[runtime] Introduce dedicated JSBoundFunction to represent bound functions.

src/objects-printer.cc

 // 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.
 
 #include "src/objects.h"
 
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/objects-inl.h"
@@ skipping 92 matching lines @@
       break;
     case JS_REGEXP_TYPE:
       JSRegExp::cast(this)->JSRegExpPrint(os);
       break;
     case ODDBALL_TYPE:
       Oddball::cast(this)->to_string()->Print(os);
       break;
     case JS_MODULE_TYPE:
       JSModule::cast(this)->JSModulePrint(os);
       break;
+    case JS_BOUND_FUNCTION_TYPE:
+      JSBoundFunction::cast(this)->JSBoundFunctionPrint(os);
+      break;
     case JS_FUNCTION_TYPE:
       JSFunction::cast(this)->JSFunctionPrint(os);
       break;
     case JS_GLOBAL_PROXY_TYPE:
       JSGlobalProxy::cast(this)->JSGlobalProxyPrint(os);
       break;
     case JS_GLOBAL_OBJECT_TYPE:
       JSGlobalObject::cast(this)->JSGlobalObjectPrint(os);
       break;
     case JS_VALUE_TYPE:
@@ skipping 714 matching lines @@
 void JSDataView::JSDataViewPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSDataView");
   os << "\n - buffer =" << Brief(buffer());
   os << "\n - byte_offset = " << Brief(byte_offset());
   os << "\n - byte_length = " << Brief(byte_length());
   if (WasNeutered()) os << " - neutered\n";
   JSObjectPrintBody(os, this, !WasNeutered());
 }
 
 
+void JSBoundFunction::JSBoundFunctionPrint(std::ostream& os) {  // NOLINT
+  JSObjectPrintHeader(os, this, "JSBoundFunction");
+  os << "\n - bound_target_function = " << Brief(bound_target_function());
+  os << "\n - bound_this = " << Brief(bound_this());
+  os << "\n - bound_arguments = " << Brief(bound_arguments());
+  JSObjectPrintBody(os, this);
+}
+
+
 void JSFunction::JSFunctionPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "Function");
   os << "\n - initial_map = ";
   if (has_initial_map()) os << Brief(initial_map());
   os << "\n - shared_info = " << Brief(shared());
   os << "\n - name = " << Brief(shared()->name());
   if (shared()->is_generator()) {
     os << "\n   - generator";
   }
   os << "\n - context = " << Brief(context());
-  if (shared()->bound()) {
-    os << "\n - bindings = " << Brief(function_bindings());
-  } else {
-    os << "\n - literals = " << Brief(literals());
-  }
+  os << "\n - literals = " << Brief(literals());
   os << "\n - code = " << Brief(code());
   JSObjectPrintBody(os, this);
 }
 
 
 void SharedFunctionInfo::SharedFunctionInfoPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "SharedFunctionInfo");
   os << " - name: " << Brief(name());
   os << "\n - expected_nof_properties: " << expected_nof_properties();
   os << "\n - ast_node_count: " << ast_node_count();
@@ skipping 442 matching lines @@
 void JSObject::PrintTransitions(std::ostream& os) {  // NOLINT
   Object* transitions = map()->raw_transitions();
   int num_transitions = TransitionArray::NumberOfTransitions(transitions);
   if (num_transitions == 0) return;
   os << "\n - transitions";
   TransitionArray::PrintTransitions(os, transitions, false);
 }
 #endif  // defined(DEBUG) || defined(OBJECT_PRINT)
 }  // namespace internal
 }  // namespace v8