Class: Prism::Translation::Ripper

Inherits:
Compiler show all
Defined in:
lib/prism/translation/ripper.rb,
lib/prism/translation/ripper/sexp.rb,
lib/prism/translation/ripper/lexer.rb,
lib/prism/translation/ripper/filter.rb

Overview

This class provides a compatibility layer between prism and Ripper. It functions by parsing the entire tree first and then walking it and executing each of the Ripper callbacks as it goes. To use this class, you treat Prism::Translation::Ripper effectively as you would treat the Ripper class.

Note that this class will serve the most common use cases, but Ripper’s API is extensive and undocumented. It relies on reporting the state of the parser at any given time. We do our best to replicate that here, but because it is a different architecture it is not possible to perfectly replicate the behavior of Ripper.

The main known difference is that we may omit dispatching some events in some cases. This impacts the following events:

  • on_assign_error

  • on_comma

  • on_ignored_nl

  • on_ignored_sp

  • on_kw

  • on_label_end

  • on_lbrace

  • on_lbracket

  • on_lparen

  • on_nl

  • on_op

  • on_operator_ambiguous

  • on_rbrace

  • on_rbracket

  • on_rparen

  • on_semicolon

  • on_sp

  • on_symbeg

  • on_tstring_beg

  • on_tstring_end

Direct Known Subclasses

Lexer, SexpBuilder

Defined Under Namespace

Classes: Filter, Lexer, SexpBuilder, SexpBuilderPP

Constant Summary collapse

PARSER_EVENT_TABLE =

This contains a table of all of the parser events and their corresponding arity.

{
  BEGIN: 1,
  END: 1,
  alias: 2,
  alias_error: 2,
  aref: 2,
  aref_field: 2,
  arg_ambiguous: 1,
  arg_paren: 1,
  args_add: 2,
  args_add_block: 2,
  args_add_star: 2,
  args_forward: 0,
  args_new: 0,
  array: 1,
  aryptn: 4,
  assign: 2,
  assign_error: 2,
  assoc_new: 2,
  assoc_splat: 1,
  assoclist_from_args: 1,
  bare_assoc_hash: 1,
  begin: 1,
  binary: 3,
  block_var: 2,
  blockarg: 1,
  bodystmt: 4,
  brace_block: 2,
  break: 1,
  call: 3,
  case: 2,
  class: 3,
  class_name_error: 2,
  command: 2,
  command_call: 4,
  const_path_field: 2,
  const_path_ref: 2,
  const_ref: 1,
  def: 3,
  defined: 1,
  defs: 5,
  do_block: 2,
  dot2: 2,
  dot3: 2,
  dyna_symbol: 1,
  else: 1,
  elsif: 3,
  ensure: 1,
  excessed_comma: 0,
  fcall: 1,
  field: 3,
  fndptn: 4,
  for: 3,
  hash: 1,
  heredoc_dedent: 2,
  hshptn: 3,
  if: 3,
  if_mod: 2,
  ifop: 3,
  in: 3,
  kwrest_param: 1,
  lambda: 2,
  magic_comment: 2,
  massign: 2,
  method_add_arg: 2,
  method_add_block: 2,
  mlhs_add: 2,
  mlhs_add_post: 2,
  mlhs_add_star: 2,
  mlhs_new: 0,
  mlhs_paren: 1,
  module: 2,
  mrhs_add: 2,
  mrhs_add_star: 2,
  mrhs_new: 0,
  mrhs_new_from_args: 1,
  next: 1,
  nokw_param: 1,
  opassign: 3,
  operator_ambiguous: 2,
  param_error: 2,
  params: 7,
  paren: 1,
  parse_error: 1,
  program: 1,
  qsymbols_add: 2,
  qsymbols_new: 0,
  qwords_add: 2,
  qwords_new: 0,
  redo: 0,
  regexp_add: 2,
  regexp_literal: 2,
  regexp_new: 0,
  rescue: 4,
  rescue_mod: 2,
  rest_param: 1,
  retry: 0,
  return: 1,
  return0: 0,
  sclass: 2,
  stmts_add: 2,
  stmts_new: 0,
  string_add: 2,
  string_concat: 2,
  string_content: 0,
  string_dvar: 1,
  string_embexpr: 1,
  string_literal: 1,
  super: 1,
  symbol: 1,
  symbol_literal: 1,
  symbols_add: 2,
  symbols_new: 0,
  top_const_field: 1,
  top_const_ref: 1,
  unary: 2,
  undef: 1,
  unless: 3,
  unless_mod: 2,
  until: 2,
  until_mod: 2,
  var_alias: 2,
  var_field: 1,
  var_ref: 1,
  vcall: 1,
  void_stmt: 0,
  when: 3,
  while: 2,
  while_mod: 2,
  word_add: 2,
  word_new: 0,
  words_add: 2,
  words_new: 0,
  xstring_add: 2,
  xstring_literal: 1,
  xstring_new: 0,
  yield: 1,
  yield0: 0,
  zsuper: 0
}
SCANNER_EVENT_TABLE =

This contains a table of all of the scanner events and their corresponding arity.

{
  CHAR: 1,
  __end__: 1,
  backref: 1,
  backtick: 1,
  comma: 1,
  comment: 1,
  const: 1,
  cvar: 1,
  embdoc: 1,
  embdoc_beg: 1,
  embdoc_end: 1,
  embexpr_beg: 1,
  embexpr_end: 1,
  embvar: 1,
  float: 1,
  gvar: 1,
  heredoc_beg: 1,
  heredoc_end: 1,
  ident: 1,
  ignored_nl: 1,
  imaginary: 1,
  int: 1,
  ivar: 1,
  kw: 1,
  label: 1,
  label_end: 1,
  lbrace: 1,
  lbracket: 1,
  lparen: 1,
  nl: 1,
  op: 1,
  period: 1,
  qsymbols_beg: 1,
  qwords_beg: 1,
  rational: 1,
  rbrace: 1,
  rbracket: 1,
  regexp_beg: 1,
  regexp_end: 1,
  rparen: 1,
  semicolon: 1,
  sp: 1,
  symbeg: 1,
  symbols_beg: 1,
  tlambda: 1,
  tlambeg: 1,
  tstring_beg: 1,
  tstring_content: 1,
  tstring_end: 1,
  words_beg: 1,
  words_sep: 1,
  ignored_sp: 1
}
PARSER_EVENTS =

This array contains name of parser events.

PARSER_EVENT_TABLE.keys
SCANNER_EVENTS =

This array contains name of scanner events.

SCANNER_EVENT_TABLE.keys
EVENTS =

This array contains name of all ripper events.

PARSER_EVENTS + SCANNER_EVENTS
EXPR_NONE = 
0
EXPR_VALUE = 
EXPR_BEG
EXPR_BEG_ANY = 
EXPR_BEG | EXPR_MID | EXPR_CLASS
EXPR_ARG_ANY = 
EXPR_ARG | EXPR_CMDARG
EXPR_END_ANY = 
EXPR_END | EXPR_ENDARG | EXPR_ENDFN

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from BasicVisitor

#visit, #visit_all, #visit_child_nodes

Constructor Details

#initialize(source, filename = "(ripper)", lineno = 1) ⇒ Ripper

Create a new Translation::Ripper object with the given source.



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# File 'lib/prism/translation/ripper.rb', line 482

def initialize(source, filename = "(ripper)", lineno = 1)
  @source = source
  @filename = filename
  @lineno = lineno
  @column = 0
  @result = nil
end

Instance Attribute Details

#column ⇒ Object (readonly)

The current column number of the parser.



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# File 'lib/prism/translation/ripper.rb', line 479

def column
  @column
end

#filename ⇒ Object (readonly)

The filename of the source being parsed.



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# File 'lib/prism/translation/ripper.rb', line 473

def filename
  @filename
end

#lineno ⇒ Object (readonly)

The current line number of the parser.



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# File 'lib/prism/translation/ripper.rb', line 476

def lineno
  @lineno
end

#source ⇒ Object (readonly)

The source that is being parsed.



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# File 'lib/prism/translation/ripper.rb', line 470

def source
  @source
end

Class Method Details

.lex(src, filename = "-", lineno = 1, raise_errors: false) ⇒ Object

Tokenizes the Ruby program and returns an array of an array, which is formatted like [[lineno, column], type, token, state]. The filename argument is mostly ignored. By default, this method does not handle syntax errors in src, use the raise_errors keyword to raise a SyntaxError for an error in src.

require "ripper"
require "pp"

pp Ripper.lex("def m(a) nil end")
#=> [[[1,  0], :on_kw,     "def", FNAME    ],
     [[1,  3], :on_sp,     " ",   FNAME    ],
     [[1,  4], :on_ident,  "m",   ENDFN    ],
     [[1,  5], :on_lparen, "(",   BEG|LABEL],
     [[1,  6], :on_ident,  "a",   ARG      ],
     [[1,  7], :on_rparen, ")",   ENDFN    ],
     [[1,  8], :on_sp,     " ",   BEG      ],
     [[1,  9], :on_kw,     "nil", END      ],
     [[1, 12], :on_sp,     " ",   END      ],
     [[1, 13], :on_kw,     "end", END      ]]



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# File 'lib/prism/translation/ripper.rb', line 71

def self.lex(src, filename = "-", lineno = 1, raise_errors: false)
  result = Prism.lex_compat(src, filepath: filename, line: lineno, version: "current")

  if result.failure? && raise_errors
    raise SyntaxError, result.errors.first.message
  else
    result.value
  end
end

.lex_state_name(state) ⇒ Object 



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# File 'lib/prism/translation/ripper.rb', line 463

def self.lex_state_name(state)
  LEX_STATE_NAMES.filter_map { |flag, name| name if state & flag != 0  }.join("|")
end

.parse(src, filename = "(ripper)", lineno = 1) ⇒ Object

Parses the given Ruby program read from src. src must be a String or an IO or a object with a #gets method.



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# File 'lib/prism/translation/ripper.rb', line 45

def self.parse(src, filename = "(ripper)", lineno = 1)
  new(src, filename, lineno).parse
end

.sexp(src, filename = "-", lineno = 1, raise_errors: false) ⇒ Object

Parses src and create S-exp tree. Returns more readable tree rather than Ripper.sexp_raw. This method is mainly for developer use. The filename argument is mostly ignored. By default, this method does not handle syntax errors in src, returning nil in such cases. Use the raise_errors keyword to raise a SyntaxError for an error in src.

require "ripper"
require "pp"

pp Ripper.sexp("def m(a) nil end")
  #=> [:program,
       [[:def,
        [:@ident, "m", [1, 4]],
        [:paren, [:params, [[:@ident, "a", [1, 6]]], nil, nil, nil, nil, nil, nil]],
        [:bodystmt, [[:var_ref, [:@kw, "nil", [1, 9]]]], nil, nil, nil]]]]



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# File 'lib/prism/translation/ripper.rb', line 393

def self.sexp(src, filename = "-", lineno = 1, raise_errors: false)
  builder = SexpBuilderPP.new(src, filename, lineno)
  sexp = builder.parse
  if builder.error?
    if raise_errors
      raise SyntaxError, builder.error
    end
  else
    sexp
  end
end

.sexp_raw(src, filename = "-", lineno = 1, raise_errors: false) ⇒ Object

Parses src and create S-exp tree. This method is mainly for developer use. The filename argument is mostly ignored. By default, this method does not handle syntax errors in src, returning nil in such cases. Use the raise_errors keyword to raise a SyntaxError for an error in src.

require "ripper"
require "pp"

pp Ripper.sexp_raw("def m(a) nil end")
  #=> [:program,
       [:stmts_add,
        [:stmts_new],
        [:def,
         [:@ident, "m", [1, 4]],
         [:paren, [:params, [[:@ident, "a", [1, 6]]], nil, nil, nil]],
         [:bodystmt,
          [:stmts_add, [:stmts_new], [:var_ref, [:@kw, "nil", [1, 9]]]],
          nil,
          nil,
          nil]]]]



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# File 'lib/prism/translation/ripper.rb', line 428

def self.sexp_raw(src, filename = "-", lineno = 1, raise_errors: false)
  builder = SexpBuilder.new(src, filename, lineno)
  sexp = builder.parse
  if builder.error?
    if raise_errors
      raise SyntaxError, builder.error
    end
  else
    sexp
  end
end

.tokenize ⇒ Object

Tokenizes the Ruby program and returns an array of strings. The filename and lineno arguments are mostly ignored, since the return value is just the tokenized input. By default, this method does not handle syntax errors in src, use the raise_errors keyword to raise a SyntaxError for an error in src.

p Ripper.tokenize("def m(a) nil end")
   # => ["def", " ", "m", "(", "a", ")", " ", "nil", " ", "end"]



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# File 'lib/prism/translation/ripper.rb', line 90

def self.tokenize(...)
  lex(...).map(&:value)
end

Instance Method Details

#error? ⇒ Boolean

True if the parser encountered an error during parsing.

Returns:

  • (Boolean) 


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# File 'lib/prism/translation/ripper.rb', line 495

def error?
  result.failure?
end

#parse ⇒ Object

Parse the source and return the result.



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# File 'lib/prism/translation/ripper.rb', line 500

def parse
  result.comments.each do |comment|
    location = comment.location
    bounds(location)

    if comment.is_a?(InlineComment)
      on_comment(comment.slice)
    else
      offset = location.start_offset
      lines = comment.slice.lines

      lines.each_with_index do |line, index|
        bounds(location.copy(start_offset: offset))

        if index == 0
          on_embdoc_beg(line)
        elsif index == lines.size - 1
          on_embdoc_end(line)
        else
          on_embdoc(line)
        end

        offset += line.bytesize
      end
    end
  end

  result.magic_comments.each do |magic_comment|
    on_magic_comment(magic_comment.key, magic_comment.value)
  end

  unless result.data_loc.nil?
    on___end__(result.data_loc.slice.each_line.first)
  end

  result.warnings.each do |warning|
    bounds(warning.location)

    if warning.level == :default
      warning(warning.message)
    else
      case warning.type
      when :ambiguous_first_argument_plus
        on_arg_ambiguous("+")
      when :ambiguous_first_argument_minus
        on_arg_ambiguous("-")
      when :ambiguous_slash
        on_arg_ambiguous("/")
      else
        warn(warning.message)
      end
    end
  end

  if error?
    result.errors.each do |error|
      location = error.location
      bounds(location)

      case error.type
      when :alias_argument
        on_alias_error("can't make alias for the number variables", location.slice)
      when :argument_formal_class
        on_param_error("formal argument cannot be a class variable", location.slice)
      when :argument_format_constant
        on_param_error("formal argument cannot be a constant", location.slice)
      when :argument_formal_global
        on_param_error("formal argument cannot be a global variable", location.slice)
      when :argument_formal_ivar
        on_param_error("formal argument cannot be an instance variable", location.slice)
      when :class_name, :module_name
        on_class_name_error("class/module name must be CONSTANT", location.slice)
      else
        on_parse_error(error.message)
      end
    end

    nil
  else
    result.value.accept(self)
  end
end

#visit_alias_global_variable_node(node) ⇒ Object

alias $foo $bar ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 599

def visit_alias_global_variable_node(node)
  new_name = visit_alias_global_variable_node_value(node.new_name)
  old_name = visit_alias_global_variable_node_value(node.old_name)

  bounds(node.location)
  on_var_alias(new_name, old_name)
end

#visit_alias_method_node(node) ⇒ Object

alias foo bar ^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 589

def visit_alias_method_node(node)
  new_name = visit(node.new_name)
  old_name = visit(node.old_name)

  bounds(node.location)
  on_alias(new_name, old_name)
end

#visit_alternation_pattern_node(node) ⇒ Object

foo => bar | baz

^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 623

def visit_alternation_pattern_node(node)
  left = visit_pattern_node(node.left)
  right = visit_pattern_node(node.right)

  bounds(node.location)
  on_binary(left, :|, right)
end

#visit_and_node(node) ⇒ Object

a and b ^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 643

def visit_and_node(node)
  left = visit(node.left)
  right = visit(node.right)

  bounds(node.location)
  on_binary(left, node.operator.to_sym, right)
end

#visit_arguments_node(node) ⇒ Object

foo(bar)

^^^



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# File 'lib/prism/translation/ripper.rb', line 834

def visit_arguments_node(node)
  arguments, _, _ = visit_call_node_arguments(node, nil, false)
  arguments
end

#visit_array_node(node) ⇒ Object

^^



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# File 'lib/prism/translation/ripper.rb', line 653

def visit_array_node(node)
  case (opening = node.opening)
  when /^%w/
    opening_loc = node.opening_loc
    bounds(opening_loc)
    on_qwords_beg(opening)

    elements = on_qwords_new
    previous = nil

    node.elements.each do |element|
      visit_words_sep(opening_loc, previous, element)

      bounds(element.location)
      elements = on_qwords_add(elements, on_tstring_content(element.content))

      previous = element
    end

    bounds(node.closing_loc)
    on_tstring_end(node.closing)
  when /^%i/
    opening_loc = node.opening_loc
    bounds(opening_loc)
    on_qsymbols_beg(opening)

    elements = on_qsymbols_new
    previous = nil

    node.elements.each do |element|
      visit_words_sep(opening_loc, previous, element)

      bounds(element.location)
      elements = on_qsymbols_add(elements, on_tstring_content(element.value))

      previous = element
    end

    bounds(node.closing_loc)
    on_tstring_end(node.closing)
  when /^%W/
    opening_loc = node.opening_loc
    bounds(opening_loc)
    on_words_beg(opening)

    elements = on_words_new
    previous = nil

    node.elements.each do |element|
      visit_words_sep(opening_loc, previous, element)

      bounds(element.location)
      elements =
        on_words_add(
          elements,
          if element.is_a?(StringNode)
            on_word_add(on_word_new, on_tstring_content(element.content))
          else
            element.parts.inject(on_word_new) do |word, part|
              word_part =
                if part.is_a?(StringNode)
                  bounds(part.location)
                  on_tstring_content(part.content)
                else
                  visit(part)
                end

              on_word_add(word, word_part)
            end
          end
        )

      previous = element
    end

    bounds(node.closing_loc)
    on_tstring_end(node.closing)
  when /^%I/
    opening_loc = node.opening_loc
    bounds(opening_loc)
    on_symbols_beg(opening)

    elements = on_symbols_new
    previous = nil

    node.elements.each do |element|
      visit_words_sep(opening_loc, previous, element)

      bounds(element.location)
      elements =
        on_symbols_add(
          elements,
          if element.is_a?(SymbolNode)
            on_word_add(on_word_new, on_tstring_content(element.value))
          else
            element.parts.inject(on_word_new) do |word, part|
              word_part =
                if part.is_a?(StringNode)
                  bounds(part.location)
                  on_tstring_content(part.content)
                else
                  visit(part)
                end

              on_word_add(word, word_part)
            end
          end
        )

      previous = element
    end

    bounds(node.closing_loc)
    on_tstring_end(node.closing)
  else
    bounds(node.opening_loc)
    on_lbracket(opening)

    elements = visit_arguments(node.elements) unless node.elements.empty?

    bounds(node.closing_loc)
    on_rbracket(node.closing)
  end

  bounds(node.location)
  on_array(elements)
end

#visit_array_pattern_node(node) ⇒ Object

foo => [bar]

^^^^^



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# File 'lib/prism/translation/ripper.rb', line 813

def visit_array_pattern_node(node)
  constant = visit(node.constant)
  requireds = visit_all(node.requireds) if node.requireds.any?
  rest =
    if (rest_node = node.rest).is_a?(SplatNode)
      if rest_node.expression.nil?
        bounds(rest_node.location)
        on_var_field(nil)
      else
        visit(rest_node.expression)
      end
    end

  posts = visit_all(node.posts) if node.posts.any?

  bounds(node.location)
  on_aryptn(constant, requireds, rest, posts)
end

#visit_assoc_node(node) ⇒ Object

{ a: 1 }

^^^^



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# File 'lib/prism/translation/ripper.rb', line 841

def visit_assoc_node(node)
  key = visit(node.key)
  value = visit(node.value)

  bounds(node.location)
  on_assoc_new(key, value)
end

#visit_assoc_splat_node(node) ⇒ Object

def foo(**); bar(**); end

^^

{ **foo }

^^^^^



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# File 'lib/prism/translation/ripper.rb', line 854

def visit_assoc_splat_node(node)
  value = visit(node.value)

  bounds(node.location)
  on_assoc_splat(value)
end

#visit_back_reference_read_node(node) ⇒ Object

$+ ^^



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# File 'lib/prism/translation/ripper.rb', line 863

def visit_back_reference_read_node(node)
  bounds(node.location)
  on_backref(node.slice)
end

#visit_begin_node(node) ⇒ Object

begin end ^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 870

def visit_begin_node(node)
  clauses = visit_begin_node_clauses(node.begin_keyword_loc, node, false)

  bounds(node.location)
  on_begin(clauses)
end

#visit_block_argument_node(node) ⇒ Object

foo(&bar)

^^^^



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# File 'lib/prism/translation/ripper.rb', line 934

def visit_block_argument_node(node)
  visit(node.expression)
end

#visit_block_local_variable_node(node) ⇒ Object

foo { |; bar| }

^^^



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# File 'lib/prism/translation/ripper.rb', line 940

def visit_block_local_variable_node(node)
  bounds(node.location)
  on_ident(node.name.to_s)
end

#visit_block_node(node) ⇒ Object

Visit a BlockNode.



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# File 'lib/prism/translation/ripper.rb', line 946

def visit_block_node(node)
  braces = node.opening == "{"
  parameters = visit(node.parameters)

  body =
    case node.body
    when nil
      bounds(node.location)
      stmts = on_stmts_add(on_stmts_new, on_void_stmt)

      bounds(node.location)
      braces ? stmts : on_bodystmt(stmts, nil, nil, nil)
    when StatementsNode
      stmts = node.body.body
      stmts.unshift(nil) if void_stmt?(node.parameters&.location || node.opening_loc, node.body.location, false)
      stmts = visit_statements_node_body(stmts)

      bounds(node.body.location)
      braces ? stmts : on_bodystmt(stmts, nil, nil, nil)
    when BeginNode
      visit_body_node(node.parameters&.location || node.opening_loc, node.body)
    else
      raise
    end

  if braces
    bounds(node.location)
    on_brace_block(parameters, body)
  else
    bounds(node.location)
    on_do_block(parameters, body)
  end
end

#visit_block_parameter_node(node) ⇒ Object

def foo(&bar); end

^^^^



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# File 'lib/prism/translation/ripper.rb', line 982

def visit_block_parameter_node(node)
  if node.name_loc.nil?
    bounds(node.location)
    on_blockarg(nil)
  else
    bounds(node.name_loc)
    name = visit_token(node.name.to_s)

    bounds(node.location)
    on_blockarg(name)
  end
end

#visit_block_parameters_node(node) ⇒ Object

A block’s parameters.



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# File 'lib/prism/translation/ripper.rb', line 996

def visit_block_parameters_node(node)
  parameters =
    if node.parameters.nil?
      on_params(nil, nil, nil, nil, nil, nil, nil)
    else
      visit(node.parameters)
    end

  locals =
    if node.locals.any?
      visit_all(node.locals)
    else
      false
    end

  bounds(node.location)
  on_block_var(parameters, locals)
end

#visit_break_node(node) ⇒ Object

break ^^^^^

break foo ^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1020

def visit_break_node(node)
  if node.arguments.nil?
    bounds(node.location)
    on_break(on_args_new)
  else
    arguments = visit(node.arguments)

    bounds(node.location)
    on_break(arguments)
  end
end

#visit_call_and_write_node(node) ⇒ Object

foo.bar &&= baz ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1251

def visit_call_and_write_node(node)
  receiver = visit(node.receiver)

  bounds(node.call_operator_loc)
  call_operator = visit_token(node.call_operator)

  bounds(node.message_loc)
  message = visit_token(node.message)

  bounds(node.location)
  target = on_field(receiver, call_operator, message)

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_call_node(node) ⇒ Object

foo ^^^

foo.bar ^^^^^^^

foo.bar() {} ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1040

def visit_call_node(node)
  if node.call_operator_loc.nil?
    case node.name
    when :[]
      receiver = visit(node.receiver)
      arguments, block, has_ripper_block = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc))

      bounds(node.location)
      call = on_aref(receiver, arguments)

      if has_ripper_block
        bounds(node.location)
        on_method_add_block(call, block)
      else
        call
      end
    when :[]=
      receiver = visit(node.receiver)

      *arguments, last_argument = node.arguments.arguments
      arguments << node.block if !node.block.nil?

      arguments =
        if arguments.any?
          args = visit_arguments(arguments)

          if !node.block.nil?
            args
          else
            bounds(arguments.first.location)
            on_args_add_block(args, false)
          end
        end

      bounds(node.location)
      call = on_aref_field(receiver, arguments)
      value = visit_write_value(last_argument)

      bounds(last_argument.location)
      on_assign(call, value)
    when :-@, :+@, :~
      receiver = visit(node.receiver)

      bounds(node.location)
      on_unary(node.name, receiver)
    when :!
      if node.message == "not"
        receiver =
          if !node.receiver.is_a?(ParenthesesNode) || !node.receiver.body.nil?
            visit(node.receiver)
          end

        bounds(node.location)
        on_unary(:not, receiver)
      else
        receiver = visit(node.receiver)

        bounds(node.location)
        on_unary(:!, receiver)
      end
    when *BINARY_OPERATORS
      receiver = visit(node.receiver)
      value = visit(node.arguments.arguments.first)

      bounds(node.location)
      on_binary(receiver, node.name, value)
    else
      bounds(node.message_loc)
      message = visit_token(node.message, false)

      if node.variable_call?
        on_vcall(message)
      else
        arguments, block, has_ripper_block = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc || node.location))
        call =
          if node.opening_loc.nil? && get_arguments_and_block(node.arguments, node.block).first.any?
            bounds(node.location)
            on_command(message, arguments)
          elsif !node.opening_loc.nil?
            bounds(node.location)
            on_method_add_arg(on_fcall(message), on_arg_paren(arguments))
          else
            bounds(node.location)
            on_method_add_arg(on_fcall(message), on_args_new)
          end

        if has_ripper_block
          bounds(node.block.location)
          on_method_add_block(call, block)
        else
          call
        end
      end
    end
  else
    receiver = visit(node.receiver)

    bounds(node.call_operator_loc)
    call_operator = visit_token(node.call_operator)

    message =
      if node.message_loc.nil?
        :call
      else
        bounds(node.message_loc)
        visit_token(node.message, false)
      end

    if node.name.end_with?("=") && !node.message.end_with?("=") && !node.arguments.nil? && node.block.nil?
      value = visit_write_value(node.arguments.arguments.first)

      bounds(node.location)
      on_assign(on_field(receiver, call_operator, message), value)
    else
      arguments, block, has_ripper_block = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc || node.location))
      call =
        if node.opening_loc.nil?
          bounds(node.location)

          if node.arguments.nil? && !node.block.is_a?(BlockArgumentNode)
            on_call(receiver, call_operator, message)
          else
            on_command_call(receiver, call_operator, message, arguments)
          end
        else
          bounds(node.opening_loc)
          arguments = on_arg_paren(arguments)

          bounds(node.location)
          on_method_add_arg(on_call(receiver, call_operator, message), arguments)
        end

      if has_ripper_block
        bounds(node.block.location)
        on_method_add_block(call, block)
      else
        call
      end
    end
  end
end

#visit_call_operator_write_node(node) ⇒ Object

foo.bar += baz ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1229

def visit_call_operator_write_node(node)
  receiver = visit(node.receiver)

  bounds(node.call_operator_loc)
  call_operator = visit_token(node.call_operator)

  bounds(node.message_loc)
  message = visit_token(node.message)

  bounds(node.location)
  target = on_field(receiver, call_operator, message)

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_call_or_write_node(node) ⇒ Object

foo.bar ||= baz ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1273

def visit_call_or_write_node(node)
  receiver = visit(node.receiver)

  bounds(node.call_operator_loc)
  call_operator = visit_token(node.call_operator)

  bounds(node.message_loc)
  message = visit_token(node.message)

  bounds(node.location)
  target = on_field(receiver, call_operator, message)

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_call_target_node(node) ⇒ Object

foo.bar, = 1 ^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1295

def visit_call_target_node(node)
  if node.call_operator == "::"
    receiver = visit(node.receiver)

    bounds(node.message_loc)
    message = visit_token(node.message)

    bounds(node.location)
    on_const_path_field(receiver, message)
  else
    receiver = visit(node.receiver)

    bounds(node.call_operator_loc)
    call_operator = visit_token(node.call_operator)

    bounds(node.message_loc)
    message = visit_token(node.message)

    bounds(node.location)
    on_field(receiver, call_operator, message)
  end
end

#visit_capture_pattern_node(node) ⇒ Object

foo => bar => baz

^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1320

def visit_capture_pattern_node(node)
  value = visit(node.value)
  target = visit(node.target)

  bounds(node.location)
  on_binary(value, :"=>", target)
end

#visit_case_match_node(node) ⇒ Object

case foo; in bar; end ^^^^^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1343

def visit_case_match_node(node)
  predicate = visit(node.predicate)
  clauses =
    node.conditions.reverse_each.inject(visit(node.else_clause)) do |current, condition|
      on_in(*visit(condition), current)
    end

  bounds(node.location)
  on_case(predicate, clauses)
end

#visit_case_node(node) ⇒ Object

case foo; when bar; end ^^^^^^^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1330

def visit_case_node(node)
  predicate = visit(node.predicate)
  clauses =
    node.conditions.reverse_each.inject(visit(node.else_clause)) do |current, condition|
      on_when(*visit(condition), current)
    end

  bounds(node.location)
  on_case(predicate, clauses)
end

#visit_class_node(node) ⇒ Object

class Foo; end ^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1356

def visit_class_node(node)
  constant_path =
    if node.constant_path.is_a?(ConstantReadNode)
      bounds(node.constant_path.location)
      on_const_ref(on_const(node.constant_path.name.to_s))
    else
      visit(node.constant_path)
    end

  superclass = visit(node.superclass)
  bodystmt = visit_body_node(node.superclass&.location || node.constant_path.location, node.body, node.superclass.nil?)

  bounds(node.location)
  on_class(constant_path, superclass, bodystmt)
end

#visit_class_variable_and_write_node(node) ⇒ Object

@@foo &&= bar ^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1409

def visit_class_variable_and_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_cvar(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_class_variable_operator_write_node(node) ⇒ Object

@@foo += bar ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1395

def visit_class_variable_operator_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_cvar(node.name.to_s))

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_class_variable_or_write_node(node) ⇒ Object

@@foo ||= bar ^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1423

def visit_class_variable_or_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_cvar(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_class_variable_read_node(node) ⇒ Object

@@foo ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1374

def visit_class_variable_read_node(node)
  bounds(node.location)
  on_var_ref(on_cvar(node.slice))
end

#visit_class_variable_target_node(node) ⇒ Object

@@foo, = bar ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1437

def visit_class_variable_target_node(node)
  bounds(node.location)
  on_var_field(on_cvar(node.name.to_s))
end

#visit_class_variable_write_node(node) ⇒ Object

@@foo = 1 ^^^^^^^^^

@@foo, @@bar = 1 ^^^^^ ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1384

def visit_class_variable_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_cvar(node.name.to_s))
  value = visit_write_value(node.value)

  bounds(node.location)
  on_assign(target, value)
end

#visit_constant_and_write_node(node) ⇒ Object

Foo &&= bar ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1479

def visit_constant_and_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_const(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_constant_operator_write_node(node) ⇒ Object

Foo += bar ^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1465

def visit_constant_operator_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_const(node.name.to_s))

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_constant_or_write_node(node) ⇒ Object

Foo ||= bar ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1493

def visit_constant_or_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_const(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_constant_path_and_write_node(node) ⇒ Object

Foo::Bar &&= baz ^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1580

def visit_constant_path_and_write_node(node)
  target = visit_constant_path_write_node_target(node.target)
  value = visit(node.value)

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_constant_path_node(node) ⇒ Object

Foo::Bar ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1514

def visit_constant_path_node(node)
  if node.parent.nil?
    bounds(node.name_loc)
    child = on_const(node.name.to_s)

    bounds(node.location)
    on_top_const_ref(child)
  else
    parent = visit(node.parent)

    bounds(node.name_loc)
    child = on_const(node.name.to_s)

    bounds(node.location)
    on_const_path_ref(parent, child)
  end
end

#visit_constant_path_operator_write_node(node) ⇒ Object

Foo::Bar += baz ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1566

def visit_constant_path_operator_write_node(node)
  target = visit_constant_path_write_node_target(node.target)
  value = visit(node.value)

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_constant_path_or_write_node(node) ⇒ Object

Foo::Bar ||= baz ^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1594

def visit_constant_path_or_write_node(node)
  target = visit_constant_path_write_node_target(node.target)
  value = visit(node.value)

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_constant_path_target_node(node) ⇒ Object

Foo::Bar, = baz ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1608

def visit_constant_path_target_node(node)
  visit_constant_path_write_node_target(node)
end

#visit_constant_path_write_node(node) ⇒ Object

Foo::Bar = 1 ^^^^^^^^^^^^

Foo::Foo, Bar::Bar = 1 ^^^^^^^^ ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1537

def visit_constant_path_write_node(node)
  target = visit_constant_path_write_node_target(node.target)
  value = visit_write_value(node.value)

  bounds(node.location)
  on_assign(target, value)
end

#visit_constant_read_node(node) ⇒ Object

Foo ^^^



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# File 'lib/prism/translation/ripper.rb', line 1444

def visit_constant_read_node(node)
  bounds(node.location)
  on_var_ref(on_const(node.name.to_s))
end

#visit_constant_target_node(node) ⇒ Object

Foo, = bar ^^^



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# File 'lib/prism/translation/ripper.rb', line 1507

def visit_constant_target_node(node)
  bounds(node.location)
  on_var_field(on_const(node.name.to_s))
end

#visit_constant_write_node(node) ⇒ Object

Foo = 1 ^^^^^^^

Foo, Bar = 1 ^^^ ^^^



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# File 'lib/prism/translation/ripper.rb', line 1454

def visit_constant_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_const(node.name.to_s))
  value = visit_write_value(node.value)

  bounds(node.location)
  on_assign(target, value)
end

#visit_def_node(node) ⇒ Object

def foo; end ^^^^^^^^^^^^

def self.foo; end ^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1617

def visit_def_node(node)
  receiver = visit(node.receiver)
  operator =
    if !node.operator_loc.nil?
      bounds(node.operator_loc)
      visit_token(node.operator)
    end

  bounds(node.name_loc)
  name = visit_token(node.name_loc.slice)

  parameters =
    if node.parameters.nil?
      bounds(node.location)
      on_params(nil, nil, nil, nil, nil, nil, nil)
    else
      visit(node.parameters)
    end

  if !node.lparen_loc.nil?
    bounds(node.lparen_loc)
    parameters = on_paren(parameters)
  end

  bodystmt =
    if node.equal_loc.nil?
      visit_body_node(node.rparen_loc || node.end_keyword_loc, node.body)
    else
      body = visit(node.body.body.first)

      bounds(node.body.location)
      on_bodystmt(body, nil, nil, nil)
    end

  bounds(node.location)
  if receiver
    on_defs(receiver, operator, name, parameters, bodystmt)
  else
    on_def(name, parameters, bodystmt)
  end
end

#visit_defined_node(node) ⇒ Object

defined? a ^^^^^^^^^^

defined?(a) ^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1664

def visit_defined_node(node)
  expression = visit(node.value)

  # Very weird circumstances here where something like:
  #
  #     defined?
  #     (1)
  #
  # gets parsed in Ruby as having only the `1` expression but in Ripper it
  # gets parsed as having a parentheses node. In this case we need to
  # synthesize that node to match Ripper's behavior.
  if node.lparen_loc && node.keyword_loc.join(node.lparen_loc).slice.include?("\n")
    bounds(node.lparen_loc.join(node.rparen_loc))
    expression = on_paren(on_stmts_add(on_stmts_new, expression))
  end

  bounds(node.location)
  on_defined(expression)
end

#visit_else_node(node) ⇒ Object

if foo then bar else baz end

^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1686

def visit_else_node(node)
  statements =
    if node.statements.nil?
      [nil]
    else
      body = node.statements.body
      body.unshift(nil) if void_stmt?(node.else_keyword_loc, node.statements.body[0].location, false)
      body
    end

  bounds(node.location)
  on_else(visit_statements_node_body(statements))
end

#visit_embedded_statements_node(node) ⇒ Object

“foo #bar”

^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1702

def visit_embedded_statements_node(node)
  bounds(node.opening_loc)
  on_embexpr_beg(node.opening)

  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  bounds(node.closing_loc)
  on_embexpr_end(node.closing)

  bounds(node.location)
  on_string_embexpr(statements)
end

#visit_embedded_variable_node(node) ⇒ Object

“foo #@bar”

^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1723

def visit_embedded_variable_node(node)
  bounds(node.operator_loc)
  on_embvar(node.operator)

  variable = visit(node.variable)

  bounds(node.location)
  on_string_dvar(variable)
end

#visit_ensure_node(node) ⇒ Object

Visit an EnsureNode node.



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# File 'lib/prism/translation/ripper.rb', line 1734

def visit_ensure_node(node)
  statements =
    if node.statements.nil?
      [nil]
    else
      body = node.statements.body
      body.unshift(nil) if void_stmt?(node.ensure_keyword_loc, body[0].location, false)
      body
    end

  statements = visit_statements_node_body(statements)

  bounds(node.location)
  on_ensure(statements)
end

#visit_false_node(node) ⇒ Object

false ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1752

def visit_false_node(node)
  bounds(node.location)
  on_var_ref(on_kw("false"))
end

#visit_find_pattern_node(node) ⇒ Object

foo => [*, bar, *]

^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1759

def visit_find_pattern_node(node)
  constant = visit(node.constant)
  left =
    if node.left.expression.nil?
      bounds(node.left.location)
      on_var_field(nil)
    else
      visit(node.left.expression)
    end

  requireds = visit_all(node.requireds) if node.requireds.any?
  right =
    if node.right.expression.nil?
      bounds(node.right.location)
      on_var_field(nil)
    else
      visit(node.right.expression)
    end

  bounds(node.location)
  on_fndptn(constant, left, requireds, right)
end

#visit_flip_flop_node(node) ⇒ Object

if foo .. bar; end

^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1784

def visit_flip_flop_node(node)
  left = visit(node.left)
  right = visit(node.right)

  bounds(node.location)
  if node.exclude_end?
    on_dot3(left, right)
  else
    on_dot2(left, right)
  end
end

#visit_float_node(node) ⇒ Object

1.0 ^^^



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# File 'lib/prism/translation/ripper.rb', line 1798

def visit_float_node(node)
  visit_number_node(node) { |text| on_float(text) }
end

#visit_for_node(node) ⇒ Object

for foo in bar do end ^^^^^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1804

def visit_for_node(node)
  index = visit(node.index)
  collection = visit(node.collection)
  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  bounds(node.location)
  on_for(index, collection, statements)
end

#visit_forwarding_arguments_node(node) ⇒ Object

def foo(…); bar(…); end

^^^



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# File 'lib/prism/translation/ripper.rb', line 1821

def visit_forwarding_arguments_node(node)
  bounds(node.location)
  on_args_forward
end

#visit_forwarding_parameter_node(node) ⇒ Object

def foo(…); end

^^^



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# File 'lib/prism/translation/ripper.rb', line 1828

def visit_forwarding_parameter_node(node)
  bounds(node.location)
  on_args_forward
end

#visit_forwarding_super_node(node) ⇒ Object

super ^^^^^

super {} ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1838

def visit_forwarding_super_node(node)
  if node.block.nil?
    bounds(node.location)
    on_zsuper
  else
    block = visit(node.block)

    bounds(node.location)
    on_method_add_block(on_zsuper, block)
  end
end

#visit_global_variable_and_write_node(node) ⇒ Object

$foo &&= bar ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1887

def visit_global_variable_and_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_gvar(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_global_variable_operator_write_node(node) ⇒ Object

$foo += bar ^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1873

def visit_global_variable_operator_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_gvar(node.name.to_s))

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_global_variable_or_write_node(node) ⇒ Object

$foo ||= bar ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1901

def visit_global_variable_or_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_gvar(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_global_variable_read_node(node) ⇒ Object

$foo ^^^^



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# File 'lib/prism/translation/ripper.rb', line 1852

def visit_global_variable_read_node(node)
  bounds(node.location)
  on_var_ref(on_gvar(node.name.to_s))
end

#visit_global_variable_target_node(node) ⇒ Object

$foo, = bar ^^^^



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# File 'lib/prism/translation/ripper.rb', line 1915

def visit_global_variable_target_node(node)
  bounds(node.location)
  on_var_field(on_gvar(node.name.to_s))
end

#visit_global_variable_write_node(node) ⇒ Object

$foo = 1 ^^^^^^^^

$foo, $bar = 1 ^^^^ ^^^^



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# File 'lib/prism/translation/ripper.rb', line 1862

def visit_global_variable_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_gvar(node.name.to_s))
  value = visit_write_value(node.value)

  bounds(node.location)
  on_assign(target, value)
end

#visit_hash_node(node) ⇒ Object

{} ^^



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# File 'lib/prism/translation/ripper.rb', line 1922

def visit_hash_node(node)
  elements =
    if node.elements.any?
      args = visit_all(node.elements)

      bounds(node.elements.first.location)
      on_assoclist_from_args(args)
    end

  bounds(node.location)
  on_hash(elements)
end

#visit_hash_pattern_node(node) ⇒ Object

foo => {}

^^



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# File 'lib/prism/translation/ripper.rb', line 1937

def visit_hash_pattern_node(node)
  constant = visit(node.constant)
  elements =
    if node.elements.any? || !node.rest.nil?
      node.elements.map do |element|
        [
          if (key = element.key).opening_loc.nil?
            visit(key)
          else
            bounds(key.value_loc)
            if (value = key.value).empty?
              on_string_content
            else
              on_string_add(on_string_content, on_tstring_content(value))
            end
          end,
          visit(element.value)
        ]
      end
    end

  rest =
    case node.rest
    when AssocSplatNode
      visit(node.rest.value)
    when NoKeywordsParameterNode
      bounds(node.rest.location)
      on_var_field(visit(node.rest))
    end

  bounds(node.location)
  on_hshptn(constant, elements, rest)
end

#visit_if_node(node) ⇒ Object

if foo then bar end ^^^^^^^^^^^^^^^^^^^

bar if foo ^^^^^^^^^^

foo ? bar : baz ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 1979

def visit_if_node(node)
  if node.then_keyword == "?"
    predicate = visit(node.predicate)
    truthy = visit(node.statements.body.first)
    falsy = visit(node.subsequent.statements.body.first)

    bounds(node.location)
    on_ifop(predicate, truthy, falsy)
  elsif node.statements.nil? || (node.predicate.location.start_offset < node.statements.location.start_offset)
    predicate = visit(node.predicate)
    statements =
      if node.statements.nil?
        bounds(node.location)
        on_stmts_add(on_stmts_new, on_void_stmt)
      else
        visit(node.statements)
      end
    subsequent = visit(node.subsequent)

    bounds(node.location)
    if node.if_keyword == "if"
      on_if(predicate, statements, subsequent)
    else
      on_elsif(predicate, statements, subsequent)
    end
  else
    statements = visit(node.statements.body.first)
    predicate = visit(node.predicate)

    bounds(node.location)
    on_if_mod(predicate, statements)
  end
end

#visit_imaginary_node(node) ⇒ Object

1i ^^



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# File 'lib/prism/translation/ripper.rb', line 2015

def visit_imaginary_node(node)
  visit_number_node(node) { |text| on_imaginary(text) }
end

#visit_implicit_node(node) ⇒ Object

{ foo: }

^^^^



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# File 'lib/prism/translation/ripper.rb', line 2021

def visit_implicit_node(node)
end

#visit_implicit_rest_node(node) ⇒ Object

foo { |bar,| }

^



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# File 'lib/prism/translation/ripper.rb', line 2026

def visit_implicit_rest_node(node)
  bounds(node.location)
  on_excessed_comma
end

#visit_in_node(node) ⇒ Object

case foo; in bar; end ^^^^^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2033

def visit_in_node(node)
  # This is a special case where we're not going to call on_in directly
  # because we don't have access to the subsequent. Instead, we'll return
  # the component parts and let the parent node handle it.
  pattern = visit_pattern_node(node.pattern)
  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  [pattern, statements]
end

#visit_index_and_write_node(node) ⇒ Object

foo &&= baz ^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2068

def visit_index_and_write_node(node)
  receiver = visit(node.receiver)
  arguments, _, _ = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc))

  bounds(node.location)
  target = on_aref_field(receiver, arguments)

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_index_operator_write_node(node) ⇒ Object

foo += baz ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2051

def visit_index_operator_write_node(node)
  receiver = visit(node.receiver)
  arguments, _, _ = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc))

  bounds(node.location)
  target = on_aref_field(receiver, arguments)

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_index_or_write_node(node) ⇒ Object

foo ||= baz ^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2085

def visit_index_or_write_node(node)
  receiver = visit(node.receiver)
  arguments, _, _ = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc))

  bounds(node.location)
  target = on_aref_field(receiver, arguments)

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_index_target_node(node) ⇒ Object

foo, = 1 ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2102

def visit_index_target_node(node)
  receiver = visit(node.receiver)
  arguments, _, _ = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.closing_loc))

  bounds(node.location)
  on_aref_field(receiver, arguments)
end

#visit_instance_variable_and_write_node(node) ⇒ Object

^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2144

def visit_instance_variable_and_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ivar(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_instance_variable_operator_write_node(node) ⇒ Object

^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2130

def visit_instance_variable_operator_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ivar(node.name.to_s))

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_instance_variable_or_write_node(node) ⇒ Object

^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2158

def visit_instance_variable_or_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ivar(node.name.to_s))

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_instance_variable_read_node(node) ⇒ Object

^^^^



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# File 'lib/prism/translation/ripper.rb', line 2112

def visit_instance_variable_read_node(node)
  bounds(node.location)
  on_var_ref(on_ivar(node.name.to_s))
end

#visit_instance_variable_target_node(node) ⇒ Object

@foo, = bar ^^^^



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# File 'lib/prism/translation/ripper.rb', line 2172

def visit_instance_variable_target_node(node)
  bounds(node.location)
  on_var_field(on_ivar(node.name.to_s))
end

#visit_instance_variable_write_node(node) ⇒ Object

^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2119

def visit_instance_variable_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ivar(node.name.to_s))
  value = visit_write_value(node.value)

  bounds(node.location)
  on_assign(target, value)
end

#visit_integer_node(node) ⇒ Object

1 ^



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# File 'lib/prism/translation/ripper.rb', line 2179

def visit_integer_node(node)
  visit_number_node(node) { |text| on_int(text) }
end

#visit_interpolated_match_last_line_node(node) ⇒ Object

if /foo #bar/ then end

^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2185

def visit_interpolated_match_last_line_node(node)
  bounds(node.opening_loc)
  on_regexp_beg(node.opening)

  bounds(node.parts.first.location)
  parts =
    node.parts.inject(on_regexp_new) do |content, part|
      on_regexp_add(content, visit_string_content(part))
    end

  bounds(node.closing_loc)
  closing = on_regexp_end(node.closing)

  bounds(node.location)
  on_regexp_literal(parts, closing)
end

#visit_interpolated_regular_expression_node(node) ⇒ Object

/foo #bar/ ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2204

def visit_interpolated_regular_expression_node(node)
  bounds(node.opening_loc)
  on_regexp_beg(node.opening)

  bounds(node.parts.first.location)
  parts =
    node.parts.inject(on_regexp_new) do |content, part|
      on_regexp_add(content, visit_string_content(part))
    end

  bounds(node.closing_loc)
  closing = on_regexp_end(node.closing)

  bounds(node.location)
  on_regexp_literal(parts, closing)
end

#visit_interpolated_string_node(node) ⇒ Object

“foo #bar” ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2223

def visit_interpolated_string_node(node)
  if node.opening&.start_with?("<<~")
    heredoc = visit_heredoc_string_node(node)

    bounds(node.location)
    on_string_literal(heredoc)
  elsif !node.heredoc? && node.parts.length > 1 && node.parts.any? { |part| (part.is_a?(StringNode) || part.is_a?(InterpolatedStringNode)) && !part.opening_loc.nil? }
    first, *rest = node.parts
    rest.inject(visit(first)) do |content, part|
      concat = visit(part)

      bounds(part.location)
      on_string_concat(content, concat)
    end
  else
    bounds(node.parts.first.location)
    parts =
      node.parts.inject(on_string_content) do |content, part|
        on_string_add(content, visit_string_content(part))
      end

    bounds(node.location)
    on_string_literal(parts)
  end
end

#visit_interpolated_symbol_node(node) ⇒ Object

:“foo #bar” ^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2251

def visit_interpolated_symbol_node(node)
  bounds(node.parts.first.location)
  parts =
    node.parts.inject(on_string_content) do |content, part|
      on_string_add(content, visit_string_content(part))
    end

  bounds(node.location)
  on_dyna_symbol(parts)
end

#visit_interpolated_x_string_node(node) ⇒ Object

‘foo #bar` ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2264

def visit_interpolated_x_string_node(node)
  if node.opening.start_with?("<<~")
    heredoc = visit_heredoc_x_string_node(node)

    bounds(node.location)
    on_xstring_literal(heredoc)
  else
    bounds(node.parts.first.location)
    parts =
      node.parts.inject(on_xstring_new) do |content, part|
        on_xstring_add(content, visit_string_content(part))
      end

    bounds(node.location)
    on_xstring_literal(parts)
  end
end

#visit_it_local_variable_read_node(node) ⇒ Object

-> { it }

^^



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# File 'lib/prism/translation/ripper.rb', line 2294

def visit_it_local_variable_read_node(node)
  bounds(node.location)
  on_vcall(on_ident(node.slice))
end

#visit_it_parameters_node(node) ⇒ Object

-> { it } ^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2301

def visit_it_parameters_node(node)
end

#visit_keyword_hash_node(node) ⇒ Object

foo(bar: baz)

^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2306

def visit_keyword_hash_node(node)
  elements = visit_all(node.elements)

  bounds(node.location)
  on_bare_assoc_hash(elements)
end

#visit_keyword_rest_parameter_node(node) ⇒ Object

def foo(**bar); end

^^^^^

def foo(**); end

^^



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# File 'lib/prism/translation/ripper.rb', line 2318

def visit_keyword_rest_parameter_node(node)
  if node.name_loc.nil?
    bounds(node.location)
    on_kwrest_param(nil)
  else
    bounds(node.name_loc)
    name = on_ident(node.name.to_s)

    bounds(node.location)
    on_kwrest_param(name)
  end
end

#visit_lambda_node(node) ⇒ Object

-> {}



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# File 'lib/prism/translation/ripper.rb', line 2332

def visit_lambda_node(node)
  bounds(node.operator_loc)
  on_tlambda(node.operator)

  parameters =
    if node.parameters.is_a?(BlockParametersNode)
      # Ripper does not track block-locals within lambdas, so we skip
      # directly to the parameters here.
      params =
        if node.parameters.parameters.nil?
          bounds(node.location)
          on_params(nil, nil, nil, nil, nil, nil, nil)
        else
          visit(node.parameters.parameters)
        end

      if node.parameters.opening_loc.nil?
        params
      else
        bounds(node.parameters.opening_loc)
        on_paren(params)
      end
    else
      bounds(node.location)
      on_params(nil, nil, nil, nil, nil, nil, nil)
    end

  braces = node.opening == "{"
  if braces
    bounds(node.opening_loc)
    on_tlambeg(node.opening)
  end

  body =
    case node.body
    when nil
      bounds(node.location)
      stmts = on_stmts_add(on_stmts_new, on_void_stmt)

      bounds(node.location)
      braces ? stmts : on_bodystmt(stmts, nil, nil, nil)
    when StatementsNode
      stmts = node.body.body
      stmts.unshift(nil) if void_stmt?(node.parameters&.location || node.opening_loc, node.body.location, false)
      stmts = visit_statements_node_body(stmts)

      bounds(node.body.location)
      braces ? stmts : on_bodystmt(stmts, nil, nil, nil)
    when BeginNode
      visit_body_node(node.opening_loc, node.body)
    else
      raise
    end

  bounds(node.location)
  on_lambda(parameters, body)
end

#visit_local_variable_and_write_node(node) ⇒ Object

foo &&= bar ^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2424

def visit_local_variable_and_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ident(node.name_loc.slice))

  bounds(node.operator_loc)
  operator = on_op("&&=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_local_variable_operator_write_node(node) ⇒ Object

foo += bar ^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2410

def visit_local_variable_operator_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ident(node.name_loc.slice))

  bounds(node.binary_operator_loc)
  operator = on_op("#{node.binary_operator}=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_local_variable_or_write_node(node) ⇒ Object

foo ||= bar ^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2438

def visit_local_variable_or_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ident(node.name_loc.slice))

  bounds(node.operator_loc)
  operator = on_op("||=")
  value = visit_write_value(node.value)

  bounds(node.location)
  on_opassign(target, operator, value)
end

#visit_local_variable_read_node(node) ⇒ Object

foo ^^^



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# File 'lib/prism/translation/ripper.rb', line 2392

def visit_local_variable_read_node(node)
  bounds(node.location)
  on_var_ref(on_ident(node.slice))
end

#visit_local_variable_target_node(node) ⇒ Object

foo, = bar ^^^



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# File 'lib/prism/translation/ripper.rb', line 2452

def visit_local_variable_target_node(node)
  bounds(node.location)
  on_var_field(on_ident(node.name.to_s))
end

#visit_local_variable_write_node(node) ⇒ Object

foo = 1 ^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2399

def visit_local_variable_write_node(node)
  bounds(node.name_loc)
  target = on_var_field(on_ident(node.name_loc.slice))
  value = visit_write_value(node.value)

  bounds(node.location)
  on_assign(target, value)
end

#visit_match_last_line_node(node) ⇒ Object

if /foo/ then end

^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2459

def visit_match_last_line_node(node)
  bounds(node.opening_loc)
  on_regexp_beg(node.opening)

  bounds(node.content_loc)
  tstring_content = on_tstring_content(node.content)

  bounds(node.closing_loc)
  closing = on_regexp_end(node.closing)

  on_regexp_literal(on_regexp_add(on_regexp_new, tstring_content), closing)
end

#visit_match_predicate_node(node) ⇒ Object

foo in bar ^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2474

def visit_match_predicate_node(node)
  value = visit(node.value)
  pattern = on_in(visit_pattern_node(node.pattern), nil, nil)

  on_case(value, pattern)
end

#visit_match_required_node(node) ⇒ Object

foo => bar ^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2483

def visit_match_required_node(node)
  value = visit(node.value)
  pattern = on_in(visit_pattern_node(node.pattern), nil, nil)

  on_case(value, pattern)
end

#visit_match_write_node(node) ⇒ Object

/(?<foo>foo)/ =~ bar ^^^^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2492

def visit_match_write_node(node)
  visit(node.call)
end

#visit_missing_node(node) ⇒ Object

A node that is missing from the syntax tree. This is only used in the case of a syntax error.



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# File 'lib/prism/translation/ripper.rb', line 2498

def visit_missing_node(node)
  raise "Cannot visit missing nodes directly."
end

#visit_module_node(node) ⇒ Object

module Foo; end ^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2504

def visit_module_node(node)
  constant_path =
    if node.constant_path.is_a?(ConstantReadNode)
      bounds(node.constant_path.location)
      on_const_ref(on_const(node.constant_path.name.to_s))
    else
      visit(node.constant_path)
    end

  bodystmt = visit_body_node(node.constant_path.location, node.body, true)

  bounds(node.location)
  on_module(constant_path, bodystmt)
end

#visit_multi_target_node(node) ⇒ Object

(foo, bar), bar = qux ^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2521

def visit_multi_target_node(node)
  bounds(node.location)
  targets = visit_multi_target_node_targets(node.lefts, node.rest, node.rights, true)

  if node.lparen_loc.nil?
    targets
  else
    bounds(node.lparen_loc)
    on_mlhs_paren(targets)
  end
end

#visit_multi_write_node(node) ⇒ Object

foo, bar = baz ^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2575

def visit_multi_write_node(node)
  bounds(node.location)
  targets = visit_multi_target_node_targets(node.lefts, node.rest, node.rights, true)

  unless node.lparen_loc.nil?
    bounds(node.lparen_loc)
    targets = on_mlhs_paren(targets)
  end

  value = visit_write_value(node.value)

  bounds(node.location)
  on_massign(targets, value)
end

#visit_next_node(node) ⇒ Object

next ^^^^

next foo ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2595

def visit_next_node(node)
  if node.arguments.nil?
    bounds(node.location)
    on_next(on_args_new)
  else
    arguments = visit(node.arguments)

    bounds(node.location)
    on_next(arguments)
  end
end

#visit_nil_node(node) ⇒ Object

nil ^^^



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# File 'lib/prism/translation/ripper.rb', line 2609

def visit_nil_node(node)
  bounds(node.location)
  on_var_ref(on_kw("nil"))
end

#visit_no_keywords_parameter_node(node) ⇒ Object

def foo(**nil); end

^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2616

def visit_no_keywords_parameter_node(node)
  bounds(node.location)
  on_nokw_param(nil)

  :nil
end

#visit_numbered_parameters_node(node) ⇒ Object

-> { _1 + _2 } ^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2625

def visit_numbered_parameters_node(node)
end

#visit_numbered_reference_read_node(node) ⇒ Object

$1 ^^



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# File 'lib/prism/translation/ripper.rb', line 2630

def visit_numbered_reference_read_node(node)
  bounds(node.location)
  on_backref(node.slice)
end

#visit_optional_keyword_parameter_node(node) ⇒ Object

def foo(bar: baz); end

^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2637

def visit_optional_keyword_parameter_node(node)
  bounds(node.name_loc)
  name = on_label("#{node.name}:")
  value = visit(node.value)

  [name, value]
end

#visit_optional_parameter_node(node) ⇒ Object

def foo(bar = 1); end

^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2647

def visit_optional_parameter_node(node)
  bounds(node.name_loc)
  name = visit_token(node.name.to_s)
  value = visit(node.value)

  [name, value]
end

#visit_or_node(node) ⇒ Object

a or b ^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2657

def visit_or_node(node)
  left = visit(node.left)
  right = visit(node.right)

  bounds(node.location)
  on_binary(left, node.operator.to_sym, right)
end

#visit_parameters_node(node) ⇒ Object

def foo(bar, *baz); end

^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2667

def visit_parameters_node(node)
  requireds = node.requireds.map { |required| required.is_a?(MultiTargetNode) ? visit_destructured_parameter_node(required) : visit(required) } if node.requireds.any?
  optionals = visit_all(node.optionals) if node.optionals.any?
  rest = visit(node.rest)
  posts = node.posts.map { |post| post.is_a?(MultiTargetNode) ? visit_destructured_parameter_node(post) : visit(post) } if node.posts.any?
  keywords = visit_all(node.keywords) if node.keywords.any?
  keyword_rest = visit(node.keyword_rest)
  block = visit(node.block)

  bounds(node.location)
  on_params(requireds, optionals, rest, posts, keywords, keyword_rest, block)
end

#visit_parentheses_node(node) ⇒ Object

() ^^

(1) ^^^



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# File 'lib/prism/translation/ripper.rb', line 2694

def visit_parentheses_node(node)
  body =
    if node.body.nil?
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.body)
    end

  bounds(node.location)
  on_paren(body)
end

#visit_pinned_expression_node(node) ⇒ Object

foo => ^(bar)

^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2708

def visit_pinned_expression_node(node)
  expression = visit(node.expression)

  bounds(node.location)
  on_begin(expression)
end

#visit_pinned_variable_node(node) ⇒ Object

foo = 1 and bar => ^foo

^^^^



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# File 'lib/prism/translation/ripper.rb', line 2717

def visit_pinned_variable_node(node)
  visit(node.variable)
end

#visit_post_execution_node(node) ⇒ Object

END {} ^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2723

def visit_post_execution_node(node)
  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  bounds(node.location)
  on_END(statements)
end

#visit_pre_execution_node(node) ⇒ Object

BEGIN {} ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2738

def visit_pre_execution_node(node)
  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  bounds(node.location)
  on_BEGIN(statements)
end

#visit_program_node(node) ⇒ Object

The top-level program node.



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# File 'lib/prism/translation/ripper.rb', line 2752

def visit_program_node(node)
  body = node.statements.body
  body << nil if body.empty?
  statements = visit_statements_node_body(body)

  bounds(node.location)
  on_program(statements)
end

#visit_range_node(node) ⇒ Object

0..5 ^^^^



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# File 'lib/prism/translation/ripper.rb', line 2763

def visit_range_node(node)
  left = visit(node.left)
  right = visit(node.right)

  bounds(node.location)
  if node.exclude_end?
    on_dot3(left, right)
  else
    on_dot2(left, right)
  end
end

#visit_rational_node(node) ⇒ Object

1r ^^



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# File 'lib/prism/translation/ripper.rb', line 2777

def visit_rational_node(node)
  visit_number_node(node) { |text| on_rational(text) }
end

#visit_redo_node(node) ⇒ Object

redo ^^^^



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# File 'lib/prism/translation/ripper.rb', line 2783

def visit_redo_node(node)
  bounds(node.location)
  on_redo
end

#visit_regular_expression_node(node) ⇒ Object

/foo/ ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2790

def visit_regular_expression_node(node)
  bounds(node.opening_loc)
  on_regexp_beg(node.opening)

  if node.content.empty?
    bounds(node.closing_loc)
    closing = on_regexp_end(node.closing)

    on_regexp_literal(on_regexp_new, closing)
  else
    bounds(node.content_loc)
    tstring_content = on_tstring_content(node.content)

    bounds(node.closing_loc)
    closing = on_regexp_end(node.closing)

    on_regexp_literal(on_regexp_add(on_regexp_new, tstring_content), closing)
  end
end

#visit_required_keyword_parameter_node(node) ⇒ Object

def foo(bar:); end

^^^^



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# File 'lib/prism/translation/ripper.rb', line 2812

def visit_required_keyword_parameter_node(node)
  bounds(node.name_loc)
  [on_label("#{node.name}:"), false]
end

#visit_required_parameter_node(node) ⇒ Object

def foo(bar); end

^^^



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# File 'lib/prism/translation/ripper.rb', line 2819

def visit_required_parameter_node(node)
  bounds(node.location)
  on_ident(node.name.to_s)
end

#visit_rescue_modifier_node(node) ⇒ Object

foo rescue bar ^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2826

def visit_rescue_modifier_node(node)
  expression = visit_write_value(node.expression)
  rescue_expression = visit(node.rescue_expression)

  bounds(node.location)
  on_rescue_mod(expression, rescue_expression)
end

#visit_rescue_node(node) ⇒ Object

begin; rescue; end

^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2836

def visit_rescue_node(node)
  exceptions =
    case node.exceptions.length
    when 0
      nil
    when 1
      if (exception = node.exceptions.first).is_a?(SplatNode)
        bounds(exception.location)
        on_mrhs_add_star(on_mrhs_new, visit(exception))
      else
        [visit(node.exceptions.first)]
      end
    else
      bounds(node.location)
      length = node.exceptions.length

      node.exceptions.each_with_index.inject(on_args_new) do |mrhs, (exception, index)|
        arg = visit(exception)

        bounds(exception.location)
        mrhs = on_mrhs_new_from_args(mrhs) if index == length - 1

        if exception.is_a?(SplatNode)
          if index == length - 1
            on_mrhs_add_star(mrhs, arg)
          else
            on_args_add_star(mrhs, arg)
          end
        else
          if index == length - 1
            on_mrhs_add(mrhs, arg)
          else
            on_args_add(mrhs, arg)
          end
        end
      end
    end

  reference = visit(node.reference)
  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  subsequent = visit(node.subsequent)

  bounds(node.location)
  on_rescue(exceptions, reference, statements, subsequent)
end

#visit_rest_parameter_node(node) ⇒ Object

def foo(*bar); end

^^^^

def foo(*); end

^



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# File 'lib/prism/translation/ripper.rb', line 2894

def visit_rest_parameter_node(node)
  if node.name_loc.nil?
    bounds(node.location)
    on_rest_param(nil)
  else
    bounds(node.name_loc)
    on_rest_param(visit_token(node.name.to_s))
  end
end

#visit_retry_node(node) ⇒ Object

retry ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2906

def visit_retry_node(node)
  bounds(node.location)
  on_retry
end

#visit_return_node(node) ⇒ Object

return ^^^^^^

return 1 ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2916

def visit_return_node(node)
  if node.arguments.nil?
    bounds(node.location)
    on_return0
  else
    arguments = visit(node.arguments)

    bounds(node.location)
    on_return(arguments)
  end
end

#visit_self_node(node) ⇒ Object

self ^^^^



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# File 'lib/prism/translation/ripper.rb', line 2930

def visit_self_node(node)
  bounds(node.location)
  on_var_ref(on_kw("self"))
end

#visit_shareable_constant_node(node) ⇒ Object

A shareable constant.



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# File 'lib/prism/translation/ripper.rb', line 2936

def visit_shareable_constant_node(node)
  visit(node.write)
end

#visit_singleton_class_node(node) ⇒ Object

class << self; end ^^^^^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2942

def visit_singleton_class_node(node)
  expression = visit(node.expression)
  bodystmt = visit_body_node(node.body&.location || node.end_keyword_loc, node.body)

  bounds(node.location)
  on_sclass(expression, bodystmt)
end

#visit_source_encoding_node(node) ⇒ Object

__ENCODING__ ^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2952

def visit_source_encoding_node(node)
  bounds(node.location)
  on_var_ref(on_kw("__ENCODING__"))
end

#visit_source_file_node(node) ⇒ Object

__FILE__ ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2959

def visit_source_file_node(node)
  bounds(node.location)
  on_var_ref(on_kw("__FILE__"))
end

#visit_source_line_node(node) ⇒ Object

__LINE__ ^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 2966

def visit_source_line_node(node)
  bounds(node.location)
  on_var_ref(on_kw("__LINE__"))
end

#visit_splat_node(node) ⇒ Object

foo(*bar)

^^^^

def foo((bar, *baz)); end

^^^^

def foo(*); bar(*); end

^



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# File 'lib/prism/translation/ripper.rb', line 2979

def visit_splat_node(node)
  visit(node.expression)
end

#visit_statements_node(node) ⇒ Object

A list of statements.



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# File 'lib/prism/translation/ripper.rb', line 2984

def visit_statements_node(node)
  bounds(node.location)
  visit_statements_node_body(node.body)
end

#visit_string_node(node) ⇒ Object

“foo” ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3001

def visit_string_node(node)
  if (content = node.content).empty?
    bounds(node.location)
    on_string_literal(on_string_content)
  elsif (opening = node.opening) == "?"
    bounds(node.location)
    on_CHAR("?#{node.content}")
  elsif opening.start_with?("<<~")
    heredoc = visit_heredoc_string_node(node.to_interpolated)

    bounds(node.location)
    on_string_literal(heredoc)
  else
    bounds(node.content_loc)
    tstring_content = on_tstring_content(content)

    bounds(node.location)
    on_string_literal(on_string_add(on_string_content, tstring_content))
  end
end

#visit_super_node(node) ⇒ Object

super(foo) ^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3133

def visit_super_node(node)
  arguments, block, has_ripper_block = visit_call_node_arguments(node.arguments, node.block, trailing_comma?(node.arguments&.location || node.location, node.rparen_loc || node.location))

  if !node.lparen_loc.nil?
    bounds(node.lparen_loc)
    arguments = on_arg_paren(arguments)
  end

  bounds(node.location)
  call = on_super(arguments)

  if has_ripper_block
    bounds(node.block.location)
    on_method_add_block(call, block)
  else
    call
  end
end

#visit_symbol_node(node) ⇒ Object

:foo ^^^^



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# File 'lib/prism/translation/ripper.rb', line 3154

def visit_symbol_node(node)
  if (opening = node.opening)&.match?(/^%s|['"]:?$/)
    bounds(node.value_loc)
    content = on_string_content

    if !(value = node.value).empty?
      content = on_string_add(content, on_tstring_content(value))
    end

    on_dyna_symbol(content)
  elsif (closing = node.closing) == ":"
    bounds(node.location)
    on_label("#{node.value}:")
  elsif opening.nil? && node.closing_loc.nil?
    bounds(node.value_loc)
    on_symbol_literal(visit_token(node.value))
  else
    bounds(node.value_loc)
    on_symbol_literal(on_symbol(visit_token(node.value)))
  end
end

#visit_true_node(node) ⇒ Object

true ^^^^



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# File 'lib/prism/translation/ripper.rb', line 3178

def visit_true_node(node)
  bounds(node.location)
  on_var_ref(on_kw("true"))
end

#visit_undef_node(node) ⇒ Object

undef foo ^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3185

def visit_undef_node(node)
  names = visit_all(node.names)

  bounds(node.location)
  on_undef(names)
end

#visit_unless_node(node) ⇒ Object

unless foo; bar end ^^^^^^^^^^^^^^^^^^^

bar unless foo ^^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3197

def visit_unless_node(node)
  if node.statements.nil? || (node.predicate.location.start_offset < node.statements.location.start_offset)
    predicate = visit(node.predicate)
    statements =
      if node.statements.nil?
        bounds(node.location)
        on_stmts_add(on_stmts_new, on_void_stmt)
      else
        visit(node.statements)
      end
    else_clause = visit(node.else_clause)

    bounds(node.location)
    on_unless(predicate, statements, else_clause)
  else
    statements = visit(node.statements.body.first)
    predicate = visit(node.predicate)

    bounds(node.location)
    on_unless_mod(predicate, statements)
  end
end

#visit_until_node(node) ⇒ Object

until foo; bar end ^^^^^^^^^^^^^^^^^

bar until foo ^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3225

def visit_until_node(node)
  if node.statements.nil? || (node.predicate.location.start_offset < node.statements.location.start_offset)
    predicate = visit(node.predicate)
    statements =
      if node.statements.nil?
        bounds(node.location)
        on_stmts_add(on_stmts_new, on_void_stmt)
      else
        visit(node.statements)
      end

    bounds(node.location)
    on_until(predicate, statements)
  else
    statements = visit(node.statements.body.first)
    predicate = visit(node.predicate)

    bounds(node.location)
    on_until_mod(predicate, statements)
  end
end

#visit_when_node(node) ⇒ Object

case foo; when bar; end

^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3249

def visit_when_node(node)
  # This is a special case where we're not going to call on_when directly
  # because we don't have access to the subsequent. Instead, we'll return
  # the component parts and let the parent node handle it.
  conditions = visit_arguments(node.conditions)
  statements =
    if node.statements.nil?
      bounds(node.location)
      on_stmts_add(on_stmts_new, on_void_stmt)
    else
      visit(node.statements)
    end

  [conditions, statements]
end

#visit_while_node(node) ⇒ Object

while foo; bar end ^^^^^^^^^^^^^^^^^^

bar while foo ^^^^^^^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3270

def visit_while_node(node)
  if node.statements.nil? || (node.predicate.location.start_offset < node.statements.location.start_offset)
    predicate = visit(node.predicate)
    statements =
      if node.statements.nil?
        bounds(node.location)
        on_stmts_add(on_stmts_new, on_void_stmt)
      else
        visit(node.statements)
      end

    bounds(node.location)
    on_while(predicate, statements)
  else
    statements = visit(node.statements.body.first)
    predicate = visit(node.predicate)

    bounds(node.location)
    on_while_mod(predicate, statements)
  end
end

#visit_x_string_node(node) ⇒ Object

foo ^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3294

def visit_x_string_node(node)
  if node.unescaped.empty?
    bounds(node.location)
    on_xstring_literal(on_xstring_new)
  elsif node.opening.start_with?("<<~")
    heredoc = visit_heredoc_x_string_node(node.to_interpolated)

    bounds(node.location)
    on_xstring_literal(heredoc)
  else
    bounds(node.content_loc)
    content = on_tstring_content(node.content)

    bounds(node.location)
    on_xstring_literal(on_xstring_add(on_xstring_new, content))
  end
end

#visit_yield_node(node) ⇒ Object

yield ^^^^^

yield 1 ^^^^^^^



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# File 'lib/prism/translation/ripper.rb', line 3317

def visit_yield_node(node)
  if node.arguments.nil? && node.lparen_loc.nil?
    bounds(node.location)
    on_yield0
  else
    arguments =
      if node.arguments.nil?
        bounds(node.location)
        on_args_new
      else
        visit(node.arguments)
      end

    unless node.lparen_loc.nil?
      bounds(node.lparen_loc)
      arguments = on_paren(arguments)
    end

    bounds(node.location)
    on_yield(arguments)
  end
end