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use crate::uses::*;
impl<T> Cast<Option<T>> for Result<T, String> {
fn to(v: Option<T>) -> Self {
v.ok_or("Is None".into())
}
}
impl<T, E: std::fmt::Display> Cast<Result<T, E>> for Result<T, String> {
fn to(v: Result<T, E>) -> Self {
v.map_err(|e| {
let t = type_name!(T);
if "String" == t {
e.to_string()
} else {
CONCAT!(&t, ": ", &e.to_string())
}
})
}
}
pub trait UniformUnwrap<T> {
fn uni_or_else<F: FnOnce(&str) -> T>(self, op: F) -> T;
}
impl<T> UniformUnwrap<T> for Option<T> {
fn uni_or_else<F: FnOnce(&str) -> T>(self, op: F) -> T {
self.unwrap_or_else(|| op("Is None"))
}
}
impl<T, R: std::fmt::Display> UniformUnwrap<T> for Result<T, R> {
fn uni_or_else<F: FnOnce(&str) -> T>(self, op: F) -> T {
self.unwrap_or_else(|e| op(&e.to_string()))
}
}
pub trait UniformUnwrapOrDefault<T: Default> {
fn uni_is_err(&self) -> bool;
fn uni_err(self) -> (T, String);
}
impl<T: Default> UniformUnwrapOrDefault<T> for Option<T> {
fn uni_is_err(&self) -> bool {
self.is_none()
}
fn uni_err(self) -> (T, String) {
(Def(), "Is None".into())
}
}
impl<T: Default, R: std::fmt::Display> UniformUnwrapOrDefault<T> for Result<T, R> {
fn uni_is_err(&self) -> bool {
self.is_err()
}
fn uni_err(self) -> (T, String) {
(Def(), self.err().unwrap().to_string())
}
}