Class: Prism::Translation::Ripper

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

SexpBuilder

Defined Under Namespace

Classes: 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

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 444

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 441

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 435

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 438

def lineno
  @lineno
end

#source ⇒ Object (readonly)

The source that is being parsed.



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# File 'lib/prism/translation/ripper.rb', line 432

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 72

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

  if result.failure? && raise_errors
    raise SyntaxError, result.errors.first.message
  else
    result.value
  end
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 46

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 381

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 416

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

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 457

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 462

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 561

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 551

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 585

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 605

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 796

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 615

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 775

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 803

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 816

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 825

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 832

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 896

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 902

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 908

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 944

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 958

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 982

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 1204

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 1002

def visit_call_node(node)
  if node.call_operator_loc.nil?
    case node.name
    when :[]
      receiver = visit(node.receiver)
      arguments, 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 block.nil?
        call
      else
        bounds(node.location)
        on_method_add_block(call, block)
      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 = 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? && arguments&.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 block.nil?
          call
        else
          bounds(node.block.location)
          on_method_add_block(call, block)
        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 = 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 block.nil?
        call
      else
        bounds(node.block.location)
        on_method_add_block(call, block)
      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 1182

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 1226

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 1248

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 1273

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 1296

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 1283

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 1309

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 1362

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 1348

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 1376

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 1327

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 1390

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 1337

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 1432

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 1418

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 1446

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 1533

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 1467

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 1519

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 1547

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 1561

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 1490

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 1397

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 1460

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 1407

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 1570

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.nil?
    on_def(name, parameters, bodystmt)
  else
    on_defs(receiver, operator, 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 1617

def visit_defined_node(node)
  bounds(node.location)
  on_defined(visit(node.value))
end

#visit_else_node(node) ⇒ Object

if foo then bar else baz end

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



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# File 'lib/prism/translation/ripper.rb', line 1624

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 1640

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 1661

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 1672

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 1690

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 1697

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 1722

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 1736

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 1742

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 1759

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 1766

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 1776

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 1825

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 1811

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 1839

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 1790

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 1853

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 1800

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 1860

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 1875

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 1917

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 1953

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 1959

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 1964

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 1971

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 2006

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 1989

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 2023

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 2040

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 2082

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 2068

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 2096

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 2050

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 2110

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 2057

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 2117

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 2123

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 2142

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 2161

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 2189

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 2202

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 2232

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 2239

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 2244

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 2256

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 2270

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 2362

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 2348

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 2376

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 2330

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 2390

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 2337

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 2397

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 2412

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 2421

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 2430

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 2436

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 2442

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 2459

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 2513

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 2533

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 2547

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 2554

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 2563

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 2568

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 2575

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 2585

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 2595

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 2605

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 2632

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 2646

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 2655

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 2661

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 2676

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 2690

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 2701

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 2715

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 2721

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 2728

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 2750

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 2757

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 2764

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 2774

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 2832

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 2844

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 2854

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 2868

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 2874

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 2880

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 2890

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 2897

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 2904

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 2917

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 2922

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 2939

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 3071

def visit_super_node(node)
  arguments, 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 block.nil?
    call
  else
    bounds(node.block.location)
    on_method_add_block(call, block)
  end
end

#visit_symbol_node(node) ⇒ Object

:foo ^^^^



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# File 'lib/prism/translation/ripper.rb', line 3092

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 3116

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 3123

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 3135

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 3163

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 3187

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 3208

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 3232

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 3255

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