refactor(php-shim): take &str and return String from pathinfo

pathinfo only ever receives a string and only ever returns one for the
single-component options it supports, so the PhpMixed wrapping forced
every call site to pack and unpack the value again.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2 files changed, 10 insertions, 19 deletions

diff --git a/crates/shirabe/src/downloader/file_downloader.rs b/crates/shirabe/src/downloader/file_downloader.rs
index c5dfc5f7..4ee580f8 100644
--- a/crates/shirabe/src/downloader/file_downloader.rs
+++ b/crates/shirabe/src/downloader/file_downloader.rs
@@ -712,20 +712,14 @@ impl FileDownloader {
 impl FileDownloader {
     fn get_dist_path(&self, package: PackageInterfaceHandle, component: i64) -> String {
         pathinfo(
-            PhpMixed::String(
-                parse_url(
-                    &strtr(&package.get_dist_url().unwrap_or_default(), "\\", "/"),
-                    PHP_URL_PATH,
-                )
-                .as_string()
-                .unwrap_or("")
-                .to_string(),
-            ),
+            parse_url(
+                &strtr(&package.get_dist_url().unwrap_or_default(), "\\", "/"),
+                PHP_URL_PATH,
+            )
+            .as_string()
+            .unwrap_or(""),
             component,
         )
-        .as_string()
-        .unwrap_or("")
-        .to_string()
     }
 
     pub(crate) fn clear_last_cache_write(&self, package: PackageInterfaceHandle) {
diff --git a/crates/shirabe/src/downloader/gzip_downloader.rs b/crates/shirabe/src/downloader/gzip_downloader.rs
index 70b9f7bb..297cbc11 100644
--- a/crates/shirabe/src/downloader/gzip_downloader.rs
+++ b/crates/shirabe/src/downloader/gzip_downloader.rs
@@ -84,15 +84,12 @@ impl ArchiveDownloader for GzipDownloader {
             parse_url(
                 &strtr(&package.get_dist_url().unwrap_or_default(), "\\", "/"),
                 PHP_URL_PATH,
-            ),
+            )
+            .as_string()
+            .unwrap_or(""),
             PATHINFO_FILENAME,
         );
-        let target_filepath = format!(
-            "{}{}{}",
-            path,
-            DIRECTORY_SEPARATOR,
-            filename.as_string().unwrap_or_default()
-        );
+        let target_filepath = format!("{}{}{}", path, DIRECTORY_SEPARATOR, filename);
 
         if !Platform::is_windows() {
             let command = vec![