Refactor for style

forge_core/src/compiler/compiled_fn.rs

@@ -82,12 +82,9 @@ impl CompiledFn {
         }
     }
 
-    pub(crate) fn text(&self) -> Vec<String> {
-        let preamble = self.preamble.0.clone();
-        let body = self.body.0.clone();
-        let outro = self.outro.0.clone();
-
-        [preamble, body, outro].into_iter().flatten().collect()
+    /// Return an iterator over all the
+    pub fn text(&self) -> impl Iterator<Item = &str> {
+        self.preamble.0.iter().chain(self.body.0.iter()).chain(self.outro.0.iter()).map(String::as_str)
     }
 
     /// Emit and emit arg should just be delegated to `body`

forge_core/src/compiler/mod.rs

@@ -47,7 +47,9 @@ pub fn build_boot(src: &str) -> Result<Vec<String>, CompileError> {
         // Now start dumping compiled objects into there. First functions:
         for (_, val) in state.functions.iter_mut() {
             asm.push(format!("{}:", val.label));
-            asm.append(val.text().as_mut());
+            for line in val.text() {
+                asm.push(String::from(line));
+            }
         }
 
         // Strings: