Class: RuboCop::Cop::Style::ParenthesesAroundCondition

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Includes:
Parentheses, RuboCop::Cop::SafeAssignment
Defined in:
lib/rubocop/cop/style/parentheses_around_condition.rb

Overview

This cop checks for the presence of superfluous parentheses around the condition of if/unless/while/until.

`AllowSafeAssignment` option for safe assignment. By safe assignment we mean putting parentheses around an assignment to indicate “I know I'm using an assignment as a condition. It's not a mistake.”

Examples:

# bad
x += 1 while (x < 10)
foo unless (bar || baz)

if (x > 10)
elsif (x < 3)
end

# good
x += 1 while x < 10
foo unless bar || baz

if x > 10
elsif x < 3
end

AllowSafeAssignment: true (default)

# good
foo unless (bar = baz)

AllowSafeAssignment: false

# bad
foo unless (bar = baz)

AllowInMultilineConditions: false (default)

# bad
if (x > 10 &&
   y > 10)
end

# good
 if x > 10 &&
    y > 10
 end

AllowInMultilineConditions: true

# good
if (x > 10 &&
   y > 10)
end

Constant Summary

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

Methods inherited from Base

#add_global_offense, #add_offense, autocorrect_incompatible_with, badge, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, joining_forces, lint?, match?, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #parse, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version

Methods included from ExcludeLimit

#exclude_limit

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #correctable?, #disable_uncorrectable?, #safe_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

silence_warnings

Constructor Details

This class inherits a constructor from RuboCop::Cop::Base

Instance Method Details

#on_if(node) ⇒ Object


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# File 'lib/rubocop/cop/style/parentheses_around_condition.rb', line 61

def on_if(node)
  return if node.ternary?

  process_control_op(node)
end

#on_while(node) ⇒ Object Also known as: on_until


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# File 'lib/rubocop/cop/style/parentheses_around_condition.rb', line 67

def on_while(node)
  process_control_op(node)
end