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# frozen-string-literal: true
require_relative "../../spell_checker"
module DidYouMean
class VariableNameChecker
attr_reader :name, :method_names, :lvar_names, :ivar_names, :cvar_names
NAMES_TO_EXCLUDE = { 'foo' => [:fork, :for] }
NAMES_TO_EXCLUDE.default = []
# +VariableNameChecker::RB_RESERVED_WORDS+ is the list of all reserved
# words in Ruby. They could be declared like methods are, and a typo would
# cause Ruby to raise a +NameError+ because of the way they are declared.
#
# The +:VariableNameChecker+ will use this list to suggest a reversed word
# if a +NameError+ is raised and found closest matches, excluding:
#
# * +do+
# * +if+
# * +in+
# * +or+
#
# Also see +MethodNameChecker::RB_RESERVED_WORDS+.
RB_RESERVED_WORDS = %i(
BEGIN
END
alias
and
begin
break
case
class
def
defined?
else
elsif
end
ensure
false
for
module
next
nil
not
redo
rescue
retry
return
self
super
then
true
undef
unless
until
when
while
yield
__LINE__
__FILE__
__ENCODING__
)
def initialize(exception)
@name = exception.name.to_s.tr("@", "")
@lvar_names = exception.respond_to?(:local_variables) ? exception.local_variables : []
receiver = exception.receiver
@method_names = receiver.methods + receiver.private_methods
@ivar_names = receiver.instance_variables
@cvar_names = receiver.class.class_variables
@cvar_names += receiver.class_variables if receiver.kind_of?(Module)
end
def corrections
@corrections ||= SpellChecker
.new(dictionary: (RB_RESERVED_WORDS + lvar_names + method_names + ivar_names + cvar_names))
.correct(name) - NAMES_TO_EXCLUDE[@name]
end
end
end
|
