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#[derive(Debug, Clone)]
#[doc(hidden)]
pub struct StringVec {
vec: Vec<String>,
}
impl std::ops::Deref for StringVec {
type Target = Vec<String>;
fn deref(&self) -> &Self::Target {
&self.vec
}
}
impl From<StringVec> for Vec<String> {
fn from(val: StringVec) -> Self {
val.vec
}
}
impl<const N: usize> From<[&str; N]> for StringVec {
fn from(slice: [&str; N]) -> Self {
StringVec {
vec: slice.iter().map(|&s| s.to_string()).collect(),
}
}
}
impl From<&[&str]> for StringVec {
fn from(slice: &[&str]) -> Self {
StringVec {
vec: slice.iter().map(|&s| s.to_string()).collect(),
}
}
}
impl From<Vec<String>> for StringVec {
fn from(vec: Vec<String>) -> Self {
StringVec { vec }
}
}
impl From<&[String]> for StringVec {
fn from(slice: &[String]) -> Self {
StringVec {
vec: slice.to_vec(),
}
}
}
impl From<Vec<&str>> for StringVec {
fn from(vec: Vec<&str>) -> Self {
StringVec {
vec: vec.iter().map(|&s| s.to_string()).collect(),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_string_vec_from_array() {
let sv = StringVec::from(["a", "b", "c"]);
assert_eq!(sv.vec, vec!["a", "b", "c"]);
}
#[test]
fn test_string_vec_from_slice_ref() {
let arr = ["x", "y"];
let sv = StringVec::from(&arr[..]);
assert_eq!(sv.vec, vec!["x", "y"]);
}
#[test]
fn test_string_vec_from_vec_string() {
let original = vec!["one".to_string(), "two".to_string()];
let sv = StringVec::from(original.clone());
assert_eq!(sv.vec, original);
}
#[test]
fn test_string_vec_from_slice_string() {
let original = vec!["a".to_string(), "b".to_string()];
let sv = StringVec::from(&original[..]);
assert_eq!(sv.vec, original);
}
#[test]
fn test_string_vec_from_vec_str() {
let sv = StringVec::from(vec!["hello", "world"]);
assert_eq!(sv.vec, vec!["hello", "world"]);
}
#[test]
fn test_string_vec_deref() {
let sv = StringVec::from(["alpha", "beta"]);
let inner: &Vec<String> = &*sv;
assert_eq!(inner.len(), 2);
assert_eq!(inner[0], "alpha");
}
#[test]
fn test_string_vec_into_vec() {
let sv = StringVec::from(["foo", "bar"]);
let v: Vec<String> = sv.into();
assert_eq!(v, vec!["foo", "bar"]);
}
#[test]
fn test_string_vec_empty_from_empty_array() {
let sv = StringVec::from([] as [&str; 0]);
assert!(sv.vec.is_empty());
}
}
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