[Interpreter] Add support for property load operations.

src/interpreter/bytecode-generator.cc

 // Copyright 2015 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/interpreter/bytecode-generator.h"
 
 #include <stack>
 
 #include "src/compiler.h"
 #include "src/objects.h"
 #include "src/scopes.h"
 #include "src/token.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 BytecodeGenerator::BytecodeGenerator(Isolate* isolate, Zone* zone)
     : builder_(isolate, zone) {
   InitializeAstVisitor(isolate, zone);
 }
 
 
 BytecodeGenerator::~BytecodeGenerator() {}
 
 
 Handle<BytecodeArray> BytecodeGenerator::MakeBytecode(CompilationInfo* info) {
+  set_info(info);
   set_scope(info->scope());
 
   // This a temporary guard (oth).
   DCHECK(scope()->is_function_scope());
 
   builder().set_parameter_count(info->num_parameters_including_this());
   builder().set_locals_count(scope()->num_stack_slots());
 
   // Visit implicit declaration of the function name.
   if (scope()->is_function_scope() && scope()->function() != NULL) {
     VisitVariableDeclaration(scope()->function());
   }
 
   // Visit declarations within the function scope.
   VisitDeclarations(scope()->declarations());
 
   // Visit statements in the function body.
   VisitStatements(info->literal()->body());
 
   set_scope(nullptr);
+  set_info(nullptr);
   return builder_.ToBytecodeArray();
 }
 
 
 void BytecodeGenerator::VisitBlock(Block* node) {
   if (node->scope() == NULL) {
     // Visit statements in the same scope, no declarations.
     VisitStatements(node->statements());
   } else {
     // Visit declarations and statements in a block scope.
@@ skipping 19 matching lines @@
       // Details stored in scope, i.e. variable index.
       break;
     case VariableLocation::CONTEXT:
     case VariableLocation::LOOKUP:
       UNIMPLEMENTED();
       break;
   }
 }
 
 
-void BytecodeGenerator::VisitFunctionDeclaration(FunctionDeclaration* node) {
+void BytecodeGenerator::VisitFunctionDeclaration(FunctionDeclaration* decl) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitImportDeclaration(ImportDeclaration* node) {
+void BytecodeGenerator::VisitImportDeclaration(ImportDeclaration* decl) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitExportDeclaration(ExportDeclaration* node) {
+void BytecodeGenerator::VisitExportDeclaration(ExportDeclaration* decl) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitExpressionStatement(ExpressionStatement* stmt) {
   Visit(stmt->expression());
 }
 
 
-void BytecodeGenerator::VisitEmptyStatement(EmptyStatement* node) {
+void BytecodeGenerator::VisitEmptyStatement(EmptyStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitIfStatement(IfStatement* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitIfStatement(IfStatement* stmt) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitContinueStatement(ContinueStatement* node) {
+void BytecodeGenerator::VisitContinueStatement(ContinueStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitBreakStatement(BreakStatement* node) {
+void BytecodeGenerator::VisitBreakStatement(BreakStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitReturnStatement(ReturnStatement* node) {
-  Visit(node->expression());
+void BytecodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
+  Visit(stmt->expression());
   builder().Return();
 }
 
 
-void BytecodeGenerator::VisitWithStatement(WithStatement* node) {
+void BytecodeGenerator::VisitWithStatement(WithStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitSwitchStatement(SwitchStatement* node) {
+void BytecodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitCaseClause(CaseClause* clause) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitDoWhileStatement(DoWhileStatement* node) {
+void BytecodeGenerator::VisitDoWhileStatement(DoWhileStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitWhileStatement(WhileStatement* node) {
+void BytecodeGenerator::VisitWhileStatement(WhileStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitForStatement(ForStatement* node) {
+void BytecodeGenerator::VisitForStatement(ForStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitForInStatement(ForInStatement* node) {
+void BytecodeGenerator::VisitForInStatement(ForInStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitForOfStatement(ForOfStatement* node) {
+void BytecodeGenerator::VisitForOfStatement(ForOfStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitTryCatchStatement(TryCatchStatement* node) {
+void BytecodeGenerator::VisitTryCatchStatement(TryCatchStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* node) {
+void BytecodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitDebuggerStatement(DebuggerStatement* node) {
+void BytecodeGenerator::VisitDebuggerStatement(DebuggerStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitFunctionLiteral(FunctionLiteral* node) {
+void BytecodeGenerator::VisitFunctionLiteral(FunctionLiteral* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitClassLiteral(ClassLiteral* node) {
+void BytecodeGenerator::VisitClassLiteral(ClassLiteral* expr) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitNativeFunctionLiteral(
-    NativeFunctionLiteral* node) {
+    NativeFunctionLiteral* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitConditional(Conditional* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitConditional(Conditional* expr) { UNIMPLEMENTED(); }
 
 
 void BytecodeGenerator::VisitLiteral(Literal* expr) {
   Handle<Object> value = expr->value();
   if (value->IsSmi()) {
     builder().LoadLiteral(Smi::cast(*value));
   } else if (value->IsUndefined()) {
     builder().LoadUndefined();
   } else if (value->IsTrue()) {
     builder().LoadTrue();
   } else if (value->IsFalse()) {
     builder().LoadFalse();
   } else if (value->IsNull()) {
     builder().LoadNull();
   } else if (value->IsTheHole()) {
     builder().LoadTheHole();
   } else {
     builder().LoadLiteral(value);
   }
 }
 
 
-void BytecodeGenerator::VisitRegExpLiteral(RegExpLiteral* node) {
+void BytecodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitObjectLiteral(ObjectLiteral* node) {
+void BytecodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitArrayLiteral(ArrayLiteral* node) {
+void BytecodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitVariableProxy(VariableProxy* proxy) {
   Variable* variable = proxy->var();
   switch (variable->location()) {
     case VariableLocation::LOCAL: {
       Register source(variable->index());
       builder().LoadAccumulatorWithRegister(source);
@@ skipping 35 matching lines @@
     }
     case NAMED_PROPERTY:
     case KEYED_PROPERTY:
     case NAMED_SUPER_PROPERTY:
     case KEYED_SUPER_PROPERTY:
       UNIMPLEMENTED();
   }
 }
 
 
-void BytecodeGenerator::VisitYield(Yield* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitYield(Yield* expr) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitThrow(Throw* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitThrow(Throw* expr) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitProperty(Property* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitProperty(Property* expr) {
+  LhsKind property_kind = Property::GetAssignType(expr);
+  FeedbackVectorICSlot slot = expr->PropertyFeedbackSlot();
+  switch (property_kind) {
+    case VARIABLE:
+      UNREACHABLE();
+      break;
+    case NAMED_PROPERTY: {
+      TemporaryRegisterScope temporary_register_scope(&builder_);
+      Register obj = temporary_register_scope.NewRegister();
+      Visit(expr->obj());
+      builder().StoreAccumulatorInRegister(obj);
+      builder().LoadLiteral(expr->key()->AsLiteral()->AsPropertyName());
+      builder().LoadNamedProperty(obj, feedback_index(slot), language_mode());
+      break;
+    }
+    case KEYED_PROPERTY: {
+      TemporaryRegisterScope temporary_register_scope(&builder_);
+      Register obj = temporary_register_scope.NewRegister();
+      Visit(expr->obj());
+      builder().StoreAccumulatorInRegister(obj);
+      Visit(expr->key());
+      builder().LoadKeyedProperty(obj, feedback_index(slot), language_mode());
+      break;
+    }
+    case NAMED_SUPER_PROPERTY:
+    case KEYED_SUPER_PROPERTY:
+      UNIMPLEMENTED();
+  }
+}
 
 
-void BytecodeGenerator::VisitCall(Call* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitCall(Call* expr) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitCallNew(CallNew* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitCallNew(CallNew* expr) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitCallRuntime(CallRuntime* node) { UNIMPLEMENTED(); }
+void BytecodeGenerator::VisitCallRuntime(CallRuntime* expr) { UNIMPLEMENTED(); }
 
 
-void BytecodeGenerator::VisitUnaryOperation(UnaryOperation* node) {
+void BytecodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitCountOperation(CountOperation* node) {
+void BytecodeGenerator::VisitCountOperation(CountOperation* expr) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitBinaryOperation(BinaryOperation* binop) {
   switch (binop->op()) {
     case Token::COMMA:
     case Token::OR:
     case Token::AND:
       UNIMPLEMENTED();
       break;
     default:
       VisitArithmeticExpression(binop);
       break;
   }
 }
 
 
-void BytecodeGenerator::VisitCompareOperation(CompareOperation* node) {
+void BytecodeGenerator::VisitCompareOperation(CompareOperation* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitSpread(Spread* node) { UNREACHABLE(); }
+void BytecodeGenerator::VisitSpread(Spread* expr) { UNREACHABLE(); }
 
 
-void BytecodeGenerator::VisitEmptyParentheses(EmptyParentheses* node) {
+void BytecodeGenerator::VisitEmptyParentheses(EmptyParentheses* expr) {
   UNREACHABLE();
 }
 
 
-void BytecodeGenerator::VisitThisFunction(ThisFunction* node) {
+void BytecodeGenerator::VisitThisFunction(ThisFunction* expr) {
   UNIMPLEMENTED();
 }
 
 
-void BytecodeGenerator::VisitSuperCallReference(SuperCallReference* node) {
+void BytecodeGenerator::VisitSuperCallReference(SuperCallReference* expr) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitSuperPropertyReference(
-    SuperPropertyReference* node) {
+    SuperPropertyReference* expr) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitArithmeticExpression(BinaryOperation* binop) {
   Token::Value op = binop->op();
   Expression* left = binop->left();
   Expression* right = binop->right();
 
   TemporaryRegisterScope temporary_register_scope(&builder_);
   Register temporary = temporary_register_scope.NewRegister();
 
   Visit(left);
   builder().StoreAccumulatorInRegister(temporary);
   Visit(right);
   builder().BinaryOperation(op, temporary);
 }
 
+
+LanguageMode BytecodeGenerator::language_mode() const {
+  return info()->language_mode();
+}
+
+
+int BytecodeGenerator::feedback_index(FeedbackVectorICSlot slot) const {
+  return info()->feedback_vector()->GetIndex(slot);
+}
+
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8