Implement Default,Extend and FromIterator for BufferBuilder
#4638
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viirya
reviewed
Aug 3, 2023
arrow-buffer/src/builder/mod.rs
Outdated
| @@ -191,8 +191,7 @@ impl<T: ArrowNativeType> BufferBuilder<T> { | |||
| #[inline] | |||
| pub fn append(&mut self, v: T) { | |||
| self.reserve(1); | |||
| self.buffer.push(v); | |||
| self.len += 1; | |||
| self.extend(iter::once(v)); | |||
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Hmm, for a simply one item append, push seems more efficient?
tustvold
approved these changes
Aug 4, 2023
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Which issue does this PR close?
None.
Rationale for this change
Provide additional methods to construct and extend these builders.
What changes are included in this PR?
Trait implementations of
Default(an empty buffer),Extend(extend the underlying buffer, update the length) andFromIterator(create a default builder and extend it) forBufferBuilder.Are there any user-facing changes?
Yes, users can now use these traits with
BufferBuilder.