. #show error/7.
#show error/8. #show error/8.
#show error/9.
% show cause -> effect data for errors % show cause -> effect data for errors
#show condition_cause/2. #show condition_cause/2.