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Contents
# frozen_string_literal: true
# Calls a [lambda](https://puppet.com/docs/puppet/latest/lang_lambdas.html)
# with the given arguments and returns the result.
#
# Since a lambda's scope is
# [local](https://puppet.com/docs/puppet/latest/lang_lambdas.html#lambda-scope)
# to the lambda, you can use the `with` function to create private blocks of code within a
# class using variables whose values cannot be accessed outside of the lambda.
#
# @example Using `with`
#
# ```puppet
# # Concatenate three strings into a single string formatted as a list.
# $fruit = with("apples", "oranges", "bananas") |$x, $y, $z| {
# "${x}, ${y}, and ${z}"
# }
# $check_var = $x
# # $fruit contains "apples, oranges, and bananas"
# # $check_var is undefined, as the value of $x is local to the lambda.
# ```
#
# @since 4.0.0
#
Puppet::Functions.create_function(:with) do
dispatch :with do
repeated_param 'Any', :arg
block_param
end
def with(*args)
yield(*args)
end
end
Version data entries
32 entries across 32 versions & 1 rubygems