Class: Opal::Nodes::BaseSuperNode

Inherits:
Base show all
Defined in:
opal/lib/opal/nodes/super.rb

Overview

This base class is used just to child the find_super_dispatcher method body. This is then used by actual super calls, or a defined?(super) style call.

Direct Known Subclasses

DefinedSuperNode, SuperNode

Constant Summary

Constants included from Helpers

Helpers::RESERVED

Instance Attribute Summary

Attributes inherited from Base

#compiler, #type

Instance Method Summary collapse

Methods inherited from Base

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

Methods included from Helpers

#current_indent, #empty_line, #indent, #js_falsy, #js_truthy, #js_truthy_optimize, #line, #lvar_to_js, #mid_to_jsid, #property, #reserved?, #variable

Constructor Details

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

Instance Method Details

#args ⇒ Object 



42
43
44
 
# File 'opal/lib/opal/nodes/super.rb', line 42

def args
  arglist || s(:arglist)
end

#compile_dispatcher ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'opal/lib/opal/nodes/super.rb', line 11

def compile_dispatcher
  if arglist or iter
    iter = expr(iter_sexp)
  else
    scope.uses_block!
    iter = '$iter'
  end
  if scope.def?
    scope.uses_block!
    scope_name = scope.identify!
    class_name = scope.parent.name ? "$#{scope.parent.name}" : 'self._klass._proto'

    if scope.defs
      push "$opal.find_super_dispatcher(self, '#{scope.mid.to_s}', #{scope_name}, "
      push iter
      push ", #{class_name})"
    else
      push "$opal.find_super_dispatcher(self, '#{scope.mid.to_s}', #{scope_name}, "
      push iter
      push ")"
    end
  elsif scope.iter?
    chain, cur_defn, mid = scope.get_super_chain
    trys = chain.map { |c| "#{c}._def" }.join(' || ')

    push "$opal.find_iter_super_dispatcher(self, #{mid}, (#{trys} || #{cur_defn}), null)"
  else
    raise "Cannot call super() from outside a method block"
  end
end

#iter_sexp ⇒ Object 



46
47
48
 
# File 'opal/lib/opal/nodes/super.rb', line 46

def iter_sexp
  iter || s(:js_tmp, 'null')
end