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Added 'or else' construct to script language.

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git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@423 0fc631ac-6414-0410-93d0-97cfa31319b6
This commit is contained in:
twanvl
2007-06-14 18:31:47 +00:00
parent 40e55e8151
commit e287348843
8 changed files with 119 additions and 16 deletions
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src/script/to_value.hpp
+31
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@@ -31,6 +31,37 @@ ScriptValueP make_iterator(const T& v) {
template <typename T>
void mark_dependency_member(const T& value, const String& name, const Dependency& dep) {}
// ----------------------------------------------------------------------------- : Errors
/// A delayed error message.
/** Only when trying to use the object will the error be thrown.
* This can be 'caught' by the "or else" construct
*/
class ScriptDelayedError : public ScriptValue {
public:
inline ScriptDelayedError(const ScriptError& error) : error(error) {}
virtual ScriptType type() const;// { return SCRIPT_ERROR; }
// all of these throw
virtual String typeName() const;
virtual operator String() const;
virtual operator double() const;
virtual operator int() const;
virtual operator Color() const;
virtual int itemCount() const;
virtual const void* comparePointer() const;
// these can propagate the error
virtual ScriptValueP getMember(const String& name) const;
virtual ScriptValueP dependencyMember(const String& name, const Dependency&) const;
virtual ScriptValueP eval(Context&) const;
virtual ScriptValueP dependencies(Context&, const Dependency&) const;
virtual ScriptValueP makeIterator(const ScriptValueP& thisP) const;
private:
ScriptError error; // the error message
};
// ----------------------------------------------------------------------------- : Iterators
// Iterator over a collection