Class: Opal::Nodes::KwrestArgNode

Inherits:
InitializeKwargsNode show all
Defined in:
opal/lib/opal/nodes/args/kwrestarg.rb

Overview

A node responsible for extracting a keyword splat argument

def m(kwrest) def m()

Constant Summary

Constants included from Helpers

Helpers::BASIC_IDENTIFIER_RULES, Helpers::ES3_RESERVED_WORD_EXCLUSIVE, Helpers::ES51_RESERVED_WORD, Helpers::IMMUTABLE_PROPS, Helpers::PROTO_SPECIAL_METHODS, Helpers::PROTO_SPECIAL_PROPS, Helpers::RESERVED_FUNCTION_NAMES

Instance Attribute Summary

Attributes inherited from Base

#compiler, #type

Instance Method Summary collapse

Methods inherited from InitializeKwargsNode

#initialize_kw_args_if_needed

Methods inherited from Base

#add_gvar, #add_ivar, #add_local, #add_temp, #children, children, #compile_to_fragments, #error, #expr, #expr?, #expr_or_nil, #fragment, handle, handlers, #has_rescue_else?, #helper, #in_ensure, #in_ensure?, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #stmt, #stmt?, truthy_optimize?, #unshift, #while_loop, #with_temp, #wrap

Methods included from Helpers

#current_indent, #empty_line, #indent, #ivar, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #lvar_to_js, #mid_to_jsid, #property, #valid_ivar_name?, #valid_name?, #variable

Constructor Details

This class inherits a constructor from Opal::Nodes::Base

Instance Method Details

#compileObject


14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
# File 'opal/lib/opal/nodes/args/kwrestarg.rb', line 14

def compile
  initialize_kw_args_if_needed

  kwrestarg_name = @sexp[1]
  extract_code = "Opal.kwrestargs($kwargs, #{used_kwargs});"

  # kwrestarg can be blank def m(**) end
  # we need to perform assignment only for named kwrestarg
  if kwrestarg_name
    var_name = variable(kwrestarg_name.to_sym)
    add_temp var_name

    line "#{var_name} = #{extract_code}"
  end
end

#used_kwargsObject


30
31
32
33
34
35
36
# File 'opal/lib/opal/nodes/args/kwrestarg.rb', line 30

def used_kwargs
  args = scope.used_kwargs.map do |arg_name|
    "'#{arg_name}': true"
  end

  "{#{args.join ','}}"
end