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DynamicStruct keyed by integer

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This commit is contained in:
Aleksandar Fabijanic
2008-11-24 12:36:15 +00:00
parent 721062b0d3
commit d43f4d6164
6 changed files with 325 additions and 222 deletions
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28
Foundation/include/Poco/Dynamic/Var.h
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@@ -50,6 +50,10 @@ namespace Poco {
namespace Dynamic {
template <typename T>
class Struct;
class Foundation_API Var
/// Var allows to store data of different types and to convert between these types transparently.
/// Var puts forth the best effort to provide intuitive and reasonable conversion semantics and prevent
@@ -424,20 +428,32 @@ public:
template <typename T>
Var& operator [] (T n)
/// Index operator, only use on Vars where isArray
/// Index operator, only use on Vars where isArray() or isStruct()
/// returns true! In all other cases InvalidAccessException is thrown.
{
return holderImpl<std::vector<Var>,
InvalidAccessException>("Not an array.")->operator[](n);
if (isArray())
return holderImpl<std::vector<Var>,
InvalidAccessException>("Not an array.")->operator[](n);
else if (isStruct())
return holderImpl<Struct<int>,
InvalidAccessException>("Not a struct.")->operator[](n);
else
throw InvalidAccessException("Must be struct or array.");
}
template <typename T>
const Var& operator [] (T n) const
/// const Index operator, only use on Vars where isArray
/// const Index operator, only use on Vars where isArray() or isStruct()
/// returns true! In all other cases InvalidAccessException is thrown.
{
return const_cast<const Var&>(holderImpl<std::vector<Var>,
InvalidAccessException>("Not an array.")->operator[](n));
if (isArray())
return const_cast<const Var&>(holderImpl<std::vector<Var>,
InvalidAccessException>("Not an array.")->operator[](n));
else if (isStruct())
return const_cast<const Var&>(holderImpl<Struct<int>,
InvalidAccessException>("Not a struct.")->operator[](n));
else
throw InvalidAccessException("Must be struct or array.");
}
Var& operator [] (const std::string& name);