alamb commented on code in PR #6939:
URL: https://github.com/apache/arrow-rs/pull/6939#discussion_r1903108763
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arrow-buffer/src/buffer/immutable.rs:
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@@ -28,8 +28,43 @@ use crate::{bit_util, bytes::Bytes, native::ArrowNativeType};
use super::ops::bitwise_unary_op_helper;
use super::{MutableBuffer, ScalarBuffer};
-/// Buffer represents a contiguous memory region that can be shared with other
buffers and across
-/// thread boundaries.
+/// A contiguous memory region that can be shared with other buffers and across
+/// thread boundaries that stores Arrow data.
+///
+/// `Buffer`s can be sliced and cloned without copying the underlying data and
can
+/// be created from memory allocated by non-Rust sources such as C/C++.
+///
+/// # Example: Create a `Buffer` from a `Vec` (without copying)
Review Comment:
The rest of this PR is driven by the examples: converting to/from
`bytes::Bytes` and `Vec`. I think it will be easier to do this operation now
and not get hung up on `Bytes` vs `bytes::Bytes`
They are basically an expansion of the nice example @kylebarron added in
https://github.com/apache/arrow-rs/pull/6920
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