class Rake::InvocationChain
InvocationChain tracks the chain of task invocations to detect circular dependencies.
Constants
- EMPTY
Public Class Methods
append(invocation, chain)
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Class level append.
# File lib/rake/invocation_chain.rb, line 28 def self.append(invocation, chain) chain.append(invocation) end
Public Instance Methods
append(invocation)
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Append an invocation to the chain of invocations. It is an error if the invocation already listed.
# File lib/rake/invocation_chain.rb, line 15 def append(invocation) if member?(invocation) fail RuntimeError, "Circular dependency detected: #{to_s} => #{invocation}" end conj(invocation) end
member?(invocation)
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Is the invocation already in the chain?
# File lib/rake/invocation_chain.rb, line 9 def member?(invocation) head == invocation || tail.member?(invocation) end
to_s()
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Convert to string, ie: TOP => invocation => invocation
# File lib/rake/invocation_chain.rb, line 23 def to_s "#{prefix}#{head}" end
Private Instance Methods
prefix()
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# File lib/rake/invocation_chain.rb, line 34 def prefix "#{tail} => " end