Class: Opal::Nodes::ClassNode

Inherits:
ModuleNode show all
Defined in:
opal/lib/opal/nodes/class.rb

Instance Attribute Summary

Attributes inherited from ScopeNode

#await_encountered, #block_name, #catch_return, #defs, #gvars, #has_break, #has_retry, #identity, #ivars, #locals, #methods, #mid, #name, #parent, #rescue_else_sexp, #scope_name

Attributes inherited from Base

#compiler, #sexp, #type

Attributes included from Opal::Nodes::Closure::NodeSupport

#closure

Instance Method Summary collapse

Methods inherited from ScopeNode

#accepts_using?, #add_arg, #add_proto_ivar, #add_scope_gvar, #add_scope_ivar, #add_scope_local, #add_scope_temp, #class?, #class_scope?, #collect_refinements_temps, #current_rescue, #def?, #def_in_class?, #defines_lambda, #find_parent_def, #gen_retry_id, #has_local?, #has_rescue_else?, #has_temp?, #identify!, #in_ensure, #in_ensure?, #in_resbody, #in_resbody?, #in_rescue, #in_scope, #in_while?, #initialize, #is_lambda!, #iter?, #lambda?, #lambda_definition?, #module?, #nesting, #new_refinements_temp, #new_temp, #next_temp, #pop_while, #prepare_block, #prepend_scope_temp, #push_while, #queue_temp, #refinements_temp, #relative_access, #sclass?, #scope_locals, #self, #super_chain, #to_vars, #top?, #uses_block!, #uses_block?

Methods inherited from Base

#add_gvar, #add_ivar, #add_local, #add_temp, #children, children, #class_variable_owner, #class_variable_owner_nesting_level, #comments, #compile_to_fragments, #error, #expr, #expr?, #expr_or_empty, #expr_or_nil, #fragment, handle, handlers, #has_rescue_else?, #helper, #in_ensure, #in_ensure?, #in_resbody, #in_resbody?, #in_rescue, #in_while?, #initialize, #process, #push, #recv, #recv?, #s, #scope, #source_location, #stmt, #stmt?, #top_scope, truthy_optimize?, #unshift, #while_loop, #with_temp, #wrap

Methods included from Opal::Nodes::Closure::NodeSupport

#closure_is?, #compile_catcher, #generate_thrower, #generate_thrower_without_catcher, #in_closure, #pop_closure, #push_closure, #select_closure, #thrower

Methods included from Helpers

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

Constructor Details

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

Instance Method Details

#compile ⇒ Object 



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# File 'opal/lib/opal/nodes/class.rb', line 12

def compile
  name, base = name_and_base
  helper :klass

  if body.nil?
    # Simplified compile for empty body
    if stmt?
      unshift '$klass(', base, ', ', super_code, ", '#{name}')"
    else
      unshift '($klass(', base, ', ', super_code, ", '#{name}'), nil)"
    end
  else
    line "  var self = $klass($base, $super, '#{name}');"
    in_scope do
      scope.name = name
      in_closure(Closure::MODULE | Closure::JS_FUNCTION) do
        compile_body
      end
    end

    if await_encountered
      await_begin = '(await '
      await_end = ')'
      async = 'async '
      parent.await_encountered = true
    else
      await_begin, await_end, async = '', '', ''
    end

    unshift "#{await_begin}(#{async}function($base, $super#{', $parent_nesting' if @define_nesting}) {"
    line '})(', base, ', ', super_code, "#{', ' + scope.nesting if @define_nesting})#{await_end}"
  end
end

#super_code ⇒ Object 



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# File 'opal/lib/opal/nodes/class.rb', line 46

def super_code
  sup ? expr(sup) : 'null'
end