hmm

src/ast/mod.rs

@@ -1,12 +1,36 @@
-pub mod evaluator;
+use std::ops::Range;
 
+use crate::ast::op::Op;
+
+
+pub mod evaluator;
+pub mod op;
+
+
+/// Abstract Syntax Tree
 #[derive(Debug)]
-pub enum Expression {
-    Integer(isize),
-    Negate(Box<Expression>),
-    // Binary operators,
-    Add(Box<Expression>, Box<Expression>),
-    Substract(Box<Expression>, Box<Expression>),
-    Multiply(Box<Expression>, Box<Expression>),
-    Divide(Box<Expression>, Box<Expression>),
+pub enum Expression<'src> {
+    VariableName(&'src str),
+    Integer(i64),
+    Float(f64),
+    String(String),
+    Bool(bool),
+
+    Negatation(Box<Expression<'src>>),
+    Add(Box<Expression<'src>>, Box<Expression<'src>>),
+    Substract(Box<Expression<'src>>, Box<Expression<'src>>),
+    Multiply(Box<Expression<'src>>, Box<Expression<'src>>),
+    Divide(Box<Expression<'src>>, Box<Expression<'src>>),
+    
+    Var {
+        name: &'src str,
+        rhs: Box<Expression<'src>>,
+        then: Box<Expression<'src>>,
+    },
+    Function {
+        name: &'src str,
+        args: Vec<&'src str>,
+        body: Box<Expression<'src>>,
+        then: Box<Expression<'src>>,
+    }
 }