76 lines
2 KiB
Rust
76 lines
2 KiB
Rust
use automerge as am;
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use std::cell::RefCell;
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use std::ffi::CString;
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use crate::obj::AMobjId;
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use crate::result::AMvalue;
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/// \struct AMobjItem
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/// \installed_headerfile
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/// \brief An item in an object.
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#[repr(C)]
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pub struct AMobjItem {
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/// The object identifier of an item in an object.
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obj_id: AMobjId,
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/// The value of an item in an object.
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value: (am::Value<'static>, RefCell<Option<CString>>),
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}
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impl AMobjItem {
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pub fn new(value: am::Value<'static>, obj_id: am::ObjId) -> Self {
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Self {
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obj_id: AMobjId::new(obj_id),
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value: (value, Default::default()),
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}
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}
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}
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impl PartialEq for AMobjItem {
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fn eq(&self, other: &Self) -> bool {
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self.obj_id == other.obj_id && self.value.0 == other.value.0
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}
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}
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impl From<&AMobjItem> for (am::Value<'static>, am::ObjId) {
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fn from(obj_item: &AMobjItem) -> Self {
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(obj_item.value.0.clone(), obj_item.obj_id.as_ref().clone())
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}
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}
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/// \memberof AMobjItem
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/// \brief Gets the object identifier of an item in an object.
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///
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/// \param[in] obj_item A pointer to an `AMobjItem` struct.
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/// \return A pointer to an `AMobjId` struct.
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/// \pre \p obj_item `!= NULL`.
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/// \internal
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///
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/// # Safety
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/// obj_item must be a valid pointer to an AMobjItem
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#[no_mangle]
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pub unsafe extern "C" fn AMobjItemObjId(obj_item: *const AMobjItem) -> *const AMobjId {
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if let Some(obj_item) = obj_item.as_ref() {
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&obj_item.obj_id
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} else {
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std::ptr::null()
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}
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}
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/// \memberof AMobjItem
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/// \brief Gets the value of an item in an object.
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///
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/// \param[in] obj_item A pointer to an `AMobjItem` struct.
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/// \return An `AMvalue` struct.
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/// \pre \p obj_item `!= NULL`.
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/// \internal
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///
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/// # Safety
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/// obj_item must be a valid pointer to an AMobjItem
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#[no_mangle]
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pub unsafe extern "C" fn AMobjItemValue<'a>(obj_item: *const AMobjItem) -> AMvalue<'a> {
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if let Some(obj_item) = obj_item.as_ref() {
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(&obj_item.value.0, &obj_item.value.1).into()
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} else {
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AMvalue::Void
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}
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}
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