research/cantera
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add variants of AnyValue.asMap for accessing lists of maps

Browse source
This commit is contained in:
Ray Speth 2018-12-21 14:40:45 -05:00
parent 71bf44d11f
commit e28c9add21
2 changed files with 39 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
include/cantera/base/AnyMap.h
View file

@ -103,6 +103,18 @@ public:
template<class T>
std::map<std::string, T> asMap() const;
//! Access a vector<AnyMap> as a mapping using the value of `name` from each
//! item as the key in the new mapping.
/*!
* For example, for the list:
* ```
* [{name: O2, weight: 32}, {name: CH4, weight: 16}]
* ```
* calling `asMap("name")` will create a map with keys ``O2`` and ``CH4``.
*/
std::unordered_map<std::string, const AnyMap*> asMap(const std::string& name) const;
std::unordered_map<std::string, AnyMap*> asMap(const std::string& name);
//! @see AnyMap::applyUnits
void applyUnits(const UnitSystem& units);

27
src/base/AnyMap.cpp
View file

@ -361,6 +361,33 @@ AnyValue& AnyValue::operator=(AnyMap&& value) {
return *this;
}
std::unordered_map<std::string, const AnyMap*> AnyValue::asMap(
const std::string& name) const
{
std::unordered_map<std::string, const AnyMap*> mapped;
for (const auto& item : asVector<AnyMap>()) {
auto key = item.at(name).asString();
if (mapped.count(key)) {
throw CanteraError("AnyValue::asMap", "Duplicate key '{}'", key);
}
mapped.emplace(std::make_pair(key, &item));
}
return mapped;
}
std::unordered_map<std::string, AnyMap*> AnyValue::asMap(const std::string& name)
{
std::unordered_map<std::string, AnyMap*> mapped;
for (auto& item : asVector<AnyMap>()) {
auto key = item.at(name).asString();
if (mapped.count(key)) {
throw CanteraError("AnyValue::asMap", "Duplicate key '{}'", key);
}
mapped.emplace(std::make_pair(key, &item));
}
return mapped;
}
void AnyValue::applyUnits(const UnitSystem& units)
{
if (is<AnyMap>()) {