Method parse_expr

cranelift/isle/isle/src/parser.rs:949–972

(&mut self)

    }

    fn parse_expr(&mut self) -> Result<Expr> {
        let pos = self.pos();
        if self.is_lparen() {
            self.expect_lparen()?;
            let ret = self.parse_expr_inner_parens(pos)?;
            self.expect_rparen()?;
            Ok(ret)
        } else if self.is_const() {
            let val = self.parse_const()?;
            Ok(Expr::ConstPrim { val, pos })
        } else if self.eat_sym_str("true")? {
            Ok(Expr::ConstBool { val: true, pos })
        } else if self.eat_sym_str("false")? {
            Ok(Expr::ConstBool { val: false, pos })
        } else if self.is_sym() {
            let name = self.parse_ident()?;
            Ok(Expr::Var { name, pos })
        } else if self.is_int() {
            let val = self.expect_int()?;
            Ok(Expr::ConstInt { val, pos })
        } else {
            Err(self.error(pos, "Invalid expression".into()))
        }
    }

    fn parse_expr_inner_parens(&mut self, pos: Pos) -> Result<Expr> {
        if self.eat_sym_str("let")? {