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lib/motion-csv/stringio.rb

Summary

Maintainability
F
5 days
Test Coverage

File stringio.rb has 512 lines of code (exceeds 250 allowed). Consider refactoring.
Open

class StringIO

  attr_reader :string, :pos

  #   strio.lineno    -> integer
Severity: Major
Found in lib/motion-csv/stringio.rb - About 1 day to fix

    Class StringIO has 56 methods (exceeds 20 allowed). Consider refactoring.
    Open

    class StringIO

  attr_reader :string, :pos

  #   strio.lineno    -> integer
    Severity: Major
    Found in lib/motion-csv/stringio.rb - About 1 day to fix

      Method puts has a Cognitive Complexity of 27 (exceeds 5 allowed). Consider refactoring.
      Open

        def puts(*args)
    if args.empty?
      write("\n")
    else
      args.each do |arg|
      Severity: Minor
      Found in lib/motion-csv/stringio.rb - About 3 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Method read has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.
      Open

        def read(length = nil, buffer = String.new)
    raise IOError, "not opened for reading" unless @readable
    raise TypeError unless buffer.respond_to?(:to_str)
    buffer = buffer.to_str
      Severity: Minor
      Found in lib/motion-csv/stringio.rb - About 2 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Method getline has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
      Open

          def getline(sep = $/, lim = nil)
      raise(IOError, "not opened for reading") unless @readable
      return nil if eof?

      offset = limit = -1
      Severity: Minor
      Found in lib/motion-csv/stringio.rb - About 2 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Method set_mode_from_string has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
      Open

          def set_mode_from_string(mode)
      @readable = @writable = @append = false

      case mode
      when "r", "rb"
      Severity: Minor
      Found in lib/motion-csv/stringio.rb - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Method write has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
      Open

        def write(str)
    raise(IOError, "not opened for writing") unless @writable
    raise(IOError, "not modifiable string") if @string.frozen?

    str = str.to_s
      Severity: Minor
      Found in lib/motion-csv/stringio.rb - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Method getline has 35 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          def getline(sep = $/, lim = nil)
      raise(IOError, "not opened for reading") unless @readable
      return nil if eof?

      offset = limit = -1
      Severity: Minor
      Found in lib/motion-csv/stringio.rb - About 1 hr to fix

        Method putc has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
        Open

          def putc(obj)
    raise(IOError, "not opened for writing") unless @writable

    if obj.is_a?(String)
      char = obj[0]
        Severity: Minor
        Found in lib/motion-csv/stringio.rb - About 1 hr to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Method puts has 29 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          def puts(*args)
    if args.empty?
      write("\n")
    else
      args.each do |arg|
        Severity: Minor
        Found in lib/motion-csv/stringio.rb - About 1 hr to fix

          Method getline_args has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
          Open

              def getline_args(sep = $/, lim = nil)
      if lim == nil && !sep.kind_of?(String)
        if !sep.respond_to?(:to_str)
          lim = sep
          sep = nil
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 1 hr to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method reopen has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
          Open

            def reopen(str=nil, mode=nil)
    if str == nil && mode == nil
      mode = 'w+'
    elsif !str.kind_of?(String) && mode == nil
      raise TypeError unless str.respond_to?(:to_strio)
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 1 hr to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method each has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
          Open

            def each(sep=$/, limit=nil)
    if block_given?
      raise(IOError, "not opened for reading") unless @readable
      sep, limit = getline_args(sep, limit)
      if limit == 0
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 55 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method set_mode_from_integer has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
          Open

              def set_mode_from_integer(mode)
      @readable = @writable = @append = false

      case mode & (IO::RDONLY | IO::WRONLY | IO::RDWR)
      when IO::RDONLY
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 55 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method ungetbyte has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
          Open

            def ungetbyte(bytes)
    raise(IOError, "not opened for reading") unless @readable
    return nil if bytes == nil

    bytes = bytes.chr if bytes.kind_of?(Fixnum)
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 45 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method ungetc has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
          Open

            def ungetc(chars)
    raise(IOError, "not opened for reading") unless @readable
    return nil if chars == nil

    chars = chars.chr if chars.kind_of?(Fixnum)
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 45 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method truncate has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
          Open

            def truncate(len)
    raise(IOError, "closing non-duplex IO for writing") unless @writable
    raise(TypeError) unless len.respond_to?(:to_int)
    length = len.to_int
    raise(Errno::EINVAL, "negative length") if (length < 0)
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 35 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method define_mode has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
          Open

              def define_mode(mode=nil)
      if mode == nil
        # default modes
        @string.frozen? ? set_mode_from_string("r") : set_mode_from_string("r+")
      elsif mode.is_a?(Integer)
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 25 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Method print has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
          Open

            def print(*args)
    raise IOError, "not opened for writing" unless @writable
    args << $_ if args.empty?
    args.map! { |x| (x == nil) ? "nil" : x }
    write((args << $\).flatten.join)
          Severity: Minor
          Found in lib/motion-csv/stringio.rb - About 25 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

            def ungetc(chars)
    raise(IOError, "not opened for reading") unless @readable
    return nil if chars == nil

    chars = chars.chr if chars.kind_of?(Fixnum)
          Severity: Major
          Found in lib/motion-csv/stringio.rb and 1 other location - About 1 hr to fix
          lib/motion-csv/stringio.rb on lines 376..391

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 51.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

            def ungetbyte(bytes)
    raise(IOError, "not opened for reading") unless @readable
    return nil if bytes == nil

    bytes = bytes.chr if bytes.kind_of?(Fixnum)
          Severity: Major
          Found in lib/motion-csv/stringio.rb and 1 other location - About 1 hr to fix
          lib/motion-csv/stringio.rb on lines 354..369

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 51.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

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