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Versions: 6
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Stored size: 1017 Bytes
Contents
module Tap
module Support
# Constrains an Executable to only _execute once, and provides several
# methods making the Executable behave like a Dependency.
module Dependency
# The audited result of self
attr_accessor :_result
def self.extended(base) # :nodoc:
base.instance_variable_set(:@_result, nil)
end
# Conditional _execute; only calls method_name if
# resolved? is false (thus assuring self will only
# be executed once).
#
# Returns _result.
def _execute(*args)
app.dependencies.resolve(self) do
@_result = super
end unless resolved?
_result
end
# Alias for _execute().
def resolve
_execute
end
# True if _result is non-nil.
def resolved?
@_result != nil
end
# Resets the dependency by setting _result to nil.
def reset
@_result = nil
end
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems