Added a generator script to test the sycl accessors

tests/generator_scripts/scripts/TestSyclBuffer.py

+import pystencils as ps
+import sympy as sp
+from pystencilssfg import SourceFileGenerator
+from pystencilssfg.lang.cpp.sycl_accessor import sycl_accessor_ref
+import pystencilssfg.extensions.sycl as sycl
+
+
+with SourceFileGenerator() as sfg:
+    sfg = sycl.SyclComposer(sfg)
+
+    u_src, u_dst, f = ps.fields("u_src, u_dst, f : double[2D]", layout="fzyx")
+    h = sp.Symbol("h")
+
+    jacobi_update = [
+        ps.Assignment(
+            u_dst.center(),
+            (h**2 * f[0, 0] + u_src[1, 0] + u_src[-1, 0] + u_src[0, 1] + u_src[0, -1])
+            / 4,
+        )
+    ]
+
+    kernel_config = ps.CreateKernelConfig(target=ps.Target.SYCL)
+    jacobi_kernel = sfg.kernels.create(jacobi_update, config=kernel_config)
+
+    cgh = sfg.sycl_handler("handler")
+    rang = sfg.sycl_range(2, "range")
+    mappings = [
+        sfg.map_field(u_src, sycl_accessor_ref(u_src)),
+        sfg.map_field(u_dst, sycl_accessor_ref(u_dst)),
+        sfg.map_field(f, sycl_accessor_ref(f)),
+    ]
+
+    sfg.function("jacobiUpdate")(
+        cgh.parallel_for(rang)(*mappings, sfg.call(jacobi_kernel)),
+    )

tests/generator_scripts/test_generator_scripts.py

@@ -74,7 +74,7 @@ SCRIPTS = [
             "--sfg-file-extensionss",
             ".c++,.h++",
         ),
-        should_fail=True
+        should_fail=True,
     ),
     ScriptInfo.make(
         "TestExtraCommandLineArgs",
@@ -85,13 +85,19 @@ SCRIPTS = [
             "--precision",
             "float32",
             "test1",
-            "test2"
+            "test2",
         ),
     ),
     ScriptInfo.make("Structural", ("hpp", "cpp")),
     ScriptInfo.make("SimpleJacobi", ("hpp", "cpp"), compilable_output="cpp"),
     ScriptInfo.make("SimpleClasses", ("hpp", "cpp")),
     ScriptInfo.make("Variables", ("hpp", "cpp"), compilable_output="cpp"),
+    ScriptInfo.make(
+        "TestSyclBuffer",
+        ("hpp", "cpp"),
+        compilable_output="cpp" if shutil.which("icpx") else None,
+        compile_cmd="icpx -fsycl -std=c++20" if shutil.which("icpx") else "",
+    ),
 ]
 
 
@@ -113,13 +119,17 @@ def test_generator_script(script_info: ScriptInfo):
         shutil.rmtree(output_dir)
     os.makedirs(output_dir, exist_ok=True)
 
-    args = ["python", script_file, "--sfg-output-dir", output_dir] + list(script_info.args)
+    args = ["python", script_file, "--sfg-output-dir", output_dir] + list(
+        script_info.args
+    )
 
     result = subprocess.run(args)
 
     if script_info.should_fail:
         if result.returncode == 0:
-            pytest.fail(f"Generator script {script_name} was supposed to fail, but didn't.")
+            pytest.fail(
+                f"Generator script {script_name} was supposed to fail, but didn't."
+            )
         return
 
     if result.returncode != 0: