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USING and conditions: order of evaluation | |||||
When a condition and a using
prefix both apply to an action, the using
prefix applies to both the action and the condition together. That is, the using
prefix is evaluated first, and then, if a condition is present, it is evaluated.
Care must be taken when a using
prefix must be guarded by a condition to prevent an error, because the using
prefix is evaluated before the specification test.
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