From fede40f2798ac7d8ca75c5515508f0b133d2393d Mon Sep 17 00:00:00 2001
From: Calvin Rose <calsrose@gmail.com>
Date: Sat, 5 Oct 2019 11:47:25 -0500
Subject: [PATCH] Relax requirement minimum arity of `fn`

A valid `fn` special could have only a parameter list, as
recommended by R. DuPlain.
---
 src/core/specials.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/specials.c b/src/core/specials.c
index 8e10594a..8fa650b4 100644
--- a/src/core/specials.c
+++ b/src/core/specials.c
@@ -661,8 +661,8 @@ static JanetSlot janetc_fn(JanetFopts opts, int32_t argn, const Janet *argv) {
     c->scope->flags |= JANET_SCOPE_CLOSURE;
     janetc_scope(&fnscope, c, JANET_SCOPE_FUNCTION, "function");
 
-    if (argn < 2) {
-        errmsg = "expected at least 2 arguments to function literal";
+    if (argn == 0) {
+        errmsg = "expected at least 1 argument to function literal";
         goto error;
     }