discard """ action: "run" """ import jsffi # Can catch JS exceptions try: asm """throw new Error('a new error');""" except JsError as e: doAssert e.message == "a new error" except: doAssert false # Can distinguish different exceptions try: asm """JSON.parse(';;');""" except JsEvalError: doAssert false except JsSyntaxError as se: doAssert se.message == "Unexpected token ; in JSON at position 0" except JsError as e: doAssert false # Can catch parent exception try: asm """throw new SyntaxError();""" except JsError as e: discard except: doAssert false