[stubs] Using template magic to get the call interface descriptor type from callable.

src/code-factory.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CODE_FACTORY_H_
 #define V8_CODE_FACTORY_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
 #include "src/globals.h"
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
 
 // Associates a body of code with an interface descriptor.
-class Callable final BASE_EMBEDDED {
+class Callable BASE_EMBEDDED {
  public:
   Callable(Handle<Code> code, CallInterfaceDescriptor descriptor)
       : code_(code), descriptor_(descriptor) {}
 
   Handle<Code> code() const { return code_; }
   CallInterfaceDescriptor descriptor() const { return descriptor_; }
 
  private:
   const Handle<Code> code_;
   const CallInterfaceDescriptor descriptor_;
 };
 
+template <typename DescriptorT>
+class CallableD final : public Callable {
+ public:
+  typedef DescriptorT Descriptor;
+
+  CallableD(Handle<Code> code, Isolate* isolate)
+      : Callable(code, Descriptor(isolate)) {}
+};
 
 class CodeFactory final {
  public:
   // Initial states for ICs.
   static Callable LoadIC(Isolate* isolate);
-  static Callable LoadICInOptimizedCode(Isolate* isolate);
+  static CallableD<LoadWithVectorDescriptor> LoadICInOptimizedCode(
+      Isolate* isolate);
   static Callable LoadGlobalIC(Isolate* isolate, TypeofMode typeof_mode);
-  static Callable LoadGlobalICInOptimizedCode(Isolate* isolate,
-                                              TypeofMode typeof_mode);
+  static CallableD<LoadGlobalWithVectorDescriptor> LoadGlobalICInOptimizedCode(
+      Isolate* isolate, TypeofMode typeof_mode);
   static Callable KeyedLoadIC(Isolate* isolate);
-  static Callable KeyedLoadICInOptimizedCode(Isolate* isolate);
+  static CallableD<LoadWithVectorDescriptor> KeyedLoadICInOptimizedCode(
+      Isolate* isolate);
   static Callable KeyedLoadIC_Megamorphic(Isolate* isolate);
   static Callable CallIC(Isolate* isolate, int argc,
                          ConvertReceiverMode mode = ConvertReceiverMode::kAny,
                          TailCallMode tail_call_mode = TailCallMode::kDisallow);
   static Callable CallICInOptimizedCode(
       Isolate* isolate, int argc,
       ConvertReceiverMode mode = ConvertReceiverMode::kAny,
       TailCallMode tail_call_mode = TailCallMode::kDisallow);
   static Callable StoreIC(Isolate* isolate, LanguageMode mode);
-  static Callable StoreICInOptimizedCode(Isolate* isolate, LanguageMode mode);
+  static CallableD<StoreWithVectorDescriptor> StoreICInOptimizedCode(
+      Isolate* isolate, LanguageMode mode);
   static Callable KeyedStoreIC(Isolate* isolate, LanguageMode mode);
-  static Callable KeyedStoreICInOptimizedCode(Isolate* isolate,
-                                              LanguageMode mode);
+  static CallableD<StoreWithVectorDescriptor> KeyedStoreICInOptimizedCode(
+      Isolate* isolate, LanguageMode mode);
 
   static Callable ResumeGenerator(Isolate* isolate);
 
   static Callable CompareIC(Isolate* isolate, Token::Value op);
   static Callable CompareNilIC(Isolate* isolate, NilValue nil_value);
 
   static Callable BinaryOpIC(Isolate* isolate, Token::Value op);
 
   static Callable ApiGetter(Isolate* isolate);
 
@@ skipping 93 matching lines @@
       CallableType function_type = CallableType::kAny);
   static Callable InterpreterPushArgsAndConstruct(Isolate* isolate);
   static Callable InterpreterCEntry(Isolate* isolate, int result_size = 1);
   static Callable InterpreterOnStackReplacement(Isolate* isolate);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_FACTORY_H_