Class: Parser::Source::Comment

Inherits:
Object
  • Object
show all
Defined in:
lib/parser/source/comment.rb

Overview

A comment in the source code.

Defined Under Namespace

Classes: Associator

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(range) ⇒ Comment

Returns a new instance of Comment.

Parameters:



67
68
69
70
71
72
 
# File 'lib/parser/source/comment.rb', line 67

def initialize(range)
  @location = Parser::Source::Map.new(range)
  @text     = range.source.freeze

  freeze
end

Instance Attribute Details

#location ⇒ Parser::Source::Range (readonly) Also known as: loc

Returns:



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
 
# File 'lib/parser/source/comment.rb', line 17

class Comment
  attr_reader  :text

  attr_reader  :location
  alias_method :loc, :location

  ##
  # Associate `comments` with `ast` nodes by their corresponding node.
  #
  # @param [Parser::AST::Node] ast
  # @param [Array<Comment>]    comments
  # @return [Hash<Parser::AST::Node, Array<Comment>>]
  # @see Parser::Source::Comment::Associator#associate
  # @deprecated Use {associate_locations}.
  #
  def self.associate(ast, comments)
    associator = Associator.new(ast, comments)
    associator.associate
  end

  ##
  # Associate `comments` with `ast` nodes by their location in the
  # source.
  #
  # @param [Parser::AST::Node] ast
  # @param [Array<Comment>]    comments
  # @return [Hash<Parser::Source::Map, Array<Comment>>]
  # @see Parser::Source::Comment::Associator#associate_locations
  #
  def self.associate_locations(ast, comments)
    associator = Associator.new(ast, comments)
    associator.associate_locations
  end

  ##
  # Associate `comments` with `ast` nodes using identity.
  #
  # @param [Parser::AST::Node] ast
  # @param [Array<Comment>]    comments
  # @return [Hash<Parser::Source::Node, Array<Comment>>]
  # @see Parser::Source::Comment::Associator#associate_by_identity
  #
  def self.associate_by_identity(ast, comments)
    associator = Associator.new(ast, comments)
    associator.associate_by_identity
  end

  ##
  # @param [Parser::Source::Range] range
  #
  def initialize(range)
    @location = Parser::Source::Map.new(range)
    @text     = range.source.freeze

    freeze
  end

  ##
  # Type of this comment.
  #
  #   * Inline comments correspond to `:inline`:
  #
  #         # whatever
  #
  #   * Block comments correspond to `:document`:
  #
  #         =begin
  #         hi i am a document
  #         =end
  #
  # @return [Symbol]
  #
  def type
    if text.start_with?("#".freeze)
      :inline
    elsif text.start_with?("=begin".freeze)
      :document
    end
  end

  ##
  # @see #type
  # @return [Boolean] true if this is an inline comment.
  #
  def inline?
    type == :inline
  end

  ##
  # @see #type
  # @return [Boolean] true if this is a block comment.
  #
  def document?
    type == :document
  end

  ##
  # Compares comments. Two comments are equal if they
  # correspond to the same source range.
  #
  # @param [Object] other
  # @return [Boolean]
  #
  def ==(other)
    other.is_a?(Source::Comment) &&
      @location == other.location
  end

  ##
  # @return [String] a human-readable representation of this comment
  #
  def inspect
    "#<Parser::Source::Comment #{@location.expression.to_s} #{text.inspect}>"
  end
end

#text ⇒ String (readonly)

Returns:

  • (String) 


17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
 
# File 'lib/parser/source/comment.rb', line 17

class Comment
  attr_reader  :text

  attr_reader  :location
  alias_method :loc, :location

  ##
  # Associate `comments` with `ast` nodes by their corresponding node.
  #
  # @param [Parser::AST::Node] ast
  # @param [Array<Comment>]    comments
  # @return [Hash<Parser::AST::Node, Array<Comment>>]
  # @see Parser::Source::Comment::Associator#associate
  # @deprecated Use {associate_locations}.
  #
  def self.associate(ast, comments)
    associator = Associator.new(ast, comments)
    associator.associate
  end

  ##
  # Associate `comments` with `ast` nodes by their location in the
  # source.
  #
  # @param [Parser::AST::Node] ast
  # @param [Array<Comment>]    comments
  # @return [Hash<Parser::Source::Map, Array<Comment>>]
  # @see Parser::Source::Comment::Associator#associate_locations
  #
  def self.associate_locations(ast, comments)
    associator = Associator.new(ast, comments)
    associator.associate_locations
  end

  ##
  # Associate `comments` with `ast` nodes using identity.
  #
  # @param [Parser::AST::Node] ast
  # @param [Array<Comment>]    comments
  # @return [Hash<Parser::Source::Node, Array<Comment>>]
  # @see Parser::Source::Comment::Associator#associate_by_identity
  #
  def self.associate_by_identity(ast, comments)
    associator = Associator.new(ast, comments)
    associator.associate_by_identity
  end

  ##
  # @param [Parser::Source::Range] range
  #
  def initialize(range)
    @location = Parser::Source::Map.new(range)
    @text     = range.source.freeze

    freeze
  end

  ##
  # Type of this comment.
  #
  #   * Inline comments correspond to `:inline`:
  #
  #         # whatever
  #
  #   * Block comments correspond to `:document`:
  #
  #         =begin
  #         hi i am a document
  #         =end
  #
  # @return [Symbol]
  #
  def type
    if text.start_with?("#".freeze)
      :inline
    elsif text.start_with?("=begin".freeze)
      :document
    end
  end

  ##
  # @see #type
  # @return [Boolean] true if this is an inline comment.
  #
  def inline?
    type == :inline
  end

  ##
  # @see #type
  # @return [Boolean] true if this is a block comment.
  #
  def document?
    type == :document
  end

  ##
  # Compares comments. Two comments are equal if they
  # correspond to the same source range.
  #
  # @param [Object] other
  # @return [Boolean]
  #
  def ==(other)
    other.is_a?(Source::Comment) &&
      @location == other.location
  end

  ##
  # @return [String] a human-readable representation of this comment
  #
  def inspect
    "#<Parser::Source::Comment #{@location.expression.to_s} #{text.inspect}>"
  end
end

Class Method Details

.associate(ast, comments) ⇒ Hash<Parser::AST::Node, Array<Comment>>

Deprecated.

Use associate_locations.

Associate ‘comments` with `ast` nodes by their corresponding node.

Parameters:

Returns:

See Also:



32
33
34
35
 
# File 'lib/parser/source/comment.rb', line 32

def self.associate(ast, comments)
  associator = Associator.new(ast, comments)
  associator.associate
end

.associate_by_identity(ast, comments) ⇒ Hash<Parser::Source::Node, Array<Comment>>

Associate ‘comments` with `ast` nodes using identity.

Parameters:

Returns:

  • (Hash<Parser::Source::Node, Array<Comment>>)

See Also:



59
60
61
62
 
# File 'lib/parser/source/comment.rb', line 59

def self.associate_by_identity(ast, comments)
  associator = Associator.new(ast, comments)
  associator.associate_by_identity
end

.associate_locations(ast, comments) ⇒ Hash<Parser::Source::Map, Array<Comment>>

Associate ‘comments` with `ast` nodes by their location in the source.

Parameters:

Returns:

See Also:



46
47
48
49
 
# File 'lib/parser/source/comment.rb', line 46

def self.associate_locations(ast, comments)
  associator = Associator.new(ast, comments)
  associator.associate_locations
end

Instance Method Details

#==(other) ⇒ Boolean

Compares comments. Two comments are equal if they correspond to the same source range.

Parameters:

  • other (Object)

Returns:

  • (Boolean) 


120
121
122
123
 
# File 'lib/parser/source/comment.rb', line 120

def ==(other)
  other.is_a?(Source::Comment) &&
    @location == other.location
end

#document? ⇒ Boolean

Returns true if this is a block comment.

Returns:

  • (Boolean) —

    true if this is a block comment.

See Also:



109
110
111
 
# File 'lib/parser/source/comment.rb', line 109

def document?
  type == :document
end

#inline? ⇒ Boolean

Returns true if this is an inline comment.

Returns:

  • (Boolean) —

    true if this is an inline comment.

See Also:



101
102
103
 
# File 'lib/parser/source/comment.rb', line 101

def inline?
  type == :inline
end

#inspect ⇒ String

Returns a human-readable representation of this comment.

Returns:

  • (String) —

    a human-readable representation of this comment



128
129
130
 
# File 'lib/parser/source/comment.rb', line 128

def inspect
  "#<Parser::Source::Comment #{@location.expression.to_s} #{text.inspect}>"
end

#type ⇒ Symbol

Type of this comment.

* Inline comments correspond to `:inline`:

      # whatever

* Block comments correspond to `:document`:

      =begin
      hi i am a document
      =end

Returns:

  • (Symbol) 


89
90
91
92
93
94
95
 
# File 'lib/parser/source/comment.rb', line 89

def type
  if text.start_with?("#".freeze)
    :inline
  elsif text.start_with?("=begin".freeze)
    :document
  end
end