Weijun-H commented on code in PR #5823:
URL: https://github.com/apache/arrow-rs/pull/5823#discussion_r1623133729
##########
parquet_derive/src/lib.rs:
##########
@@ -160,6 +167,7 @@ pub fn parquet_record_writer(input:
proc_macro::TokenStream) -> proc_macro::Toke
///
/// pub fn read_some_records() -> Vec<ACompleteRecord> {
/// let mut samples: Vec<ACompleteRecord> = Vec::new();
+/// let mut file = tempfile().unwrap();
Review Comment:
It does not work.
```rust
error[E0277]: the trait bound `(): std::io::Write` is not satisfied
--> parquet_derive/src/lib.rs:73:19
|
34 | let mut writer = SerializedFileWriter::new(file, schema,
Default::default()).unwrap();
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait
`std::io::Write` is not implemented for `()`
|
note: required by a bound in `SerializedFileWriter`
--> /Users/hwj/Desktop/rust/arrow-rs/parquet/src/file/writer.rs:141:36
|
141 | pub struct SerializedFileWriter<W: Write> {
| ^^^^^ required by this bound in
`SerializedFileWriter`
```
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