Class: SyntaxTree::CHAR

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



176
177
178
179
180
 
# File 'lib/syntax_tree/node.rb', line 176

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



174
175
176
 
# File 'lib/syntax_tree/node.rb', line 174

def comments
  @comments
end

#location ⇒ Object (readonly)

Location

the location of this node



171
172
173
 
# File 'lib/syntax_tree/node.rb', line 171

def location
  @location
end

#value ⇒ Object (readonly)

String

the value of the character literal



168
169
170
 
# File 'lib/syntax_tree/node.rb', line 168

def value
  @value
end

Instance Method Details

#child_nodes ⇒ Object Also known as: deconstruct 



182
183
184
 
# File 'lib/syntax_tree/node.rb', line 182

def child_nodes
  []
end

#deconstruct_keys(keys) ⇒ Object 



188
189
190
 
# File 'lib/syntax_tree/node.rb', line 188

def deconstruct_keys(keys)
  { value: value, location: location, comments: comments }
end

#format(q) ⇒ Object 



192
193
194
195
196
197
198
199
200
 
# File 'lib/syntax_tree/node.rb', line 192

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 



202
203
204
205
206
207
208
209
210
211
 
# File 'lib/syntax_tree/node.rb', line 202

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 



213
214
215
216
217
 
# File 'lib/syntax_tree/node.rb', line 213

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