Class: SyntaxTree::EndContent

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

Overview

EndContent represents the use of __END__ syntax, which allows individual scripts to keep content after the main ruby code that can be read through the DATA constant.

puts DATA.read

__END__

Instance Attribute Summary collapse

Attributes inherited from Node

#location

Instance Method Summary collapse

Methods inherited from Node

#construct_keys, #pretty_print, #to_json

Constructor Details

#initialize(value:, location:) ⇒ EndContent

Returns a new instance of EndContent.



383
384
385
386
387
 
# File 'lib/syntax_tree/node.rb', line 383

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

Instance Attribute Details

#comments ⇒ Object (readonly)

Array[ Comment | EmbDoc ]

the comments attached to this node



381
382
383
 
# File 'lib/syntax_tree/node.rb', line 381

def comments
  @comments
end

#value ⇒ Object (readonly)

String

the content after the script



378
379
380
 
# File 'lib/syntax_tree/node.rb', line 378

def value
  @value
end

Instance Method Details

#===(other) ⇒ Object 



432
433
434
 
# File 'lib/syntax_tree/node.rb', line 432

def ===(other)
  other.is_a?(EndContent) && value === other.value
end

#accept(visitor) ⇒ Object 



389
390
391
 
# File 'lib/syntax_tree/node.rb', line 389

def accept(visitor)
  visitor.visit___end__(self)
end

#child_nodes ⇒ Object Also known as: deconstruct 



393
394
395
 
# File 'lib/syntax_tree/node.rb', line 393

def child_nodes
  []
end

#copy(value: nil, location: nil) ⇒ Object 



397
398
399
400
401
402
403
404
405
406
 
# File 'lib/syntax_tree/node.rb', line 397

def copy(value: nil, location: nil)
  node =
    EndContent.new(
      value: value || self.value,
      location: location || self.location
    )

  node.comments.concat(comments.map(&:copy))
  node
end

#deconstruct_keys(_keys) ⇒ Object 



410
411
412
 
# File 'lib/syntax_tree/node.rb', line 410

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

#format(q) ⇒ Object 



414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
 
# File 'lib/syntax_tree/node.rb', line 414

def format(q)
  q.text("__END__")
  q.breakable_force

  first = true
  value.each_line(chomp: true) do |line|
    if first
      first = false
    else
      q.breakable_return
    end

    q.text(line)
  end

  q.breakable_return if value.end_with?("\n")
end