saikrishna1-bidgely commented on PR #4908:
URL:
https://github.com/apache/arrow-datafusion/pull/4908#issuecomment-1398775889
@alamb I finally got a way to implement overloading using Traits.
```rust
use std::vec;
fn main() {
struct PATH {
}
impl PATH {
pub fn new() -> Self {
Self {
}
}
}
pub trait Reader<T>: Sized {
fn read_csv(&self, value: T) -> i32;
}
impl<'a> Reader<&'a str> for PATH {
fn read_csv(&self, p: &'a str) -> i32 {
self.read_csv(vec![p])
}
}
impl<'a> Reader<Vec<&'a str>> for PATH {
fn read_csv(&self, v: Vec<&'a str>) -> i32 {
v.len() as i32
}
}
let p = PATH::new();
println!("{:?}", p.read_csv("path"));
println!("{:?}", p.read_csv(vec!["path", "paths2"]));
}
```
This way, callees using `str` or `String` can continue using the function
and we can add support for vector/iterators. I will write a more general
solution for read functions.
I tried to implement using Enum and Union but I wasn't able to do so and
they will change the function signature.
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