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use std::fmt::Display;
use crate::lexer::{Literal, TokenType};
pub mod parser;
pub mod printer;
#[derive(Debug, Eq, PartialEq)]
pub enum Stmt {
Block(Vec<Stmt>),
Expr(Expr),
Val {
ident: String,
value: Expr,
},
Var {
ident: String,
value: Expr,
},
Assignment {
ident: String,
value: Expr,
},
Function {
ident: String,
arguments: Vec<FunctionArgument>,
return_type: String,
body: Vec<Stmt>,
},
If {
condition: Expr,
body: Vec<Stmt>,
},
For {
binding: String,
range: (Expr, Expr),
body: Vec<Stmt>,
},
Return {
value: Expr,
},
}
#[derive(Debug, Eq, PartialEq)]
pub struct FunctionArgument {
name: String,
types: String,
}
#[derive(Debug, Eq, PartialEq)]
pub enum Expr {
Literal(Literal),
Variable(String),
Grouping(Box<Expr>),
Call {
ident: String,
arguments: Vec<Expr>,
},
Binary {
operator: TokenType,
lhs: Box<Expr>,
rhs: Box<Expr>,
},
Unary {
operator: TokenType,
expr: Box<Expr>,
},
}
pub trait AstVisitor<T = ()> {
fn visit_stmt(&mut self, stmt: &Stmt) -> T;
fn visit_expr(&mut self, expr: &Expr) -> T;
}
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