Class: Opal::Nodes::GlobalVariableNode

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

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 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

#compile ⇒ Object 



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# File 'opal/lib/opal/nodes/variables.rb', line 89

def compile
  helper :gvars

  if var_name == '&'
    return handle_global_match
  elsif var_name == "'"
    return handle_post_match
  elsif var_name == '`'
    return handle_pre_match
  end

  name = property var_name
  add_gvar name
  push "$gvars#{name}"
end

#handle_global_match ⇒ Object 



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# File 'opal/lib/opal/nodes/variables.rb', line 105

def handle_global_match
  with_temp do |tmp|
    push "((#{tmp} = $gvars['~']) === nil ? nil : #{tmp}['$[]'](0))"
  end
end

#handle_post_match ⇒ Object 



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# File 'opal/lib/opal/nodes/variables.rb', line 117

def handle_post_match
  with_temp do |tmp|
    push "((#{tmp} = $gvars['~']) === nil ? nil : #{tmp}.$post_match())"
  end
end

#handle_pre_match ⇒ Object 



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# File 'opal/lib/opal/nodes/variables.rb', line 111

def handle_pre_match
  with_temp do |tmp|
    push "((#{tmp} = $gvars['~']) === nil ? nil : #{tmp}.$pre_match())"
  end
end

#var_name ⇒ Object 



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# File 'opal/lib/opal/nodes/variables.rb', line 85

def var_name
  name.to_s[1..-1]
end