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Cleaned the code of ZipReader's constructor

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Mathijs van de Nes 2014-09-10 16:40:13 +02:00
parent e9d42a9dc9
commit 7ce0f5b21f
1 changed files with 13 additions and 20 deletions
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33
src/reader.rs
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@ -25,31 +25,24 @@ fn unsupported_zip_error<T>(detail: &str) -> IoResult<T>
impl<T: Reader+Seek> ZipReader<T> impl<T: Reader+Seek> ZipReader<T>
{ {
pub fn new(inner: T) -> IoResult<ZipReader<T>> pub fn new(mut reader: T) -> IoResult<ZipReader<T>>
{ {
let mut result = ZipReader { inner: RefCell::new(inner), files: Vec::new() }; let footer = try!(spec::CentralDirectoryEnd::find_and_parse(&mut reader));
if footer.number_of_disks > 1 { return unsupported_zip_error("Support for multi-disk files is not implemented") }
let directory_start = footer.central_directory_offset as i64;
let number_of_files = footer.number_of_files_on_this_disk as uint;
let mut files = Vec::with_capacity(number_of_files);
try!(reader.seek(directory_start, io::SeekSet));
for i in range(0, number_of_files)
{ {
let reader = &mut *result.inner.borrow_mut(); files.push(try!(ZipReader::parse_directory(&mut reader)));
let footer = try!(spec::CentralDirectoryEnd::find_and_parse(reader));
if footer.number_of_disks > 1 { return unsupported_zip_error("Support for multi-disk files is not implemented") }
let directory_start = footer.central_directory_offset as i64;
let number_of_files = footer.number_of_files_on_this_disk as uint;
let mut files = Vec::with_capacity(number_of_files);
try!(reader.seek(directory_start, io::SeekSet));
for i in range(0, number_of_files)
{
files.push(try!(ZipReader::parse_directory(reader)));
}
result.files = files;
} }
Ok(result) Ok(ZipReader { inner: RefCell::new(reader), files: files })
} }
fn parse_directory(reader: &mut T) -> IoResult<ZipFile> fn parse_directory(reader: &mut T) -> IoResult<ZipFile>