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use crate::sys;
use std::ffi::{CStr, CString};
#[derive(Debug)]
pub struct SBStringList {
pub raw: sys::SBStringListRef,
}
impl SBStringList {
pub fn new() -> SBStringList {
SBStringList::from(unsafe { sys::CreateSBStringList() })
}
pub fn maybe_wrap(raw: sys::SBStringListRef) -> Option<SBStringList> {
if unsafe { sys::SBStringListIsValid(raw) } {
Some(SBStringList { raw })
} else {
None
}
}
pub fn is_valid(&self) -> bool {
unsafe { sys::SBStringListIsValid(self.raw) }
}
pub fn is_empty(&self) -> bool {
unsafe { sys::SBStringListGetSize(self.raw) == 0 }
}
pub fn clear(&self) {
unsafe { sys::SBStringListClear(self.raw) };
}
pub fn append_string(&self, string: &str) {
let string = CString::new(string).unwrap();
unsafe { sys::SBStringListAppendString(self.raw, string.as_ptr()) };
}
pub fn append_list(&self, other: &SBStringList) {
unsafe { sys::SBStringListAppendList2(self.raw, other.raw) };
}
pub fn iter(&self) -> SBStringListIter {
SBStringListIter {
string_list: self,
idx: 0,
}
}
}
impl Clone for SBStringList {
fn clone(&self) -> SBStringList {
SBStringList {
raw: unsafe { sys::CloneSBStringList(self.raw) },
}
}
}
impl Default for SBStringList {
fn default() -> Self {
Self::new()
}
}
impl Drop for SBStringList {
fn drop(&mut self) {
unsafe { sys::DisposeSBStringList(self.raw) };
}
}
impl From<sys::SBStringListRef> for SBStringList {
fn from(raw: sys::SBStringListRef) -> SBStringList {
SBStringList { raw }
}
}
unsafe impl Send for SBStringList {}
unsafe impl Sync for SBStringList {}
pub struct SBStringListIter<'d> {
string_list: &'d SBStringList,
idx: usize,
}
impl<'d> Iterator for SBStringListIter<'d> {
type Item = &'d str;
fn next(&mut self) -> Option<&'d str> {
if self.idx < unsafe { sys::SBStringListGetSize(self.string_list.raw) as usize } {
let r = unsafe {
match CStr::from_ptr(sys::SBStringListGetStringAtIndex(
self.string_list.raw,
self.idx,
))
.to_str()
{
Ok(s) => s,
_ => panic!("Invalid string?"),
}
};
self.idx += 1;
Some(r)
} else {
None
}
}
fn size_hint(&self) -> (usize, Option<usize>) {
let sz = unsafe { sys::SBStringListGetSize(self.string_list.raw) } as usize;
(sz - self.idx, Some(sz))
}
}
impl<'d> ExactSizeIterator for SBStringListIter<'d> {}