Make bytecode::Location Copy

bytecode/src/bytecode.rs

@@ -9,7 +9,7 @@ use std::collections::{HashMap, HashSet};
 use std::fmt;
 
 /// Sourcode location.
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
+#[derive(Clone, Copy, Debug, Default, PartialEq, Serialize, Deserialize)]
 pub struct Location {
     row: usize,
     column: usize,

compiler/src/peephole.rs

@@ -15,7 +15,7 @@ impl From<Vec<InstructionMetadata>> for InstructionMetadata {
     fn from(metas: Vec<Self>) -> Self {
         debug_assert!(!metas.is_empty(), "`metas` must not be empty");
         InstructionMetadata {
-            loc: metas[0].loc.clone(),
+            loc: metas[0].loc,
             labels: metas
                 .into_iter()
                 .flat_map(|meta| meta.labels.into_iter())

vm/src/frame.rs

@@ -1348,7 +1348,7 @@ impl Frame {
     }
 
     pub fn get_lineno(&self) -> bytecode::Location {
-        self.code.locations[self.lasti.get()].clone()
+        self.code.locations[self.lasti.get()]
     }
 
     fn push_block(&self, typ: BlockType) {