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AbsentSandbox

runtime

Struct AbsentSandbox 

Source 
pub struct AbsentSandbox;
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What a binary built without an execution engine offers: a refusal that names the missing piece.

It exists so the absence is a verdict rather than a stand-in. An echo in this position would answer “success” to a guest that never ran, and the first person to notice would be whoever trusted the output.

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impl<T> Any for T
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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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type Error = !

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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.