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use crate::{Strong, Validator};
pub use imp::StrongBuf;
mod imp {
#[cfg(feature = "diesel")]
use crate::impl_diesel::SqlStrong;
use crate::{Strong, Validator};
use std::{marker::PhantomData, ops::Deref};
#[cfg_attr(
feature = "diesel",
derive(FromSqlRow, AsExpression),
sql_type = "SqlStrong<Ctx>"
)]
pub struct StrongBuf<Ctx: Validator> {
phantom: PhantomData<Ctx>,
inner: String
}
impl<Ctx: Validator> StrongBuf<Ctx> {
#[inline]
pub fn validate(s: String) -> Result<Self, Ctx::Err> {
Ctx::validate(&s)?;
Ok(unsafe { Self::no_validate(s) })
}
#[inline]
pub unsafe fn no_validate(s: String) -> Self {
Self {
inner: s,
phantom: PhantomData
}
}
#[inline]
pub fn into_string(self) -> String { self.inner }
#[inline]
pub fn as_strong(&self) -> &Strong<Ctx> { self }
}
impl<Ctx> Deref for StrongBuf<Ctx>
where
Ctx: Validator
{
type Target = Strong<Ctx>;
#[inline]
fn deref(&self) -> &Strong<Ctx> { unsafe { Strong::no_validate(&self.inner) } }
}
}
impl<Ctx: Validator> StrongBuf<Ctx> {
#[inline]
pub unsafe fn from_utf8_unchecked(bytes: Vec<u8>) -> Self {
Self::no_validate(String::from_utf8_unchecked(bytes))
}
}
impl<Ctx> std::borrow::Borrow<Strong<Ctx>> for StrongBuf<Ctx>
where
Ctx: Validator
{
#[inline]
fn borrow(&self) -> &Strong<Ctx> { self }
}
impl<Ctx> Clone for StrongBuf<Ctx>
where
Ctx: Validator
{
#[inline]
fn clone(&self) -> Self { unsafe { Self::from_utf8_unchecked(self.as_bytes().to_owned()) } }
}