Assignment Branch Condition size for acts_as_inheritable is too high. [103/15] Open
def acts_as_inheritable(options)
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
class_attribute :inheritable_configuration
- Read upRead up
- 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. [72/10] Open
def acts_as_inheritable(options)
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
class_attribute :inheritable_configuration
- Read upRead up
- 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 verify_parent_name is too high. [37.01/15] Open
def verify_parent_name(new_relation, model_parent)
parent_name = model_parent.class.to_s.downcase
return parent_name if new_relation.respond_to?(parent_name)
many_and_one_associations = model_parent.class.reflect_on_all_associations.select { |a| a.macro != :belongs_to }
many_and_one_associations.each do |association|
- Read upRead up
- 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
Perceived complexity for acts_as_inheritable is too high. [27/7] Open
def acts_as_inheritable(options)
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
class_attribute :inheritable_configuration
- Read upRead up
- Exclude checks
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
Cyclomatic complexity for acts_as_inheritable is too high. [25/6] Open
def acts_as_inheritable(options)
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
class_attribute :inheritable_configuration
- Read upRead up
- 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.
Block has too many lines. [65/25] Open
class_eval do
def has_parent?
parent.present?
end
- Read upRead up
- Exclude checks
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.
Method verify_parent_name
has a Cognitive Complexity of 22 (exceeds 5 allowed). Consider refactoring. Open
def verify_parent_name(new_relation, model_parent)
parent_name = model_parent.class.to_s.downcase
return parent_name if new_relation.respond_to?(parent_name)
many_and_one_associations = model_parent.class.reflect_on_all_associations.select { |a| a.macro != :belongs_to }
many_and_one_associations.each do |association|
- 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 acts_as_inheritable
has 72 lines of code (exceeds 25 allowed). Consider refactoring. Open
def acts_as_inheritable(options)
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
class_attribute :inheritable_configuration
Method has too many lines. [19/10] Open
def verify_parent_name(new_relation, model_parent)
parent_name = model_parent.class.to_s.downcase
return parent_name if new_relation.respond_to?(parent_name)
many_and_one_associations = model_parent.class.reflect_on_all_associations.select { |a| a.macro != :belongs_to }
many_and_one_associations.each do |association|
- Read upRead up
- 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 inherit_attributes is too high. [20.35/15] Open
def inherit_attributes(force = false, not_force_for = [], method_to_update = nil)
available_methods = ['update_attributes', 'update_columns']
if has_parent? && self.class.inheritable_configuration[:attributes]
# Attributes
self.class.inheritable_configuration[:attributes].each do |attribute|
- Read upRead up
- 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 inherit_attributes(force = false, not_force_for = [], method_to_update = nil)
available_methods = ['update_attributes', 'update_columns']
if has_parent? && self.class.inheritable_configuration[:attributes]
# Attributes
self.class.inheritable_configuration[:attributes].each do |attribute|
- Read upRead up
- 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.
Method has too many lines. [13/10] Open
def inherit_instance(current, model_parent, relation, relation_instance)
new_relation = relation_instance.dup
belongs_to_associations_names = model_parent.class.reflect_on_all_associations(:belongs_to).collect(&:name)
saved =
# Is a `belongs_to` association
- Read upRead up
- 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.
Method inherit_attributes
has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring. Open
def inherit_attributes(force = false, not_force_for = [], method_to_update = nil)
available_methods = ['update_attributes', 'update_columns']
if has_parent? && self.class.inheritable_configuration[:attributes]
# Attributes
self.class.inheritable_configuration[:attributes].each do |attribute|
- 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
Perceived complexity for inherit_attributes is too high. [9/7] Open
def inherit_attributes(force = false, not_force_for = [], method_to_update = nil)
available_methods = ['update_attributes', 'update_columns']
if has_parent? && self.class.inheritable_configuration[:attributes]
# Attributes
self.class.inheritable_configuration[:attributes].each do |attribute|
- Read upRead up
- Exclude checks
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
Cyclomatic complexity for verify_parent_name is too high. [8/6] Open
def verify_parent_name(new_relation, model_parent)
parent_name = model_parent.class.to_s.downcase
return parent_name if new_relation.respond_to?(parent_name)
many_and_one_associations = model_parent.class.reflect_on_all_associations.select { |a| a.macro != :belongs_to }
many_and_one_associations.each do |association|
- Read upRead up
- 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.
Cyclomatic complexity for inherit_attributes is too high. [8/6] Open
def inherit_attributes(force = false, not_force_for = [], method_to_update = nil)
available_methods = ['update_attributes', 'update_columns']
if has_parent? && self.class.inheritable_configuration[:attributes]
# Attributes
self.class.inheritable_configuration[:attributes].each do |attribute|
- Read upRead up
- 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.
Perceived complexity for verify_parent_name is too high. [8/7] Open
def verify_parent_name(new_relation, model_parent)
parent_name = model_parent.class.to_s.downcase
return parent_name if new_relation.respond_to?(parent_name)
many_and_one_associations = model_parent.class.reflect_on_all_associations.select { |a| a.macro != :belongs_to }
many_and_one_associations.each do |association|
- Read upRead up
- Exclude checks
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
Assignment Branch Condition size for inherit_instance is too high. [15.17/15] Open
def inherit_instance(current, model_parent, relation, relation_instance)
new_relation = relation_instance.dup
belongs_to_associations_names = model_parent.class.reflect_on_all_associations(:belongs_to).collect(&:name)
saved =
# Is a `belongs_to` association
- Read upRead up
- 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 inherit_instance
has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring. Open
def inherit_instance(current, model_parent, relation, relation_instance)
new_relation = relation_instance.dup
belongs_to_associations_names = model_parent.class.reflect_on_all_associations(:belongs_to).collect(&:name)
saved =
# Is a `belongs_to` association
- 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 inherit_relations
has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring. Open
def inherit_relations(model_parent = send(:parent), current = self)
if model_parent && current.class.method_defined?(:inheritable_configuration) && current.class.inheritable_configuration[:associations]
current.class.inheritable_configuration[:associations].each do |relation|
parent_relation = model_parent.send(relation)
relation_instances = parent_relation.respond_to?(:each) ? parent_relation : [parent_relation].compact
- 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
Use casecmp
instead of downcase ==
. Open
next unless association.klass.to_s.downcase == new_relation.class.to_s.downcase && association.options.key?(:as)
- Read upRead up
- Exclude checks
This cop identifies places where a case-insensitive string comparison
can better be implemented using casecmp
.
Example:
# bad
str.downcase == 'abc'
str.upcase.eql? 'ABC'
'abc' == str.downcase
'ABC'.eql? str.upcase
str.downcase == str.downcase
# good
str.casecmp('ABC').zero?
'abc'.casecmp(str).zero?
Line is too long. [82/80] Open
inherit_instance(current, model_parent, relation, relation_instance)
- Exclude checks
Line is too long. [83/80] Open
if new_relation.respond_to?(as) && !new_relation.respond_to?(parent_name)
- Exclude checks
Use a guard clause instead of wrapping the code inside a conditional expression. Open
if has_parent? && self.class.inheritable_configuration[:attributes]
- Read upRead up
- Exclude checks
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
Space inside { missing. Open
send(method_to_update, {attribute => parent.send(attribute)})
- Read upRead up
- Exclude checks
Checks that braces used for hash literals have or don't have surrounding space depending on configuration.
Example: EnforcedStyle: space
# The `space` style enforces that hash literals have
# surrounding space.
# bad
h = {a: 1, b: 2}
# good
h = { a: 1, b: 2 }
Example: EnforcedStyle: no_space
# The `no_space` style enforces that hash literals have
# no surrounding space.
# bad
h = { a: 1, b: 2 }
# good
h = {a: 1, b: 2}
Example: EnforcedStyle: compact
# The `compact` style normally requires a space inside
# hash braces, with the exception that successive left
# braces or right braces are collapsed together in nested hashes.
# bad
h = { a: { b: 2 } }
# good
h = { a: { b: 2 }}
Line is too long. [93/80] Open
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
- Exclude checks
Line is too long. [104/80] Open
next unless new_relation.class.reflections[reflection].class_name == model_parent.class.name
- Exclude checks
Line is too long. [142/80] Open
if model_parent && current.class.method_defined?(:inheritable_configuration) && current.class.inheritable_configuration[:associations]
- Exclude checks
Line is too long. [120/80] Open
many_and_one_associations = model_parent.class.reflect_on_all_associations.select { |a| a.macro != :belongs_to }
- Exclude checks
Line is too long. [83/80] Open
current.class.inheritable_configuration[:associations].each do |relation|
- Exclude checks
Rename has_parent?
to parent?
. Open
def has_parent?
- Read upRead up
- Exclude checks
This cop makes sure that predicates are named properly.
Example:
# bad
def is_even?(value)
end
# good
def even?(value)
end
# bad
def has_value?
end
# good
def value?
end
Line is too long. [113/80] Open
relation_instances = parent_relation.respond_to?(:each) ? parent_relation : [parent_relation].compact
- Exclude checks
Line is too long. [115/80] Open
belongs_to_associations_names = model_parent.class.reflect_on_all_associations(:belongs_to).collect(&:name)
- Exclude checks
Line is too long. [103/80] Open
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
- Exclude checks
Always use raise
to signal exceptions. Open
fail ArgumentError, "Hash expected, got #{options.class.name}" unless options.is_a?(Hash)
- Read upRead up
- Exclude checks
This cop checks for uses of fail
and raise
.
Example: EnforcedStyle: only_raise (default)
# The `only_raise` style enforces the sole use of `raise`.
# bad
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
# handle it
end
Kernel.fail
# good
begin
raise
rescue Exception
# handle it
end
def watch_out
raise
rescue Exception
# handle it
end
Kernel.raise
Example: EnforcedStyle: only_fail
# The `only_fail` style enforces the sole use of `fail`.
# bad
begin
raise
rescue Exception
# handle it
end
def watch_out
raise
rescue Exception
# handle it
end
Kernel.raise
# good
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
# handle it
end
Kernel.fail
Example: EnforcedStyle: semantic
# The `semantic` style enforces the use of `fail` to signal an
# exception, then will use `raise` to trigger an offense after
# it has been rescued.
# bad
begin
raise
rescue Exception
# handle it
end
def watch_out
# Error thrown
rescue Exception
fail
end
Kernel.fail
Kernel.raise
# good
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
raise 'Preferably with descriptive message'
end
explicit_receiver.fail
explicit_receiver.raise
Line is too long. [82/80] Open
if (force && !not_force_for.include?(attribute)) || current_val.blank?
- Exclude checks
Use %w
or %W
for an array of words. Open
available_methods = ['update_attributes', 'update_columns']
- Read upRead up
- Exclude checks
This cop can check for array literals made up of word-like strings, that are not using the %w() syntax.
Alternatively, it can check for uses of the %w() syntax, in projects which do not want to include that syntax.
Configuration option: MinSize
If set, arrays with fewer elements than this value will not trigger the
cop. For example, a MinSize
of 3
will not enforce a style on an
array of 2 or fewer elements.
Example: EnforcedStyle: percent (default)
# good
%w[foo bar baz]
# bad
['foo', 'bar', 'baz']
Example: EnforcedStyle: brackets
# good
['foo', 'bar', 'baz']
# bad
%w[foo bar baz]
Space inside } missing. Open
send(method_to_update, {attribute => parent.send(attribute)})
- Read upRead up
- Exclude checks
Checks that braces used for hash literals have or don't have surrounding space depending on configuration.
Example: EnforcedStyle: space
# The `space` style enforces that hash literals have
# surrounding space.
# bad
h = {a: 1, b: 2}
# good
h = { a: 1, b: 2 }
Example: EnforcedStyle: no_space
# The `no_space` style enforces that hash literals have
# no surrounding space.
# bad
h = { a: 1, b: 2 }
# good
h = {a: 1, b: 2}
Example: EnforcedStyle: compact
# The `compact` style normally requires a space inside
# hash braces, with the exception that successive left
# braces or right braces are collapsed together in nested hashes.
# bad
h = { a: { b: 2 } }
# good
h = { a: { b: 2 }}
Line is too long. [122/80] Open
next unless association.klass.to_s.downcase == new_relation.class.to_s.downcase && association.options.key?(:as)
- Exclude checks
Line is too long. [87/80] Open
def inherit_attributes(force = false, not_force_for = [], method_to_update = nil)
- Exclude checks
Line is too long. [81/80] Open
if method_to_update && available_methods.include?(method_to_update)
- Exclude checks
Redundant curly braces around a hash parameter. Open
send(method_to_update, {attribute => parent.send(attribute)})
- Read upRead up
- Exclude checks
This cop checks for braces around the last parameter in a method call
if the last parameter is a hash.
It supports braces
, no_braces
and context_dependent
styles.
Example: EnforcedStyle: braces
# The `braces` style enforces braces around all method
# parameters that are hashes.
# bad
some_method(x, y, a: 1, b: 2)
# good
some_method(x, y, {a: 1, b: 2})
Example: EnforcedStyle: no_braces (default)
# The `no_braces` style checks that the last parameter doesn't
# have braces around it.
# bad
some_method(x, y, {a: 1, b: 2})
# good
some_method(x, y, a: 1, b: 2)
Example: EnforcedStyle: context_dependent
# The `context_dependent` style checks that the last parameter
# doesn't have braces around it, but requires braces if the
# second to last parameter is also a hash literal.
# bad
some_method(x, y, {a: 1, b: 2})
some_method(x, y, {a: 1, b: 2}, a: 1, b: 2)
# good
some_method(x, y, a: 1, b: 2)
some_method(x, y, {a: 1, b: 2}, {a: 1, b: 2})
Use a guard clause instead of wrapping the code inside a conditional expression. Open
if model_parent && current.class.method_defined?(:inheritable_configuration) && current.class.inheritable_configuration[:associations]
- Read upRead up
- Exclude checks
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
Line is too long. [101/80] Open
new_relation = relation_instance.duplicate! if relation_instance.respond_to?(:duplicate!)
- Exclude checks
Always use raise
to signal exceptions. Open
fail ArgumentError, 'Empty options' if options[:attributes].blank? && options[:associations].blank?
- Read upRead up
- Exclude checks
This cop checks for uses of fail
and raise
.
Example: EnforcedStyle: only_raise (default)
# The `only_raise` style enforces the sole use of `raise`.
# bad
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
# handle it
end
Kernel.fail
# good
begin
raise
rescue Exception
# handle it
end
def watch_out
raise
rescue Exception
# handle it
end
Kernel.raise
Example: EnforcedStyle: only_fail
# The `only_fail` style enforces the sole use of `fail`.
# bad
begin
raise
rescue Exception
# handle it
end
def watch_out
raise
rescue Exception
# handle it
end
Kernel.raise
# good
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
# handle it
end
Kernel.fail
Example: EnforcedStyle: semantic
# The `semantic` style enforces the use of `fail` to signal an
# exception, then will use `raise` to trigger an offense after
# it has been rescued.
# bad
begin
raise
rescue Exception
# handle it
end
def watch_out
# Error thrown
rescue Exception
fail
end
Kernel.fail
Kernel.raise
# good
begin
fail
rescue Exception
# handle it
end
def watch_out
fail
rescue Exception
raise 'Preferably with descriptive message'
end
explicit_receiver.fail
explicit_receiver.raise
Redundant self
detected. Open
self.inheritable_configuration.merge!(options)
- Read upRead up
- Exclude checks
This cop checks for redundant uses of self
.
The usage of self
is only needed when:
Sending a message to same object with zero arguments in presence of a method name clash with an argument or a local variable.
Calling an attribute writer to prevent an local variable assignment.
Note, with using explicit self you can only send messages with public or protected scope, you cannot send private messages this way.
Note we allow uses of self
with operators because it would be awkward
otherwise.
Example:
# bad
def foo(bar)
self.baz
end
# good
def foo(bar)
self.bar # Resolves name clash with the argument.
end
def foo
bar = 1
self.bar # Resolves name clash with the local variable.
end
def foo
%w[x y z].select do |bar|
self.bar == bar # Resolves name clash with argument of the block.
end
end