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Contents
# encoding: utf-8
module RuboCop
module Cop
# Common functionality for checking modifier nodes.
module AccessModifierNode
extend AST::Sexp
PRIVATE_NODE = s(:send, nil, :private)
PROTECTED_NODE = s(:send, nil, :protected)
PUBLIC_NODE = s(:send, nil, :public)
MODULE_FUNCTION_NODE = s(:send, nil, :module_function)
# Returns true when the node is an access modifier.
def modifier_node?(node)
modifier_structure?(node) && class_or_module_parent?(node)
end
# Returns true when the node looks like an access modifier.
def modifier_structure?(node)
[PRIVATE_NODE,
PROTECTED_NODE,
PUBLIC_NODE,
MODULE_FUNCTION_NODE].include?(node)
end
# Returns true when the parent of what looks like an access modifier
# is a Class or Module. Filters out simple method calls to similarly
# named private, protected or public.
def class_or_module_parent?(node)
node.each_ancestor do |a|
if a.type == :block
return true if class_constructor?(a)
elsif a.type != :begin
return [:casgn, :sclass, :class, :module].include?(a.type)
end
end
end
# Returns true when the block node looks like Class or Module.new do ... .
def class_constructor?(block_node)
send_node = block_node.children.first
receiver_node, method_name, *_ = *send_node
return false unless method_name == :new
%w(Class Module).include?(Util.const_name(receiver_node))
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems