Debugger: prepare code for debugging on a per-function basis.

src/objects.cc

 // Copyright 2013 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 <iomanip>
 #include <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 9310 matching lines @@
 
 void JSFunction::JSFunctionIterateBody(int object_size, ObjectVisitor* v) {
   // Iterate over all fields in the body but take care in dealing with
   // the code entry.
   IteratePointers(v, kPropertiesOffset, kCodeEntryOffset);
   v->VisitCodeEntry(this->address() + kCodeEntryOffset);
   IteratePointers(v, kCodeEntryOffset + kPointerSize, object_size);
 }
 
 
+bool JSFunction::Inlines(SharedFunctionInfo* candidate) {
+  DisallowHeapAllocation no_gc;
+  if (shared() == candidate) return true;
+  if (code()->kind() != Code::OPTIMIZED_FUNCTION) return false;
+  DeoptimizationInputData* const data =
+      DeoptimizationInputData::cast(code()->deoptimization_data());
+  if (data->length() == 0) return false;
+  FixedArray* const literals = data->LiteralArray();
+  int const inlined_count = data->InlinedFunctionCount()->value();
+  for (int i = 0; i < inlined_count; ++i) {
+    if (SharedFunctionInfo::cast(literals->get(i)) == candidate) {
+      return true;
+    }
+  }
+  return false;
+}
+
+
 void JSFunction::MarkForOptimization() {
   Isolate* isolate = GetIsolate();
+  // Do not optimize if function contains break points.
+  if (shared()->HasDebugInfo()) return;
   DCHECK(!IsOptimized());
   DCHECK(shared()->allows_lazy_compilation() ||
          !shared()->optimization_disabled());
+  DCHECK(!shared()->HasDebugInfo());
   set_code_no_write_barrier(
       isolate->builtins()->builtin(Builtins::kCompileOptimized));
   // No write barrier required, since the builtin is part of the root set.
 }
 
 
 void JSFunction::AttemptConcurrentOptimization() {
   Isolate* isolate = GetIsolate();
   if (!isolate->concurrent_recompilation_enabled() ||
       isolate->bootstrapper()->IsActive()) {
@@ skipping 6538 matching lines @@
                                             Handle<Object> new_value) {
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 }  // namespace internal
 }  // namespace v8