Refactor CreateApiFunction

src/objects.cc

 // Copyright 2015 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.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 5205 matching lines @@
   if (!function->bound_target_function()->IsJSFunction()) return prefix;
   Handle<JSFunction> target(JSFunction::cast(function->bound_target_function()),
                             isolate);
   Handle<Object> target_name = JSFunction::GetName(isolate, target);
   if (!target_name->IsString()) return prefix;
   Factory* factory = isolate->factory();
   return factory->NewConsString(prefix, Handle<String>::cast(target_name));
 }
 
 // static
+Handle<Object> JSFunction::GetPrototype(Isolate* isolate,
+                                        Handle<JSFunction> function) {
+  DCHECK(function->IsConstructor() || function->shared()->is_generator());
+  if (!function->has_prototype()) {
+    Handle<Object> proto = isolate->factory()->NewFunctionPrototype(function);
+    JSFunction::SetPrototype(function, proto);
+  }
+  return handle(function->prototype(), isolate);
+}
+
+// static
 Handle<Object> JSFunction::GetName(Isolate* isolate,
                                    Handle<JSFunction> function) {
   if (function->shared()->name_should_print_as_anonymous()) {
     return isolate->factory()->anonymous_string();
   }
   return handle(function->shared()->name(), isolate);
 }
 
 // static
 MaybeHandle<Smi> JSFunction::GetLength(Isolate* isolate,
@@ skipping 13639 matching lines @@
   } else {
     // Old-style generators.
     int offset = continuation();
     CHECK(0 <= offset && offset < function()->code()->instruction_size());
     return function()->code()->SourcePosition(offset);
   }
 }
 
 }  // namespace internal
 }  // namespace v8