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use ArchiveRef;
use std::ffi::CString;
use std::marker;
use std::path::Path;
use std::slice;
use std::str;
pub struct ArchiveRO {
ptr: ArchiveRef,
}
pub struct Iter<'a> {
archive: &'a ArchiveRO,
ptr: ::ArchiveIteratorRef,
}
pub struct Child<'a> {
ptr: ::ArchiveChildRef,
_data: marker::PhantomData<&'a ArchiveRO>,
}
impl ArchiveRO {
pub fn open(dst: &Path) -> Option<ArchiveRO> {
return unsafe {
let s = path2cstr(dst);
let ar = ::LLVMRustOpenArchive(s.as_ptr());
if ar.is_null() {
None
} else {
Some(ArchiveRO { ptr: ar })
}
};
#[cfg(unix)]
fn path2cstr(p: &Path) -> CString {
use std::os::unix::prelude::*;
use std::ffi::OsStr;
let p: &OsStr = p.as_ref();
CString::new(p.as_bytes()).unwrap()
}
#[cfg(windows)]
fn path2cstr(p: &Path) -> CString {
CString::new(p.to_str().unwrap()).unwrap()
}
}
pub fn raw(&self) -> ArchiveRef {
self.ptr
}
pub fn iter(&self) -> Iter {
unsafe {
Iter {
ptr: ::LLVMRustArchiveIteratorNew(self.ptr),
archive: self,
}
}
}
}
impl Drop for ArchiveRO {
fn drop(&mut self) {
unsafe {
::LLVMRustDestroyArchive(self.ptr);
}
}
}
impl<'a> Iterator for Iter<'a> {
type Item = Result<Child<'a>, String>;
fn next(&mut self) -> Option<Result<Child<'a>, String>> {
let ptr = unsafe { ::LLVMRustArchiveIteratorNext(self.ptr) };
if ptr.is_null() {
::last_error().map(Err)
} else {
Some(Ok(Child {
ptr: ptr,
_data: marker::PhantomData,
}))
}
}
}
impl<'a> Drop for Iter<'a> {
fn drop(&mut self) {
unsafe {
::LLVMRustArchiveIteratorFree(self.ptr);
}
}
}
impl<'a> Child<'a> {
pub fn name(&self) -> Option<&'a str> {
unsafe {
let mut name_len = 0;
let name_ptr = ::LLVMRustArchiveChildName(self.ptr, &mut name_len);
if name_ptr.is_null() {
None
} else {
let name = slice::from_raw_parts(name_ptr as *const u8, name_len as usize);
str::from_utf8(name).ok().map(|s| s.trim())
}
}
}
pub fn data(&self) -> &'a [u8] {
unsafe {
let mut data_len = 0;
let data_ptr = ::LLVMRustArchiveChildData(self.ptr, &mut data_len);
if data_ptr.is_null() {
panic!("failed to read data from archive child");
}
slice::from_raw_parts(data_ptr as *const u8, data_len as usize)
}
}
pub fn raw(&self) -> ::ArchiveChildRef {
self.ptr
}
}
impl<'a> Drop for Child<'a> {
fn drop(&mut self) {
unsafe {
::LLVMRustArchiveChildFree(self.ptr);
}
}
}