Delete obsolete stuff

src/expr.rs

@@ -1,44 +1,21 @@
-use name::Name;
-use typ::Type;
+
+#[derive(Debug, PartialEq)]
+pub enum Expr {
+    // Literals
+    Int(i64),
+    Frac(i64, u64),
+    String(String),
+    Char(char),
+
+    Var(String),
+
+    // Functions
+    Func(String, Box<Expr>),
+    Apply(Box<Expr>, Box<Expr>),
+    Operator(Box<Expr>, Operator, Box<Expr>),
+}
 
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
 pub enum Operator {
     Plus, Minus, Star, Slash, DoubleSlash,
 }
-
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub enum Builtin {
-    // Default
-    Negate,
-    Not,
-
-    // String
-    // StringLength,
-}
-
-
-#[derive(Debug, PartialEq)]
-pub enum Expr {
-    Int(i64),
-    Ratio(i64, u64),
-
-    // Functions
-    CallOperator(Box<Expr>, Operator, Box<Expr>),
-    CallBuiltin(Builtin, Box<Expr>),
-    CallLambda(Box<Expr>, Box<Expr>),
-}
-
-#[derive(Debug, PartialEq)]
-pub enum Pattern {
-    Name(Name),             // `foo =`
-    As(Name, Box<Pattern>), // `<pattern> as foo`
-    Type(Type),
-    Symbol(String),
-    String(String),
-    Char(char),
-    Int(i64),
-    Float(f64),
-    Tuple(Vec<Pattern>),
-    Record(Vec<(Name, Option<Pattern>)>), // { a = 5, b : Int as x, c }
-}
-