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Versions: 12
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Contents
require 'jsduck/logger'
module JsDuck
# Checks for circular dependencies
class CircularDeps
def initialize(classes)
@classes = classes
end
# Checks all classes for circular dependencies.
#
# When found, exits with a fatal error message.
def check_all
@classes.each do |cls|
if chain = check(cls)
Logger.fatal("Class #{cls[:name]} has a circular dependency: #{chain}")
exit 1
end
end
end
# Checks class for circular dependencies.
#
# When all OK, returns false.
#
# When circular dependencies found returns a string describing the
# problematic dependency chain e.g. "Foo extends Bar mixins Foo".
def check(cls, names = [])
names += [cls[:name]]
if cls.parent && chain = track_circular(" extends ", cls.parent, names)
return chain
end
cls.mixins.each do |mixin|
if chain = track_circular(" mixins ", mixin, names)
return chain
end
end
false
end
def track_circular(type, cls, names)
names += [type]
if names.include?(cls[:name])
(names + [cls[:name]]).join("")
else
check(cls, names)
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems