ddidderr
126da77a37
rustfmt.toml sets group_imports, imports_granularity and imports_layout, which are nightly-only; agents formatted with stable rustfmt, which ignored them. This is a formatting-only pass with `cargo +nightly fmt`. Test Plan: - cargo clippy --workspace --all-targets -- -D warnings - cargo test --workspace
40 lines
925 B
Rust
40 lines
925 B
Rust
//! Weak object references (port of `apprt/gtk/weak_ref.zig`). glib-rs
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//! already provides `glib::WeakRef<T>`; this wrapper keeps the Zig API
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//! (`set`/`get`/`empty`).
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use gtk::{glib, glib::prelude::*};
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/// A weak reference to a GObject of type `T`.
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#[derive(Debug, Default)]
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pub struct WeakRef<T: ObjectType>(glib::WeakRef<T>);
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impl<T: ObjectType> WeakRef<T> {
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/// An empty weak reference.
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pub fn empty() -> Self {
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Self(glib::WeakRef::new())
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}
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pub fn set(&self, v: Option<&T>) {
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self.0.set(v);
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}
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pub fn get(&self) -> Option<T> {
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self.0.upgrade()
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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 weak_ref() {
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let r: WeakRef<glib::Object> = WeakRef::empty();
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let obj = glib::Object::new::<glib::Object>();
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r.set(Some(&obj));
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assert!(r.get().is_some());
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drop(obj);
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assert!(r.get().is_none());
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}
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}
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