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This commit is contained in:
Guillaume Munch 2017-02-22 16:56:43 +01:00
parent b01dd12c72
commit 8353a53cc3
1 changed files with 5 additions and 4 deletions
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9
src/support/Cache.h
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@ -51,15 +51,17 @@ public:
{
return Q::insert(key, new Val(std::move(object)), cost);
}
// Returns the default value (e.g. null pointer) before using the result. If
// this is not convenient for your type, check if it exists beforehand with
// Cache::contains.
// Returns the default value (e.g. null pointer) if not found in the
// cache. If this is not convenient for your class Val, check if it exists
// beforehand with Cache::contains.
Val object(Key const & key) const
{
if (Val * obj = Q::object(key))
return *obj;
return Val();
}
/// Synonymous for object, same remark as above.
Val operator[](Key const & key) const { return object(key); }
/// Everything from QCache except QCache::take.
using Q::clear;
using Q::contains;
@ -71,7 +73,6 @@ public:
int max_cost() const { return Q::maxCost(); }
void set_max_cost(int cost) { Q::setMaxCost(cost); }
int total_cost() const { return Q::totalCost(); }
Val operator[](Key const & key) const { return object(key); }
};
} // namespace lyx