[REFACTOR] Use more TypedPackedFuncs

include/tvm/runtime/registry.h

@@ -83,6 +83,169 @@ class Registry {
   Registry& set_body_typed(FLambda f) {
     return set_body(TypedPackedFunc<FType>(f).packed());
   }
+
+  /*!
+   * \brief set the body of the function to the given function pointer.
+   *        Note that this doesn't work with lambdas, you need to
+   *        explicitly give a type for those.
+   *        Note that this will ignore default arg values and always require all arguments to be provided.
+   *
+   * \code
+   * 
+   * int multiply(int x, int y) {
+   *   return x * y;
+   * }
+   *
+   * TVM_REGISTER_API("multiply")
+   * .set_body_typed(multiply); // will have type int(int, int)
+   *
+   * \endcode
+   *
+   * \param f The function to forward to.
+   * \tparam R the return type of the function (inferred).
+   * \tparam Args the argument types of the function (inferred).
+   */
+  template<typename R, typename ...Args>
+  Registry& set_body_typed(R (*f)(Args...)) {
+    return set_body(TypedPackedFunc<R(Args...)>(f));
+  }
+
+  /*!
+   * \brief set the body of the function to be the passed method pointer.
+   *        Note that this will ignore default arg values and always require all arguments to be provided.
+   *
+   * \code
+   * 
+   * // node subclass:
+   * struct Example {
+   *    int doThing(int x);
+   * }
+   * TVM_REGISTER_API("Example_doThing")
+   * .set_body_method(&Example::doThing); // will have type int(Example, int)
+   *
+   * \endcode
+   *
+   * \param f the method pointer to forward to.
+   * \tparam T the type containing the method (inferred).
+   * \tparam R the return type of the function (inferred).
+   * \tparam Args the argument types of the function (inferred).
+   */
+  template<typename T, typename R, typename ...Args>
+  Registry& set_body_method(R (T::*f)(Args...)) {
+    return set_body_typed<R(T, Args...)>([f](T target, Args... params) -> R {
+      // call method pointer
+      return (target.*f)(params...);
+    });
+  }
+
+  /*!
+   * \brief set the body of the function to be the passed method pointer.
+   *        Note that this will ignore default arg values and always require all arguments to be provided.
+   *
+   * \code
+   * 
+   * // node subclass:
+   * struct Example {
+   *    int doThing(int x);
+   * }
+   * TVM_REGISTER_API("Example_doThing")
+   * .set_body_method(&Example::doThing); // will have type int(Example, int)
+   *
+   * \endcode
+   *
+   * \param f the method pointer to forward to.
+   * \tparam T the type containing the method (inferred).
+   * \tparam R the return type of the function (inferred).
+   * \tparam Args the argument types of the function (inferred).
+   */
+  template<typename T, typename R, typename ...Args>
+  Registry& set_body_method(R (T::*f)(Args...) const) {
+    return set_body_typed<R(T, Args...)>([f](const T target, Args... params) -> R {
+      // call method pointer
+      return (target.*f)(params...);
+    });
+  }
+
+  /*!
+   * \brief set the body of the function to be the passed method pointer.
+   *        Used when calling a method on a Node subclass through a NodeRef subclass.
+   *        Note that this will ignore default arg values and always require all arguments to be provided.
+   *
+   * \code
+   * 
+   * // node subclass:
+   * struct ExampleNode: BaseNode {
+   *    int doThing(int x);
+   * }
+   * 
+   * // noderef subclass
+   * struct Example; 
+   *
+   * TVM_REGISTER_API("Example_doThing")
+   * .set_body_method<Example>(&ExampleNode::doThing); // will have type int(Example, int)
+   * 
+   * // note that just doing:
+   * // .set_body_method(&ExampleNode::doThing);
+   * // wouldn't work, because ExampleNode can't be taken from a TVMArgValue.
+   *
+   * \endcode
+   *
+   * \param f the method pointer to forward to.
+   * \tparam TNodeRef the node reference type to call the method on
+   * \tparam TNode the node type containing the method (inferred).
+   * \tparam R the return type of the function (inferred).
+   * \tparam Args the argument types of the function (inferred).
+   */
+  template<typename TNodeRef, typename TNode, typename R, typename ...Args,
+    typename = typename std::enable_if<std::is_base_of<NodeRef, TNodeRef>::value>::type>
+  Registry& set_body_method(R (TNode::*f)(Args...)) {
+    return set_body_typed<R(TNodeRef, Args...)>([f](TNodeRef ref, Args... params) {
+      TNode* target = ref.operator->();
+      // call method pointer
+      return (target->*f)(params...);
+    });
+  }
+
+  /*!
+   * \brief set the body of the function to be the passed method pointer.
+   *        Used when calling a method on a Node subclass through a NodeRef subclass.
+   *        Note that this will ignore default arg values and always require all arguments to be provided.
+   *
+   * \code
+   * 
+   * // node subclass:
+   * struct ExampleNode: BaseNode {
+   *    int doThing(int x);
+   * }
+   * 
+   * // noderef subclass
+   * struct Example; 
+   *
+   * TVM_REGISTER_API("Example_doThing")
+   * .set_body_method<Example>(&ExampleNode::doThing); // will have type int(Example, int)
+   * 
+   * // note that just doing:
+   * // .set_body_method(&ExampleNode::doThing);
+   * // wouldn't work, because ExampleNode can't be taken from a TVMArgValue.
+   *
+   * \endcode
+   *
+   * \param f the method pointer to forward to.
+   * \tparam TNodeRef the node reference type to call the method on
+   * \tparam TNode the node type containing the method (inferred).
+   * \tparam R the return type of the function (inferred).
+   * \tparam Args the argument types of the function (inferred).
+   */
+  template<typename TNodeRef, typename TNode, typename R, typename ...Args,
+    typename = typename std::enable_if<std::is_base_of<NodeRef, TNodeRef>::value>::type>
+  Registry& set_body_method(R (TNode::*f)(Args...) const) {
+    return set_body_typed<R(TNodeRef, Args...)>([f](TNodeRef ref, Args... params) {
+      const TNode* target = ref.operator->();
+      // call method pointer
+      return (target->*f)(params...);
+    });
+  }
+
   /*!
    * \brief Register a function with given name
    * \param name The name of the function.

nnvm/src/compiler/compile_engine.cc

@@ -360,9 +360,7 @@ TVM_REGISTER_GLOBAL("nnvm.compiler.GraphKeyGetGraph")
   });
 
 TVM_REGISTER_GLOBAL("nnvm.compiler.MakeGraphKey")
-.set_body([](tvm::runtime::TVMArgs args, tvm::runtime::TVMRetValue *rv) {
-    *rv = GraphKeyNode::make(args[0], args[1], args[2]);
-  });
+.set_body_typed(GraphKeyNode::make);
 
 // This can be used to extract workloads from nnvm compiler
 TVM_REGISTER_GLOBAL("nnvm.compiler.CacheItem2ScheduleArgs")

nnvm/src/compiler/graph_hash.cc

@@ -235,8 +235,6 @@ std::string GraphDeepCompare(const Graph& a,
 }
 
 TVM_REGISTER_GLOBAL("nnvm.graph.DeepCompare")
-.set_body([](tvm::runtime::TVMArgs args, tvm::runtime::TVMRetValue *rv) {
-    *rv = GraphDeepCompare(args[0], args[1], args[2]);
-  });
+.set_body_typed(GraphDeepCompare);
 }  // namespace compiler
 }  // namespace nnvm

src/api/api_arith.cc

@@ -31,73 +31,51 @@ namespace tvm {
 namespace arith {
 
 TVM_REGISTER_API("arith.intset_single_point")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = IntSet::single_point(args[0]);
-  });
+.set_body_typed(IntSet::single_point);
 
 TVM_REGISTER_API("arith.intset_vector")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = IntSet::vector(args[0]);
-  });
+.set_body_typed(IntSet::vector);
 
 TVM_REGISTER_API("arith.intset_interval")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = IntSet::interval(args[0], args[1]);
-  });
+.set_body_typed(IntSet::interval);
 
 TVM_REGISTER_API("arith.DetectLinearEquation")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = DetectLinearEquation(args[0], args[1]);
-  });
+.set_body_typed(DetectLinearEquation);
 
 TVM_REGISTER_API("arith.DetectClipBound")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = DetectClipBound(args[0], args[1]);
-  });
+.set_body_typed(DetectClipBound);
 
 TVM_REGISTER_API("arith.DeduceBound")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = DeduceBound(args[0], args[1],
-        args[2].operator Map<Var, IntSet>(),
-        args[3].operator Map<Var, IntSet>());
-  });
+.set_body_typed<IntSet(Expr, Expr, Map<Var, IntSet>, Map<Var, IntSet>)>([](
+  Expr v, Expr cond,
+  const Map<Var, IntSet> hint_map,
+  const Map<Var, IntSet> relax_map
+) {
+  return DeduceBound(v, cond, hint_map, relax_map);
+});
 
 
 TVM_REGISTER_API("arith.DomainTouched")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = DomainTouched(args[0], args[1], args[2], args[3]);
-  });
+.set_body_typed(DomainTouched);
 
 
 TVM_REGISTER_API("_IntervalSetGetMin")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = args[0].operator IntSet().min();
-  });
+.set_body_method(&IntSet::min);
 
 TVM_REGISTER_API("_IntervalSetGetMax")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = args[0].operator IntSet().max();
-  });
+.set_body_method(&IntSet::max);
 
 TVM_REGISTER_API("_IntSetIsNothing")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = args[0].operator IntSet().is_nothing();
-  });
+.set_body_method(&IntSet::is_nothing);
 
 TVM_REGISTER_API("_IntSetIsEverything")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = args[0].operator IntSet().is_everything();
-  });
+.set_body_method(&IntSet::is_everything);
 
 TVM_REGISTER_API("arith._make_ConstIntBound")
-.set_body([](TVMArgs args, TVMRetValue* ret) {
-    *ret = ConstIntBoundNode::make(args[0], args[1]);
-  });
+.set_body_typed(ConstIntBoundNode::make);
 
 TVM_REGISTER_API("arith._make_ModularSet")
-.set_body([](TVMArgs args, TVMRetValue* ret) {
-    *ret = ModularSetNode::make(args[0], args[1]);
-  });
+.set_body_typed(ModularSetNode::make);
 
 TVM_REGISTER_API("arith._CreateAnalyzer")
 .set_body([](TVMArgs args, TVMRetValue* ret) {

src/api/api_base.cc

@@ -50,9 +50,8 @@ TVM_REGISTER_API("_load_json")
 .set_body_typed<NodeRef(std::string)>(LoadJSON<NodeRef>);
 
 TVM_REGISTER_API("_TVMSetStream")
-.set_body([](TVMArgs args,  TVMRetValue *ret) {
-    TVMSetStream(args[0], args[1], args[2]);
-  });
+.set_body_typed(TVMSetStream);
+
 TVM_REGISTER_API("_save_param_dict")
 .set_body([](TVMArgs args, TVMRetValue *rv) {
     CHECK_EQ(args.size() % 2, 0u);

src/api/api_codegen.cc

@@ -41,8 +41,6 @@ TVM_REGISTER_API("codegen._Build")
   });
 
 TVM_REGISTER_API("module._PackImportsToC")
-.set_body([](TVMArgs args, TVMRetValue *ret) {
-    *ret = PackImportsToC(args[0], args[1]);
-  });
+.set_body_typed(PackImportsToC);
 }  // namespace codegen
 }  // namespace tvm