File enumerator.rb
has 402 lines of code (exceeds 250 allowed). Consider refactoring. Open
class Enumerator
include Enumerable
attr_writer :args
private :args=
Method take
has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring. Open
def take(n)
n = Rubinius::Type.coerce_to n, Integer, :to_int
raise ArgumentError, "attempt to take negative size" if n < 0
current_size = enumerator_size
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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 zip
has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring. Open
def zip(*lists)
return super(*lists) { |entry| yield entry } if block_given?
lists.map! do |list|
array = Rubinius::Type.check_convert_type list, Array, :to_ary
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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 initialize
has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring. Open
def initialize(receiver_or_size=undefined, method_name=:each, *method_args, &block)
size = nil
if block_given?
unless undefined.equal? receiver_or_size
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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 zip
has 30 lines of code (exceeds 25 allowed). Consider refactoring. Open
def zip(*lists)
return super(*lists) { |entry| yield entry } if block_given?
lists.map! do |list|
array = Rubinius::Type.check_convert_type list, Array, :to_ary
Method collect_concat
has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring. Open
def collect_concat
raise ArgumentError, 'Lazy#{collect_concat,flat_map} requires a block' unless block_given?
Lazy.new(self, nil) do |yielder, *args|
yield_ret = yield(*args)
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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 drop_while
has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring. Open
def drop_while
raise ArgumentError, "Lazy#drop_while requires a block" unless block_given?
succeeding = true
Lazy.new(self, nil) do |yielder, *args|
- Read upRead up
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 grep
has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring. Open
def grep(pattern)
Lazy.new(self, nil) do |yielder, *args|
val = args.length >= 2 ? args : args.first
if pattern === val
- Read upRead up
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 drop
has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring. Open
def drop(n)
n = Rubinius::Type.coerce_to n, Integer, :to_int
raise ArgumentError, "attempt to drop negative size" if n < 0
current_size = enumerator_size
- Read upRead up
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 reject
has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring. Open
def reject
raise ArgumentError, "Lazy#reject requires a block" unless block_given?
Lazy.new(self, nil) do |yielder, *args|
val = args.length >= 2 ? args : args.first
- Read upRead up
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 grep_v
has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
def grep_v(pattern)
Lazy.new(self, nil) do |yielder, *args|
val = args.length >= 2 ? args : args.first
unless pattern === val
- Read upRead up
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 7 (exceeds 5 allowed). Consider refactoring. Open
def each(*args)
enumerator = self
new_args = @args
unless args.empty?
- Read upRead up
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 select
has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
def select
raise ArgumentError, 'Lazy#{select,find_all} requires a block' unless block_given?
Lazy.new(self, nil) do |yielder, *args|
val = args.length >= 2 ? args : args.first
- Read upRead up
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 reject
raise ArgumentError, "Lazy#reject requires a block" unless block_given?
Lazy.new(self, nil) do |yielder, *args|
val = args.length >= 2 ? args : args.first
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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 30.
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
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Similar blocks of code found in 2 locations. Consider refactoring. Open
def select
raise ArgumentError, 'Lazy#{select,find_all} requires a block' unless block_given?
Lazy.new(self, nil) do |yielder, *args|
val = args.length >= 2 ? args : args.first
- Read upRead up
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 30.
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
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76