Method has too many lines. [23/10] Open
def start_element(name, attributes = [])
case name.to_sym
when :Table
self.within_table = true
when :Row
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- Exclude checks
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.
Assignment Branch Condition size for start_element is too high. [27.31/15] Open
def start_element(name, attributes = [])
case name.to_sym
when :Table
self.within_table = true
when :Row
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- Exclude checks
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
Method has too many lines. [13/10] Open
def end_element(name)
case name.to_sym
when :Table
self.within_table = false
self.current_row = 0
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- Exclude checks
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.
Cyclomatic complexity for start_element is too high. [8/6] Open
def start_element(name, attributes = [])
case name.to_sym
when :Table
self.within_table = true
when :Row
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- Exclude checks
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.
Use %r
around regular expression. Open
excel_xml.gsub!(/<(?:ss\:)?Data[^>]*>(.*)<\/(?:ss\:)?Data>/i) do |match|
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- Exclude checks
This cop enforces using // or %r around regular expressions.
Example: EnforcedStyle: slashes (default)
# bad
snake_case = %r{^[\dA-Z_]+$}
# bad
regex = %r{
foo
(bar)
(baz)
}x
# good
snake_case = /^[\dA-Z_]+$/
# good
regex = /
foo
(bar)
(baz)
/x
Example: EnforcedStyle: percent_r
# bad
snake_case = /^[\dA-Z_]+$/
# bad
regex = /
foo
(bar)
(baz)
/x
# good
snake_case = %r{^[\dA-Z_]+$}
# good
regex = %r{
foo
(bar)
(baz)
}x
Example: EnforcedStyle: mixed
# bad
snake_case = %r{^[\dA-Z_]+$}
# bad
regex = /
foo
(bar)
(baz)
/x
# good
snake_case = /^[\dA-Z_]+$/
# good
regex = %r{
foo
(bar)
(baz)
}x
Example: AllowInnerSlashes: false (default)
# If `false`, the cop will always recommend using `%r` if one or more
# slashes are found in the regexp string.
# bad
x =~ /home\//
# good
x =~ %r{home/}
Example: AllowInnerSlashes: true
# good
x =~ /home\//
Unused block argument - match
. You can omit the argument if you don't care about it. Open
excel_xml.gsub!(/<(?:ss\:)?Data[^>]*>(.*)<\/(?:ss\:)?Data>/i) do |match|
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- Exclude checks
This cop checks for unused block arguments.
Example:
# bad
do_something do |used, unused|
puts used
end
do_something do |bar|
puts :foo
end
define_method(:foo) do |bar|
puts :baz
end
Example:
#good
do_something do |used, _unused|
puts used
end
do_something do
puts :foo
end
define_method(:foo) do |_bar|
puts :baz
end
Unused method argument - options
. If it's necessary, use _
or _options
as an argument name to indicate that it won't be used. Open
def initialize(path_to_xl_xml_file, options = {})
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- Exclude checks
This cop checks for unused method arguments.
Example:
# bad
def some_method(used, unused, _unused_but_allowed)
puts used
end
Example:
# good
def some_method(used, _unused, _unused_but_allowed)
puts used
end
Use a guard clause instead of wrapping the code inside a conditional expression. Open
if self.current_row == 1
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Use a guard clause instead of wrapping the code inside a conditional expression
Example:
# bad
def test
if something
work
end
end
# good
def test
return unless something
work
end
# also good
def test
work if something
end
# bad
if something
raise 'exception'
else
ok
end
# good
raise 'exception' if something
ok
self
used in void context. Open
self
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- Exclude checks
This cop checks for operators, variables and literals used in void context.
Example:
# bad
def some_method
some_num * 10
do_something
end
Example:
# bad
def some_method(some_var)
some_var
do_something
end
Example:
# good
def some_method
do_something
some_num * 10
end
Example:
# good
def some_method(some_var)
do_something
some_var
end
Avoid the use of Perl-style backrefs. Open
value = $1
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- Exclude checks
This cop looks for uses of Perl-style regexp match backreferences like $1, $2, etc.
Example:
# bad
puts $1
# good
puts Regexp.last_match(1)