From d002cdf451e1c6efbf7cd7f2303264526b6f8a92 Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Thu, 12 Aug 2021 16:00:09 +0200
Subject: Named arguments for user defined functions

---
 src/syntax/expr.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'src/syntax/expr.rs')

diff --git a/src/syntax/expr.rs b/src/syntax/expr.rs
index cf9aff4a..9292d5b6 100644
--- a/src/syntax/expr.rs
+++ b/src/syntax/expr.rs
@@ -437,11 +437,20 @@ pub struct ClosureExpr {
     /// This only exists if you use the function syntax sugar: `let f(x) = y`.
     pub name: Option<Ident>,
     /// The parameter bindings.
-    pub params: Rc<Vec<Ident>>,
+    pub params: Vec<ClosureParam>,
     /// The body of the closure.
     pub body: Rc<Expr>,
 }
 
+/// An parameter to a closure: `x` or `draw: false`.
+#[derive(Debug, Clone, PartialEq)]
+pub enum ClosureParam {
+    /// A positional parameter.
+    Pos(Ident),
+    /// A named parameter with a default value.
+    Named(Named),
+}
+
 /// A with expression: `f with (x, y: 1)`.
 ///
 /// Applies arguments to a function.
-- 
cgit v1.2.3