Sha256: 4efb6b157942c02272beffc578d4898896e7c3bdda6051948b635683017b7281
Contents?: true
Size: 1.25 KB
Versions: 39
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Stored size: 1.25 KB
Contents
# frozen-string-literal: true
#
class Roda
module RodaPlugins
# The delay_build plugin does not build the rack app until
# Roda.app is called, and only rebuilds the rack app if Roda.build!
# is called. This differs from Roda's default behavior, which
# rebuilds the rack app every time the route block changes and
# every time middleware is added if a route block has already
# been defined.
#
# If you are loading hundreds of middleware after a
# route block has already been defined, this can fix a possible
# performance issue, turning an O(n^2) calculation into an
# O(n) calculation, where n is the number of middleware used.
module DelayBuild
module ClassMethods
# If the app is not been defined yet, build the app.
def app
@app || build!
end
# Rebuild the application.
def build!
@build_app = true
build_rack_app
@app
ensure
@build_app = false
end
private
# Do not build the rack app automatically, wait for an
# explicit call to build!.
def build_rack_app
super if @build_app
end
end
end
register_plugin(:delay_build, DelayBuild)
end
end
Version data entries
39 entries across 39 versions & 1 rubygems