eval: fix segmentation faults with self-invoking functions

Store the invocation scope and function context in the call stack  frame
and not in the function object to properly deal with recursive invocations.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/02_runtime/06_recursion b/tests/02_runtime/06_recursion
new file mode 100644
index 0000000..e707c86
--- /dev/null
+++ b/tests/02_runtime/06_recursion
@@ -0,0 +1,35 @@
+Testing recursive invocations.
+
+
+1. Testing recursive invocation.
+
+-- Expect stdout --
+1
+2
+4
+8
+16
+32
+64
+128
+256
+512
+1024
+2048
+4096
+8192
+16384
+-- End --
+
+-- Testcase --
+{%
+	function test(x) {
+		print(x, "\n");
+
+		if (x < 10000)
+			test(x * 2);
+	}
+
+	test(1);
+%}
+-- End --