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Contents
require 'r10k/errors/formatting'
module R10K
module Action
# Implement the Visitor pattern via pseudo double dispatch.
#
# Visitor classes must implement #visit_type methods for each type that may
# be visited. If the visitor should descend into child objects the #visit_
# method should yield to the passed block.
#
# Visitor classes must implement #logger so that error messages can be logged.
#
# @api private
module Visitor
# Dispatch to the type specific visitor method
#
# @param type [Symbol] The object type to dispatch for
# @param other [Object] The actual object to pass to the visitor method
# @param block [Proc] The block that the called visitor method may yield
# to in case recursion is desired.
# @return [void]
def visit(type, other, &block)
send("visit_#{type}", other, &block)
rescue => e
logger.error R10K::Errors::Formatting.format_exception(e, @trace)
@visit_ok = false
end
end
end
end
Version data entries
65 entries across 65 versions & 1 rubygems