Turn on DCHECKs and other debugging code if dcheck_always_on is 1

src/objects-printer.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"
 
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/heap/objects-visiting.h"
 #include "src/jsregexp.h"
@@ skipping 328 matching lines @@
         os << " " << (i - 2) << ":" << Brief(p->get(i));
       }
       os << "\n   context: " << Brief(p->get(0))
          << "\n   arguments: " << Brief(p->get(1)) << "\n";
       break;
     }
   }
 }
 
 
-void JSObject::PrintTransitions(std::ostream& os) {  // NOLINT
-  if (!map()->HasTransitionArray()) return;
-  map()->transitions()->PrintTransitions(os, false);
-}
-
-
 void JSObject::JSObjectPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "JSObject");
   // Don't call GetElementsKind, its validation code can cause the printer to
   // fail when debugging.
   PrototypeIterator iter(GetIsolate(), this);
   os << " - map = " << reinterpret_cast<void*>(map()) << " ["
      << ElementsKindToString(this->map()->elements_kind())
      << "]\n - prototype = " << reinterpret_cast<void*>(iter.GetCurrent())
      << "\n {\n";
   PrintProperties(os);
@@ skipping 220 matching lines @@
   if (IsString()) {
     String::cast(this)->StringPrint(os);
   } else if (IsSymbol()) {
     Symbol::cast(this)->name()->Print(os);
   } else {
     os << Brief(this);
   }
 }
 
 
-// This method is only meant to be called from gdb for debugging purposes.
-// Since the string can also be in two-byte encoding, non-Latin1 characters
-// will be ignored in the output.
-char* String::ToAsciiArray() {
-  // Static so that subsequent calls frees previously allocated space.
-  // This also means that previous results will be overwritten.
-  static char* buffer = NULL;
-  if (buffer != NULL) delete[] buffer;
-  buffer = new char[length()+1];
-  WriteToFlat(this, reinterpret_cast<uint8_t*>(buffer), 0, length());
-  buffer[length()] = 0;
-  return buffer;
-}
-
-
 static const char* const weekdays[] = {
   "???", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
 };
 
 
 void JSDate::JSDatePrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "JSDate");
   os << " - map = " << reinterpret_cast<void*>(map()) << "\n";
   os << " - value = ";
   value()->Print(os);
@@ skipping 440 matching lines @@
 void BreakPointInfo::BreakPointInfoPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "BreakPointInfo");
   os << "\n - code_position: " << code_position()->value();
   os << "\n - source_position: " << source_position()->value();
   os << "\n - statement_position: " << statement_position()->value();
   os << "\n - break_point_objects: " << Brief(break_point_objects());
   os << "\n";
 }
 
 
-void DescriptorArray::Print() {
-  OFStream os(stdout);
-  this->PrintDescriptors(os);
-  os << std::flush;
-}
-
-
-void DescriptorArray::PrintDescriptors(std::ostream& os) {  // NOLINT
-  HandleScope scope(GetIsolate());
-  os << "Descriptor array " << number_of_descriptors() << "\n";
-  for (int i = 0; i < number_of_descriptors(); i++) {
-    Descriptor desc;
-    Get(i, &desc);
-    os << " " << i << ": " << desc << "\n";
-  }
-  os << "\n";
-}
-
-
 static void PrintBitMask(std::ostream& os, uint32_t value) {  // NOLINT
   for (int i = 0; i < 32; i++) {
     if ((i & 7) == 0) os << " ";
     os << (((value & 1) == 0) ? "_" : "x");
     value >>= 1;
   }
 }
 
 
 void LayoutDescriptor::Print() {
@@ skipping 17 matching lines @@
     int len = length();
     for (int i = 0; i < len; i++) {
       if (i > 0) os << " |";
       PrintBitMask(os, get_scalar(i));
     }
   }
   os << "\n";
 }
 
 
+#endif  // OBJECT_PRINT
+
+
+#if TRACE_MAPS
+
+
+void Name::NameShortPrint() {
+  if (this->IsString()) {
+    PrintF("%s", String::cast(this)->ToCString().get());
+  } else {
+    DCHECK(this->IsSymbol());
+    Symbol* s = Symbol::cast(this);
+    if (s->name()->IsUndefined()) {
+      PrintF("#<%s>", s->PrivateSymbolToName());
+    } else {
+      PrintF("<%s>", String::cast(s->name())->ToCString().get());
+    }
+  }
+}
+
+
+int Name::NameShortPrint(Vector<char> str) {
+  if (this->IsString()) {
+    return SNPrintF(str, "%s", String::cast(this)->ToCString().get());
+  } else {
+    DCHECK(this->IsSymbol());
+    Symbol* s = Symbol::cast(this);
+    if (s->name()->IsUndefined()) {
+      return SNPrintF(str, "#<%s>", s->PrivateSymbolToName());
+    } else {
+      return SNPrintF(str, "<%s>", String::cast(s->name())->ToCString().get());
+    }
+  }
+}
+
+
+#endif  // TRACE_MAPS
+
+
+#ifdef DEBUG
+// This method is only meant to be called from gdb for debugging purposes.
+// Since the string can also be in two-byte encoding, non-Latin1 characters
+// will be ignored in the output.
+char* String::ToAsciiArray() {
+  // Static so that subsequent calls frees previously allocated space.
+  // This also means that previous results will be overwritten.
+  static char* buffer = NULL;
+  if (buffer != NULL) delete[] buffer;
+  buffer = new char[length() + 1];
+  WriteToFlat(this, reinterpret_cast<uint8_t*>(buffer), 0, length());
+  buffer[length()] = 0;
+  return buffer;
+}
+
+
+void DescriptorArray::Print() {
+  OFStream os(stdout);
+  this->PrintDescriptors(os);
+  os << std::flush;
+}
+
+
+void DescriptorArray::PrintDescriptors(std::ostream& os) {  // NOLINT
+  HandleScope scope(GetIsolate());
+  os << "Descriptor array " << number_of_descriptors() << "\n";
+  for (int i = 0; i < number_of_descriptors(); i++) {
+    Descriptor desc;
+    Get(i, &desc);
+    os << " " << i << ": " << desc << "\n";
+  }
+  os << "\n";
+}
+
+
 void TransitionArray::Print() {
   OFStream os(stdout);
   this->PrintTransitions(os);
   os << std::flush;
 }
 
 
 void TransitionArray::PrintTransitions(std::ostream& os,
                                        bool print_header) {  // NOLINT
   if (print_header) {
     os << "Transition array " << number_of_transitions() << "\n";
   }
   for (int i = 0; i < number_of_transitions(); i++) {
     Name* key = GetKey(i);
     os << "   ";
+#ifdef OBJECT_PRINT
     key->NamePrint(os);
+#else
+    key->ShortPrint(os);
+#endif
     os << ": ";
     if (key == GetHeap()->frozen_symbol()) {
       os << " (transition to frozen)";
     } else if (key == GetHeap()->elements_transition_symbol()) {
       os << " (transition to "
          << ElementsKindToString(GetTarget(i)->elements_kind()) << ")";
     } else if (key == GetHeap()->observed_symbol()) {
       os << " (transition to Object.observe)";
     } else {
       PropertyDetails details = GetTargetDetails(i);
       switch (details.type()) {
         case FIELD: {
           os << " (transition to field)";
           break;
         }
         case CONSTANT:
           os << " (transition to constant " << Brief(GetTargetValue(i)) << ")";
           break;
         case CALLBACKS:
           os << " (transition to callback " << Brief(GetTargetValue(i)) << ")";
           break;
       }
       os << ", attrs: " << details.attributes();
     }
     os << " -> " << Brief(GetTarget(i)) << "\n";
   }
 }
 
 
-#endif  // OBJECT_PRINT
-
-
-#if TRACE_MAPS
-
-
-void Name::NameShortPrint() {
-  if (this->IsString()) {
-    PrintF("%s", String::cast(this)->ToCString().get());
-  } else {
-    DCHECK(this->IsSymbol());
-    Symbol* s = Symbol::cast(this);
-    if (s->name()->IsUndefined()) {
-      PrintF("#<%s>", s->PrivateSymbolToName());
-    } else {
-      PrintF("<%s>", String::cast(s->name())->ToCString().get());
-    }
-  }
+void JSObject::PrintTransitions(std::ostream& os) {  // NOLINT
+  if (!map()->HasTransitionArray()) return;
+  map()->transitions()->PrintTransitions(os, false);
 }
-
-
-int Name::NameShortPrint(Vector<char> str) {
-  if (this->IsString()) {
-    return SNPrintF(str, "%s", String::cast(this)->ToCString().get());
-  } else {
-    DCHECK(this->IsSymbol());
-    Symbol* s = Symbol::cast(this);
-    if (s->name()->IsUndefined()) {
-      return SNPrintF(str, "#<%s>", s->PrivateSymbolToName());
-    } else {
-      return SNPrintF(str, "<%s>", String::cast(s->name())->ToCString().get());
-    }
-  }
-}
-
-
-#endif  // TRACE_MAPS
+#endif  // DEBUG
 } }  // namespace v8::internal