Rework some Vm functions

Author: udoprog

crates/rune-cli/src/run.rs

@@ -220,22 +220,22 @@ pub(crate) async fn run(
 
         while let Some((count, frame)) = it.next() {
             let stack_top = match it.peek() {
-                Some((_, next)) => next.stack_bottom(),
+                Some((_, next)) => next.stack_bottom,
                 None => stack.stack_bottom(),
             };
 
             let values = stack
-                .get(frame.stack_bottom()..stack_top)
+                .get(frame.stack_bottom..stack_top)
                 .expect("bad stack slice");
 
-            writeln!(io.stdout, "  frame #{} (+{})", count, frame.stack_bottom())?;
+            writeln!(io.stdout, "  frame #{} (+{})", count, frame.stack_bottom)?;
 
             if values.is_empty() {
                 writeln!(io.stdout, "    *empty*")?;
             }
 
             for (n, value) in stack.iter().enumerate() {
-                writeln!(io.stdout, "{}+{} = {:?}", frame.stack_bottom(), n, value)?;
+                writeln!(io.stdout, "{}+{} = {:?}", frame.stack_bottom, n, value)?;
             }
         }
 

crates/rune/src/compile/meta.rs

@@ -255,6 +255,7 @@ pub struct Signature {
     /// Arguments.
     pub(crate) args: Option<usize>,
     /// Return type of the function.
+    #[cfg_attr(not(feature = "doc"), allow(unused))]
     pub(crate) return_type: Option<Hash>,
     /// The kind of a signature.
     pub(crate) kind: SignatureKind,

crates/rune/src/diagnostics/emit.rs

@@ -97,7 +97,7 @@ impl VmError {
                 None => continue,
             };
 
-            for ip in [l.ip].into_iter().chain(l.frames.iter().rev().map(|v| v.ip())) {
+            for ip in [l.ip].into_iter().chain(l.frames.iter().rev().map(|v| v.ip)) {
                 let debug_inst = match debug_info.instruction_at(ip) {
                     Some(debug_inst) => debug_inst,
                     None => continue,