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Contents
require 'thread'
if RUBY_PLATFORM == 'opal'
# Stub thread class
class Thread
def self.current
@current ||= {}
end
end
end
module Volt
# Modes provide a way to effect the state inside of a block that
# can be checked from elsewhere. This is very useful if you have
# some flag you may want to change without needing to pass all
# of the way through some other code.
module Modes
module ClassMethods
# Takes a block that when run, changes to mode inside of it
def run_in_mode(mode_name)
previous = Thread.current[mode_name]
Thread.current[mode_name] = true
begin
yield
ensure
Thread.current[mode_name] = previous
end
end
def run_in_mode_if(conditional, mode_name)
if conditional
# Yes, run in the mode
Volt.run_in_mode(mode_name) do
yield
end
else
# Just run normally
yield
end
end
# Check to see if we are in the specified mode
def in_mode?(mode_name)
defined?(Thread) && Thread.current[mode_name]
end
end
def self.included(base)
base.send :extend, ClassMethods
end
end
end
Version data entries
35 entries across 35 versions & 1 rubygems