Sha256: 9877c0b7bfe41e1b1aede6edf450bf2dbcc2e2fb4dbdc2f4a781a98d936a045d
Contents?: true
Size: 658 Bytes
Versions: 33
Compression:
Stored size: 658 Bytes
Contents
# frozen_string_literal: true
module Parser
# Stack that holds names of current arguments,
# i.e. while parsing
# def m1(a = (def m2(b = def m3(c = 1); end); end)); end
# ^
# stack is [:a, :b, :c]
#
# Emulates `p->cur_arg` in MRI's parse.y
#
# @api private
#
class CurrentArgStack
attr_reader :stack
def initialize
@stack = []
freeze
end
def push(value)
@stack << value
end
def set(value)
pop
push(value)
end
def pop
@stack.pop
end
def reset
@stack.clear
end
def top
@stack.last
end
end
end
Version data entries
33 entries across 30 versions & 6 rubygems