namespace Cobra.Core

	class ExceptionReportWriter
		is abstract
	
		def writeReport(tw as TextWriter, exc as Exception?)
			.writeReport(tw, exc, CobraImp.detailedStackTrace)

		def writeReport(tw as TextWriter, exc as Exception?, frames as Stack<of CobraFrame>) is abstract


	class TextExceptionReportWriter
		inherits ExceptionReportWriter

		def writeReport(tw as TextWriter, exc as Exception?, frames as Stack<of CobraFrame>) is override
			# dump the most recent stack frames last since the text will output top-down and scroll in the shell
			tw.writeLine('Stack trace:')
			if not frames.count
				tw.writeLine('No stack frames.')
			else
				i = 0
				for frame in frames
					frame.dumpText(tw, i)
					i += 1