This cop checks that the ABC size of methods is not higher than the
configured maximum. The ABC size is based on assignments, branches
(method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
This cop checks if the length of a method exceeds some maximum value.
Comment lines can optionally be ignored.
The maximum allowed length is configurable.
This cop checks that the ABC size of methods is not higher than the
configured maximum. The ABC size is based on assignments, branches
(method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
This cop checks that the cyclomatic complexity of methods is not higher
than the configured maximum. The cyclomatic complexity is the number of
linearly independent paths through a method. The algorithm counts
decision points and adds one.
An if statement (or unless or ?:) increases the complexity by one. An
else branch does not, since it doesn't add a decision point. The &&
operator (or keyword and) can be converted to a nested if statement,
and ||/or is shorthand for a sequence of ifs, so they also add one.
Loops can be said to have an exit condition, so they add one.
This cop checks that the ABC size of methods is not higher than the
configured maximum. The ABC size is based on assignments, branches
(method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
This cop checks that the ABC size of methods is not higher than the
configured maximum. The ABC size is based on assignments, branches
(method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
This cop tries to produce a complexity score that's a measure of the
complexity the reader experiences when looking at a method. For that
reason it considers when nodes as something that doesn't add as much
complexity as an if or a &&. Except if it's one of those special
case/when constructs where there's no expression after case. Then
the cop treats it as an if/elsif/elsif... and lets all the when
nodes count. In contrast to the CyclomaticComplexity cop, this cop
considers else nodes as adding complexity.
Example:
def my_method # 1
if cond # 1
case var # 2 (0.8 + 4 * 0.2, rounded)
when 1 then func_one
when 2 then func_two
when 3 then func_three
when 4..10 then func_other
end
else # 1
do_something until a && b # 2
end # ===
end # 7 complexity points
This cop checks that the ABC size of methods is not higher than the
configured maximum. The ABC size is based on assignments, branches
(method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
This cop checks that the ABC size of methods is not higher than the
configured maximum. The ABC size is based on assignments, branches
(method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric
This cop checks that the cyclomatic complexity of methods is not higher
than the configured maximum. The cyclomatic complexity is the number of
linearly independent paths through a method. The algorithm counts
decision points and adds one.
An if statement (or unless or ?:) increases the complexity by one. An
else branch does not, since it doesn't add a decision point. The &&
operator (or keyword and) can be converted to a nested if statement,
and ||/or is shorthand for a sequence of ifs, so they also add one.
Loops can be said to have an exit condition, so they add one.
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"
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"
This cop checks if the length of a block exceeds some maximum value.
Comment lines can optionally be ignored.
The maximum allowed length is configurable.
The cop can be configured to ignore blocks passed to certain methods.
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"
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"
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"
This cop checks for methods with too many parameters.
The maximum number of parameters is configurable.
Keyword arguments can optionally be excluded from the total count.
MD009 - Trailing spaces
Tags: whitespace
Aliases: no-trailing-spaces
Parameters: br_spaces (number; default: 0)
This rule is triggered on any lines that end with whitespace. To fix this,
find the line that is triggered and remove any trailing spaces from the end.
The brspaces parameter allows an exception to this rule for a specific amount
of trailing spaces used to insert an explicit line break/br element. For
example, set brspaces to 2 to allow exactly 2 spaces at the end of a line.
Note: you have to set brspaces to 2 or higher for this exception to take
effect - you can't insert a br element with just a single trailing space, so
if you set brspaces to 1, the exception will be disabled, just as if it was
set to the default of 0.
MD009 - Trailing spaces
Tags: whitespace
Aliases: no-trailing-spaces
Parameters: br_spaces (number; default: 0)
This rule is triggered on any lines that end with whitespace. To fix this,
find the line that is triggered and remove any trailing spaces from the end.
The brspaces parameter allows an exception to this rule for a specific amount
of trailing spaces used to insert an explicit line break/br element. For
example, set brspaces to 2 to allow exactly 2 spaces at the end of a line.
Note: you have to set brspaces to 2 or higher for this exception to take
effect - you can't insert a br element with just a single trailing space, so
if you set brspaces to 1, the exception will be disabled, just as if it was
set to the default of 0.