Make ScopeResolver struct

schala-lang/language/src/schala.rs

@@ -145,7 +145,8 @@ fn symbol_table(input: ast::AST, handle: &mut Schala, comp: Option<&mut PassDebu
 }
 
 fn scope_resolution(mut input: ast::AST, handle: &mut Schala, com: Option<&mut PassDebugArtifact>) -> Result<ast::AST, String> {
-  let () = crate::scope_resolution::resolve_scopes(&mut input)?;
+  let mut resolver = crate::scope_resolution::ScopeResolver::new();
+  let () = resolver.resolve(&mut input)?;
   Ok(input)
 }
 

schala-lang/language/src/scope_resolution.rs

@@ -1,20 +1,30 @@
 use crate::ast::*;
 
-pub fn resolve_scopes(ast: &mut AST) -> Result<(), String> {
+pub struct ScopeResolver {
-  println!("Resolving scopes - nothing so far!");
+
-  for statement in ast.0.iter_mut() {
+}
-    match statement.mut_node() {
+
-      Statement::Declaration(ref mut decl) => resolve_decl(decl),
+impl ScopeResolver {
-      Statement::ExpressionStatement(ref mut expr) => resolve_expr(expr),
+  pub fn new() -> ScopeResolver {
-    }?;
+    ScopeResolver { }
+  }
+  pub fn resolve(&mut self, ast: &mut AST) -> Result<(), String> {
+    println!("Resolving scopes - nothing so far!");
+    for statement in ast.0.iter_mut() {
+      match statement.mut_node() {
+        Statement::Declaration(ref mut decl) => self.decl(decl),
+        Statement::ExpressionStatement(ref mut expr) => self.expr(expr),
+      }?;
+    }
+    Ok(())
   }
-  Ok(())
-}
 
-fn resolve_decl(decl: &mut Declaration) -> Result<(), String> {
+  fn decl(&mut self, decl: &mut Declaration) -> Result<(), String> {
-  Ok(())
+    Ok(())
-}
+  }
+
+  fn expr(&mut self, expr: &mut Meta<Expression>) -> Result<(), String> {
+    Ok(())
+  }
 
-fn resolve_expr(expr: &mut Meta<Expression>) -> Result<(), String> {
-  Ok(())
 }

schala-repl/src/lib.rs

@@ -45,7 +45,7 @@ pub fn start_repl(langs: Vec<Box<dyn ProgrammingLanguageInterface>>) {
       let mut repl = repl::Repl::new(langs);
       repl.run_repl();
     }
-    [_, ref filename, _..] => {
+    [_, ref filename, ..] => {
       run_noninteractive(filename, langs);
     }
   };