ByteBaker commented on issue #6553:
URL: https://github.com/apache/arrow-rs/issues/6553#issuecomment-2423257712
I'm a bit confused about the definition of this macro (and subsequent import
implications).
1. If I wanna use it inside `arrow-array::record_batch` (for tests), I need
to use `crate::<some type>` in the macro definition.
2. Doing (1) would mean I cannot use it in code outside `arrow-array`
because for that, I must have `arrow_array::<some type>` in the macro
definition.
3. **1** & **2** are mutually exclusive.
For example:
```rust
/// Works where `arrow_array` is a dependency
#[macro_export]
macro_rules! create_array {
(@array_of Boolean) => { arrow_array::BooleanArray };
// Other types here
($ty: tt, [$($values: expr),*]) => {
std::sync::Arc::new(<crate::create_array!(@array_of
$ty)>::from(vec![$($values),*]))
};
}
```
This works inside `arrow_array`
```rust
#[macro_export]
macro_rules! create_array {
(@array_of Boolean) => { crate::BooleanArray };
// Other types here
($ty: tt, [$($values: expr),*]) => {
std::sync::Arc::new(<crate::create_array!(@array_of
$ty)>::from(vec![$($values),*]))
};
}
```
@alamb @timsaucer some help please.
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