Class: RuboCop::Cop::Offense

Relationships & Source Files
Namespace Children
Classes: `PseudoSourceRange`
Super Chains via Extension / Inclusion / Inheritance
Instance Chain: self, Comparable
Inherits:	Object
Defined in:	lib/rubocop/cop/offense.rb

Overview

An offense represents a style violation detected by RuboCop.

Constant Summary

COMPARISON_ATTRIBUTES =
# File 'lib/rubocop/cop/offense.rb', line 10
```
%i[line column cop_name message severity].freeze
```
NO_LOCATION =
# File 'lib/rubocop/cop/offense.rb', line 87
```
PseudoSourceRange.new(1, 0, '', 0, 0).freeze
```

Class Method Summary

.new(severity, location, message, cop_name, status = :uncorrected, corrector = nil) ⇒ Offense constructor Internal use only

Instance Attribute Summary

#column readonly Internal use only
#cop_name ⇒ String readonly
#correctable? ⇒ Boolean readonly
#corrected? ⇒ Boolean readonly
#corrected_with_todo? ⇒ Boolean readonly
#corrector ⇒ Corrector | nil readonly
#disabled? ⇒ Boolean readonly
#line readonly Internal use only
#location ⇒ Parser::Source::Range readonly
#message ⇒ String readonly
#severity ⇒ RuboCop::Cop::Severity readonly
#status readonly Internal use only

Instance Method Summary

#<=>(other) ⇒ Integer

Returns -1, 0, or +1 if this offense is less than, equal to, or greater than other.
#==(other) ⇒ Boolean (also: #eql?)
#column_length Internal use only
#column_range Internal use only
#eql?(other)

Alias for #==.
#first_line Internal use only
#hash
#highlighted_area ⇒ Parser::Source::Range
#last_column Internal use only
#last_line Internal use only
#marshal_dump
#marshal_load(array)
#real_column Internal use only

Internally we use column number that start at 0, but when outputting column numbers, we want them to start at 1.
#source_line Internal use only
#to_s Internal use only

This is just for debugging purpose.

Constructor Details

.new(severity, location, message, cop_name, status = :uncorrected, corrector = nil) ⇒ `Offense`

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 90


def initialize(severity, location, message, cop_name, # rubocop:disable Metrics/ParameterLists
               status = :uncorrected, corrector = nil)
  @severity = RuboCop::Cop::Severity.new(severity)
  @location = location

  # Pre-compute the position eagerly because the offense is frozen and
  # `location.line` / `location.column` are expensive to compute; sorting
  # many offenses calls them repeatedly through `#<=>`.
  @line = location.line
  @column = location.column
  @message = message.freeze
  @cop_name = cop_name.freeze
  @status = status
  @corrector = corrector
  freeze
end

Instance Attribute Details

#column (readonly)

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 181


attr_reader :column

#cop_name ⇒ String (readonly)

Examples:

'Layout/LineLength'

Returns:

(String) —

the cop name as a String for which this offense is for.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 50


attr_reader :cop_name

#correctable? ⇒ `Boolean` (readonly)

Returns:

(Boolean) —

whether this offense can be automatically corrected via autocorrect. This includes todo comments, for example when requested with --disable-uncorrectable.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 124


def correctable?
  @status != :unsupported
end

#corrected? ⇒ `Boolean` (readonly)

Returns:

(Boolean) —

whether this offense is automatically corrected via autocorrect or a todo.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 135


def corrected?
  @status == :corrected || @status == :corrected_with_todo
end

#corrected_with_todo? ⇒ `Boolean` (readonly)

Returns:

(Boolean) —

whether this offense is automatically disabled via a todo.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 145


def corrected_with_todo?
  @status == :corrected_with_todo
end

#corrector ⇒ Corrector | `nil` (readonly)

Returns:

(Corrector | nil) —

the autocorrection for this offense, or nil when not available

[ GitHub ]

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


attr_reader :corrector

#disabled? ⇒ `Boolean` (readonly)

Returns:

(Boolean) —

whether this offense was locally disabled with a disable or todo where it occurred.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 156


def disabled?
  @status == :disabled || @status == :todo
end

#line (readonly)

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 178


attr_reader :line

#location ⇒ `Parser::Source::Range` (readonly)

Returns:

(Parser::Source::Range) —

the location where the violation is detected.

#message ⇒ String (readonly)

Examples:

'Line is too long. [90/80]'

Returns:

(String) —

human-readable message

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 39


attr_reader :message

#severity ⇒ RuboCop::Cop::Severity (readonly)

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 17


attr_reader :severity

#status (readonly)

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 53


attr_reader :status

Instance Method Details

#<=>(other) ⇒ `Integer`

Returns -1, 0, or +1 if this offense is less than, equal to, or greater than other.

Returns:

(Integer) —

comparison result

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 249


def <=>(other)
  COMPARISON_ATTRIBUTES.each do |attribute|
    result = public_send(attribute) <=> other.public_send(attribute)
    return result unless result.zero?
  end
  0
end

#==(other) ⇒ `Boolean` Also known as: #eql?

Returns:

(Boolean) —

returns true if two offenses contain same attributes

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 230


def ==(other)
  COMPARISON_ATTRIBUTES.all? do |attribute|
    public_send(attribute) == other.public_send(attribute)
  end
end

#column_length

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 189


def column_length
  if first_line == last_line
    column_range.count
  else
    source_line.length - column
  end
end

#column_range

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 213


def column_range
  location.column_range
end

#eql?(other)

Alias for #==.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 236


alias eql? ==

#first_line

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 198


def first_line
  location.first_line
end

#hash

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 238


def hash
  COMPARISON_ATTRIBUTES.map { |attribute| public_send(attribute) }.hash
end

#highlighted_area ⇒ `Parser::Source::Range`

Returns:

(Parser::Source::Range) —

the range of the code that is highlighted

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 164


def highlighted_area
  source_buffer = Parser::Source::Buffer.new(location.source_buffer.name, source: source_line)
  Parser::Source::Range.new(source_buffer, column, column + column_length)
end

#last_column

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 208


def last_column
  location.last_column
end

#last_line

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 203


def last_line
  location.last_line
end

#marshal_dump

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 107


def marshal_dump
  [@severity, @location, @message, @cop_name, @status]
end

#marshal_load(array)

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 111


def marshal_load(array)
  @severity, @location, @message, @cop_name, @status = array
  @line = @location.line
  @column = @location.column
end

#real_column

Internally we use column number that start at 0, but when outputting column numbers, we want them to start at 1. One reason is that editors, such as Emacs, expect this.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 222


def real_column
  column + 1
end

#source_line

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 184


def source_line
  location.source_line
end

#to_s

This is just for debugging purpose.

[ GitHub ]

# File 'lib/rubocop/cop/offense.rb', line 171


def to_s
  format('%<severity>s:%3<line>d:%3<column>d: %<message>s',
         severity: severity.code, line: line,
         column: real_column, message: message)
end

Class: RuboCop::Cop::Offense

Overview

Constant Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(severity, location, message, cop_name, status = :uncorrected, corrector = nil) ⇒ Offense

Instance Attribute Details

#column (readonly)

#cop_name ⇒ String (readonly)

#correctable? ⇒ Boolean (readonly)

#corrected? ⇒ Boolean (readonly)

#corrected_with_todo? ⇒ Boolean (readonly)

#corrector ⇒ Corrector | nil (readonly)

#disabled? ⇒ Boolean (readonly)

#line (readonly)

#location ⇒ Parser::Source::Range (readonly)

#message ⇒ String (readonly)

#severity ⇒ RuboCop::Cop::Severity (readonly)

#status (readonly)

Instance Method Details

#<=>(other) ⇒ Integer

#==(other) ⇒ Boolean Also known as: #eql?

#column_length

#column_range

#eql?(other)

#first_line

#hash

#highlighted_area ⇒ Parser::Source::Range

#last_column

#last_line

#marshal_dump

#marshal_load(array)

#real_column

#source_line

#to_s

.new(severity, location, message, cop_name, status = :uncorrected, corrector = nil) ⇒ `Offense`

#correctable? ⇒ `Boolean` (readonly)

#corrected? ⇒ `Boolean` (readonly)

#corrected_with_todo? ⇒ `Boolean` (readonly)

#corrector ⇒ Corrector | `nil` (readonly)

#disabled? ⇒ `Boolean` (readonly)

#location ⇒ `Parser::Source::Range` (readonly)

#<=>(other) ⇒ `Integer`

#==(other) ⇒ `Boolean` Also known as: #eql?

#highlighted_area ⇒ `Parser::Source::Range`