Add AST parser skeleton

1 files changed, 27 insertions, 0 deletions

diff --git a/compiler/src/ast/mod.rs b/compiler/src/ast/mod.rs
new file mode 100644
index 0000000..4587ea7
--- /dev/null
+++ b/compiler/src/ast/mod.rs
@@ -0,0 +1,27 @@
+mod error;
+mod parser;
+
+use std::rc::Rc;
+
+use crate::span::Spanned;
+pub use error::Error;
+pub use parser::Parser;
+
+#[derive(Clone, Debug)]
+pub enum Atom {
+    Float(f64),
+    Integer(i64),
+    String(Rc<str>),
+    Symbol(Rc<str>),
+    Bool(bool),
+    Nil,
+}
+
+#[derive(Clone, Debug)]
+pub enum Expr {
+    Atom(Atom),
+    List(Vec<Spanned<Expr>>),
+}
+
+#[derive(Clone, Debug)]
+pub struct Program(pub Vec<Spanned<Expr>>);