fix(compile): implement abstract class traits across all types

Implement BaseCommand trait and other abstract class traits across
all command, downloader, io, package, and VCS driver types. Also
fix trait method signatures for composer_mut and io_mut to return
mutable references to Option rather than Option of mutable references.

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/shirabe/src/downloader/svn_downloader.rs b/crates/shirabe/src/downloader/svn_downloader.rs
index 30a64f2..ef006f3 100644
--- a/crates/shirabe/src/downloader/svn_downloader.rs
+++ b/crates/shirabe/src/downloader/svn_downloader.rs
@@ -5,7 +5,7 @@ use shirabe_external_packages::react::promise;
 use shirabe_external_packages::react::promise::promise_interface::PromiseInterface;
 use shirabe_php_shim::{PhpMixed, RuntimeException, is_dir, version_compare};
 
-use crate::downloader::vcs_downloader::VcsDownloader;
+use crate::downloader::vcs_downloader::VcsDownloaderBase;
 use crate::io::io_interface::IOInterface;
 use crate::package::package_interface::PackageInterface;
 use crate::repository::vcs_repository::VcsRepository;
@@ -13,7 +13,7 @@ use crate::util::svn::Svn as SvnUtil;
 
 #[derive(Debug)]
 pub struct SvnDownloader {
-    inner: VcsDownloader,
+    inner: VcsDownloaderBase,
     pub(crate) cache_credentials: bool,
 }