Sha256: 36155afe19e2fae7439a99c07be81b75ba6b3f21df5186c3abf030d8f7316b4a
Contents?: true
Size: 1.16 KB
Versions: 25
Compression:
Stored size: 1.16 KB
Contents
# frozen_string_literal: true
module Parser
# Context of parsing that is represented by a stack of scopes.
#
# Supported states:
# + :class - in the class body (class A; end)
# + :sclass - in the singleton class body (class << obj; end)
# + :def - in the method body (def m; end)
# + :defs - in the singleton method body (def self.m; end)
# + :block - in the block body (tap {})
# + :lambda - in the lambda body (-> {})
#
class Context
attr_reader :stack
def initialize
@stack = []
freeze
end
def push(state)
@stack << state
end
def pop
@stack.pop
end
def reset
@stack.clear
end
def in_class?
@stack.last == :class
end
def indirectly_in_def?
@stack.include?(:def) || @stack.include?(:defs)
end
def class_definition_allowed?
def_index = stack.rindex { |item| [:def, :defs].include?(item) }
sclass_index = stack.rindex(:sclass)
def_index.nil? || (!sclass_index.nil? && sclass_index > def_index)
end
alias module_definition_allowed? class_definition_allowed?
alias dynamic_const_definition_allowed? class_definition_allowed?
end
end
Version data entries
25 entries across 23 versions & 6 rubygems