Start using ASTVisitor for reduction process

schala-lang/language/src/reduced_ast.rs

@@ -3,6 +3,7 @@ use std::rc::Rc;
 use crate::ast::*;
 use crate::symbol_table::{Symbol, SymbolSpec, SymbolTable};
 use crate::builtin::{BinOp, PrefixOp};
+use crate::visitor::{ASTVisitor, Visitable};
 
 #[derive(Debug)]
 pub struct ReducedAST(pub Vec<Stmt>);
@@ -94,6 +95,30 @@ pub enum Func {
   }
 }
 
+struct Reducer {
+
+}
+
+impl Reducer {
+  fn new() -> Reducer {
+    Reducer { }
+  }
+
+  fn output(&mut self) -> Result<ReducedAST, String> {
+    Err("yolo".to_string())
+  }
+}
+
+impl ASTVisitor for Reducer {
+
+}
+
+pub fn perform_reduction(mut input: AST, _symbol_table: &SymbolTable) -> Result<ReducedAST, String> {
+  let mut reducer = Reducer::new();
+  input.visit(&mut reducer);
+  reducer.output()
+}
+
 impl AST {
   pub fn reduce(&self, symbol_table: &SymbolTable) -> ReducedAST {
     let mut output = vec![];