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incidental refactoring: simplify some predicates by templating their call operators

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This commit is contained in:
Mathew Sutcliffe
2014-07-03 18:27:39 +01:00
parent 8d20c5e061
commit e23e418797
6 changed files with 37 additions and 37 deletions
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2
samples/blackmisc/sampleschangeobject.cpp
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@@ -59,7 +59,7 @@ namespace BlackMiscTest
CIndexVariantMap newController;
newController.addValue(CAtcStation::IndexController, QVariant::fromValue(CUser("112233", "Jane Doe")));
atcList.applyIf(
BlackMisc::Predicates::MemberEqual<CAtcStation>(&CAtcStation::getCallsign, CCallsign("eddm_twr")),
BlackMisc::Predicates::MemberEqual(&CAtcStation::getCallsign, CCallsign("eddm_twr")),
newController);
qDebug() << "-- after update via predicates";
qDebug() << atcList.toQString();

8
src/blackcore/airspace_monitor.cpp
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@@ -353,7 +353,7 @@ namespace BlackCore
values.addValue(CAtcStation::IndexFrequency, frequency);
values.addValue(CAtcStation::IndexPosition, position);
values.addValue(CAtcStation::IndexRange, range);
this->m_atcStationsOnline.applyIf(BlackMisc::Predicates::MemberEqual<CAtcStation>(&CAtcStation::getCallsign, callsign), values);
this->m_atcStationsOnline.applyIf(BlackMisc::Predicates::MemberEqual(&CAtcStation::getCallsign, callsign), values);
emit this->changedAtcStationsOnline();
}
}
@@ -434,7 +434,7 @@ namespace BlackCore
if (!icaoDataDataFile.hasAircraftDesignator()) return; // give up!
vm = CIndexVariantMap(CAircraft::IndexIcao, icaoData.toQVariant());
}
this->m_aircraftsInRange.applyIf(BlackMisc::Predicates::MemberEqual<CAircraft>(&CAircraft::getCallsign, callsign), vm);
this->m_aircraftsInRange.applyIf(BlackMisc::Predicates::MemberEqual(&CAircraft::getCallsign, callsign), vm);
emit this->changedAircraftsInRange();
}
@@ -480,7 +480,7 @@ namespace BlackCore
vm.addValue(CAircraft::IndexTransponder, transponder);
vm.addValue(CAircraft::IndexSituation, situation);
vm.addValue(CAircraft::IndexDistance, distance);
this->m_aircraftsInRange.applyIf(BlackMisc::Predicates::MemberEqual<CAircraft>(&CAircraft::getCallsign, callsign), vm);
this->m_aircraftsInRange.applyIf(BlackMisc::Predicates::MemberEqual(&CAircraft::getCallsign, callsign), vm);
}
emit this->changedAircraftsInRange();
@@ -497,7 +497,7 @@ namespace BlackCore
{
// update
CIndexVariantMap vm(CAircraft::IndexFrequencyCom1, frequency.toQVariant());
this->m_aircraftsInRange.applyIf(BlackMisc::Predicates::MemberEqual<CAircraft>(&CAircraft::getCallsign, callsign), vm);
this->m_aircraftsInRange.applyIf(BlackMisc::Predicates::MemberEqual(&CAircraft::getCallsign, callsign), vm);
emit this->changedAircraftsInRange();
}

6
src/blackmisc/containerbase.h
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@@ -80,7 +80,7 @@ namespace BlackMisc
template <class K0, class V0, class... KeysValues>
C<T> findBy(K0 k0, V0 v0, KeysValues... keysValues) const
{
return findBy(BlackMisc::Predicates::MemberEqual<T>(k0, v0, keysValues...));
return findBy(BlackMisc::Predicates::MemberEqual(k0, v0, keysValues...));
}
/*!
@@ -117,7 +117,7 @@ namespace BlackMisc
template <class K0, class V0, class... KeysValues>
bool contains(K0 k0, V0 v0, KeysValues... keysValues) const
{
return contains(BlackMisc::Predicates::MemberEqual<T>(k0, v0, keysValues...));
return contains(BlackMisc::Predicates::MemberEqual(k0, v0, keysValues...));
}
/*!
@@ -143,7 +143,7 @@ namespace BlackMisc
template <class K0, class V0, class... KeysValues>
void removeIf(K0 k0, V0 v0, KeysValues... keysValues)
{
removeIf(BlackMisc::Predicates::MemberEqual<T>(k0, v0, keysValues...));
removeIf(BlackMisc::Predicates::MemberEqual(k0, v0, keysValues...));
}
public:

12
src/blackmisc/dictionary.h
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@@ -151,7 +151,7 @@ namespace BlackMisc
template <class... Pairs >
CDictionary findKeyBy(Pairs... pairs) const
{
return findKeyBy(BlackMisc::Predicates::MemberEqual<Key>(pairs...));
return findKeyBy(BlackMisc::Predicates::MemberEqual(pairs...));
}
/*!
@@ -176,7 +176,7 @@ namespace BlackMisc
template <class... Pairs >
CDictionary findValueBy(Pairs... pairs) const
{
return findValueBy(BlackMisc::Predicates::MemberEqual<Value>(pairs...));
return findValueBy(BlackMisc::Predicates::MemberEqual(pairs...));
}
/*!
@@ -193,7 +193,7 @@ namespace BlackMisc
template <class MembFunc, class ReturnValue>
bool containsByKey(MembFunc membFunc, ReturnValue returnValue) const
{
return containsByKey(BlackMisc::Predicates::MemberEqual<Key>(membFunc, returnValue));
return containsByKey(BlackMisc::Predicates::MemberEqual(membFunc, returnValue));
}
//! Return true if there is an element for which a given predicate returns true.
@@ -207,7 +207,7 @@ namespace BlackMisc
template <class MembFunc, class ReturnValue>
bool containsByValue(MembFunc membFunc, ReturnValue returnValue) const
{
return containsByValue(BlackMisc::Predicates::MemberEqual<Value>(membFunc, returnValue));
return containsByValue(BlackMisc::Predicates::MemberEqual(membFunc, returnValue));
}
//! Remove elements for which a given predicate for value returns true.
@@ -236,14 +236,14 @@ namespace BlackMisc
template <class MembFunc, class ReturnValue>
void removeByKeyIf(MembFunc membFunc, ReturnValue returnValue)
{
removeByKeyIf(BlackMisc::Predicates::MemberEqual<Key>(membFunc, returnValue));
removeByKeyIf(BlackMisc::Predicates::MemberEqual(membFunc, returnValue));
}
//! Remove elements for which value matches a particular pair.
template <class MembFunc, class ReturnValue>
void removeByValueIf(MembFunc membFunc, ReturnValue returnValue)
{
removeByValueIf(BlackMisc::Predicates::MemberEqual<Value>(membFunc, returnValue));
removeByValueIf(BlackMisc::Predicates::MemberEqual(membFunc, returnValue));
}
//! \copydoc BlackMisc::CValueObject::toQVariant

38
src/blackmisc/predicates.h
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@@ -25,42 +25,42 @@ namespace BlackMisc
template <class...> struct MemberEqual;
//! \private
template <class T, class M, class V> struct MemberEqual<T, M, V>
template <class M, class V> struct MemberEqual<M, V>
{
M m;
V v;
MemberEqual(M m_, V v_) : m(m_), v(v_) {}
bool operator()(const T &obj) const { return (obj.*m)() == v; }
template <class T> bool operator()(const T &obj) const { return (obj.*m)() == v; }
};
//! \private
template <class T, class M, class V, class... Tail> struct MemberEqual<T, M, V, Tail...>
template <class M, class V, class... Tail> struct MemberEqual<M, V, Tail...>
{
MemberEqual<T, M, V> head;
MemberEqual<T, Tail...> tail;
MemberEqual<M, V> head;
MemberEqual<Tail...> tail;
MemberEqual(M m, V v, Tail... tail_) : head(m, v), tail(tail_...) {}
bool operator()(const T &obj) const { return head(obj) && tail(obj); }
template <class T> bool operator()(const T &obj) const { return head(obj) && tail(obj); }
};
//! \private
template <class...> struct MemberLess;
//! \private
template <class T, class M> struct MemberLess<T, M>
template <class M> struct MemberLess<M>
{
M m;
MemberLess(M m_) : m(m_) {}
bool operator()(const T &a, const T &b) const { return (a.*m)() < (b.*m)(); }
bool isStable(const T &a, const T &b) const { return (a.*m)() != (b.*m)(); }
template <class T> bool operator()(const T &a, const T &b) const { return (a.*m)() < (b.*m)(); }
template <class T> bool isStable(const T &a, const T &b) const { return (a.*m)() != (b.*m)(); }
};
//! \private
template <class T, class M, class... Tail> struct MemberLess<T, M, Tail...>
template <class M, class... Tail> struct MemberLess<M, Tail...>
{
MemberLess<T, M> head;
MemberLess<T, Tail...> tail;
MemberLess<M> head;
MemberLess<Tail...> tail;
MemberLess(M m, Tail... tail_) : head(m), tail(tail_...) {}
bool operator()(const T &a, const T &b) const { return head.isStable(a, b) ? head(a, b) : tail(a, b); }
template <class T> bool operator()(const T &a, const T &b) const { return head.isStable(a, b) ? head(a, b) : tail(a, b); }
};
} //namespace Private
@@ -70,10 +70,10 @@ namespace BlackMisc
* \param vs Pairs of { pointer to member function of T, value to compare it against }.
* \return A unary functor whose operator() which will perform the actual test.
*/
template <class T, class... Ts>
typename Private::MemberEqual<T, Ts...> MemberEqual(Ts... vs)
template <class... Ts>
typename Private::MemberEqual<Ts...> MemberEqual(Ts... vs)
{
return typename Private::MemberEqual<T, Ts...>(vs...);
return typename Private::MemberEqual<Ts...>(vs...);
}
/*!
@@ -81,10 +81,10 @@ namespace BlackMisc
* \param vs Pointers to member functions of T.
* \return A binary functor whose operator() which will perform the actual test.
*/
template <class T, class... Ts>
typename Private::MemberLess<T, Ts...> MemberLess(Ts... vs)
template <class... Ts>
typename Private::MemberLess<Ts...> MemberLess(Ts... vs)
{
return typename Private::MemberLess<T, Ts...>(vs...);
return typename Private::MemberLess<Ts...>(vs...);
}
} //namespace Predicates

8
src/blackmisc/sequence.h
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@@ -308,7 +308,7 @@ namespace BlackMisc
template <class K1, class V1>
void applyIf(K1 key1, V1 value1, const CIndexVariantMap &newValues)
{
applyIf(BlackMisc::Predicates::MemberEqual<T>(key1, value1), newValues);
applyIf(BlackMisc::Predicates::MemberEqual(key1, value1), newValues);
}
/*!
@@ -354,7 +354,7 @@ namespace BlackMisc
template <class K1, class V1>
void replaceIf(K1 key1, V1 value1, const T &replacement)
{
replaceIf(BlackMisc::Predicates::MemberEqual<T>(key1, value1), replacement);
replaceIf(BlackMisc::Predicates::MemberEqual(key1, value1), replacement);
}
/*!
@@ -407,7 +407,7 @@ namespace BlackMisc
*/
template <class K1, class... Keys> void sortBy(K1 key1, Keys... keys)
{
sort(BlackMisc::Predicates::MemberLess<T>(key1, keys...));
sort(BlackMisc::Predicates::MemberLess(key1, keys...));
}
/*!
@@ -429,7 +429,7 @@ namespace BlackMisc
template <class K1, class... Keys>
CSequence sortedBy(K1 key1, Keys... keys) const
{
return sorted(BlackMisc::Predicates::MemberLess<T>(key1, keys...));
return sorted(BlackMisc::Predicates::MemberLess(key1, keys...));
}
/*!