Implement set trap for proxies, and revamp class hierarchy in preparation

src/x64/full-codegen-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 865 matching lines @@
   __ CompareRoot(rax, Heap::kUndefinedValueRootIndex);
   __ j(equal, &exit);
   Register null_value = rdi;
   __ LoadRoot(null_value, Heap::kNullValueRootIndex);
   __ cmpq(rax, null_value);
   __ j(equal, &exit);
 
   // Convert the object to a JS object.
   Label convert, done_convert;
   __ JumpIfSmi(rax, &convert);
-  __ CmpObjectType(rax, FIRST_JS_OBJECT_TYPE, rcx);
+  __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rcx);
   __ j(above_equal, &done_convert);
   __ bind(&convert);
   __ push(rax);
   __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
   __ bind(&done_convert);
   __ push(rax);
 
   // Check cache validity in generated code. This is a fast case for
   // the JSObject::IsSimpleEnum cache validity checks. If we cannot
   // guarantee cache validity, call the runtime system to check cache
@@ skipping 1474 matching lines @@
 
   __ JumpIfSmi(rax, if_false);
   __ CompareRoot(rax, Heap::kNullValueRootIndex);
   __ j(equal, if_true);
   __ movq(rbx, FieldOperand(rax, HeapObject::kMapOffset));
   // Undetectable objects behave like undefined when tested with typeof.
   __ testb(FieldOperand(rbx, Map::kBitFieldOffset),
            Immediate(1 << Map::kIsUndetectable));
   __ j(not_zero, if_false);
   __ movzxbq(rbx, FieldOperand(rbx, Map::kInstanceTypeOffset));
-  __ cmpq(rbx, Immediate(FIRST_JS_OBJECT_TYPE));
+  __ cmpq(rbx, Immediate(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE));
   __ j(below, if_false);
-  __ cmpq(rbx, Immediate(LAST_JS_OBJECT_TYPE));
+  __ cmpq(rbx, Immediate(LAST_NONCALLABLE_SPEC_OBJECT_TYPE));
   PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
   Split(below_equal, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsSpecObject(ZoneList<Expression*>* args) {
   ASSERT(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
   context()->PrepareTest(&materialize_true, &materialize_false,
                          &if_true, &if_false, &fall_through);
 
   __ JumpIfSmi(rax, if_false);
-  __ CmpObjectType(rax, FIRST_JS_OBJECT_TYPE, rbx);
+  __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rbx);
   PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
   Split(above_equal, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsUndetectableObject(ZoneList<Expression*>* args) {
   ASSERT(args->length() == 1);
 
@@ skipping 258 matching lines @@
   ASSERT(args->length() == 1);
   Label done, null, function, non_function_constructor;
 
   VisitForAccumulatorValue(args->at(0));
 
   // If the object is a smi, we return null.
   __ JumpIfSmi(rax, &null);
 
   // Check that the object is a JS object but take special care of JS
   // functions to make sure they have 'Function' as their class.
-  __ CmpObjectType(rax, FIRST_JS_OBJECT_TYPE, rax);  // Map is now in rax.
+  __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rax);
+  // Map is now in rax.
   __ j(below, &null);
 
-  // As long as JS_FUNCTION_TYPE is the last instance type and it is
-  // right after LAST_JS_OBJECT_TYPE, we can avoid checking for
-  // LAST_JS_OBJECT_TYPE.
-  ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
-  ASSERT(JS_FUNCTION_TYPE == LAST_JS_OBJECT_TYPE + 1);
-  __ CmpInstanceType(rax, JS_FUNCTION_TYPE);
-  __ j(equal, &function);
+  // As long as LAST_CALLABLE_SPEC_OBJECT_TYPE is the last instance type, and
+  // FIRST_CALLABLE_SPEC_OBJECT_TYPE comes right after
+  // LAST_NONCALLABLE_SPEC_OBJECT_TYPE, we can avoid checking for the latter.
+  STATIC_ASSERT(LAST_TYPE == LAST_CALLABLE_SPEC_OBJECT_TYPE);
+  STATIC_ASSERT(FIRST_CALLABLE_SPEC_OBJECT_TYPE ==
+                LAST_NONCALLABLE_SPEC_OBJECT_TYPE + 1);
+  __ CmpInstanceType(rax, FIRST_CALLABLE_SPEC_OBJECT_TYPE);
+  __ j(above_equal, &function);
 
   // Check if the constructor in the map is a function.
   __ movq(rax, FieldOperand(rax, Map::kConstructorOffset));
   __ CmpObjectType(rax, JS_FUNCTION_TYPE, rbx);
   __ j(not_equal, &non_function_constructor);
 
   // rax now contains the constructor function. Grab the
   // instance class name from there.
   __ movq(rax, FieldOperand(rax, JSFunction::kSharedFunctionInfoOffset));
   __ movq(rax, FieldOperand(rax, SharedFunctionInfo::kInstanceClassNameOffset));
@@ skipping 1329 matching lines @@
     __ CompareRoot(rax, Heap::kUndefinedValueRootIndex);
     __ j(equal, if_true);
     __ JumpIfSmi(rax, if_false);
     // Check for undetectable objects => true.
     __ movq(rdx, FieldOperand(rax, HeapObject::kMapOffset));
     __ testb(FieldOperand(rdx, Map::kBitFieldOffset),
              Immediate(1 << Map::kIsUndetectable));
     Split(not_zero, if_true, if_false, fall_through);
   } else if (check->Equals(isolate()->heap()->function_symbol())) {
     __ JumpIfSmi(rax, if_false);
-    __ CmpObjectType(rax, FIRST_FUNCTION_CLASS_TYPE, rdx);
+    STATIC_ASSERT(LAST_CALLABLE_SPEC_OBJECT_TYPE == LAST_TYPE);
+    __ CmpObjectType(rax, FIRST_CALLABLE_SPEC_OBJECT_TYPE, rdx);
     Split(above_equal, if_true, if_false, fall_through);
   } else if (check->Equals(isolate()->heap()->object_symbol())) {
     __ JumpIfSmi(rax, if_false);
     __ CompareRoot(rax, Heap::kNullValueRootIndex);
     __ j(equal, if_true);
-    __ CmpObjectType(rax, FIRST_JS_OBJECT_TYPE, rdx);
+    __ CmpObjectType(rax, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, rdx);
     __ j(below, if_false);
-    __ CmpInstanceType(rdx, FIRST_FUNCTION_CLASS_TYPE);
-    __ j(above_equal, if_false);
+    __ CmpInstanceType(rdx, LAST_NONCALLABLE_SPEC_OBJECT_TYPE);
+    __ j(above, if_false);
     // Check for undetectable objects => false.
     __ testb(FieldOperand(rdx, Map::kBitFieldOffset),
              Immediate(1 << Map::kIsUndetectable));
     Split(zero, if_true, if_false, fall_through);
   } else {
     if (if_false != fall_through) __ jmp(if_false);
   }
 
   return true;
 }
@@ skipping 253 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64