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Class: Prism::InterpolatedRegularExpressionNode

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Node
Instance Chain:
self, RegularExpressionOptions, Node
Inherits: Prism::Node
  • Object
Defined in: lib/prism/node.rb,
lib/prism/node_ext.rb,
lib/prism/parse_result/newlines.rb

Overview

Represents a regular expression literal that contains interpolation.

/foo #{bar} baz/
^^^^^^^^^^^^^^^^

Class Method Summary

Instance Attribute Summary

Node - Inherited

#location

A Location instance that represents the location of this node in the source.
#newline?

See additional method definition at file lib/prism/node.rb line 16.

Instance Method Summary

RegularExpressionOptions - Included

#options

Returns a numeric value that represents the flags that were used to create the regular expression.

Node - Inherited

#pretty_print

Similar to inspect, but respects the current level of indentation given by the pretty print object.
#slice

Slice the location of the node from the source.
#to_dot

Convert this node into a graphviz dot graph string.
#deprecated, #newline!, #set_newline_flag

Constructor Details

.new(flags, opening_loc, parts, closing_loc, location) ⇒ InterpolatedRegularExpressionNode

def initialize: (flags: Integer, opening_loc: Location, parts: Array, closing_loc: Location, location: Location) -> void

[ GitHub ] 

  


# File 'lib/prism/node.rb', line 9903



def initialize(flags, opening_loc, parts, closing_loc, location)
  @flags = flags
  @opening_loc = opening_loc
  @parts = parts
  @closing_loc = closing_loc
  @location = location
end


  







Class Method Details



  

    .type  
  



  

    

Similar to #type, this method returns a symbol that you can use for splitting on the type of the node without having to do a long === chain. Note that like #type, it will still be slower than using == for a single class, but should be faster in a case statement or an array comparison.



def self.type: () -> Symbol


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10055



def self.type
  :interpolated_regular_expression_node
end


  







Instance Attribute Details



  

    #ascii_8bit?  ⇒ Boolean  (readonly)
  



  

    

def ascii_8bit?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9981



def ascii_8bit?
  flags.anybits?(RegularExpressionFlags::ASCII_8BIT)
end


  








  

    #closing_loc   (readonly)
  



  

    

attr_reader closing_loc: Location


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9900



attr_reader :closing_loc


  








  

    #euc_jp?  ⇒ Boolean  (readonly)
  



  

    

def euc_jp?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9976



def euc_jp?
  flags.anybits?(RegularExpressionFlags::EUC_JP)
end


  








  

    #extended?  ⇒ Boolean  (readonly)
  



  

    

def extended?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9961



def extended?
  flags.anybits?(RegularExpressionFlags::EXTENDED)
end


  








  

    #flags   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9891



private attr_reader :flags


  








  

    #forced_binary_encoding?  ⇒ Boolean  (readonly)
  



  

    

def forced_binary_encoding?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10001



def forced_binary_encoding?
  flags.anybits?(RegularExpressionFlags::FORCED_BINARY_ENCODING)
end


  








  

    #forced_us_ascii_encoding?  ⇒ Boolean  (readonly)
  



  

    

def forced_us_ascii_encoding?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10006



def forced_us_ascii_encoding?
  flags.anybits?(RegularExpressionFlags::FORCED_US_ASCII_ENCODING)
end


  








  

    #forced_utf8_encoding?  ⇒ Boolean  (readonly)
  



  

    

def forced_utf8_encoding?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9996



def forced_utf8_encoding?
  flags.anybits?(RegularExpressionFlags::FORCED_UTF8_ENCODING)
end


  








  

    #ignore_case?  ⇒ Boolean  (readonly)
  



  

    

def ignore_case?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9956



def ignore_case?
  flags.anybits?(RegularExpressionFlags::IGNORE_CASE)
end


  








  

    #multi_line?  ⇒ Boolean  (readonly)
  



  

    

def multi_line?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9966



def multi_line?
  flags.anybits?(RegularExpressionFlags::MULTI_LINE)
end


  








  

    #once?  ⇒ Boolean  (readonly)
  



  

    

def once?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9971



def once?
  flags.anybits?(RegularExpressionFlags::ONCE)
end


  








  

    #opening_loc   (readonly)
  



  

    

attr_reader opening_loc: Location


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9894



attr_reader :opening_loc


  








  

    #parts   (readonly)
  



  

    

attr_reader parts: Array


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9897



attr_reader :parts


  








  

    #utf_8?  ⇒ Boolean  (readonly)
  



  

    

def utf_8?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9991



def utf_8?
  flags.anybits?(RegularExpressionFlags::UTF_8)
end


  








  

    #windows_31j?  ⇒ Boolean  (readonly)
  



  

    

def windows_31j?: () -> bool


  





  


  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9986



def windows_31j?
  flags.anybits?(RegularExpressionFlags::WINDOWS_31J)
end


  







Instance Method Details



  

    #accept(visitor)  
  



  

    

def accept: (visitor: Visitor) -> void


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9912



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


  








  

    #child_nodes  
    Also known as: #deconstruct
  



  

    

def child_nodes: () -> Array[nil | Node]


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9922



def child_nodes
  [*parts]
end


  








  

    #closing  
  



  

    

def closing: () -> String


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10016



def closing
  closing_loc.slice
end


  








  

    #comment_targets  
  



  

    

def comment_targets: () -> Array[Node | Location]


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9932



def comment_targets
  [opening_loc, *parts, closing_loc]
end


  








  

    #compact_child_nodes  
  



  

    

def compact_child_nodes: () -> Array


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9927



def compact_child_nodes
  [*parts]
end


  








  

    #copy(**params)  
  



  

    

def copy: (**params) -> InterpolatedRegularExpressionNode


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9937



def copy(**params)
  InterpolatedRegularExpressionNode.new(
    params.fetch(:flags) { flags },
    params.fetch(:opening_loc) { opening_loc },
    params.fetch(:parts) { parts },
    params.fetch(:closing_loc) { closing_loc },
    params.fetch(:location) { location },
  )
end


  








  

    #deconstruct  
  



  

    

Alias for #child_nodes.


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9948



alias deconstruct child_nodes


  








  

    #deconstruct_keys(keys)  
  



  

    

def deconstruct_keys: (keys: Array) -> Hash[Symbol, nil | Node | Array | String | Token | Array | Location]


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9951



def deconstruct_keys(keys)
  { flags: flags, opening_loc: opening_loc, parts: parts, closing_loc: closing_loc, location: location }
end


  








  

    #inspect(inspector = NodeInspector.new)  
  



  

    

def inspect(inspector: NodeInspector) -> String


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10021



def inspect(inspector = NodeInspector.new)
  inspector << inspector.header(self)
  flags = [("ignore_case" if ignore_case?), ("extended" if extended?), ("multi_line" if multi_line?), ("once" if once?), ("euc_jp" if euc_jp?), ("ascii_8bit" if ascii_8bit?), ("windows_31j" if windows_31j?), ("utf_8" if utf_8?), ("forced_utf8_encoding" if forced_utf8_encoding?), ("forced_binary_encoding" if forced_binary_encoding?), ("forced_us_ascii_encoding" if forced_us_ascii_encoding?)].compact
  inspector << "├── flags: #{flags.empty? ? "∅" : flags.join(", ")}\n"
  inspector << "├── opening_loc: #{inspector.location(opening_loc)}\n"
  inspector << "├── parts: #{inspector.list("#{inspector.prefix}│   ", parts)}"
  inspector << "└── closing_loc: #{inspector.location(closing_loc)}\n"
  inspector.to_str
end


  








  

    #newline!(lines)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/prism/parse_result/newlines.rb', line 127



def newline!(lines) # :nodoc:
  first = parts.first
  first.newline!(lines) if first
end


  








  

    #opening  
  



  

    

def opening: () -> String


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10011



def opening
  opening_loc.slice
end


  








  

    #set_newline_flag(newline_marked)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 9916



def set_newline_flag(newline_marked) # :nodoc:
  first = parts.first
  first.set_newline_flag(newline_marked) if first
end


  








  

    #type  
  



  

    

Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform. Usually this is done by calling [cls1, cls2].include?(node.class) or putting the node into a case statement and doing case node; when cls1; when cls2; end. Both of these approaches are relatively slow because of the constant lookups, method calls, and/or array allocations.



Instead, you can call #type, which will return to you a symbol that you can use for comparison. This is faster than the other approaches because it uses a single integer comparison, but also because if you’re on CRuby you can take advantage of the fact that case statements with all symbol keys will use a jump table.



def type: () -> Symbol


  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 10045



def type
  :interpolated_regular_expression_node
end