79 lines
2.0 KiB
Rust
79 lines
2.0 KiB
Rust
use crate::CollectionRef;
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use glib::translate::ToGlibPtr;
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use std::ffi::CStr;
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trait AsNonnullPtr
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where
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Self: Sized,
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{
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fn as_nonnull_ptr(&self) -> Option<Self>;
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}
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impl<T> AsNonnullPtr for *mut T {
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fn as_nonnull_ptr(&self) -> Option<Self> {
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if self.is_null() {
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None
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} else {
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Some(*self)
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}
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}
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}
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impl CollectionRef {
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/// Get the collection ID from this `CollectionRef`.
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///
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/// # Returns
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/// Since the value may not be valid UTF-8, `&CStr` is returned. You can safely turn it into a
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/// `&str` using the `as_str` method.
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///
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/// If no collection ID was set in the `CollectionRef`, `None` is returned.
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pub fn collection_id(&self) -> Option<&CStr> {
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let inner = self.to_glib_none();
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unsafe {
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(*inner.0)
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.collection_id
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.as_nonnull_ptr()
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.map(|ptr| CStr::from_ptr(ptr))
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}
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}
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/// Get the ref name from this `CollectionRef`.
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///
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/// # Returns
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/// Since the value may not be valid UTF-8, `&CStr` is returned. You can safely turn it into a
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/// `&str` using the `as_str` method.
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pub fn ref_name(&self) -> &CStr {
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let inner = self.to_glib_none();
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unsafe { CStr::from_ptr((*inner.0).ref_name) }
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn should_get_collection_id() {
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let collection_ref = CollectionRef::new(Some("collection.id"), "ref").unwrap();
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let id = collection_ref.collection_id().unwrap().to_str().unwrap();
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assert_eq!(id, "collection.id");
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}
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#[test]
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fn should_get_none_collection_id() {
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let collection_ref = CollectionRef::new(None, "ref").unwrap();
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let id = collection_ref.collection_id();
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assert_eq!(id, None);
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}
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#[test]
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fn should_get_ref_name() {
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let collection_ref = CollectionRef::new(Some("collection.id"), "ref-name").unwrap();
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let ref_name = collection_ref.ref_name().to_str().unwrap();
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assert_eq!(ref_name, "ref-name");
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}
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}
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