Does a statement after defer: get called when breaking iteration early?












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For example when iterating over lines of a file using the lines iterator from the standard library, does the file get closed correctly if I break the iteration early using break?










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    For example when iterating over lines of a file using the lines iterator from the standard library, does the file get closed correctly if I break the iteration early using break?










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      For example when iterating over lines of a file using the lines iterator from the standard library, does the file get closed correctly if I break the iteration early using break?










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      For example when iterating over lines of a file using the lines iterator from the standard library, does the file get closed correctly if I break the iteration early using break?







      nim






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      asked Jan 20 at 9:46









      Zoltán TankóZoltán Tankó

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          As the documentation says:



          var f = open("numbers.txt")
          defer: close(f)
          f.write "abc"
          f.write "def"


          Gets translated into:



          var f = open("numbers.txt")
          try:
          f.write "abc"
          f.write "def"
          finally:
          close(f)


          So the close(f) will be always called after the try code, even if it includes a break.






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            1 Answer
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            As the documentation says:



            var f = open("numbers.txt")
            defer: close(f)
            f.write "abc"
            f.write "def"


            Gets translated into:



            var f = open("numbers.txt")
            try:
            f.write "abc"
            f.write "def"
            finally:
            close(f)


            So the close(f) will be always called after the try code, even if it includes a break.






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              1














              As the documentation says:



              var f = open("numbers.txt")
              defer: close(f)
              f.write "abc"
              f.write "def"


              Gets translated into:



              var f = open("numbers.txt")
              try:
              f.write "abc"
              f.write "def"
              finally:
              close(f)


              So the close(f) will be always called after the try code, even if it includes a break.






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                1












                1








                1







                As the documentation says:



                var f = open("numbers.txt")
                defer: close(f)
                f.write "abc"
                f.write "def"


                Gets translated into:



                var f = open("numbers.txt")
                try:
                f.write "abc"
                f.write "def"
                finally:
                close(f)


                So the close(f) will be always called after the try code, even if it includes a break.






                share|improve this answer













                As the documentation says:



                var f = open("numbers.txt")
                defer: close(f)
                f.write "abc"
                f.write "def"


                Gets translated into:



                var f = open("numbers.txt")
                try:
                f.write "abc"
                f.write "def"
                finally:
                close(f)


                So the close(f) will be always called after the try code, even if it includes a break.







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                answered Jan 24 at 13:28









                xbelloxbello

                4,05211835




                4,05211835
































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