lanking520 closed pull request #10546: [MXNET-319] [WIP] Add Autocomplete 
Macros in Scala
URL: https://github.com/apache/incubator-mxnet/pull/10546
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/scala-package/core/src/main/scala/org/apache/mxnet/LibInfo.scala 
b/scala-package/core/src/main/scala/org/apache/mxnet/LibInfo.scala
index 0a5683aa7ab..fd8269b6ac8 100644
--- a/scala-package/core/src/main/scala/org/apache/mxnet/LibInfo.scala
+++ b/scala-package/core/src/main/scala/org/apache/mxnet/LibInfo.scala
@@ -194,7 +194,8 @@ private[mxnet] class LibInfo {
                                           argNames: ListBuffer[String],
                                           argTypes: ListBuffer[String],
                                           argDescs: ListBuffer[String],
-                                          keyVarNumArgs: RefString): Int
+                                          keyVarNumArgs: RefString,
+                                          returnType: RefString): Int
   @native def mxSymbolCreateAtomicSymbol(handle: SymbolHandle,
                                          paramKeys: Array[String],
                                          paramVals: Array[String],
diff --git a/scala-package/core/src/main/scala/org/apache/mxnet/NDArray.scala 
b/scala-package/core/src/main/scala/org/apache/mxnet/NDArray.scala
index 416f2d74e82..561ebc96b55 100644
--- a/scala-package/core/src/main/scala/org/apache/mxnet/NDArray.scala
+++ b/scala-package/core/src/main/scala/org/apache/mxnet/NDArray.scala
@@ -162,13 +162,14 @@ object NDArray {
     val name = new RefString
     val desc = new RefString
     val keyVarNumArgs = new RefString
+    val returnType = new RefString
     val numArgs = new RefInt
     val argNames = ListBuffer.empty[String]
     val argTypes = ListBuffer.empty[String]
     val argDescs = ListBuffer.empty[String]
 
     checkCall(_LIB.mxSymbolGetAtomicSymbolInfo(
-      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs))
+      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs, returnType))
     val arguments = (argTypes zip argNames).filter { case (dtype, _) =>
       !(dtype.startsWith("NDArray") || dtype.startsWith("Symbol")
         || dtype.startsWith("NDArray-or-Symbol"))
diff --git a/scala-package/core/src/main/scala/org/apache/mxnet/Symbol.scala 
b/scala-package/core/src/main/scala/org/apache/mxnet/Symbol.scala
index 13f85a731dc..05abcce18a5 100644
--- a/scala-package/core/src/main/scala/org/apache/mxnet/Symbol.scala
+++ b/scala-package/core/src/main/scala/org/apache/mxnet/Symbol.scala
@@ -29,7 +29,8 @@ import scala.collection.mutable.{ArrayBuffer, ListBuffer}
  * WARNING: it is your responsibility to clear this object through dispose().
  * </b>
  */
-class Symbol private(private[mxnet] val handle: SymbolHandle) extends 
WarnIfNotDisposed {
+class Symbol private(private[mxnet] val handle: SymbolHandle)
+  extends WarnIfNotDisposed {
   private val logger: Logger = LoggerFactory.getLogger(classOf[Symbol])
   private var disposed = false
   protected def isDisposed = disposed
@@ -822,9 +823,8 @@ class Symbol private(private[mxnet] val handle: 
SymbolHandle) extends WarnIfNotD
     jsonStr.value
   }
 }
-
 @AddSymbolFunctions(false)
-object Symbol {
+object Symbol extends SymbolBase {
   private type SymbolCreateNamedFunc = Map[String, Any] => Symbol
   private val logger = LoggerFactory.getLogger(classOf[Symbol])
   private val functions: Map[String, SymbolFunction] = initSymbolModule()
@@ -1026,13 +1026,14 @@ object Symbol {
     val name = new RefString
     val desc = new RefString
     val keyVarNumArgs = new RefString
+    val returnType = new RefString
     val numArgs = new RefInt
     val argNames = ListBuffer.empty[String]
     val argTypes = ListBuffer.empty[String]
     val argDescs = ListBuffer.empty[String]
 
     checkCall(_LIB.mxSymbolGetAtomicSymbolInfo(
-      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs))
+      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs, returnType))
     (aliasName, new SymbolFunction(handle, keyVarNumArgs.value))
   }
 
diff --git 
a/scala-package/core/src/main/scala/org/apache/mxnet/SymbolBase.scala 
b/scala-package/core/src/main/scala/org/apache/mxnet/SymbolBase.scala
new file mode 100644
index 00000000000..30a6a4c0d3f
--- /dev/null
+++ b/scala-package/core/src/main/scala/org/apache/mxnet/SymbolBase.scala
@@ -0,0 +1,20 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You 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.
+*/
+
+package org.apache.mxnet
+
+trait SymbolBase {}
\ No newline at end of file
diff --git 
a/scala-package/init-native/src/main/native/org_apache_mxnet_init_native_c_api.cc
 
b/scala-package/init-native/src/main/native/org_apache_mxnet_init_native_c_api.cc
index b689521bcad..2374c5ba331 100644
--- 
a/scala-package/init-native/src/main/native/org_apache_mxnet_init_native_c_api.cc
+++ 
b/scala-package/init-native/src/main/native/org_apache_mxnet_init_native_c_api.cc
@@ -49,8 +49,8 @@ JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_init_LibInfo_mxSymbolListAtomicSymb
 
 JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_init_LibInfo_mxSymbolGetAtomicSymbolInfo
   (JNIEnv *env, jobject obj, jlong symbolPtr, jobject name, jobject desc, 
jobject numArgs,
-    jobject argNames, jobject argTypes, jobject argDescs, jobject 
keyVarNumArgs) {
-
+    jobject argNames, jobject argTypes, jobject argDescs, jobject 
keyVarNumArgs,
+     jobject returnType) {
   const char *cName;
   const char *cDesc;
   mx_uint cNumArgs;
@@ -58,11 +58,12 @@ JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_init_LibInfo_mxSymbolGetAtomicSymbo
   const char **cArgTypes;
   const char **cArgDescs;
   const char *cKeyVarNumArgs;
+  const char *cReturnType;
 
   int ret = 
MXSymbolGetAtomicSymbolInfo(reinterpret_cast<AtomicSymbolCreator>(symbolPtr),
                                         &cName, &cDesc, &cNumArgs,
                                         &cArgNames, &cArgTypes, &cArgDescs,
-                                        &cKeyVarNumArgs);
+                                        &cKeyVarNumArgs, &cReturnType);
 
   jclass refIntClass = env->FindClass("org/apache/mxnet/init/Base$RefInt");
   jfieldID valueInt = env->GetFieldID(refIntClass, "value", "I");
@@ -78,6 +79,7 @@ JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_init_LibInfo_mxSymbolGetAtomicSymbo
   env->SetObjectField(name, valueStr, env->NewStringUTF(cName));
   env->SetObjectField(desc, valueStr, env->NewStringUTF(cDesc));
   env->SetObjectField(keyVarNumArgs, valueStr, 
env->NewStringUTF(cKeyVarNumArgs));
+  env->SetObjectField(returnType, valueStr, env->NewStringUTF(cReturnType));
   env->SetIntField(numArgs, valueInt, static_cast<jint>(cNumArgs));
   for (size_t i = 0; i < cNumArgs; ++i) {
     env->CallObjectMethod(argNames, listAppend, 
env->NewStringUTF(cArgNames[i]));
diff --git 
a/scala-package/init/src/main/scala/org/apache/mxnet/init/LibInfo.scala 
b/scala-package/init/src/main/scala/org/apache/mxnet/init/LibInfo.scala
index 7bd0c701f87..b50a81e1227 100644
--- a/scala-package/init/src/main/scala/org/apache/mxnet/init/LibInfo.scala
+++ b/scala-package/init/src/main/scala/org/apache/mxnet/init/LibInfo.scala
@@ -30,7 +30,8 @@ class LibInfo {
                                           argNames: ListBuffer[String],
                                           argTypes: ListBuffer[String],
                                           argDescs: ListBuffer[String],
-                                          keyVarNumArgs: RefString): Int
+                                          keyVarNumArgs: RefString,
+                                          returnType: RefString): Int
   @native def mxListAllOpNames(names: ListBuffer[String]): Int
   @native def nnGetOpHandle(opName: String, opHandle: RefLong): Int
 }
diff --git 
a/scala-package/macros/src/main/scala/org/apache/mxnet/NDArrayMacro.scala 
b/scala-package/macros/src/main/scala/org/apache/mxnet/NDArrayMacro.scala
index c26d14c1292..1956e6b122a 100644
--- a/scala-package/macros/src/main/scala/org/apache/mxnet/NDArrayMacro.scala
+++ b/scala-package/macros/src/main/scala/org/apache/mxnet/NDArrayMacro.scala
@@ -162,12 +162,13 @@ private[mxnet] object NDArrayMacro {
     val desc = new RefString
     val keyVarNumArgs = new RefString
     val numArgs = new RefInt
+    val returnType = new RefString
     val argNames = ListBuffer.empty[String]
     val argTypes = ListBuffer.empty[String]
     val argDescs = ListBuffer.empty[String]
 
     _LIB.mxSymbolGetAtomicSymbolInfo(
-      handle, name, desc, numArgs, argNames, argTypes, argDescs, keyVarNumArgs)
+      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs, returnType)
     val paramStr = OperatorBuildUtils.ctypes2docstring(argNames, argTypes, 
argDescs)
     val extraDoc: String = if (keyVarNumArgs.value != null && 
keyVarNumArgs.value.length > 0) {
       s"This function support variable length of positional input 
(${keyVarNumArgs.value})."
diff --git 
a/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolBaseMacro.scala 
b/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolBaseMacro.scala
new file mode 100644
index 00000000000..92ad9d4082d
--- /dev/null
+++ b/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolBaseMacro.scala
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+
+package org.apache.mxnet
+
+import scala.collection.mutable.{HashMap, ListBuffer}
+import org.apache.mxnet.init.Base._
+
+
+private[mxnet] object SymbolDocMacros {
+
+  case class SymbolFunction(handle: SymbolHandle, paramStr: String)
+
+  def addDefs() : Unit = {
+    val baseDir = System.getProperty("user.dir")
+    val targetPath = baseDir + 
"/core/src/main/scala/org/apache/mxnet/SymbolBase.scala"
+    SEImpl(targetPath)
+  }
+
+  def SEImpl(FILE_PATH : String) : Unit = {
+    var symbolFunctions: List[SymbolFunction] = initSymbolModule()
+    import java.io._
+    val pw = new PrintWriter(new File(FILE_PATH))
+    // scalastyle:off
+    pw.write("/*\n* Licensed to the Apache Software Foundation (ASF) under one 
or more\n* contributor license agreements.  See the NOTICE file distributed 
with\n* this work for additional information regarding copyright ownership.\n* 
The ASF licenses this file to You under the Apache License, Version 2.0\n* (the 
\"License\"); you may not use this file except in compliance with\n* the 
License.  You may obtain a copy of the License at\n*\n*    
http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable 
law or agreed to in writing, software\n* distributed under the License is 
distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY 
KIND, either express or implied.\n* See the License for the specific language 
governing permissions and\n* limitations under the License.\n*/\n\npackage 
org.apache.mxnet\n")
+    // scalastyle:on
+    pw.write(s"\ntrait SymbolBase {\n\n")
+    pw.write(s"  // scalastyle:off\n")
+    symbolFunctions = symbolFunctions.distinct
+    for (ele <- symbolFunctions) {
+      val temp = ele.paramStr + "\n\n"
+      pw.write(temp)
+    }
+    pw.write(s"\n\n}")
+    pw.close()
+  }
+
+
+  /*
+    Code copies from the SymbolMacros Class
+   */
+  private def initSymbolModule(): List[SymbolFunction] = {
+    var opNames = ListBuffer.empty[String]
+    _LIB.mxListAllOpNames(opNames)
+    opNames = opNames.distinct
+    val result : ListBuffer[SymbolFunction] = ListBuffer[SymbolFunction]()
+    opNames.foreach(opName => {
+      val opHandle = new RefLong
+      // printf(opName)
+      _LIB.nnGetOpHandle(opName, opHandle)
+      makeAtomicSymbolFunction(opHandle.value, opName, result)
+    })
+
+    result.toList
+  }
+
+  private def makeAtomicSymbolFunction(handle: SymbolHandle,
+                                       aliasName: String, result : 
ListBuffer[SymbolFunction])
+  : Unit = {
+    val name = new RefString
+    val desc = new RefString
+    val keyVarNumArgs = new RefString
+    val returnType = new RefString
+    val numArgs = new RefInt
+    val argNames = ListBuffer.empty[String]
+    val argTypes = ListBuffer.empty[String]
+    val argDescs = ListBuffer.empty[String]
+
+    _LIB.mxSymbolGetAtomicSymbolInfo(
+      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs, returnType)
+
+    if (name.value.charAt(0) == '_') {
+      // Internal function
+    } else {
+      val paramStr =
+        traitgen(name.value, desc.value, argNames, argTypes, argDescs, 
returnType.value)
+      val extraDoc: String = if (keyVarNumArgs.value != null && 
keyVarNumArgs.value.length > 0) {
+        s"This function support variable length of positional input 
(${keyVarNumArgs.value})."
+      } else {
+        ""
+      }
+      result +=  SymbolFunction(handle, paramStr)
+    }
+  }
+
+
+  def traitgen(functionName : String,
+               functionDesc : String,
+               argNames : Seq[String],
+               argTypes : Seq[String],
+               argDescs : Seq[String],
+               returnType : String) : String = {
+    val desc = functionDesc.split("\n") map { currStr =>
+      s"  * $currStr"
+    }
+    val params =
+      (argNames zip argTypes zip argDescs) map { case ((argName, argType), 
argDesc) =>
+        // val desc = if (argDesc.isEmpty) "" else s"\n$argDesc"
+        s"  * @param $argName\t\t$argDesc"
+      }
+    val traitsec =
+      (argNames zip argTypes) map { case ((argName, argType)) =>
+        val currArgType = CodeClean.cleanUp(argType)
+        var currArgName = ""
+        if (argName.equals("var")) {
+          currArgName = "vari"
+        } else {
+          currArgName = argName
+        }
+        s"$currArgName : $currArgType"
+      }
+    // scalastyle:off
+    val defaultConfig = s"(name : scala.Predef.String, attr : 
scala.Predef.Map[scala.Predef.String, scala.Predef.String])(args : 
org.apache.mxnet.Symbol*)(kwargs : scala.Predef.Map[scala.Predef.String, 
scala.Any]) : org.apache.mxnet.Symbol"
+    // s"/**\n${desc.mkString("\n")}\n${params.mkString("\n")}\n* @return 
$returnType\n*/\ndef $functionName(${traitsec.mkString(", ")}) : Any"
+    s"  /**\n${desc.mkString("\n")}\n${params.mkString("\n")}\n  * @return 
$returnType\n  */\n  def $functionName$defaultConfig"
+    // scalastyle:on
+  }
+}
+
+private[mxnet] object CodeClean {
+
+
+  val typeMap : HashMap[String, String] = HashMap(
+    ("Shape(tuple)", "Shape"),
+    ("Symbol", "Symbol"),
+    ("NDArray", "Symbol"),
+    ("NDArray-or-Symbol", "Symbol"),
+    // TODO: Add def
+    ("Symbol[]", "Any"),
+    ("NDArray[]", "Any"),
+    ("NDArray-or-Symbol[]", "Any"),
+    ("int(non-negative)", "Any"),
+    ("long(non-negative)", "Any"),
+    ("ShapeorNone", "Option[Shape]"),
+    ("real_t", "Any"), // MXFloat
+    ("float", "Any"),
+    ("intorNone", "Option[Int]"),
+    ("SymbolorSymbol[]", "Any"),
+    ("tupleof<float>", "Any"),
+    // End Missing section
+    ("int", "Int"),
+    ("long", "Long"),
+    ("double", "Double"),
+    ("string", "String"),
+    ("boolean", "Boolean")
+  )
+
+
+  def conversion(in : String, optional : String) : String = {
+    val out = in match {
+      // deal with []
+      case "Shape" => "new Shape()"
+      // deal with '6000' => 6000
+      case "Int" | "Option[Int]" | "Option[Shape]" => optional.replaceAll("'", 
"")
+      // deal with string default
+      case "String" => optional.replaceAll("'", "\"")
+      // Deal with Boolean
+      case "Boolean" => {
+        if (optional.charAt(0) == '0') {
+          "false"
+        } else {
+          "true"
+        }
+      }
+      // Anything else
+      case _ => optional
+    }
+
+    out
+  }
+
+  def cleanUp(in : String) : String = {
+    val spaceRemoved = in.replaceAll("\\s+", "")
+    var commaRemoved : Array[String] = new Array[String](0)
+    // Deal with the case e.g: stype : {'csr', 'default', 'row_sparse'}
+    if (spaceRemoved.charAt(0)== '{') {
+      val endIdx = spaceRemoved.indexOf('}')
+      commaRemoved = spaceRemoved.substring(endIdx + 1).split(",")
+      // commaRemoved(0) = spaceRemoved.substring(0, endIdx+1)
+      commaRemoved(0) = "string"
+    } else {
+      commaRemoved = spaceRemoved.split(",")
+    }
+    var typeConv = ""
+    var optionalField = ""
+    // println("Try to find key " + commaRemoved(0))
+    if (commaRemoved.length < 1) {
+      printf("Empty Field Generated\n")
+    } else if (commaRemoved.length == 3) {
+
+      // Something to do with Optional
+      typeConv = typeMap(commaRemoved(0))
+      optionalField = " = " + conversion(typeConv, 
commaRemoved(2).split("=")(1))
+    } else if (commaRemoved.length > 3) {
+      // TODO: Field over 3, need to rework
+      typeConv = "Any"
+      printf("Field Over 3, please reformat %s", in)
+    } else {
+      typeConv = typeMap(commaRemoved(0))
+    }
+    //    if (!typeMap.contains(commaRemoved(0))) {
+    //      logger.error("First Field not recognized " + commaRemoved(0))
+    //    } else {
+    //      typeConv = typeMap(commaRemoved(0))
+    //    }
+    val out = typeConv + optionalField
+    out
+  }
+
+}
\ No newline at end of file
diff --git 
a/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolMacro.scala 
b/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolMacro.scala
index b6ddaafc7ad..e23c2edcaad 100644
--- a/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolMacro.scala
+++ b/scala-package/macros/src/main/scala/org/apache/mxnet/SymbolMacro.scala
@@ -34,6 +34,7 @@ private[mxnet] object SymbolImplMacros {
 
   // scalastyle:off havetype
   def addDefs(c: blackbox.Context)(annottees: c.Expr[Any]*) = {
+    SymbolDocMacros.addDefs()
     impl(c)(false, annottees: _*)
   }
   // scalastyle:off havetype
@@ -154,12 +155,13 @@ private[mxnet] object SymbolImplMacros {
     val desc = new RefString
     val keyVarNumArgs = new RefString
     val numArgs = new RefInt
+    val returnType = new RefString
     val argNames = ListBuffer.empty[String]
     val argTypes = ListBuffer.empty[String]
     val argDescs = ListBuffer.empty[String]
 
     _LIB.mxSymbolGetAtomicSymbolInfo(
-      handle, name, desc, numArgs, argNames, argTypes, argDescs, keyVarNumArgs)
+      handle, name, desc, numArgs, argNames, argTypes, argDescs, 
keyVarNumArgs, returnType)
     val paramStr = OperatorBuildUtils.ctypes2docstring(argNames, argTypes, 
argDescs)
     val extraDoc: String = if (keyVarNumArgs.value != null && 
keyVarNumArgs.value.length > 0) {
         s"This function support variable length of positional input 
(${keyVarNumArgs.value})."
diff --git 
a/scala-package/native/src/main/native/org_apache_mxnet_native_c_api.cc 
b/scala-package/native/src/main/native/org_apache_mxnet_native_c_api.cc
index caf7e56cd3b..ebd1e83dcb7 100644
--- a/scala-package/native/src/main/native/org_apache_mxnet_native_c_api.cc
+++ b/scala-package/native/src/main/native/org_apache_mxnet_native_c_api.cc
@@ -1120,8 +1120,8 @@ JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_LibInfo_mxSymbolListAtomicSymbolCre
 
 JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_LibInfo_mxSymbolGetAtomicSymbolInfo
   (JNIEnv *env, jobject obj, jlong symbolPtr, jobject name, jobject desc, 
jobject numArgs,
-    jobject argNames, jobject argTypes, jobject argDescs, jobject 
keyVarNumArgs) {
-
+    jobject argNames, jobject argTypes, jobject argDescs, jobject 
keyVarNumArgs,
+     jobject returnType) {
   const char *cName;
   const char *cDesc;
   mx_uint cNumArgs;
@@ -1129,11 +1129,12 @@ JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_LibInfo_mxSymbolGetAtomicSymbolInfo
   const char **cArgTypes;
   const char **cArgDescs;
   const char *cKeyVarNumArgs;
+  const char *cReturnType;
 
   int ret = 
MXSymbolGetAtomicSymbolInfo(reinterpret_cast<AtomicSymbolCreator>(symbolPtr),
                                         &cName, &cDesc, &cNumArgs,
                                         &cArgNames, &cArgTypes, &cArgDescs,
-                                        &cKeyVarNumArgs);
+                                        &cKeyVarNumArgs, &cReturnType);
 
   jclass refIntClass = env->FindClass("org/apache/mxnet/Base$RefInt");
   jfieldID valueInt = env->GetFieldID(refIntClass, "value", "I");
@@ -1149,6 +1150,7 @@ JNIEXPORT jint JNICALL 
Java_org_apache_mxnet_LibInfo_mxSymbolGetAtomicSymbolInfo
   env->SetObjectField(name, valueStr, env->NewStringUTF(cName));
   env->SetObjectField(desc, valueStr, env->NewStringUTF(cDesc));
   env->SetObjectField(keyVarNumArgs, valueStr, 
env->NewStringUTF(cKeyVarNumArgs));
+  env->SetObjectField(returnType, valueStr, env->NewStringUTF(cReturnType));
   env->SetIntField(numArgs, valueInt, static_cast<jint>(cNumArgs));
   for (size_t i = 0; i < cNumArgs; ++i) {
     env->CallObjectMethod(argNames, listAppend, 
env->NewStringUTF(cArgNames[i]));


 

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