Class: SyntaxTree::CHAR

Inherits:
Object
  • Object
show all
Defined in:
lib/syntax_tree.rb

Overview

CHAR irepresents a single codepoint in the script encoding.

?a

In the example above, the CHAR node represents the string literal “a”. You can use control characters with this as well, as in ?C-a.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value:, location:, comments: []) ⇒ CHAR

Returns a new instance of CHAR.



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# File 'lib/syntax_tree.rb', line 500

def initialize(value:, location:, comments: [])
  @value = value
  @location = location
  @comments = comments
end

Instance Attribute Details

#comments ⇒ Object (readonly)

Array[ Comment | EmbDoc ]

the comments attached to this node



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# File 'lib/syntax_tree.rb', line 498

def comments
  @comments
end

#location ⇒ Object (readonly)

Location

the location of this node



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# File 'lib/syntax_tree.rb', line 495

def location
  @location
end

#value ⇒ Object (readonly)

String

the value of the character literal



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# File 'lib/syntax_tree.rb', line 492

def value
  @value
end

Instance Method Details

#child_nodes ⇒ Object 



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# File 'lib/syntax_tree.rb', line 506

def child_nodes
  []
end

#format(q) ⇒ Object 



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# File 'lib/syntax_tree.rb', line 510

def format(q)
  if value.length != 2
    q.text(value)
  else
    q.text(q.quote)
    q.text(value[1] == "\"" ? "\\\"" : value[1])
    q.text(q.quote)
  end
end

#pretty_print(q) ⇒ Object 



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# File 'lib/syntax_tree.rb', line 520

def pretty_print(q)
  q.group(2, "(", ")") do
    q.text("CHAR")

    q.breakable
    q.pp(value)

    q.pp(Comment::List.new(comments))
  end
end

#to_json(*opts) ⇒ Object 



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# File 'lib/syntax_tree.rb', line 531

def to_json(*opts)
  { type: :CHAR, value: value, loc: location, cmts: comments }.to_json(
    *opts
  )
end