setup main to specify an entry point

src/ast.rs

@@ -5,14 +5,6 @@ pub enum Operator {
     Div,
     Plus,
     Minus,
-    // Gt,
-    // Gte,
-    // Lt,
-    // Lte,
-    // Eq,
-    // Mod,
-    // Exp,
-    // FloorDiv,
 }
 
 
@@ -20,10 +12,6 @@ pub struct LiteralInt {
     pub value: i64
 }
 
-// pub struct LiteralString {
-//     value: String
-// }
-
 pub struct Identifier {
     pub name: String
 }
@@ -35,7 +23,6 @@ pub struct FunctionCall {
 
 pub enum Expression {
     LiteralInt(LiteralInt),
-    // LiteralString(LiteralString),
     FunctionCall(FunctionCall),
     Identifier(Identifier),
     Op(Box<Expression>, Operator, Box<Expression>),
@@ -47,23 +34,15 @@ pub struct Block {
 
 pub struct VariableDeclaration {
     pub name: Identifier,
-    // type: Identifier,
 }
 
 pub struct Function {
     pub name: Identifier,
-    // return_type: Identifier,
     pub arguments: Vec<VariableDeclaration>,
     pub block: Block,
 }
 
 
-// pub struct Assignment {
-//     variable: VariableDeclaration,
-//     expression: Expression,
-// }
-
-
 pub struct Module {
     pub functions: Vec<Function>,
 }