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Contents
module VirtualBox
module COM
# Represents a C enum type. Provides functionality to easily convert
# an int value to its proper symbol within the enum.
class AbstractEnum
extend Enumerable
class << self
# Defines the mapping of int => symbol for the given Enum.
# The parameter to this can be an Array or Hash or anything which
# can be indexed with `[]` and an integer and returns a value of
# some sort. If value is left nil, it will return the current mapping
def map(value = nil)
@map = value if value
@map
end
# Returns the symbol associatd with the given key
def [](key)
@map[key]
end
# Returns the index associated with a value
def index(key)
@map.index(key)
end
# Iterate over the enum, yielding each item to a block.
def each
@map.each do |key|
yield key
end
end
# Provided mostly for testing purposes only, but resets the mapping
# to nil.
def reset!
@map = nil
end
end
end
end
end
Version data entries
19 entries across 19 versions & 3 rubygems