Sha256: b7f68c82bea6ab32c1e7fc46860d8d0012936fa9204b5a41fdb6e8395d2f21b9
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Size: 1.59 KB
Versions: 12
Compression:
Stored size: 1.59 KB
Contents
require 'set'
module Datacaster
module Runtimes
class Base
attr_reader :reserved_instance_variables
def self.call(r, proc, *args)
r.before_call!(r)
result = r.instance_exec(*args, &proc)
r.after_call!(r)
result
end
def self.send_to_parent(r, m, *args, &block)
parent = r.instance_variable_get(:@parent)
not_found!(m) if parent.nil?
call(parent, -> { public_send(m, *args, &block) })
end
def self.not_found!(m)
raise NoMethodError.new("Method #{m.inspect} is not available in current runtime context")
end
def initialize(parent = nil)
@parent = parent
# We won't be setting any instance variables outside this
# constructor, so we can proxy all the rest to the @object
@reserved_instance_variables = Set.new(instance_variables + [:@reserved_instance_variables])
end
def method_missing(m, *args, &block)
self.class.send_to_parent(self, m, *args, &block)
end
def respond_to_missing?(m, include_private = false)
!@parent.nil? && @parent.respond_to?(m, include_private)
end
def after_call!(sender)
@parent.after_call!(sender) if @parent
end
def before_call!(sender)
@parent.before_call!(sender) if @parent
end
def inspect
"#<#{self.class.name} parent: #{@parent.inspect}>"
end
def to_s
inspect
end
def Success(v)
Datacaster.ValidResult(v)
end
def Failure(v)
Datacaster.ErrorResult(v)
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems