MIPS: Classes: Add basic support for properties

src/mips/full-codegen-mips.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/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
 // Note on Mips implementation:
 //
@@ skipping 2464 matching lines @@
       break;
     default:
       UNREACHABLE();
   }
 
   __ bind(&done);
   context()->Plug(v0);
 }
 
 
+void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
+  // Constructor is in v0.
+  DCHECK(lit != NULL);
+  __ push(v0);
+
+  // No access check is needed here since the constructor is created by the
+  // class literal.
+  Register scratch = a1;
+  __ lw(scratch,
+        FieldMemOperand(v0, JSFunction::kPrototypeOrInitialMapOffset));
+  __ push(scratch);
+
+  for (int i = 0; i < lit->properties()->length(); i++) {
+    ObjectLiteral::Property* property = lit->properties()->at(i);
+    Literal* key = property->key()->AsLiteral();
+    Expression* value = property->value();
+    DCHECK(key != NULL);
+
+    if (property->is_static()) {
+      __ lw(scratch, MemOperand(sp, kPointerSize));  // constructor
+    } else {
+      __ lw(scratch, MemOperand(sp, 0));  // prototype
+    }
+    __ push(scratch);
+    VisitForStackValue(key);
+
+    switch (property->kind()) {
+      case ObjectLiteral::Property::CONSTANT:
+      case ObjectLiteral::Property::MATERIALIZED_LITERAL:
+      case ObjectLiteral::Property::COMPUTED:
+      case ObjectLiteral::Property::PROTOTYPE:
+        VisitForStackValue(value);
+        __ li(scratch, Operand(Smi::FromInt(NONE)));
+        __ push(scratch);
+        __ CallRuntime(Runtime::kDefineDataPropertyUnchecked, 4);
+        break;
+
+      case ObjectLiteral::Property::GETTER:
+        VisitForStackValue(value);
+        __ LoadRoot(scratch, Heap::kNullValueRootIndex);
+        __ push(scratch);
+        __ li(scratch, Operand(Smi::FromInt(NONE)));
+        __ push(scratch);
+        __ CallRuntime(Runtime::kDefineAccessorPropertyUnchecked, 5);
+        break;
+
+      case ObjectLiteral::Property::SETTER:
+        __ LoadRoot(scratch, Heap::kNullValueRootIndex);
+        __ push(scratch);
+        VisitForStackValue(value);
+        __ li(scratch, Operand(Smi::FromInt(NONE)));
+        __ push(scratch);
+        __ CallRuntime(Runtime::kDefineAccessorPropertyUnchecked, 5);
+        break;
+
+      default:
+        UNREACHABLE();
+    }
+  }
+
+  // prototype
+  __ CallRuntime(Runtime::kToFastProperties, 1);
+
+  // constructor
+  __ CallRuntime(Runtime::kToFastProperties, 1);
+}
+
+
 void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr,
                                      Token::Value op,
                                      OverwriteMode mode) {
   __ mov(a0, result_register());
   __ pop(a1);
   Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), op, mode).code();
   JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
   CallIC(code, expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
   context()->Plug(v0);
@@ skipping 2721 matching lines @@
       Assembler::target_address_at(pc_immediate_load_address)) ==
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS