Class: SyntaxTree::DynaSymbol

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

Overview

DynaSymbol represents a symbol literal that uses quotes to dynamically define its value.

:"#{variable}"

They can also be used as a special kind of dynamic hash key, as in:

{ "#{key}": value }

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(parts:, quote:, location:) ⇒ DynaSymbol

Returns a new instance of DynaSymbol.



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# File 'lib/syntax_tree/node.rb', line 4592

def initialize(parts:, quote:, location:)
  @parts = parts
  @quote = quote
  @location = location
  @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/node.rb', line 4590

def comments
  @comments
end

#parts ⇒ Object (readonly)

Array[ StringDVar | StringEmbExpr | TStringContent ]

the parts of the

dynamic symbol



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# File 'lib/syntax_tree/node.rb', line 4584

def parts
  @parts
end

#quote ⇒ Object (readonly)

String

the quote used to delimit the dynamic symbol



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# File 'lib/syntax_tree/node.rb', line 4587

def quote
  @quote
end

Instance Method Details

#===(other) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 4654

def ===(other)
  other.is_a?(DynaSymbol) && ArrayMatch.call(parts, other.parts) &&
    quote === other.quote
end

#accept(visitor) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 4599

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

#child_nodes ⇒ Object Also known as: deconstruct 



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# File 'lib/syntax_tree/node.rb', line 4603

def child_nodes
  parts
end

#copy(parts: nil, quote: nil, location: nil) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 4607

def copy(parts: nil, quote: nil, location: nil)
  node =
    DynaSymbol.new(
      parts: parts || self.parts,
      quote: quote || self.quote,
      location: location || self.location
    )

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

#deconstruct_keys(_keys) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 4621

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

#format(q) ⇒ Object 



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# File 'lib/syntax_tree/node.rb', line 4625

def format(q)
  opening_quote, closing_quote = quotes(q)

  q.text(opening_quote)
  q.group do
    parts.each do |part|
      if part.is_a?(TStringContent)
        value = Quotes.normalize(part.value, closing_quote)
        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")
      else
        q.format(part)
      end
    end
  end
  q.text(closing_quote)
end