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authorVincent Ambo <mail@tazj.in>2022-08-27T19·58+0300
committertazjin <tazjin@tvl.su>2022-09-06T07·29+0000
commitae531a2245e83d44ce58ba6c588713265984dbbf (patch)
tree64b32c14b9bd8ed6db4f24407e58f785a15c2f2b /tvix/eval/src/tests/tvix_tests
parent06b07f5c47cacca7c3e2d265ba23701f99ceabdf (diff)
feat(tvix/eval): implement capture of self-recursive upvalues r/4653
With this change, it becomes possible for functions to call themselves
as they are being defined in local bindings.

Change-Id: Ib46a39ba17b1452b5673d96fa729d633d237241a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6314
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Diffstat (limited to 'tvix/eval/src/tests/tvix_tests')
-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.exp1
-rw-r--r--tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.nix4
2 files changed, 5 insertions, 0 deletions
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.exp b/tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.exp
new file mode 100644
index 000000000000..be54b4b4e39e
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.exp
@@ -0,0 +1 @@
+"done"
diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.nix b/tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.nix
new file mode 100644
index 000000000000..bda364f42992
--- /dev/null
+++ b/tvix/eval/src/tests/tvix_tests/eval-okay-closure-self.nix
@@ -0,0 +1,4 @@
+let
+  # self-recursive function should be able to close over itself
+  f = n: if n <= 0 then "done" else f (n - 1);
+in f 10