Class: Covered::Capture

Inherits:
Wrapper show all
Defined in:
lib/covered/capture.rb

Instance Attribute Summary

Attributes inherited from Wrapper

#output

Instance Method Summary collapse

Methods inherited from Wrapper

#accept?, #each, #expand_path, #flush, #mark, #relative_path, #to_h

Methods inherited from Base

#accept?, #each, #expand_path, #flush, #mark, #relative_path

Constructor Details

#initialize(output) ⇒ Capture

Returns a new instance of Capture.



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# File 'lib/covered/capture.rb', line 27

def initialize(output)
	super(output)
	
	begin
		@trace = TracePoint.new(:line, :call, :c_call) do |trace|
			if trace.event == :call
				# Ruby doesn't always mark call-sites in sub-expressions, so we use this approach to compute a call site and mark it:
				if location = caller_locations(2, 1).first and path = location.path
					@output.mark(path, location.lineno, 1)
				end
			end
			
			if path = trace.path
				@output.mark(path, trace.lineno, 1)
			end
		end
	rescue
		warn "Line coverage disabled: #{$!}"
		@trace = nil
	end
end

Instance Method Details

#disable ⇒ Object 



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# File 'lib/covered/capture.rb', line 55

def disable
	@trace&.disable
	
	super
end

#enable ⇒ Object 



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# File 'lib/covered/capture.rb', line 49

def enable
	super
	
	@trace&.enable
end