logsnapshot.cxh

#include <cx/format/formattable.cxh>
 
// A rendering of an object argument, taken at the call site.
//
// Deferred formatting cannot defer an object: it would render whatever state the object was in
// when the drain thread got to it rather than when it was logged. So an object argument is
// rendered immediately and replaced by one of these, which renders back to the text that was
// captured.
//
// It has to be an object rather than the plain string, because the template still says ${object}
// and a placeholder resolves by type. The substitution is therefore invisible to the format
// string, which is the entire point.
class LogSnapshot implements Formattable
{
    string text;
    factory create(string text);
}