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-rw-r--r--libcutl/compiler/context.txx87
1 files changed, 87 insertions, 0 deletions
diff --git a/libcutl/compiler/context.txx b/libcutl/compiler/context.txx
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+// file : libcutl/compiler/context.txx
+// license : MIT; see accompanying LICENSE file
+
+namespace cutl
+{
+ namespace compiler
+ {
+ template <typename X>
+ X& context::
+ get (std::string const& key)
+ {
+ map::iterator i (map_.find (key));
+
+ if (i == map_.end ())
+ throw no_entry ();
+
+ try
+ {
+ return i->second. template value<X> ();
+ }
+ catch (container::any::typing const&)
+ {
+ throw typing ();
+ }
+ }
+
+ template <typename X>
+ X const& context::
+ get (std::string const& key) const
+ {
+ map::const_iterator i (map_.find (key));
+
+ if (i == map_.end ())
+ throw no_entry ();
+
+ try
+ {
+ return i->second. template value<X> ();
+ }
+ catch (container::any::typing const&)
+ {
+ throw typing ();
+ }
+ }
+
+ template <typename X>
+ X const& context::
+ get (std::string const& key, X const& default_value) const
+ {
+ map::const_iterator i (map_.find (key));
+
+ if (i == map_.end ())
+ return default_value;
+
+ try
+ {
+ return i->second. template value<X> ();
+ }
+ catch (container::any::typing const&)
+ {
+ throw typing ();
+ }
+ }
+
+ template <typename X>
+ X& context::
+ set (std::string const& key, X const& value)
+ {
+ try
+ {
+ std::pair<map::iterator, bool> r (
+ map_.insert (map::value_type (key, value)));
+
+ X& x (r.first->second. template value<X> ());
+
+ if (!r.second)
+ x = value;
+
+ return x;
+ }
+ catch (container::any::typing const&)
+ {
+ throw typing ();
+ }
+ }
+ }
+}