Supports subgraph in the light API

CHANGELOGS.rst

@@ -4,6 +4,7 @@ Change Logs
 0.1.3
 +++++
 
+* :pr:`48`: support for subgraph in light API
 * :pr:`47`: extends export onnx to code to support inner API
 * :pr:`46`: adds an export to convert an onnx graph into light API code
 * :pr:`45`: fixes light API for operators with two outputs

_doc/api/light_api.rst

@@ -19,6 +19,12 @@ translate
 Classes for the Light API
 =========================
 
+ProtoType
++++++++++
+
+.. autoclass:: onnx_array_api.light_api.model.ProtoType
+    :members:
+
 OnnxGraph
 +++++++++
 

_unittests/ut_array_api/test_onnx_numpy.py

@@ -1,4 +1,3 @@
-import sys
 import unittest
 import numpy as np
 from onnx import TensorProto
@@ -91,19 +90,15 @@ def test_arange_int00a(self):
         mat = xp.arange(a, b)
         matnp = mat.numpy()
         self.assertEqual(matnp.shape, (0,))
-        expected = np.arange(0, 0)
-        if sys.platform == "win32":
-            expected = expected.astype(np.int64)
+        expected = np.arange(0, 0).astype(np.int64)
         self.assertEqualArray(matnp, expected)
 
     @ignore_warnings(DeprecationWarning)
     def test_arange_int00(self):
         mat = xp.arange(0, 0)
         matnp = mat.numpy()
         self.assertEqual(matnp.shape, (0,))
-        expected = np.arange(0, 0)
-        if sys.platform == "win32":
-            expected = expected.astype(np.int64)
+        expected = np.arange(0, 0).astype(np.int64)
         self.assertEqualArray(matnp, expected)
 
     def test_ones_like_uint16(self):

_unittests/ut_light_api/test_light_api.py

@@ -1,8 +1,7 @@
 import unittest
-import sys
 from typing import Callable, Optional
 import numpy as np
-from onnx import ModelProto
+from onnx import GraphProto, ModelProto
 from onnx.defs import (
     get_all_schemas_with_history,
     onnx_opset_version,
@@ -11,8 +10,8 @@
     SchemaError,
 )
 from onnx.reference import ReferenceEvaluator
-from onnx_array_api.ext_test_case import ExtTestCase
-from onnx_array_api.light_api import start, OnnxGraph, Var
+from onnx_array_api.ext_test_case import ExtTestCase, skipif_ci_windows
+from onnx_array_api.light_api import start, OnnxGraph, Var, g
 from onnx_array_api.light_api._op_var import OpsVar
 from onnx_array_api.light_api._op_vars import OpsVars
 
@@ -145,7 +144,7 @@ def list_ops_missing(self, n_inputs):
                     f"{new_missing}\n{text}"
                 )
 
-    @unittest.skipIf(sys.platform == "win32", reason="unstable test on Windows")
+    @skipif_ci_windows("Unstable on Windows.")
     def test_list_ops_missing(self):
         self.list_ops_missing(1)
         self.list_ops_missing(2)
@@ -442,7 +441,38 @@ def test_topk_reverse(self):
         self.assertEqualArray(np.array([[0, 1], [6, 7]], dtype=np.float32), got[0])
         self.assertEqualArray(np.array([[0, 1], [3, 2]], dtype=np.int64), got[1])
 
+    def test_if(self):
+        gg = g().cst(np.array([0], dtype=np.int64)).rename("Z").vout()
+        onx = gg.to_onnx()
+        self.assertIsInstance(onx, GraphProto)
+        self.assertEqual(len(onx.input), 0)
+        self.assertEqual(len(onx.output), 1)
+        self.assertEqual([o.name for o in onx.output], ["Z"])
+        onx = (
+            start(opset=19)
+            .vin("X", np.float32)
+            .ReduceSum()
+            .rename("Xs")
+            .cst(np.array([0], dtype=np.float32))
+            .left_bring("Xs")
+            .Greater()
+            .If(
+                then_branch=g().cst(np.array([1], dtype=np.int64)).rename("Z").vout(),
+                else_branch=g().cst(np.array([0], dtype=np.int64)).rename("Z").vout(),
+            )
+            .rename("W")
+            .vout()
+            .to_onnx()
+        )
+        self.assertIsInstance(onx, ModelProto)
+        ref = ReferenceEvaluator(onx)
+        x = np.array([0, 1, 2, 3, 9, 8, 7, 6], dtype=np.float32)
+        got = ref.run(None, {"X": x})
+        self.assertEqualArray(np.array([1], dtype=np.int64), got[0])
+        got = ref.run(None, {"X": -x})
+        self.assertEqualArray(np.array([0], dtype=np.int64), got[0])
+
 
 if __name__ == "__main__":
-    # TestLightApi().test_topk()
+    TestLightApi().test_if()
     unittest.main(verbosity=2)

_unittests/ut_light_api/test_translate.py

@@ -5,7 +5,7 @@
 from onnx.defs import onnx_opset_version
 from onnx.reference import ReferenceEvaluator
 from onnx_array_api.ext_test_case import ExtTestCase
-from onnx_array_api.light_api import start, translate
+from onnx_array_api.light_api import start, translate, g
 from onnx_array_api.light_api.emitter import EventType
 
 OPSET_API = min(19, onnx_opset_version() - 1)
@@ -133,7 +133,59 @@ def test_topk_reverse(self):
         ).strip("\n")
         self.assertEqual(expected, code)
 
+    def test_export_if(self):
+        onx = (
+            start(opset=19)
+            .vin("X", np.float32)
+            .ReduceSum()
+            .rename("Xs")
+            .cst(np.array([0], dtype=np.float32))
+            .left_bring("Xs")
+            .Greater()
+            .If(
+                then_branch=g().cst(np.array([1], dtype=np.int64)).rename("Z").vout(),
+                else_branch=g().cst(np.array([0], dtype=np.int64)).rename("Z").vout(),
+            )
+            .rename("W")
+            .vout()
+            .to_onnx()
+        )
+
+        self.assertIsInstance(onx, ModelProto)
+        ref = ReferenceEvaluator(onx)
+        x = np.array([[0, 1, 2, 3], [9, 8, 7, 6]], dtype=np.float32)
+        k = np.array([2], dtype=np.int64)
+        got = ref.run(None, {"X": x, "K": k})
+        self.assertEqualArray(np.array([1], dtype=np.int64), got[0])
+
+        code = translate(onx)
+        selse = "g().cst(np.array([0], dtype=np.int64)).rename('Z').bring('Z').vout(elem_type=TensorProto.FLOAT)"
+        sthen = "g().cst(np.array([1], dtype=np.int64)).rename('Z').bring('Z').vout(elem_type=TensorProto.FLOAT)"
+        expected = dedent(
+            f"""
+            (
+                start(opset=19)
+                .cst(np.array([0.0], dtype=np.float32))
+                .rename('r')
+                .vin('X', elem_type=TensorProto.FLOAT)
+                .bring('X')
+                .ReduceSum(keepdims=1, noop_with_empty_axes=0)
+                .rename('Xs')
+                .bring('Xs', 'r')
+                .Greater()
+                .rename('r1_0')
+                .bring('r1_0')
+                .If(else_branch={selse}, then_branch={sthen})
+                .rename('W')
+                .bring('W')
+                .vout(elem_type=TensorProto.FLOAT)
+                .to_onnx()
+            )"""
+        ).strip("\n")
+        self.maxDiff = None
+        self.assertEqual(expected, code)
+
 
 if __name__ == "__main__":
-    # TestLightApi().test_topk()
+    TestTranslate().test_export_if()
     unittest.main(verbosity=2)

_unittests/ut_light_api/test_translate_classic.py

@@ -35,7 +35,7 @@ def test_check_code(self):
         outputs.append(make_tensor_value_info("Y", TensorProto.FLOAT, shape=[]))
         graph = make_graph(
             nodes,
-            "noname",
+            "onename",
             inputs,
             outputs,
             initializers,
@@ -77,7 +77,7 @@ def test_exp(self):
         outputs.append(make_tensor_value_info('Y', TensorProto.FLOAT, shape=[]))
         graph = make_graph(
             nodes,
-            'noname',
+            'light_api',
             inputs,
             outputs,
             initializers,
@@ -161,7 +161,7 @@ def test_transpose(self):
             outputs.append(make_tensor_value_info('Y', TensorProto.FLOAT, shape=[]))
             graph = make_graph(
                 nodes,
-                'noname',
+                'light_api',
                 inputs,
                 outputs,
                 initializers,
@@ -223,7 +223,7 @@ def test_topk_reverse(self):
             outputs.append(make_tensor_value_info('Indices', TensorProto.FLOAT, shape=[]))
             graph = make_graph(
                 nodes,
-                'noname',
+                'light_api',
                 inputs,
                 outputs,
                 initializers,

_unittests/ut_npx/test_npx.py

@@ -20,7 +20,7 @@
 from onnx.reference import ReferenceEvaluator
 from onnx.shape_inference import infer_shapes
 
-from onnx_array_api.ext_test_case import ExtTestCase, ignore_warnings
+from onnx_array_api.ext_test_case import ExtTestCase, ignore_warnings, skipif_ci_windows
 from onnx_array_api.reference import ExtendedReferenceEvaluator
 from onnx_array_api.npx import ElemType, eager_onnx, jit_onnx
 from onnx_array_api.npx.npx_core_api import (
@@ -1355,6 +1355,7 @@ def test_clip_none(self):
         got = ref.run(None, {"A": x})
         self.assertEqualArray(y, got[0])
 
+    @skipif_ci_windows("Unstable on Windows.")
     def test_arange_inline(self):
         # arange(5)
         f = arange_inline(Input("A"))
@@ -1391,6 +1392,7 @@ def test_arange_inline(self):
         got = ref.run(None, {"A": x1, "B": x2, "C": x3})
         self.assertEqualArray(y, got[0])
 
+    @skipif_ci_windows("Unstable on Windows.")
     def test_arange_inline_dtype(self):
         # arange(1, 5, 2), dtype
         f = arange_inline(Input("A"), Input("B"), Input("C"), dtype=np.float64)

_unittests/ut_ort/test_ort_tensor.py

@@ -6,7 +6,7 @@
 from onnx.defs import onnx_opset_version
 from onnx.reference import ReferenceEvaluator
 from onnxruntime import InferenceSession
-from onnx_array_api.ext_test_case import ExtTestCase
+from onnx_array_api.ext_test_case import ExtTestCase, skipif_ci_windows
 from onnx_array_api.npx import eager_onnx, jit_onnx
 from onnx_array_api.npx.npx_functions import absolute as absolute_inline
 from onnx_array_api.npx.npx_functions import cdist as cdist_inline
@@ -20,6 +20,7 @@
 
 
 class TestOrtTensor(ExtTestCase):
+    @skipif_ci_windows("Unstable on Windows")
     def test_eager_numpy_type_ort(self):
         def impl(A):
             self.assertIsInstance(A, EagerOrtTensor)
@@ -45,6 +46,7 @@ def impl(A):
         self.assertEqualArray(z, res.numpy())
         self.assertEqual(res.numpy().dtype, np.float64)
 
+    @skipif_ci_windows("Unstable on Windows")
     def test_eager_numpy_type_ort_op(self):
         def impl(A):
             self.assertIsInstance(A, EagerOrtTensor)
@@ -68,6 +70,7 @@ def impl(A):
         self.assertEqualArray(z, res.numpy())
         self.assertEqual(res.numpy().dtype, np.float64)
 
+    @skipif_ci_windows("Unstable on Windows")
     def test_eager_ort(self):
         def impl(A):
             print("A")
@@ -141,6 +144,7 @@ def impl(A):
         self.assertEqual(tuple(res.shape()), z.shape)
         self.assertStartsWith("A\nB\nC\n", text)
 
+    @skipif_ci_windows("Unstable on Windows")
     def test_cdist_com_microsoft(self):
         from scipy.spatial.distance import cdist as scipy_cdist
 
@@ -193,7 +197,7 @@ def impl(xa, xb):
         if len(pieces) > 2:
             raise AssertionError(f"Function is not using argument:\n{onx}")
 
-    def test_astype(self):
+    def test_astype_w2(self):
         f = absolute_inline(copy_inline(Input("A")).astype(DType(TensorProto.FLOAT)))
         onx = f.to_onnx(constraints={"A": Float64[None]})
         x = np.array([[-5, 6]], dtype=np.float64)
@@ -204,7 +208,7 @@ def test_astype(self):
         got = ref.run(None, {"A": x})
         self.assertEqualArray(z, got[0])
 
-    def test_astype0(self):
+    def test_astype0_w2(self):
         f = absolute_inline(copy_inline(Input("A")).astype(DType(TensorProto.FLOAT)))
         onx = f.to_onnx(constraints={"A": Float64[None]})
         x = np.array(-5, dtype=np.float64)
@@ -215,6 +219,7 @@ def test_astype0(self):
         got = ref.run(None, {"A": x})
         self.assertEqualArray(z, got[0])
 
+    @skipif_ci_windows("Unstable on Windows")
     def test_eager_ort_cast(self):
         def impl(A):
             return A.astype(DType("FLOAT"))

_unittests/ut_ort/test_sklearn_array_api_ort.py

@@ -4,7 +4,7 @@
 from onnx.defs import onnx_opset_version
 from sklearn import config_context, __version__ as sklearn_version
 from sklearn.discriminant_analysis import LinearDiscriminantAnalysis
-from onnx_array_api.ext_test_case import ExtTestCase
+from onnx_array_api.ext_test_case import ExtTestCase, skipif_ci_windows
 from onnx_array_api.ort.ort_tensors import EagerOrtTensor, OrtTensor
 
 
@@ -16,7 +16,8 @@ class TestSklearnArrayAPIOrt(ExtTestCase):
         Version(sklearn_version) <= Version("1.2.2"),
         reason="reshape ArrayAPI not followed",
     )
-    def test_sklearn_array_api_linear_discriminant(self):
+    @skipif_ci_windows("Unstable on Windows.")
+    def test_sklearn_array_api_linear_discriminant_ort(self):
         X = np.array(
             [[-1, -1], [-2, -1], [-3, -2], [1, 1], [2, 1], [3, 2]], dtype=np.float64
         )
@@ -38,7 +39,8 @@ def test_sklearn_array_api_linear_discriminant(self):
         Version(sklearn_version) <= Version("1.2.2"),
         reason="reshape ArrayAPI not followed",
     )
-    def test_sklearn_array_api_linear_discriminant_float32(self):
+    @skipif_ci_windows("Unstable on Windows.")
+    def test_sklearn_array_api_linear_discriminant_ort_float32(self):
         X = np.array(
             [[-1, -1], [-2, -1], [-3, -2], [1, 1], [2, 1], [3, 2]], dtype=np.float32
         )

_unittests/ut_validation/test_docs.py

@@ -1,8 +1,7 @@
 import unittest
-import sys
 import numpy as np
 from onnx.reference import ReferenceEvaluator
-from onnx_array_api.ext_test_case import ExtTestCase
+from onnx_array_api.ext_test_case import ExtTestCase, skipif_ci_windows
 from onnx_array_api.validation.docs import make_euclidean, make_euclidean_skl2onnx
 
 
@@ -27,7 +26,7 @@ def test_make_euclidean_skl2onnx(self):
         got = ref.run(None, {"X": X, "Y": Y})[0]
         self.assertEqualArray(expected, got)
 
-    @unittest.skipIf(sys.platform == "win32", reason="unstable on Windows")
+    @skipif_ci_windows("Unstable on Windows.")
     def test_make_euclidean_np(self):
         from onnx_array_api.npx import jit_onnx
 

_unittests/ut_xrun_doc/test_documentation_examples.py

@@ -5,7 +5,7 @@
 import subprocess
 import time
 from onnx_array_api import __file__ as onnx_array_api_file
-from onnx_array_api.ext_test_case import ExtTestCase
+from onnx_array_api.ext_test_case import ExtTestCase, is_windows
 
 VERBOSE = 0
 ROOT = os.path.realpath(os.path.abspath(os.path.join(onnx_array_api_file, "..", "..")))
@@ -29,7 +29,7 @@ def run_test(self, fold: str, name: str, verbose=0) -> int:
         if len(ppath) == 0:
             os.environ["PYTHONPATH"] = ROOT
         elif ROOT not in ppath:
-            sep = ";" if sys.platform == "win32" else ":"
+            sep = ";" if is_windows() else ":"
             os.environ["PYTHONPATH"] = ppath + sep + ROOT
         perf = time.perf_counter()
         try: