Enclose

可用

Structured error handling. `Enclose` evaluates its body; a `Confirm*` inside

形式

Enclose[expr]

Enclose[expr, f]

Enclose[expr, "prop"]

Enclose[expr, handler, form]

验证过的示例Enclose[Confirm[5] + 2] → 7 Enclose[Confirm[0]] → 0 Enclose[$Failed] → $Failed Enclose[Confirm[$Failed]]["ConfirmationType"] → Confirm Enclose[Confirm[$Failed]]["Tag"] → ConfirmationFailed Enclose[ConfirmBy[3, NumberQ] + 2] → 5 Enclose[ConfirmBy["a", NumberQ]]["Function"] → NumberQ Enclose[ConfirmMatch["a", _Integer]]["Pattern"] → _Integer Enclose[ConfirmAssert[1 > 2]]["HeldTest"] → Hold[1 > 2]Enclose[ConfirmQuiet[Log[0]]] → -Infinity Enclose[Confirm[$Failed], "Tag"] → ConfirmationFailed Enclose[Confirm[$Failed], Head] → Failure

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相关

Confirm ConfirmBy ConfirmMatch ConfirmQuiet ConfirmAssert Failure Check Catch Throw Exception ExceptionQ ExceptionTypeRegisteredQ

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