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

src/arm/code-stubs-arm.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 911 matching lines @@
   __ b(ne, &not_identical);
 
   // The two objects are identical.  If we know that one of them isn't NaN then
   // we now know they test equal.
   if (cond != eq || !never_nan_nan) {
     // Test for NaN. Sadly, we can't just compare to FACTORY->nan_value(),
     // so we do the second best thing - test it ourselves.
     // They are both equal and they are not both Smis so both of them are not
     // Smis.  If it's not a heap number, then return equal.
     if (cond == lt || cond == gt) {
-      __ CompareObjectType(r0, r4, r4, FIRST_JS_OBJECT_TYPE);
+      __ CompareObjectType(r0, r4, r4, FIRST_SPEC_OBJECT_TYPE);
       __ b(ge, slow);
     } else {
       __ CompareObjectType(r0, r4, r4, HEAP_NUMBER_TYPE);
       __ b(eq, &heap_number);
       // Comparing JS objects with <=, >= is complicated.
       if (cond != eq) {
-        __ cmp(r4, Operand(FIRST_JS_OBJECT_TYPE));
+        __ cmp(r4, Operand(FIRST_SPEC_OBJECT_TYPE));
         __ b(ge, slow);
         // Normally here we fall through to return_equal, but undefined is
         // special: (undefined == undefined) == true, but
         // (undefined <= undefined) == false!  See ECMAScript 11.8.5.
         if (cond == le || cond == ge) {
           __ cmp(r4, Operand(ODDBALL_TYPE));
           __ b(ne, &return_equal);
           __ LoadRoot(r2, Heap::kUndefinedValueRootIndex);
           __ cmp(r0, r2);
           __ b(ne, &return_equal);
@@ skipping 261 matching lines @@
 }
 
 
 // See comment at call site.
 static void EmitStrictTwoHeapObjectCompare(MacroAssembler* masm,
                                            Register lhs,
                                            Register rhs) {
     ASSERT((lhs.is(r0) && rhs.is(r1)) ||
            (lhs.is(r1) && rhs.is(r0)));
 
-    // If either operand is a JSObject or an oddball value, then they are
+    // If either operand is a JS object or an oddball value, then they are
     // not equal since their pointers are different.
     // There is no test for undetectability in strict equality.
-    STATIC_ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
+    STATIC_ASSERT(LAST_TYPE == LAST_CALLABLE_SPEC_OBJECT_TYPE);
     Label first_non_object;
     // Get the type of the first operand into r2 and compare it with
-    // FIRST_JS_OBJECT_TYPE.
-    __ CompareObjectType(rhs, r2, r2, FIRST_JS_OBJECT_TYPE);
+    // FIRST_SPEC_OBJECT_TYPE.
+    __ CompareObjectType(rhs, r2, r2, FIRST_SPEC_OBJECT_TYPE);
     __ b(lt, &first_non_object);
 
     // Return non-zero (r0 is not zero)
     Label return_not_equal;
     __ bind(&return_not_equal);
     __ Ret();
 
     __ bind(&first_non_object);
     // Check for oddballs: true, false, null, undefined.
     __ cmp(r2, Operand(ODDBALL_TYPE));
     __ b(eq, &return_not_equal);
 
-    __ CompareObjectType(lhs, r3, r3, FIRST_JS_OBJECT_TYPE);
+    __ CompareObjectType(lhs, r3, r3, FIRST_SPEC_OBJECT_TYPE);
     __ b(ge, &return_not_equal);
 
     // Check for oddballs: true, false, null, undefined.
     __ cmp(r3, Operand(ODDBALL_TYPE));
     __ b(eq, &return_not_equal);
 
     // Now that we have the types we might as well check for symbol-symbol.
     // Ensure that no non-strings have the symbol bit set.
     STATIC_ASSERT(LAST_TYPE < kNotStringTag + kIsSymbolMask);
     STATIC_ASSERT(kSymbolTag != 0);
@@ skipping 56 matching lines @@
   __ b(ge, not_both_strings);
   __ tst(r3, Operand(kIsSymbolMask));
   __ b(eq, possible_strings);
 
   // Both are symbols.  We already checked they weren't the same pointer
   // so they are not equal.
   __ mov(r0, Operand(NOT_EQUAL));
   __ Ret();
 
   __ bind(&object_test);
-  __ cmp(r2, Operand(FIRST_JS_OBJECT_TYPE));
+  __ cmp(r2, Operand(FIRST_SPEC_OBJECT_TYPE));
   __ b(lt, not_both_strings);
-  __ CompareObjectType(lhs, r2, r3, FIRST_JS_OBJECT_TYPE);
+  __ CompareObjectType(lhs, r2, r3, FIRST_SPEC_OBJECT_TYPE);
   __ b(lt, not_both_strings);
   // If both objects are undetectable, they are equal. Otherwise, they
   // are not equal, since they are different objects and an object is not
   // equal to undefined.
   __ ldr(r3, FieldMemOperand(rhs, HeapObject::kMapOffset));
   __ ldrb(r2, FieldMemOperand(r2, Map::kBitFieldOffset));
   __ ldrb(r3, FieldMemOperand(r3, Map::kBitFieldOffset));
   __ and_(r0, r2, Operand(r3));
   __ and_(r0, r0, Operand(1 << Map::kIsUndetectable));
   __ eor(r0, r0, Operand(1 << Map::kIsUndetectable));
@@ skipping 339 matching lines @@
   // Undetectable => false.
   __ ldr(ip, FieldMemOperand(tos_, HeapObject::kMapOffset));
   __ ldrb(scratch, FieldMemOperand(ip, Map::kBitFieldOffset));
   __ and_(scratch, scratch, Operand(1 << Map::kIsUndetectable));
   __ cmp(scratch, Operand(1 << Map::kIsUndetectable));
   __ b(&false_result, eq);
 
   // JavaScript object => true.
   __ ldr(scratch, FieldMemOperand(tos_, HeapObject::kMapOffset));
   __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));
-  __ cmp(scratch, Operand(FIRST_JS_OBJECT_TYPE));
+  __ cmp(scratch, Operand(FIRST_SPEC_OBJECT_TYPE));
   // "tos_" is a register and contains a non-zero value.
   // Hence we implicitly return true if the greater than
   // condition is satisfied.
   __ Ret(gt);
 
   // Check for string
   __ ldr(scratch, FieldMemOperand(tos_, HeapObject::kMapOffset));
   __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));
   __ cmp(scratch, Operand(FIRST_NONSTRING_TYPE));
   // "tos_" is a register and contains a non-zero value.
@@ skipping 2802 matching lines @@
   if (ReceiverMightBeValue()) {
     // Get the receiver from the stack.
     // function, receiver [, arguments]
     Label receiver_is_value, receiver_is_js_object;
     __ ldr(r1, MemOperand(sp, argc_ * kPointerSize));
 
     // Check if receiver is a smi (which is a number value).
     __ JumpIfSmi(r1, &receiver_is_value);
 
     // Check if the receiver is a valid JS object.
-    __ CompareObjectType(r1, r2, r2, FIRST_JS_OBJECT_TYPE);
+    __ CompareObjectType(r1, r2, r2, FIRST_SPEC_OBJECT_TYPE);
     __ b(ge, &receiver_is_js_object);
 
     // Call the runtime to box the value.
     __ bind(&receiver_is_value);
     __ EnterInternalFrame();
     __ push(r1);
     __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
     __ LeaveInternalFrame();
     __ str(r0, MemOperand(sp, argc_ * kPointerSize));
 
@@ skipping 1873 matching lines @@
   __ mov(result, Operand(0));
   __ Ret();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM