From a5e0c13943db1829bb4e290bb5c464d8b7daa395 Mon Sep 17 00:00:00 2001
From: arty <art.yerkes@gmail.com>
Date: Tue, 12 Sep 2023 10:04:57 -0700
Subject: [PATCH] Add continued if

---
 src/compiler/compiler.rs           | 11 ++++++++++-
 src/tests/classic/run.rs           | 30 ++++++++++++++++++++++++++++++
 src/tests/compiler/preprocessor.rs |  4 +++-
 3 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/src/compiler/compiler.rs b/src/compiler/compiler.rs
index fc196fae5..00f5c7bc5 100644
--- a/src/compiler/compiler.rs
+++ b/src/compiler/compiler.rs
@@ -45,10 +45,19 @@ lazy_static! {
     };
     pub static ref ADVANCED_MACROS: String = {
         indoc! {"(
-            (defmac if (A B C)
+            (defmac __chia__primitive__if (A B C)
               (qq (a (i (unquote A) (com (unquote B)) (com (unquote C))) @))
               )
 
+            (defun __chia__if (ARGS)
+              (__chia__primitive__if (r (r (r ARGS)))
+                (qq (i (unquote (f ARGS)) (com (unquote (f (r ARGS)))) (unquote (__chia__if (r (r ARGS))))))
+                (qq (i (unquote (f ARGS)) (com (unquote (f (r ARGS)))) (com (unquote (f (r (r ARGS)))))))
+                )
+              )
+
+            (defmac if ARGS (qq (a (unquote (__chia__if ARGS)) @)))
+
             (defun __chia__compile-list (args)
               (if args
                 (c 4 (c (f args) (c (__chia__compile-list (r args)) ())))
diff --git a/src/tests/classic/run.rs b/src/tests/classic/run.rs
index 24681f4e7..be2b99733 100644
--- a/src/tests/classic/run.rs
+++ b/src/tests/classic/run.rs
@@ -1430,3 +1430,33 @@ fn test_classic_obeys_operator_choice_at_compile_time_version_0() {
     .to_string();
     assert_eq!(compiled, "FAIL: unimplemented operator 48");
 }
+
+#[test]
+fn test_continued_if() {
+    let prog = indoc! {"
+(mod X
+  (include *strict-cl-21*)
+
+  (defun bigatom (Xs Ys)
+    (if
+      Xs (concat (f Xs) (bigatom (r Xs) Ys))
+      Ys (concat (f Ys) (bigatom (r Ys) ()))
+      ()
+      )
+    )
+
+  (bigatom (q . (3 4 5)) X)
+  )"}
+    .to_string();
+    let compiled = do_basic_run(&vec!["run".to_string(), prog])
+        .trim()
+        .to_string();
+    let res = do_basic_brun(&vec![
+        "brun".to_string(),
+        compiled,
+        "(13 99 144)".to_string(),
+    ])
+    .trim()
+    .to_string();
+    assert_eq!(res.to_string(), "0x0304050d630090");
+}
diff --git a/src/tests/compiler/preprocessor.rs b/src/tests/compiler/preprocessor.rs
index 9d8947227..d6ede7f50 100644
--- a/src/tests/compiler/preprocessor.rs
+++ b/src/tests/compiler/preprocessor.rs
@@ -568,7 +568,9 @@ fn test_preprocessor_tours_includes_properly() {
     let mut includes = Vec::new();
     let res = preprocess(opts, &mut includes, parsed[0].clone()).expect("should preprocess");
     let expected_lines = &[
-        "(defmac if (A B C) (qq (a (i (unquote A) (com (unquote B)) (com (unquote C))) @)))",
+        "(defmac __chia__primitive__if (A B C) (qq (a (i (unquote A) (com (unquote B)) (com (unquote C))) @)))",
+        "(defun __chia__if (ARGS) (a (i (r (r (r ARGS))) (com (qq (i (unquote (f ARGS)) (com (unquote (f (r ARGS)))) (unquote (__chia__if (r (r ARGS))))))) (com (qq (i (unquote (f ARGS)) (com (unquote (f (r ARGS)))) (com (unquote (f (r (r ARGS))))))))) @))",
+        "(defmac if ARGS (qq (a (unquote (__chia__if ARGS)) @)))",
         "(defun __chia__compile-list (args) (a (i args (com (c 4 (c (f args) (c (__chia__compile-list (r args)) ())))) (com ())) @))",
         "(defmac list ARGS (__chia__compile-list ARGS))",
         "(defun-inline / (A B) (f (divmod A B)))",