From 2353e9f122df76d3e533874997c030b5a1f3a9e9 Mon Sep 17 00:00:00 2001
From: Milos Gligoric <milos.gligoric@gmail.com>
Date: Sun, 7 Jan 2024 12:58:25 -0600
Subject: [PATCH] Add support for the pass statement in trivial cases (empty
 body)

---
 pk                                 | 14 +++++++++++---
 pykokkos/core/cppast/serializer.py |  2 +-
 tests/test_AST_translator.py       |  7 +++++++
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/pk b/pk
index bbc14000..67374d97 100755
--- a/pk
+++ b/pk
@@ -48,14 +48,21 @@ function pk_docker_pull() {
 
 function _pk_cmd() {
         local -r name="${1}"
+        [ $# -lt 1 ] && return 1
+        shift 1
+
+        [ -z "${name}" ] && \
+                { echo "no name provided"; return 1; }
 
         ( cd "${CHOME}/pykokkos"
           export PYTHONPATH=pykokkos:$PYTHONPATH
-          python "${name}" )
+          python "${name}" "$@" )
 }
 
 function pk_example() {
         local -r name="${1}"
+        [ $# -lt 1 ] && return 1
+        shift 1
 
         [ -z "${name}" ] && \
                 { echo "no name provided (e.g., examples/kokkos-tutorials/workload/01.py)"; return 1; }
@@ -67,11 +74,12 @@ function pk_example() {
                --volume $(pwd):"${CHOME}/pykokkos" \
                --user pk:$(id -g) \
                "${PROJECT}" \
-               "${CHOME}/pykokkos/pk" "_pk_cmd" "${name}"
+               "${CHOME}/pykokkos/pk" "_pk_cmd" "${name}" \
+               "$@"
 }
 
 function pk_tests() {
-        pk_example "runtests.py"
+        pk_example "runtests.py" "$@"
 }
 
 "$@"
diff --git a/pykokkos/core/cppast/serializer.py b/pykokkos/core/cppast/serializer.py
index bc539fad..96251592 100644
--- a/pykokkos/core/cppast/serializer.py
+++ b/pykokkos/core/cppast/serializer.py
@@ -300,7 +300,7 @@ def serialize_DeclStmt(self, node: DeclStmt) -> str:
         return self.serialize(node.decl) + ";"
 
     def serialize_EmptyStmt(self, node: EmptyStmt) -> str:
-        return ""
+        return "{}"
 
     def serialize_ForStmt(self, node: ForStmt) -> str:
         init: str = self.serialize(node.init)
diff --git a/tests/test_AST_translator.py b/tests/test_AST_translator.py
index 3a2f9154..c8ce17f7 100644
--- a/tests/test_AST_translator.py
+++ b/tests/test_AST_translator.py
@@ -110,6 +110,10 @@ def while_stmt(self, tid: int, acc: pk.Acc[pk.double]) -> None:
             acc += self.i_2
             x += 1
 
+    @pk.workunit
+    def pass_stmt(self, tid: int) -> None:
+        pass
+
     @pk.workunit
     def call(self, tid: int, acc: pk.Acc[pk.double]) -> None:
         pk.printf("Testing printf: %d\n", self.i_1)
@@ -269,6 +273,9 @@ def test_while_stmt(self):
 
         self.assertEqual(expected_result, result)
 
+    def test_pass(self):
+        pk.parallel_for(self.range_policy, self.functor.pass_stmt)
+
     def test_call(self):
         expected_result: int = self.threads * abs(- self.i_1)
         result: int = pk.parallel_reduce(self.range_policy, self.functor.call)