uefi: Clear the Vec in DevicePathBuilder::with_vec #794
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Previously there was an implicit assumption that the `Vec` was empty; clear it to ensure this.
phip1611
reviewed
May 8, 2023
| @@ -83,8 +83,11 @@ impl<'a> DevicePathBuilder<'a> { | |||
| } | |||
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| /// Create a builder backed by a `Vec`. | |||
| /// | |||
| /// The `Vec` is cleared before use. | |||
| #[cfg(feature = "alloc")] | |||
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Why doesn't the method create the vector itself now?
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For performance. clear doesn't free any memory, it just resets the initialized length. So you could use Vec::with_capacity to preallocate before building the device path.
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Previously there was an implicit assumption that the
Vecwas empty; clear it to ensure this.Checklist