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Contents
module Trailblazer
module Operation::Wrap
module Inject
# Returns an Alteration wirings that, when applied, inserts the {ReverseMergeDefaults} task
# before the {Wrap::Call} task. This is meant for macros and steps that accept a dependency
# injection but need a default parameter to be set if not injected.
# @returns ADDS
def self.Defaults(default_dependencies)
Module.new do
extend Activity::Path::Plan()
task ReverseMergeDefaults.new( default_dependencies ),
id: "ReverseMergeDefaults#{default_dependencies}",
before: "task_wrap.call_task"
end
end
# @api private
# @returns Task
# @param Hash list of key/value that should be set if not already assigned/set before (or injected from the outside).
class ReverseMergeDefaults
def initialize(defaults)
@defaults = defaults
end
def call((wrap_ctx, original_args), **circuit_options)
ctx = original_args[0][0]
@defaults.each { |k, v| ctx[k] ||= v }
return Activity::Right, [ wrap_ctx, original_args ]
end
end
end # Inject
end
end
Version data entries
10 entries across 10 versions & 1 rubygems