chore: import upstream snapshot with attribution

python/paddle/jit/dy2static/transformers/call_transformer.py

@@ -0,0 +1,81 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from paddle.utils import gast
+
+from ..utils import ast_to_source_code, is_builtin
+from .base import BaseTransformer
+from .utils import is_paddle_api
+
+PDB_SET = "pdb.set_trace"
+
+__all__ = []
+
+
+class CallTransformer(BaseTransformer):
+    """
+    This class transforms function calls into Static Graph Ast.
+    """
+
+    def __init__(self, root):
+        self.root = root
+
+    def _no_need_convert_call(self, node):
+        """
+        Determines whether a function needs to be transformed by `convert_call`.
+        It doesn't need to be transformed when a function satisfies the following conditions:
+          1. It's a api of paddle
+          2. It's a python builtin function not include `len`, `zip`, `range` and `enumerate`
+        """
+        assert isinstance(node, gast.Call)
+        if is_paddle_api(node):
+            return True
+
+        func_str = ast_to_source_code(node.func).strip()
+        try:
+            need_convert_builtin_func_list = {
+                'len',
+                'zip',
+                'range',
+                'enumerate',
+                'print',
+            }
+            fn = eval(func_str)
+            is_builtin_fn = is_builtin(fn)
+            need_convert = func_str in need_convert_builtin_func_list
+            return is_builtin_fn and not need_convert
+        except Exception:
+            return False
+
+    def transform(self):
+        self.visit(self.root)
+
+    def visit_Call(self, node):
+        self.generic_visit(node)
+
+        if self._no_need_convert_call(node):
+            return node
+
+        func_str = ast_to_source_code(node.func).strip()
+
+        # NOTE(liym27): Don't convert `pad.set_trace` even if the conversion doesn't work finally, because
+        # it is clearer to see where it is called from.
+        if PDB_SET in func_str:
+            return node
+
+        new_func_str = f"_jst.Call({func_str})"
+        new_func_ast = gast.parse(new_func_str).body[0].value
+        node.func = new_func_ast
+
+        return node