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use libucl_bind::*;
use super::Object;
use std::convert::From;
use std::ffi::CString;
pub struct Builder {
obj: *mut ucl_object_t
}
impl Builder {
pub fn from_ptr(obj: *mut ucl_object_t) -> Option<Self> {
if !obj.is_null() {
Some(Builder {
obj: obj,
})
} else {
None
}
}
pub fn build(self) -> Object {
Object::from_mut_cptr(self.obj).unwrap()
}
}
impl Into<Object> for Builder {
fn into(self) -> Object {
self.build()
}
}
macro_rules! from_primitive {
($from: ty => $type: ident, $func: ident) => {
impl From<$from> for Builder {
fn from(val: $from) -> Self {
Builder::from_ptr(unsafe { $func(val as $type) }).unwrap()
}
}
};
($from: ty => $primitive: ty, $func: ident) => {
impl From<$from> for Builder {
fn from(val: $from) -> Self {
Builder::from_ptr(unsafe { $func(val as $primitive) }).unwrap()
}
}
};
($from: ty, $func: ident) => {
impl From<$from> for Builder {
fn from(val: $from) -> Self {
Builder::from_ptr(unsafe { $func(val) }).unwrap()
}
}
}
}
from_primitive!(i64 => i64, ucl_object_fromint);
from_primitive!(f64 => libc::c_double, ucl_object_fromdouble);
from_primitive!(bool, ucl_object_frombool);
impl From<String> for Builder {
fn from(val: String) -> Self {
let len = val.len();
let s = CString::new(val).unwrap();
let p = s.as_ptr();
Builder::from_ptr(unsafe { ucl_object_fromlstring(p, len as libc::size_t) }).unwrap()
}
}
impl<'a> From<&'a str> for Builder {
fn from(val: &str) -> Self {
From::from(val.to_string())
}
}