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Fix TypeOfOperation for setters of and-filters #2273

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Mar 23, 2018
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Fix TypeOfOperation for setters of and-filters #2273

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4 changes: 4 additions & 0 deletions lib/type.gi
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Original file line number Diff line number Diff line change
Expand Up @@ -194,7 +194,11 @@ function(oper)
type := "Representation";
fi;
fi;
elif IsOperation(FLAG1_FILTER(oper)) and IsOperation(FLAG1_FILTER(oper)) then
# this is a setter for an and-filter
type := "Setter";
elif FLAG1_FILTER(oper) > 0 then
# this is a setter for an elementary filter
type := "Setter";
elif Tester(oper) <> false then
# oper is an attribute
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20 changes: 17 additions & 3 deletions tst/testinstall/type.tst
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Original file line number Diff line number Diff line change
Expand Up @@ -54,22 +54,36 @@ true
gap> TypeOfOperation(IsFilter);
Error, <oper> must be an operation

#
# elementary filters: property
gap> TypeOfOperation(IsAbelian);
"Property"
gap> TypeOfOperation(HasIsAbelian);
"Filter"
gap> TypeOfOperation(SetIsAbelian);
"Setter"

# and-filters
gap> TypeOfOperation(IsPGroup and IsAbelian);
"Property"
gap> TypeOfOperation(HasIsPGroup and HasIsAbelian);
"Filter"
gap> TypeOfOperation(Tester(IsPGroup and IsAbelian));
"Filter"
gap> TypeOfOperation(Setter(IsPGroup and IsAbelian));
"Setter"

# kernel category
gap> TypeOfOperation(IsMutable);
"Category"
gap> TypeOfOperation(Setter(IsMutable));
"Setter"

# other
gap> TypeOfOperation(\+);
"Operation"
gap> TypeOfOperation(Size);
"Attribute"
gap> TypeOfOperation(AbelianGroupCons);
"Constructor"
gap> TypeOfOperation(Setter(IS_MUTABLE_OBJ));
"Setter"

#