Store options given to collector in the result

[dalehamel]

Eg:

vernier/ext/vernier/vernier.cc

Lines 1482 to 1503 in dc16edf

	static VALUE collector_new(VALUE self, VALUE mode, VALUE options) {
	BaseCollector *collector;
	if (mode == sym("retained")) {
	collector = new RetainedCollector();
	} else if (mode == sym("custom")) {
	collector = new CustomCollector();
	} else if (mode == sym("wall")) {
	VALUE intervalv = rb_hash_aref(options, sym("interval"));
	TimeStamp interval;
	if (NIL_P(intervalv)) {
	interval = TimeStamp::from_microseconds(500);
	} else {
	interval = TimeStamp::from_microseconds(NUM2UINT(intervalv));
	}
	collector = new TimeCollector(interval);
	} else {
	rb_raise(rb_eArgError, "invalid mode");
	}
	VALUE obj = TypedData_Wrap_Struct(self, &rb_collector_type, collector);
	rb_funcall(obj, rb_intern("initialize"), 1, mode);
	return obj;
	}

Can the mode and interval passed to the collector be added to Result (perhaps in Result.meta hash?) so that we can determine after the fact what the parameters were for the profile?

So something like:

collector = Vernier::Collector.new(:wall, interval: 1000)
collector.start
foo
result = collector.stop
assert_equal :wall, result.meta[:mode] 
assert_equal 1000, result.meta[:interval]

[joshuay03]

#76