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//! I provide generic wrappers around `Borrow<str>` types,
//! guaranteeing that their underlying string is a valid IRI or IRI reference.
use super::resolve::{BaseIri, BaseIriRef};
use super::{is_absolute_iri_ref, is_valid_iri_ref, wrap, InvalidIri, IsIri, IsIriRef, Result};
use std::borrow::Borrow;
use std::fmt::Display;
wrap! { Iri borrowing str :
/// This wrapper guarantees that the underlying `str`
/// satisfies the `IRI` rule in RFC-3687
/// (i.e. an absolute IRI with an optional fragment).
pub fn new(iri: T) -> Result<Self, InvalidIri> {
if is_absolute_iri_ref(iri.borrow()) {
Ok(Iri(iri))
} else {
Err(InvalidIri(iri.borrow().to_string()))
}
}
/// Resolve a relative IRI reference against this one.
///
/// NB: when resolving multiple IRI references against the same base,
/// it is preferable to first turn it into a [`BaseIri`],
/// with the [`Iri::as_base`] or [`Iri::to_base`] methods.
pub fn resolve<U: IsIriRef>(&self, rel: U) -> Iri<String> {
self.as_base().resolve(rel)
}
/// Borrow this IRI as a [`BaseIri`]
/// providing more efficient and flexible resolution methods than [`Iri::resolve`].
pub fn as_base(&self) -> BaseIri<&str> {
BaseIri::new(self.0.borrow()).unwrap()
}
/// Turn this IRI into a [`BaseIri`]
/// providing more efficient and flexible resolution methods than [`Iri::resolve`].
pub fn to_base(self) -> BaseIri<T>
where
T: std::ops::Deref<Target = str>,
{
BaseIri::new(self.0).unwrap()
}
}
impl<T: Borrow<str>> IsIriRef for Iri<T> {}
impl<T: Borrow<str>> IsIri for Iri<T> {}
impl<T: Borrow<str>> Display for Iri<T> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.0.borrow())
}
}
//
wrap! { IriRef borrowing str :
/// This wrapper guarantees that the underlying `str`
/// satisfies the `irelative-ref` rule in RFC-3687
/// (i.e. an absolute or relative IRI reference).
pub fn new(iri: T) -> Result<Self, InvalidIri> {
if is_valid_iri_ref(iri.borrow()) {
Ok(IriRef(iri))
} else {
Err(InvalidIri(iri.borrow().to_string()))
}
}
/// Resolve a relative IRI reference against this one.
///
/// NB: when resolving multiple IRI references against the same base,
/// it is preferable to first turn it into a [`BaseIriRef`],
/// with the [`IriRef::as_base`] or [`IriRef::to_base`] methods.
pub fn resolve<U: IsIriRef>(&self, rel: U) -> IriRef<String> {
self.as_base().resolve(rel)
}
/// Borrow this IRI as a [`BaseIriRef`]
/// providing more efficient and flexible resolution methods than [`IriRef::resolve`].
pub fn as_base(&self) -> BaseIriRef<&str> {
BaseIriRef::new(self.0.borrow()).unwrap()
}
/// Turn this IRI into a [`BaseIriRef`]
/// providing more efficient and flexible resolution methods than [`IriRef::resolve`].
pub fn to_base(self) -> BaseIriRef<T>
where
T: std::ops::Deref<Target = str>,
{
BaseIriRef::new(self.0).unwrap()
}
}
impl<T: Borrow<str>> IsIriRef for IriRef<T> {}
impl<T: Borrow<str>> Display for IriRef<T> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.0.borrow())
}
}
//
#[cfg(test)]
mod test {
use super::*;
use crate::test::*;
#[test]
fn iri() {
for (txt, (abs, ..)) in POSITIVE_IRIS {
assert!(Iri::new(*txt).is_ok() == *abs);
}
for txt in NEGATIVE_IRIS {
assert!(Iri::new(*txt).is_err());
}
}
#[test]
fn iri_box() {
for (txt, (abs, ..)) in POSITIVE_IRIS {
assert!(Iri::new(Box::from(txt as &str)).is_ok() == *abs);
}
for txt in NEGATIVE_IRIS {
assert!(Iri::new(Box::from(txt as &str)).is_err());
}
}
#[test]
fn iri_ref() {
for (txt, _) in POSITIVE_IRIS {
assert!(IriRef::new(*txt).is_ok());
}
for txt in NEGATIVE_IRIS {
assert!(IriRef::new(*txt).is_err());
}
for (txt, _) in RELATIVE_IRIS {
assert!(IriRef::new(*txt).is_ok());
}
}
#[test]
fn iri_ref_box() {
for (txt, _) in POSITIVE_IRIS {
assert!(IriRef::new(Box::from(txt as &str)).is_ok());
}
for txt in NEGATIVE_IRIS {
assert!(IriRef::new(Box::from(txt as &str)).is_err());
}
for (txt, _) in RELATIVE_IRIS {
assert!(IriRef::new(Box::from(txt as &str)).is_ok());
}
}
#[test]
fn heterogeneous_comparison() {
let iri1 = Iri::new(String::from("http://example.com/")).unwrap();
let iri2 = Iri::new_unchecked(iri1.as_str());
assert_eq!(iri1, iri2);
}
}