chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
7394 changed files with 2005594 additions and 0 deletions
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+/* ******************************************************************************
+ *
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ *  See the NOTICE file distributed with this work for additional
+ *  information regarding copyright ownership.
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+include "array.fbs";
+include "utils.fbs";
+include "properties.fbs";
+
+namespace graph;
+
+
+// this structure describes single operation within graph
+table FlatNode {
+    id:int; // unique id for this node
+    name:string; // literal id of this node (optional)
+    opType:OpType; // type of this op
+    opNum:long; // for custom ops that's field for hash, for all other (legacy XYZ ops) that's actually opNum (as defined in legacy_ops.h)
+    properties:[FlatProperties]; // optional properties
+    input:[int]; // ID's of input nodes for this node !!! only used if inputPaired in unset !!!
+    inputPaired:[IntPair]; //list of input variables or nodes, in format of IntPair.first is node Id, IntPair.second is output index of the node
+    output:[int]; // ID's of connected nodes for this node
+
+    extraParams:[double]; // extra params for this op (if any)
+    extraInteger:[long]; // optional integer extra params
+    extraBools:[bool]; // optional  boolean args
+    dimensions:[int]; // optional dimension for this operation
+
+    device:int; // default is -1, which means _auto_
+
+    // fields related to Scopes
+    scope_id:int; // unique scope id, where this op belongs to
+    scope_name:string; // literal scope id, where this op belongs to
+
+    // Additional metadata for helping SameDiff deserialization
+    outputNames:[string];       //Name of the SameDiff variable names corresponding to the outputs of this op
+    opName:string;              //Used to help resolving the class. In a few cases, multiple classes/opNames are mapped to same hash, and might have different config/properties/differentiability
+
+    // output data types (optional)
+    outputTypes:[DType];
+	
+	//Scalar value - used for scalar ops. Should be single value only.
+	scalar:FlatArray;
+	
+	//Control dependencies
+	controlDeps:[string];
+	varControlDeps:[string];
+	controlDepFor:[string];
+
+	// DArgs
+	extraTypes:[DType];
+	extraStrings:[string];
+}
+
+root_type FlatNode;