Class fields, part 3 (backends)

src/full-codegen/x87/full-codegen-x87.cc

Index: src/full-codegen/x87/full-codegen-x87.cc
diff --git a/src/full-codegen/x87/full-codegen-x87.cc b/src/full-codegen/x87/full-codegen-x87.cc
index 271182690207be2859c5e88bd100ca5182945679..506177cf49f8094309918483466a95c2a440b372 100644
--- a/src/full-codegen/x87/full-codegen-x87.cc
+++ b/src/full-codegen/x87/full-codegen-x87.cc
@@ -1889,6 +1889,19 @@ void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
     ClassLiteral::Property* property = lit->properties()->at(i);
     Expression* value = property->value();
 
+    if (property->kind() == ClassLiteral::Property::FIELD &&
+        !property->is_static()) {
+      // This just does the ToName call on the field name and stores it in a
+      // variable (a proxy for which is the value() of this property)
+      DCHECK(property->value()->IsVariableProxy());
+      Variable* variable = property->value()->AsVariableProxy()->var();
+      VisitForStackValue(property->key());
+      EmitVariableAssignment(variable, Token::INIT,
+                             FeedbackVectorSlot::Invalid());
+      DropOperands(1);
+      continue;
+    }
+
     if (property->is_static()) {
       PushOperand(Operand(esp, kPointerSize));  // constructor
     } else {
@@ -1928,7 +1941,10 @@ void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
         break;
 
       case ClassLiteral::Property::FIELD:
-        UNREACHABLE();
+        DCHECK(property->is_static());
+        PushOperand(Smi::FromInt(DONT_ENUM));
+        PushOperand(Smi::FromInt(property->NeedsSetFunctionName()));
+        CallRuntimeWithOperands(Runtime::kDefineDataPropertyInLiteral);
         break;
     }
   }