Class: RuboCop::Cop::Lint::FormatParameterMismatch

Inherits:
Cop
  • Object
show all
Defined in:
lib/rubocop/cop/lint/format_parameter_mismatch.rb

Overview

This lint sees if there is a mismatch between the number of expected fields for format/sprintf/#% and what is actually passed as arguments.

Examples:


format('A value: %s and another: %i', a_value)

Constant Summary collapse

MSG =

http://rubular.com/r/CvpbxkcTzy

'Number arguments (%i) to `%s` mismatches expected fields (%i).'
FIELD_REGEX =

rubocop:disable Metrics/LineLength

/(%(([\s#+-0\*])?(\d*)?(.\d+)?(\.)?[bBdiouxXeEfgGaAcps]|%))/
NAMED_FIELD_REGEX = 
/%\{[_a-zA-Z][_a-zA-Z]+\}/

Constants included from Util

Util::ASGN_NODES, Util::EQUALS_ASGN_NODES, Util::OPERATOR_METHODS, Util::PROC_NEW_NODE, Util::SHORTHAND_ASGN_NODES

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offense, all, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_type, #correct, #debug?, #display_cop_names?, #display_style_guide?, #excluded_file?, inherited, #initialize, #join_force?, lint?, match?, non_rails, qualified_cop_name, rails?, #reference_url, #relevant_file?, #style_guide_url

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, block_length, command?, comment_line?, const_name, directions, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, move_pos, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_comma, range_with_surrounding_space, source_range, strip_quotes, within_node?

Methods included from PathUtil

hidden?, issue_deprecation_warning, match_path?, relative_path

Constructor Details

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

Instance Method Details

#fields_regex ⇒ Object 



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# File 'lib/rubocop/cop/lint/format_parameter_mismatch.rb', line 21

def fields_regex
  FIELD_REGEX
end

#on_send(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/format_parameter_mismatch.rb', line 25

def on_send(node)
  add_offense(node, :selector) if offending_node?(node)
end