class Prism::Translation::Ripper
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
Constants
- BINARY_OPERATORS
-
A list of all of the Ruby binary operators.
- EVENTS
-
This array contains name of all ripper events.
- KEYWORDS
-
A list of all of the Ruby keywords.
- PARSER_EVENTS
-
This array contains name of parser events.
- PARSER_EVENT_TABLE
-
This contains a table of all of the parser events and their corresponding arity.
- SCANNER_EVENTS
-
This array contains name of scanner events.
- SCANNER_EVENT_TABLE
-
This contains a table of all of the scanner events and their corresponding arity.
Attributes
The current column number of the parser.
The filename of the source being parsed.
The current line number of the parser.
The source that is being parsed.
Public Class Methods
Source
# 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
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 ]]
Source
# File lib/prism/translation/ripper.rb, line 443 def initialize(source, filename = "(ripper)", lineno = 1) @source = source @filename = filename @lineno = lineno @column = 0 @result = nil end
Create a new Translation::Ripper object with the given source.
Source
# File lib/prism/translation/ripper.rb, line 45 def self.parse(src, filename = "(ripper)", lineno = 1) new(src, filename, lineno).parse end
Source
# File lib/prism/translation/ripper.rb, line 380 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
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]]]]
Source
# File lib/prism/translation/ripper.rb, line 415 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
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]]]]
Public Instance Methods
Source
# File lib/prism/translation/ripper.rb, line 456 def error? result.failure? end
True if the parser encountered an error during parsing.
Source
# File lib/prism/translation/ripper.rb, line 461 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
Parse the source and return the result.
Source
# File lib/prism/translation/ripper.rb, line 560 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
alias $foo $bar ^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 550 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
alias foo bar ^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 584 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
foo => bar | baz ^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 604 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
a and b ^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 795 def visit_arguments_node(node) arguments, _ = visit_call_node_arguments(node, nil, false) arguments end
foo(bar) ^^^
Source
# File lib/prism/translation/ripper.rb, line 614 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
[] ^^
Source
# File lib/prism/translation/ripper.rb, line 774 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
foo => [bar] ^^^^^
Source
# File lib/prism/translation/ripper.rb, line 802 def visit_assoc_node(node) key = visit(node.key) value = visit(node.value) bounds(node.location) on_assoc_new(key, value) end
{ a: 1 } ^^^^
Source
# File lib/prism/translation/ripper.rb, line 815 def visit_assoc_splat_node(node) value = visit(node.value) bounds(node.location) on_assoc_splat(value) end
def foo(); bar(); end ^^
{ **foo } ^^^^^
Source
# File lib/prism/translation/ripper.rb, line 824 def visit_back_reference_read_node(node) bounds(node.location) on_backref(node.slice) end
$+ ^^
Source
# File lib/prism/translation/ripper.rb, line 831 def visit_begin_node(node) clauses = visit_begin_node_clauses(node.begin_keyword_loc, node, false) bounds(node.location) on_begin(clauses) end
begin end ^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 895 def visit_block_argument_node(node) visit(node.expression) end
foo(&bar) ^^^^
Source
# File lib/prism/translation/ripper.rb, line 901 def visit_block_local_variable_node(node) bounds(node.location) on_ident(node.name.to_s) end
foo { |; bar| } ^^^
Source
# File lib/prism/translation/ripper.rb, line 907 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 a BlockNode.
Source
# File lib/prism/translation/ripper.rb, line 943 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
def foo(&bar); end ^^^^
Source
# File lib/prism/translation/ripper.rb, line 957 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
A block’s parameters.
Source
# File lib/prism/translation/ripper.rb, line 981 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
break ^^^^^
break foo ^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1203 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
foo.bar &&= baz ^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1001 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
foo ^^^
foo.bar ^^^^^^^
foo.bar() {} ^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1181 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
foo.bar += baz ^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1225 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
foo.bar ||= baz ^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1247 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
foo.bar, = 1 ^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1272 def visit_capture_pattern_node(node) value = visit(node.value) target = visit(node.target) bounds(node.location) on_binary(value, :"=>", target) end
foo => bar => baz ^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1295 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
case foo; in bar; end ^^^^^^^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1282 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
case foo; when bar; end ^^^^^^^^^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1308 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
class Foo; end ^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1361 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
@@foo &&= bar ^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1347 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
@@foo += bar ^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1375 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
@@foo ||= bar ^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1326 def visit_class_variable_read_node(node) bounds(node.location) on_var_ref(on_cvar(node.slice)) end
@@foo ^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1389 def visit_class_variable_target_node(node) bounds(node.location) on_var_field(on_cvar(node.name.to_s)) end
@@foo, = bar ^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1336 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
@@foo = 1 ^^^^^^^^^
@@foo, @@bar = 1 ^^^^^ ^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1431 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
Foo &&= bar ^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1417 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
Foo += bar ^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1445 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
Foo ||= bar ^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1532 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
Foo::Bar &&= baz ^^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1466 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
Foo::Bar ^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1518 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
Foo::Bar += baz ^^^^^^^^^^^^^^^
Source
# File lib/prism/translation/ripper.rb, line 1546 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
Foo::Bar ||= baz ^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1560 def visit_constant_path_target_node(node) visit_constant_path_write_node_target(node) end
Foo::Bar, = baz ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1489 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
Foo::Bar = 1 ^^^^^^^^^^^^
Foo::Foo, Bar::Bar = 1 ^^^^^^^^ ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1396 def visit_constant_read_node(node) bounds(node.location) on_var_ref(on_const(node.name.to_s)) end
Foo ^^^
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# File lib/prism/translation/ripper.rb, line 1459 def visit_constant_target_node(node) bounds(node.location) on_var_field(on_const(node.name.to_s)) end
Foo, = bar ^^^
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# File lib/prism/translation/ripper.rb, line 1406 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
Foo = 1 ^^^^^^^
Foo, Bar = 1 ^^^ ^^^
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# File lib/prism/translation/ripper.rb, line 1569 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
def foo; end ^^^^^^^^^^^^
def self.foo; end ^^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1616 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
defined? a ^^^^^^^^^^
defined?(a) ^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1638 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
if foo then bar else baz end ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1654 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
“foo #{bar}” ^^^^^^
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# File lib/prism/translation/ripper.rb, line 1675 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
“foo #@bar” ^^^^^
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# File lib/prism/translation/ripper.rb, line 1686 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 an EnsureNode node.
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# File lib/prism/translation/ripper.rb, line 1704 def visit_false_node(node) bounds(node.location) on_var_ref(on_kw("false")) end
false ^^^^^
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# File lib/prism/translation/ripper.rb, line 1711 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
foo => [, bar, ] ^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1736 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
if foo .. bar; end ^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1750 def visit_float_node(node) visit_number_node(node) { |text| on_float(text) } end
1.0 ^^^
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# File lib/prism/translation/ripper.rb, line 1756 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
for foo in bar do end ^^^^^^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1773 def visit_forwarding_arguments_node(node) bounds(node.location) on_args_forward end
def foo(…); bar(…); end ^^^
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# File lib/prism/translation/ripper.rb, line 1780 def visit_forwarding_parameter_node(node) bounds(node.location) on_args_forward end
def foo(…); end ^^^
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# File lib/prism/translation/ripper.rb, line 1790 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
super ^^^^^
super {} ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1839 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
$foo &&= bar ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1825 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
$foo += bar ^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1853 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
$foo ||= bar ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1804 def visit_global_variable_read_node(node) bounds(node.location) on_var_ref(on_gvar(node.name.to_s)) end
$foo ^^^^
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# File lib/prism/translation/ripper.rb, line 1867 def visit_global_variable_target_node(node) bounds(node.location) on_var_field(on_gvar(node.name.to_s)) end
$foo, = bar ^^^^
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# File lib/prism/translation/ripper.rb, line 1814 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
$foo = 1 ^^^^^^^^
$foo, $bar = 1 ^^^^ ^^^^
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# File lib/prism/translation/ripper.rb, line 1874 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
{} ^^
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# File lib/prism/translation/ripper.rb, line 1889 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
foo => {} ^^
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# File lib/prism/translation/ripper.rb, line 1931 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
if foo then bar end ^^^^^^^^^^^^^^^^^^^
bar if foo ^^^^^^^^^^
foo ? bar : baz ^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 1967 def visit_imaginary_node(node) visit_number_node(node) { |text| on_imaginary(text) } end
1i ^^
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# File lib/prism/translation/ripper.rb, line 1973 def visit_implicit_node(node) end
{ foo: } ^^^^
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# File lib/prism/translation/ripper.rb, line 1978 def visit_implicit_rest_node(node) bounds(node.location) on_excessed_comma end
foo { |bar,| } ^
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# File lib/prism/translation/ripper.rb, line 1985 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
case foo; in bar; end ^^^^^^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2020 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
foo &&= baz ^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2003 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
foo += baz ^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2037 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
foo ||= baz ^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2054 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
foo, = 1 ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2096 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
@foo &&= bar ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2082 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
@foo += bar ^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2110 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
@foo ||= bar ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2064 def visit_instance_variable_read_node(node) bounds(node.location) on_var_ref(on_ivar(node.name.to_s)) end
@foo ^^^^
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# File lib/prism/translation/ripper.rb, line 2124 def visit_instance_variable_target_node(node) bounds(node.location) on_var_field(on_ivar(node.name.to_s)) end
@foo, = bar ^^^^
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# File lib/prism/translation/ripper.rb, line 2071 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
@foo = 1 ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2131 def visit_integer_node(node) visit_number_node(node) { |text| on_int(text) } end
1 ^
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# File lib/prism/translation/ripper.rb, line 2137 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
if /foo #{bar}/ then end ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2156 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
/foo #{bar}/ ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2175 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
“foo #{bar}” ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2203 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
:“foo #{bar}” ^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2216 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
foo #{bar} ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2246 def visit_it_local_variable_read_node(node) bounds(node.location) on_vcall(on_ident(node.slice)) end
-> { it } ^^
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# File lib/prism/translation/ripper.rb, line 2253 def visit_it_parameters_node(node) end
-> { it } ^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2258 def visit_keyword_hash_node(node) elements = visit_all(node.elements) bounds(node.location) on_bare_assoc_hash(elements) end
foo(bar: baz) ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2270 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
def foo(**bar); end ^^^^^
def foo(**); end ^^
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# File lib/prism/translation/ripper.rb, line 2284 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
-> {}
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# File lib/prism/translation/ripper.rb, line 2376 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
foo &&= bar ^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2362 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
foo += bar ^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2390 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
foo ||= bar ^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2344 def visit_local_variable_read_node(node) bounds(node.location) on_var_ref(on_ident(node.slice)) end
foo ^^^
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# File lib/prism/translation/ripper.rb, line 2404 def visit_local_variable_target_node(node) bounds(node.location) on_var_field(on_ident(node.name.to_s)) end
foo, = bar ^^^
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# File lib/prism/translation/ripper.rb, line 2351 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
foo = 1 ^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2411 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
if /foo/ then end ^^^^^
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# File lib/prism/translation/ripper.rb, line 2426 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
foo in bar ^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2435 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
foo => bar ^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2444 def visit_match_write_node(node) visit(node.call) end
/(?<foo>foo)/ =~ bar ^^^^^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2450 def visit_missing_node(node) raise "Cannot visit missing nodes directly." end
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 2456 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
module Foo; end ^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2473 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
(foo, bar), bar = qux ^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2527 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
foo, bar = baz ^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2547 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
next ^^^^
next foo ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2561 def visit_nil_node(node) bounds(node.location) on_var_ref(on_kw("nil")) end
nil ^^^
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# File lib/prism/translation/ripper.rb, line 2568 def visit_no_keywords_parameter_node(node) bounds(node.location) on_nokw_param(nil) :nil end
def foo(**nil); end ^^^^^
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# File lib/prism/translation/ripper.rb, line 2577 def visit_numbered_parameters_node(node) end
-> { 1 + 2 } ^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2582 def visit_numbered_reference_read_node(node) bounds(node.location) on_backref(node.slice) end
$1 ^^
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# File lib/prism/translation/ripper.rb, line 2589 def visit_optional_keyword_parameter_node(node) bounds(node.name_loc) name = on_label("#{node.name}:") value = visit(node.value) [name, value] end
def foo(bar: baz); end ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2599 def visit_optional_parameter_node(node) bounds(node.name_loc) name = visit_token(node.name.to_s) value = visit(node.value) [name, value] end
def foo(bar = 1); end ^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2609 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
a or b ^^^^^^
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# File lib/prism/translation/ripper.rb, line 2619 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
def foo(bar, *baz); end ^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2646 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
() ^^
(1) ^^^
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# File lib/prism/translation/ripper.rb, line 2660 def visit_pinned_expression_node(node) expression = visit(node.expression) bounds(node.location) on_begin(expression) end
foo => ^(bar) ^^^^^^
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# File lib/prism/translation/ripper.rb, line 2669 def visit_pinned_variable_node(node) visit(node.variable) end
foo = 1 and bar => ^foo ^^^^
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# File lib/prism/translation/ripper.rb, line 2675 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
END {} ^^^^^^
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# File lib/prism/translation/ripper.rb, line 2690 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
BEGIN {} ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2704 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
The top-level program node.
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# File lib/prism/translation/ripper.rb, line 2715 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
0..5 ^^^^
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# File lib/prism/translation/ripper.rb, line 2729 def visit_rational_node(node) visit_number_node(node) { |text| on_rational(text) } end
1r ^^
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# File lib/prism/translation/ripper.rb, line 2735 def visit_redo_node(node) bounds(node.location) on_redo end
redo ^^^^
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# File lib/prism/translation/ripper.rb, line 2742 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
/foo/ ^^^^^
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# File lib/prism/translation/ripper.rb, line 2764 def visit_required_keyword_parameter_node(node) bounds(node.name_loc) [on_label("#{node.name}:"), false] end
def foo(bar:); end ^^^^
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# File lib/prism/translation/ripper.rb, line 2771 def visit_required_parameter_node(node) bounds(node.location) on_ident(node.name.to_s) end
def foo(bar); end ^^^
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# File lib/prism/translation/ripper.rb, line 2778 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
foo rescue bar ^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2788 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
begin; rescue; end ^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2846 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
def foo(*bar); end ^^^^
def foo(*); end ^
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# File lib/prism/translation/ripper.rb, line 2858 def visit_retry_node(node) bounds(node.location) on_retry end
retry ^^^^^
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# File lib/prism/translation/ripper.rb, line 2868 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
return ^^^^^^
return 1 ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2882 def visit_self_node(node) bounds(node.location) on_var_ref(on_kw("self")) end
self ^^^^
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# File lib/prism/translation/ripper.rb, line 2894 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
class << self; end ^^^^^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2904 def visit_source_encoding_node(node) bounds(node.location) on_var_ref(on_kw("__ENCODING__")) end
ENCODING ^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2911 def visit_source_file_node(node) bounds(node.location) on_var_ref(on_kw("__FILE__")) end
FILE ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2918 def visit_source_line_node(node) bounds(node.location) on_var_ref(on_kw("__LINE__")) end
LINE ^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 2931 def visit_splat_node(node) visit(node.expression) end
foo(*bar) ^^^^
def foo((bar, *baz)); end ^^^^
def foo(); bar(); end ^
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# File lib/prism/translation/ripper.rb, line 2936 def visit_statements_node(node) bounds(node.location) visit_statements_node_body(node.body) end
A list of statements.
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# File lib/prism/translation/ripper.rb, line 2953 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
“foo” ^^^^^
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# File lib/prism/translation/ripper.rb, line 3085 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
super(foo) ^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 3106 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
:foo ^^^^
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# File lib/prism/translation/ripper.rb, line 3130 def visit_true_node(node) bounds(node.location) on_var_ref(on_kw("true")) end
true ^^^^
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# File lib/prism/translation/ripper.rb, line 3137 def visit_undef_node(node) names = visit_all(node.names) bounds(node.location) on_undef(names) end
undef foo ^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 3149 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
unless foo; bar end ^^^^^^^^^^^^^^^^^^^
bar unless foo ^^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 3177 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
until foo; bar end ^^^^^^^^^^^^^^^^^
bar until foo ^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 3201 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
case foo; when bar; end ^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 3222 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
while foo; bar end ^^^^^^^^^^^^^^^^^^
bar while foo ^^^^^^^^^^^^^
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# File lib/prism/translation/ripper.rb, line 3246 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
foo ^^^^^
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# File lib/prism/translation/ripper.rb, line 3269 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
yield ^^^^^
yield 1 ^^^^^^^
Private Instance Methods
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# File lib/prism/translation/ripper.rb, line 3399 def bounds(location) @lineno = location.start_line @column = location.start_column end
This method is responsible for updating lineno and column information to reflect the current node.
This method could be drastically improved with some caching on the start of every line, but for now it’s good enough.
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# File lib/prism/translation/ripper.rb, line 1172 def command?(node) node.is_a?(CallNode) && node.opening_loc.nil? && (!node.arguments.nil? || node.block.is_a?(BlockArgumentNode)) && !BINARY_OPERATORS.include?(node.name) end
Returns true if the given node is a command node.
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# File lib/prism/translation/ripper.rb, line 3437 def compile_error(msg) end
This method is called when the parser found syntax error.
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# File lib/prism/translation/ripper.rb, line 3452 def dedent_string(string, width) whitespace = 0 cursor = 0 while cursor < string.length && string[cursor].match?(/\s/) && whitespace < width if string[cursor] == "\t" whitespace = ((whitespace / 8 + 1) * 8) break if whitespace > width else whitespace += 1 end cursor += 1 end string.replace(string[cursor..]) cursor end
This method is provided by the Ripper C extension. It is called when a string needs to be dedented because of a tilde heredoc. It is expected that it will modify the string in place and return the number of bytes that were removed.
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# File lib/prism/translation/ripper.rb, line 3295 def result @result ||= Prism.parse(source, partial_script: true, version: "current") end
Lazily initialize the parse result.
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# File lib/prism/translation/ripper.rb, line 3304 def trailing_comma?(left, right) source.byteslice(left.end_offset...right.start_offset).include?(",") end
Returns true if there is a comma between the two locations.
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# File lib/prism/translation/ripper.rb, line 569 def visit_alias_global_variable_node_value(node) bounds(node.location) case node when BackReferenceReadNode on_backref(node.slice) when GlobalVariableReadNode on_gvar(node.name.to_s) else raise end end
Visit one side of an alias global variable node.
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# File lib/prism/translation/ripper.rb, line 755 def visit_arguments(elements) bounds(elements.first.location) elements.inject(on_args_new) do |args, element| arg = visit(element) bounds(element.location) case element when BlockArgumentNode on_args_add_block(args, arg) when SplatNode on_args_add_star(args, arg) else on_args_add(args, arg) end end end
Visit a list of elements, like the elements of an array or arguments.
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# File lib/prism/translation/ripper.rb, line 839 def visit_begin_node_clauses(location, node, allow_newline) statements = if node.statements.nil? on_stmts_add(on_stmts_new, on_void_stmt) else body = node.statements.body body.unshift(nil) if void_stmt?(location, node.statements.body[0].location, allow_newline) bounds(node.statements.location) visit_statements_node_body(body) end rescue_clause = visit(node.rescue_clause) else_clause = unless (else_clause_node = node.else_clause).nil? else_statements = if else_clause_node.statements.nil? [nil] else body = else_clause_node.statements.body body.unshift(nil) if void_stmt?(else_clause_node.else_keyword_loc, else_clause_node.statements.body[0].location, allow_newline) body end bounds(else_clause_node.location) visit_statements_node_body(else_statements) end ensure_clause = visit(node.ensure_clause) bounds(node.location) on_bodystmt(statements, rescue_clause, else_clause, ensure_clause) end
Visit the clauses of a begin node to form an on_bodystmt call.
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# File lib/prism/translation/ripper.rb, line 874 def visit_body_node(location, node, allow_newline = false) case node when nil bounds(location) on_bodystmt(visit_statements_node_body([nil]), nil, nil, nil) when StatementsNode body = [*node.body] body.unshift(nil) if void_stmt?(location, body[0].location, allow_newline) stmts = visit_statements_node_body(body) bounds(node.body.first.location) on_bodystmt(stmts, nil, nil, nil) when BeginNode visit_begin_node_clauses(location, node, allow_newline) else raise end end
Visit the body of a structure that can have either a set of statements or statements wrapped in rescue/else/ensure.
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# File lib/prism/translation/ripper.rb, line 1145 def visit_call_node_arguments(arguments_node, block_node, trailing_comma) arguments = arguments_node&.arguments || [] block = block_node if block.is_a?(BlockArgumentNode) arguments << block block = nil end [ if arguments.length == 1 && arguments.first.is_a?(ForwardingArgumentsNode) visit(arguments.first) elsif arguments.any? args = visit_arguments(arguments) if block_node.is_a?(BlockArgumentNode) || arguments.last.is_a?(ForwardingArgumentsNode) || command?(arguments.last) || trailing_comma args else bounds(arguments.first.location) on_args_add_block(args, false) end end, visit(block) ] end
Visit the arguments and block of a call node and return the arguments and block as they should be used.
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# File lib/prism/translation/ripper.rb, line 1498 def visit_constant_path_write_node_target(node) if node.parent.nil? bounds(node.name_loc) child = on_const(node.name.to_s) bounds(node.location) on_top_const_field(child) else parent = visit(node.parent) bounds(node.name_loc) child = on_const(node.name.to_s) bounds(node.location) on_const_path_field(parent, child) end end
Visit a constant path that is part of a write node.
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# File lib/prism/translation/ripper.rb, line 2633 def visit_destructured_parameter_node(node) bounds(node.location) targets = visit_multi_target_node_targets(node.lefts, node.rest, node.rights, false) bounds(node.lparen_loc) on_mlhs_paren(targets) end
Visit a destructured positional parameter node.
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# File lib/prism/translation/ripper.rb, line 3004 def visit_heredoc_node(parts, base) common_whitespace = visit_heredoc_node_whitespace(parts) if common_whitespace == 0 bounds(parts.first.location) string = [] result = base parts.each do |part| if part.is_a?(StringNode) if string.empty? string = [part] else string << part end else unless string.empty? bounds(string[0].location) result = yield result, on_tstring_content(string.map(&:content).join) string = [] end result = yield result, visit(part) end end unless string.empty? bounds(string[0].location) result = yield result, on_tstring_content(string.map(&:content).join) end result else bounds(parts.first.location) result = parts.inject(base) do |string_content, part| yield string_content, visit_string_content(part) end bounds(parts.first.location) on_heredoc_dedent(result, common_whitespace) end end
Visit a string that is expressed using a <<~ heredoc.
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# File lib/prism/translation/ripper.rb, line 2979 def visit_heredoc_node_whitespace(parts) common_whitespace = nil dedent_next = true parts.each do |part| if part.is_a?(StringNode) if dedent_next && !(content = part.content).chomp.empty? common_whitespace = [ common_whitespace || Float::INFINITY, content[/\A\s*/].each_char.inject(0) do |part_whitespace, char| char == "\t" ? ((part_whitespace / 8 + 1) * 8) : (part_whitespace + 1) end ].min end dedent_next = true else dedent_next = false end end common_whitespace || 0 end
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# File lib/prism/translation/ripper.rb, line 3050 def visit_heredoc_string_node(node) bounds(node.opening_loc) on_heredoc_beg(node.opening) bounds(node.location) result = visit_heredoc_node(node.parts, on_string_content) do |parts, part| on_string_add(parts, part) end bounds(node.closing_loc) on_heredoc_end(node.closing) result end
Visit a heredoc node that is representing a string.
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# File lib/prism/translation/ripper.rb, line 3067 def visit_heredoc_x_string_node(node) bounds(node.opening_loc) on_heredoc_beg(node.opening) bounds(node.location) result = visit_heredoc_node(node.parts, on_xstring_new) do |parts, part| on_xstring_add(parts, part) end bounds(node.closing_loc) on_heredoc_end(node.closing) result end
Visit a heredoc node that is representing an xstring.
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# File lib/prism/translation/ripper.rb, line 2486 def visit_multi_target_node_targets(lefts, rest, rights, skippable) if skippable && lefts.length == 1 && lefts.first.is_a?(MultiTargetNode) && rest.nil? && rights.empty? return visit(lefts.first) end mlhs = on_mlhs_new lefts.each do |left| bounds(left.location) mlhs = on_mlhs_add(mlhs, visit(left)) end case rest when nil # do nothing when ImplicitRestNode # these do not get put into the generated tree bounds(rest.location) on_excessed_comma else bounds(rest.location) mlhs = on_mlhs_add_star(mlhs, visit(rest)) end if rights.any? bounds(rights.first.location) post = on_mlhs_new rights.each do |right| bounds(right.location) post = on_mlhs_add(post, visit(right)) end mlhs = on_mlhs_add_post(mlhs, post) end mlhs end
Visit the targets of a multi-target node.
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# File lib/prism/translation/ripper.rb, line 3343 def visit_number_node(node) slice = node.slice location = node.location if slice[0] == "-" bounds(location.copy(start_offset: location.start_offset + 1)) value = yield slice[1..-1] bounds(node.location) on_unary(:-@, value) else bounds(location) yield slice end end
Visit a node that represents a number. We need to explicitly handle the unary - operator.
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# File lib/prism/translation/ripper.rb, line 594 def visit_pattern_node(node) if node.is_a?(ParenthesesNode) visit(node.body) else visit(node) end end
Visit a pattern within a pattern match. This is used to bypass the parenthesis node that can be used to wrap patterns.
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# File lib/prism/translation/ripper.rb, line 2945 def visit_statements_node_body(body) body.inject(on_stmts_new) do |stmts, stmt| on_stmts_add(stmts, stmt.nil? ? on_void_stmt : visit(stmt)) end end
Visit the list of statements of a statements node. We support nil statements in the list. This would normally not be allowed by the structure of the prism parse tree, but we manually add them here so that we can mirror Ripper’s void stmt.
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# File lib/prism/translation/ripper.rb, line 2235 def visit_string_content(part) if part.is_a?(StringNode) bounds(part.content_loc) on_tstring_content(part.content) else visit(part) end end
Visit an individual part of a string-like node.
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# File lib/prism/translation/ripper.rb, line 3316 def visit_token(token, allow_keywords = true) case token when "." on_period(token) when "`" on_backtick(token) when *(allow_keywords ? KEYWORDS : []) on_kw(token) when /^_/ on_ident(token) when /^[[:upper:]]\w*$/ on_const(token) when /^@@/ on_cvar(token) when /^@/ on_ivar(token) when /^\$/ on_gvar(token) when /^[[:punct:]]/ on_op(token) else on_ident(token) end end
Visit the string content of a particular node. This method is used to split into the various token types.
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# File lib/prism/translation/ripper.rb, line 744 def visit_words_sep(opening_loc, previous, current) end_offset = (previous.nil? ? opening_loc : previous.location).end_offset start_offset = current.location.start_offset if end_offset != start_offset bounds(current.location.copy(start_offset: end_offset)) on_words_sep(source.byteslice(end_offset...start_offset)) end end
Dispatch a words_sep event that contains the space between the elements of list literals.
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# File lib/prism/translation/ripper.rb, line 3361 def visit_write_value(node) if node.is_a?(ArrayNode) && node.opening_loc.nil? elements = node.elements length = elements.length bounds(elements.first.location) elements.each_with_index.inject((elements.first.is_a?(SplatNode) && length == 1) ? on_mrhs_new : on_args_new) do |args, (element, index)| arg = visit(element) bounds(element.location) if index == length - 1 if element.is_a?(SplatNode) mrhs = index == 0 ? args : on_mrhs_new_from_args(args) on_mrhs_add_star(mrhs, arg) else on_mrhs_add(on_mrhs_new_from_args(args), arg) end else case element when BlockArgumentNode on_args_add_block(args, arg) when SplatNode on_args_add_star(args, arg) else on_args_add(args, arg) end end end else visit(node) end end
Visit a node that represents a write value. This is used to handle the special case of an implicit array that is generated without brackets.
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# File lib/prism/translation/ripper.rb, line 3309 def void_stmt?(left, right, allow_newline) pattern = allow_newline ? /[;\n]/ : /;/ source.byteslice(left.end_offset...right.start_offset).match?(pattern) end
Returns true if there is a semicolon between the two locations.
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# File lib/prism/translation/ripper.rb, line 3428 def warn(fmt, *args) end
This method is called when weak warning is produced by the parser. fmt and args is printf style.
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# File lib/prism/translation/ripper.rb, line 3433 def warning(fmt, *args) end
This method is called when strong warning is produced by the parser. fmt and args is printf style.