class RuboCop::Cop::AnyCable::InstanceVars
Checks for instance variable usage inside subscriptions.
@example
# bad class MyChannel < ApplicationCable::Channel def subscribed @post = Post.find(params[:id]) stream_from @post end end # good class MyChannel < ApplicationCable::Channel def subscribed post = Post.find(params[:id]) stream_from post end end
Constants
- MSG
Public Instance Methods
on_class(node)
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# File lib/anycable/rails/compatibility/rubocop/cops/anycable/instance_vars.rb, line 30 def on_class(node) find_nested_ivars(node) do |nested_ivar| add_offense(nested_ivar) end end
Private Instance Methods
find_nested_ivars(node) { |child| ... }
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# File lib/anycable/rails/compatibility/rubocop/cops/anycable/instance_vars.rb, line 38 def find_nested_ivars(node, &block) node.each_child_node do |child| if child.ivasgn_type? || child.ivar_type? yield(child) elsif child.children.any? find_nested_ivars(child, &block) end end end