Class: RuboCop::Cop::Lint::AmbiguousRegexpLiteral

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/lint/ambiguous_regexp_literal.rb

Overview

Checks for ambiguous regexp literals in the first argument of a method invocation without parentheses.

Examples:


# bad

# This is interpreted as a method invocation with a regexp literal,
# but it could possibly be `/` method invocations.
# (i.e. `do_something./(pattern)./(i)`)
do_something /pattern/i

# good

# With parentheses, there's no ambiguity.
do_something(/pattern/i)

Constant Summary collapse

MSG = 
'Ambiguous regexp literal. Parenthesize the method arguments ' \
"if it's surely a regexp literal, or add a whitespace to the " \
'right of the `/` if it should be a division.'

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

#active_support_extensions_enabled?, #add_global_offense, #add_offense, #always_autocorrect?, autocorrect_incompatible_with, badge, #begin_investigation, callbacks_needed, #callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #contextual_autocorrect?, #cop_config, cop_name, #cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, #inspect, joining_forces, lint?, match?, #message, #offenses, #on_investigation_end, #on_other_file, #parse, #parser_engine, #ready, #relevant_file?, requires_gem, #string_literals_frozen_by_default?, 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?, #autocorrect_with_disable_uncorrectable?, #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_new_investigation ⇒ Object 



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# File 'lib/rubocop/cop/lint/ambiguous_regexp_literal.rb', line 29

def on_new_investigation
  processed_source.diagnostics.each do |diagnostic|
    if target_ruby_version >= 3.0
      next unless diagnostic.reason == :ambiguous_regexp
    else
      next unless diagnostic.reason == :ambiguous_literal
    end

    offense_node = find_offense_node_by(diagnostic)

    add_offense(diagnostic.location, severity: diagnostic.level) do |corrector|
      add_parentheses(offense_node, corrector)
    end
  end
end