[Interpreter] Pass CompileInfo to BytecodeGenerator's constructor.

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 "src/ast/scopes.h"
 #include "src/compiler.h"
 #include "src/interpreter/bytecode-register-allocator.h"
 #include "src/interpreter/control-flow-builders.h"
@@ skipping 536 matching lines @@
     if (generator()->HasStackOverflow() && !result_identified()) {
       SetResultInAccumulator();
     }
     return result_register_;
   }
 
  private:
   Register result_register_;
 };
 
-BytecodeGenerator::BytecodeGenerator(Isolate* isolate, Zone* zone)
-    : isolate_(isolate),
-      zone_(zone),
-      builder_(nullptr),
-      info_(nullptr),
-      scope_(nullptr),
-      globals_(0, zone),
+BytecodeGenerator::BytecodeGenerator(CompilationInfo* info)
+    : isolate_(info->isolate()),
+      zone_(info->zone()),
+      builder_(new (zone()) BytecodeArrayBuilder(
+          info->isolate(), info->zone(), info->num_parameters_including_this(),
+          info->scope()->MaxNestedContextChainLength(),
+          info->scope()->num_stack_slots(), info->literal())),
+      info_(info),
+      scope_(info->scope()),
+      globals_(0, info->zone()),
       execution_control_(nullptr),
       execution_context_(nullptr),
       execution_result_(nullptr),
       register_allocator_(nullptr),
-      generator_resume_points_(0, zone),
+      generator_resume_points_(info->literal()->yield_count(), info->zone()),
       try_catch_nesting_level_(0),
       try_finally_nesting_level_(0),
       generator_yields_seen_(0) {
-  InitializeAstVisitor(isolate);
+  InitializeAstVisitor(isolate());
 }
 
-Handle<BytecodeArray> BytecodeGenerator::MakeBytecode(CompilationInfo* info) {
-  set_info(info);
-  set_scope(info->scope());
-
-  // Initialize bytecode array builder.
-  set_builder(new (zone()) BytecodeArrayBuilder(
-      isolate(), zone(), info->num_parameters_including_this(),
-      scope()->MaxNestedContextChainLength(), scope()->num_stack_slots(),
-      info->literal()));
-
+Handle<BytecodeArray> BytecodeGenerator::MakeBytecode() {
   // Initialize the incoming context.
   ContextScope incoming_context(this, scope(), false);
 
   // Initialize control scope.
   ControlScopeForTopLevel control(this);
 
-  if (IsGeneratorFunction(info->literal()->kind())) {
+  if (IsGeneratorFunction(info()->literal()->kind())) {
     VisitGeneratorPrologue();
   }
 
   // Build function context only if there are context allocated variables.
   if (scope()->NeedsContext()) {
     // Push a new inner context scope for the function.
     VisitNewLocalFunctionContext();
     ContextScope local_function_context(this, scope(), false);
     VisitBuildLocalActivationContext();
     MakeBytecodeBody();
   } else {
     MakeBytecodeBody();
   }
 
   builder()->EnsureReturn();
-  set_scope(nullptr);
-  set_info(nullptr);
   return builder()->ToBytecodeArray();
 }
 
 
 void BytecodeGenerator::MakeBytecodeBody() {
   // Build the arguments object if it is used.
   VisitArgumentsObject(scope()->arguments());
 
   // Build rest arguments array if it is used.
   int rest_index;
@@ skipping 15 matching lines @@
   VisitDeclarations(scope()->declarations());
 
   // Perform a stack-check before the body.
   builder()->StackCheck();
 
   // Visit statements in the function body.
   VisitStatements(info()->literal()->body());
 }
 
 void BytecodeGenerator::VisitGeneratorPrologue() {
-  generator_resume_points_.clear();
-  generator_resume_points_.resize(info()->literal()->yield_count());
-
   BytecodeLabel regular_call;
   builder()
       ->LoadAccumulatorWithRegister(Register::new_target())
       .JumpIfUndefined(&regular_call);
 
   // This is a resume call. Restore registers and perform state dispatch.
   // (The current context has already been restored by the trampoline.)
   {
     RegisterAllocationScope register_scope(this);
     Register state = register_allocator()->NewRegister();
@@ skipping 2617 matching lines @@
 }
 
 
 int BytecodeGenerator::feedback_index(FeedbackVectorSlot slot) const {
   return info()->shared_info()->feedback_vector()->GetIndex(slot);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8