fix(complete): Correctly detect positionals

clap_complete/src/dynamic.rs

@@ -316,7 +316,7 @@ complete OPTIONS -F _clap_complete_NAME EXECUTABLES
         }
 
         let mut current_cmd = &*cmd;
-        let mut pos_index = 0;
+        let mut pos_index = 1;
         let mut is_escaped = false;
         while let Some(arg) = raw_args.next(&mut cursor) {
             if cursor == target_cursor {

clap_complete/tests/dynamic.rs

@@ -80,6 +80,41 @@ fn suggest_long_flag_subset() {
     assert_eq!(completions, ["--help", "--hello-world", "--hello-moon"]);
 }
 
+#[test]
+fn suggest_possible_value_subset() {
+    let name = "test";
+    let mut cmd = clap::Command::new(name).arg(clap::Arg::new("hello-world").possible_values([
+        "hello-world",
+        "hello-moon",
+        "goodbye-world",
+    ]));
+
+    let args = [name, "hello"];
+    let arg_index = 1;
+    let args = IntoIterator::into_iter(args)
+        .map(|s| std::ffi::OsString::from(s))
+        .collect::<Vec<_>>();
+    let comp_type = clap_complete::dynamic::bash::CompType::default();
+    let trailing_space = true;
+    let current_dir = None;
+
+    let completions = clap_complete::dynamic::bash::complete(
+        &mut cmd,
+        args,
+        arg_index,
+        comp_type,
+        trailing_space,
+        current_dir,
+    )
+    .unwrap();
+    let completions = completions
+        .into_iter()
+        .map(|s| s.to_string_lossy().into_owned())
+        .collect::<Vec<_>>();
+
+    assert_eq!(completions, ["hello-world", "hello-moon"]);
+}
+
 #[test]
 fn suggest_additional_short_flags() {
     let name = "test";