Class: Opal::Nodes::InlineArgs

Inherits:
Base
  • Object
show all
Defined in:
opal/lib/opal/nodes/inline_args.rb

Overview

def args list

Instance Attribute Summary

Attributes inherited from Base

#compiler, #type

Instance Method Summary collapse

Methods inherited from Base

#add_gvar, #add_ivar, #add_local, #add_temp, #children, children, #class_variable_owner, #closest_module_node, #comments, #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

#conditional_send, #current_indent, #empty_line, #indent, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #mid_to_jsid, #property, #valid_name?

Constructor Details

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

Instance Method Details

#add_arg(arg) ⇒ Object

If the argument has a name, we should mark it as an argument for current scope Otherwise, these args will be interpreted in the child scope as local variables

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# File 'opal/lib/opal/nodes/inline_args.rb', line 54

def add_arg(arg)
  arg_name, _ = *arg
  scope.add_arg(arg_name) if arg_name
end

#arg_names ⇒ Object

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# File 'opal/lib/opal/nodes/inline_args.rb', line 14

def arg_names
  done_kwargs = false

  children.inject([]) do |result, arg|
    case arg.type
    when :kwarg, :kwoptarg, :kwrestarg
      unless done_kwargs
        done_kwargs = true
        result << '$kwargs'
      end
      add_arg(arg)
    when :mlhs
      tmp = scope.next_temp
      result << tmp
      scope.mlhs_mapping[arg] = tmp
    when :arg, :optarg
      arg_name, _ = *arg
      if !arg.meta[:inline] && arg_name[0] != '$'
        arg_name = "$#{arg_name}"
      end
      result << arg_name
      add_arg(arg)
    when :restarg
      # To make function.length working
      # in cases like def m(*rest)
      tmp_arg_name = scope.next_temp + "_rest"
      result << tmp_arg_name
      add_arg(arg)
    else
      raise "Unknown argument type #{arg.inspect}"
    end

    result
  end
end

#compile ⇒ Object

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# File 'opal/lib/opal/nodes/inline_args.rb', line 10

def compile
  push(arg_names.join(', '))
end