lwgeom 0.0.5

Rust bindings for the PostGIS LWGEOM geometry library.
Documentation 
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use core::ptr::NonNull;

use lwgeom_sys::*;

use crate::{LWGeom, LWGeomError, Result};

pub struct LWPoly {
    inner: NonNull<LWPOLY>,
}

impl LWPoly {
    fn new_from_raw(p_poly: *mut LWPOLY) -> Result<Self> {
        Ok(Self {
            inner: NonNull::new(p_poly).ok_or(LWGeomError::NullPtrError)?,
        })
    }

    fn inner_ptr(&self) -> *mut LWPOLY {
        self.inner.as_ptr()
    }

    pub fn into_lwgeom(self) -> Result<LWGeom> {
        let p_geom = unsafe { lwpoly_as_lwgeom(self.inner_ptr()) };
        LWGeom::new_from_raw(p_geom)
    }

    pub fn construct_envelope(srid: i32, x1: f64, y1: f64, x2: f64, y2: f64) -> Result<Self> {
        let p_poly = unsafe { lwpoly_construct_envelope(srid, x1, y1, x2, y2) };
        Self::new_from_raw(p_poly)
    }
}

unsafe impl Send for LWPoly {}
unsafe impl Sync for LWPoly {}

// impl Drop for LWPoly {
//     fn drop(&mut self) {
//         unsafe { lwpoly_free(self.inner_ptr()) };
//     }
// }