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visionkit/
recognized_item.rs

1use core::ffi::c_char;
2use core::ptr;
3
4use crate::error::VisionKitError;
5use crate::ffi;
6use crate::private::{error_from_status, parse_area_support_info_ptr};
7use crate::support::AreaSupportInfo;
8
9pub struct RecognizedItem;
10
11impl RecognizedItem {
12    pub fn support_info() -> Result<AreaSupportInfo, VisionKitError> {
13        let mut support_json: *mut c_char = ptr::null_mut();
14        let mut err_msg: *mut c_char = ptr::null_mut();
15        let status = unsafe {
16            ffi::recognized_item::vk_recognized_item_support_json(&mut support_json, &mut err_msg)
17        };
18        if status == ffi::status::OK {
19            unsafe { parse_area_support_info_ptr(support_json, "RecognizedItem support info") }
20        } else {
21            Err(unsafe { error_from_status(status, err_msg) })
22        }
23    }
24
25    pub fn is_available_on_current_platform() -> Result<bool, VisionKitError> {
26        Ok(Self::support_info()?.available_on_current_platform)
27    }
28}