Use a custom Struct for stack trace storage

src/objects.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/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <memory>
 #include <sstream>
@@ skipping 13124 matching lines @@
   return MaybeHandle<SharedFunctionInfo>();
 }
 
 
 Script::Iterator::Iterator(Isolate* isolate)
     : iterator_(isolate->heap()->script_list()) {}
 
 
 Script* Script::Iterator::Next() { return iterator_.Next<Script>(); }
 
+namespace {
+
+int JSSTGetPosition(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  return frame->abstract_code()->SourcePosition(frame->offset());
+}
+
+Handle<Object> JSSTGetFileName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Object* script = frame->function()->shared()->script();
+  if (!script->IsScript()) return isolate->factory()->null_value();
+  return Handle<Object>(Script::cast(script)->name(), isolate);
+}
+
+Handle<Object> JSSTGetFunctionName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+
+  Handle<JSFunction> function = handle(frame->function());
+  Handle<String> result = JSFunction::GetName(function);
+  if (result->length() != 0) return result;
+
+  Handle<Object> script(function->shared()->script(), isolate);
+  if (script->IsScript() &&
+      Handle<Script>::cast(script)->compilation_type() ==
+          Script::COMPILATION_TYPE_EVAL) {
+    return isolate->factory()->eval_string();
+  }
+
+  return isolate->factory()->null_value();
+}
+
+Handle<Object> JSSTGetScriptNameOrSourceUrl(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+
+  Object* script_obj = frame->function()->shared()->script();
+  if (!script_obj->IsScript()) return isolate->factory()->null_value();
+
+  Handle<Script> script(Script::cast(script_obj), isolate);
+  Object* source_url = script->source_url();
+  if (source_url->IsString()) return Handle<Object>(source_url, isolate);
+
+  return Handle<Object>(script->name(), isolate);
+}
+
+bool CheckMethodName(Isolate* isolate, Handle<JSObject> obj, Handle<Name> name,
+                     Handle<JSFunction> fun,
+                     LookupIterator::Configuration config) {
+  LookupIterator iter =
+      LookupIterator::PropertyOrElement(isolate, obj, name, config);
+  if (iter.state() == LookupIterator::DATA) {
+    return iter.GetDataValue().is_identical_to(fun);
+  } else if (iter.state() == LookupIterator::ACCESSOR) {
+    Handle<Object> accessors = iter.GetAccessors();
+    if (accessors->IsAccessorPair()) {
+      Handle<AccessorPair> pair = Handle<AccessorPair>::cast(accessors);
+      return pair->getter() == *fun || pair->setter() == *fun;
+    }
+  }
+  return false;
+}
+
+Handle<Object> JSSTGetMethodName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Handle<JSFunction> fun = handle(frame->function());
+  Handle<Object> recv_obj = handle(frame->receiver(), isolate);
+
+  if (recv_obj->IsNull(isolate) || recv_obj->IsUndefined(isolate)) {
+    return isolate->factory()->null_value();
+  }
+
+  Handle<JSReceiver> recv =
+      Object::ToObject(isolate, recv_obj).ToHandleChecked();
+  if (!recv->IsJSObject()) {
+    return isolate->factory()->null_value();
+  }
+
+  Handle<JSObject> obj = Handle<JSObject>::cast(recv);
+  Handle<Object> function_name(fun->shared()->name(), isolate);
+  if (function_name->IsString()) {
+    Handle<String> name = Handle<String>::cast(function_name);
+    // ES2015 gives getters and setters name prefixes which must
+    // be stripped to find the property name.
+    if (name->IsUtf8EqualTo(CStrVector("get "), true) ||
+        name->IsUtf8EqualTo(CStrVector("set "), true)) {
+      name = isolate->factory()->NewProperSubString(name, 4, name->length());
+    }
+    if (CheckMethodName(isolate, obj, name, fun,
+                        LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR)) {
+      return name;
+    }
+  }
+
+  HandleScope outer_scope(isolate);
+  Handle<Object> result;
+  for (PrototypeIterator iter(isolate, obj, kStartAtReceiver); !iter.IsAtEnd();
+       iter.Advance()) {
+    Handle<Object> current = PrototypeIterator::GetCurrent(iter);
+    if (!current->IsJSObject()) break;
+    Handle<JSObject> current_obj = Handle<JSObject>::cast(current);
+    if (current_obj->IsAccessCheckNeeded()) break;
+    Handle<FixedArray> keys =
+        KeyAccumulator::GetOwnEnumPropertyKeys(isolate, current_obj);
+    for (int i = 0; i < keys->length(); i++) {
+      HandleScope inner_scope(isolate);
+      if (!keys->get(i)->IsName()) continue;
+      Handle<Name> name_key(Name::cast(keys->get(i)), isolate);
+      if (!CheckMethodName(isolate, current_obj, name_key, fun,
+                           LookupIterator::OWN_SKIP_INTERCEPTOR)) {
+        continue;
+      }
+      // Return null in case of duplicates to avoid confusion.
+      if (!result.is_null()) return isolate->factory()->null_value();
+      result = inner_scope.CloseAndEscape(name_key);
+    }
+  }
+
+  if (!result.is_null()) return outer_scope.CloseAndEscape(result);
+  return isolate->factory()->null_value();
+}
+
+Handle<Object> JSSTGetTypeName(Handle<StackTraceFrame> frame) {
+  // TODO(jgruber): Check for strict/constructor here as in
+  // CallSitePrototypeGetThis.
+
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Handle<Object> recv = handle(frame->receiver(), isolate);
+
+  if (recv->IsNull(isolate) || recv->IsUndefined(isolate))
+    return isolate->factory()->null_value();
+
+  if (recv->IsJSProxy()) return isolate->factory()->Proxy_string();
+
+  Handle<JSReceiver> receiver_object =
+      Object::ToObject(isolate, recv).ToHandleChecked();
+  return JSReceiver::GetConstructorName(receiver_object);
+}
+
+Object* EvalFromFunctionName(Isolate* isolate, Handle<Script> script) {
+  if (script->eval_from_shared()->IsUndefined(isolate))
+    return *isolate->factory()->undefined_value();
+
+  Handle<SharedFunctionInfo> shared(
+      SharedFunctionInfo::cast(script->eval_from_shared()));
+  // Find the name of the function calling eval.
+  if (shared->name()->BooleanValue()) {
+    return shared->name();
+  }
+
+  return shared->inferred_name();
+}
+
+Object* EvalFromScript(Isolate* isolate, Handle<Script> script) {
+  if (script->eval_from_shared()->IsUndefined(isolate))
+    return *isolate->factory()->undefined_value();
+
+  Handle<SharedFunctionInfo> eval_from_shared(
+      SharedFunctionInfo::cast(script->eval_from_shared()));
+  return eval_from_shared->script()->IsScript()
+             ? eval_from_shared->script()
+             : *isolate->factory()->undefined_value();
+}
+
+MaybeHandle<String> FormatEvalOrigin(Isolate* isolate, Handle<Script> script) {
+  Handle<Object> sourceURL = Script::GetNameOrSourceURL(script);
+  if (!sourceURL->IsUndefined(isolate)) {
+    DCHECK(sourceURL->IsString());
+    return Handle<String>::cast(sourceURL);
+  }
+
+  IncrementalStringBuilder builder(isolate);
+  builder.AppendCString("eval at ");
+
+  Handle<Object> eval_from_function_name =
+      handle(EvalFromFunctionName(isolate, script), isolate);
+  if (eval_from_function_name->BooleanValue()) {
+    Handle<String> str;
+    ASSIGN_RETURN_ON_EXCEPTION(
+        isolate, str, Object::ToString(isolate, eval_from_function_name),
+        String);
+    builder.AppendString(str);
+  } else {
+    builder.AppendCString("<anonymous>");
+  }
+
+  Handle<Object> eval_from_script_obj =
+      handle(EvalFromScript(isolate, script), isolate);
+  if (eval_from_script_obj->IsScript()) {
+    Handle<Script> eval_from_script =
+        Handle<Script>::cast(eval_from_script_obj);
+    builder.AppendCString(" (");
+    if (eval_from_script->compilation_type() == Script::COMPILATION_TYPE_EVAL) {
+      // Eval script originated from another eval.
+      Handle<String> str;
+      ASSIGN_RETURN_ON_EXCEPTION(
+          isolate, str, FormatEvalOrigin(isolate, eval_from_script), String);
+      builder.AppendString(str);
+    } else {
+      DCHECK(eval_from_script->compilation_type() !=
+             Script::COMPILATION_TYPE_EVAL);
+      // eval script originated from "real" source.
+      Handle<Object> name_obj = handle(eval_from_script->name(), isolate);
+      if (eval_from_script->name()->IsString()) {
+        builder.AppendString(Handle<String>::cast(name_obj));
+
+        Script::PositionInfo info;
+        if (eval_from_script->GetPositionInfo(script->GetEvalPosition(), &info,
+                                              Script::NO_OFFSET)) {
+          builder.AppendCString(":");
+
+          Handle<String> str = isolate->factory()->NumberToString(
+              handle(Smi::FromInt(info.line + 1), isolate));
+          builder.AppendString(str);
+
+          builder.AppendCString(":");
+
+          str = isolate->factory()->NumberToString(
+              handle(Smi::FromInt(info.column + 1), isolate));
+          builder.AppendString(str);
+        }
+      } else {
+        DCHECK(!eval_from_script->name()->IsString());
+        builder.AppendCString("unknown source");
+      }
+    }
+    builder.AppendCString(")");
+  }
+
+  Handle<String> result;
+  ASSIGN_RETURN_ON_EXCEPTION(isolate, result, builder.Finish(), String);
+  return result;
+}
+
+Handle<Object> JSSTGetEvalOrigin(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+
+  Handle<Object> script =
+      handle(frame->function()->shared()->script(), isolate);
+  if (!script->IsScript()) return isolate->factory()->undefined_value();
+
+  return FormatEvalOrigin(isolate, Handle<Script>::cast(script))
+      .ToHandleChecked();
+}
+
+// Return 1-based line number, including line offset.
+int JSSTGetLineNumber(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  const int pos = frame->GetPosition();
+  if (pos >= 0) {
+    Handle<Object> script_obj(frame->function()->shared()->script(), isolate);
+    if (script_obj->IsScript()) {
+      Handle<Script> script = Handle<Script>::cast(script_obj);
+      return Script::GetLineNumber(script, pos) + 1;
+    }
+  }
+  return -1;
+}
+
+// Return 1-based column number, including column offset if first line.
+int JSSTGetColumnNumber(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  const int pos = frame->GetPosition();
+  if (pos >= 0) {
+    Handle<Object> script_obj(frame->function()->shared()->script(), isolate);
+    if (script_obj->IsScript()) {
+      Handle<Script> script = Handle<Script>::cast(script_obj);
+      return Script::GetColumnNumber(script, pos) + 1;
+    }
+  }
+  return -1;
+}
+
+bool JSSTIsNative(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Handle<Object> script(frame->function()->shared()->script(), isolate);
+  return script->IsScript() &&
+         Handle<Script>::cast(script)->type() == Script::TYPE_NATIVE;
+}
+
+bool JSSTIsToplevel(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Object* recv = frame->receiver();
+  return recv->IsJSGlobalProxy() || recv->IsNull(isolate) ||
+         recv->IsUndefined(isolate);
+}
+
+bool JSSTIsEval(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Handle<Object> script(frame->function()->shared()->script(), isolate);
+  return script->IsScript() &&
+         Handle<Script>::cast(script)->compilation_type() ==
+             Script::COMPILATION_TYPE_EVAL;
+}
+
+bool JSSTIsConstructor(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  Object* recv = frame->receiver();
+
+  if (frame->ForceConstructor()) return true;
+  if (!recv->IsJSObject()) return false;
+  Handle<Object> constructor =
+      JSReceiver::GetDataProperty(Handle<JSObject>::cast(handle(recv, isolate)),
+                                  isolate->factory()->constructor_string());
+  return constructor.is_identical_to(handle(frame->function()));
+}
+
+bool IsNonEmptyString(Handle<Object> object) {
+  return (object->IsString() && String::cast(*object)->length() > 0);
+}
+
+int StringIndexOf(Isolate* isolate, Handle<String> subject,
+                  Handle<String> pattern) {
+  if (pattern->length() > subject->length()) return -1;
+  return String::IndexOf(isolate, subject, pattern, 0);
+}
+
+// Returns true iff
+// 1. the subject ends with '.' + pattern, or
+// 2. subject == pattern.
+bool StringEndsWithMethodName(Isolate* isolate, Handle<String> subject,
+                              Handle<String> pattern) {
+  if (String::Equals(subject, pattern)) return true;
+
+  FlatStringReader subject_reader(isolate, String::Flatten(subject));
+  FlatStringReader pattern_reader(isolate, String::Flatten(pattern));
+
+  int pattern_index = pattern_reader.length() - 1;
+  int subject_index = subject_reader.length() - 1;
+  for (int i = 0; i <= pattern_reader.length(); i++) {  // Iterate over len + 1.
+    if (subject_index < 0) {
+      return false;
+    }
+
+    const uc32 subject_char = subject_reader.Get(subject_index);
+    if (i == pattern_reader.length()) {
+      if (subject_char != '.') return false;
+    } else if (subject_char != pattern_reader.Get(pattern_index)) {
+      return false;
+    }
+
+    pattern_index--;
+    subject_index--;
+  }
+
+  return true;
+}
+
+void AppendMethodCall(Isolate* isolate, Handle<StackTraceFrame> frame,
+                      IncrementalStringBuilder* builder) {
+  Handle<Object> type_name = frame->GetTypeName();
+  Handle<Object> method_name = frame->GetMethodName();
+  Handle<Object> function_name = frame->GetFunctionName();
+
+  if (IsNonEmptyString(function_name)) {
+    Handle<String> function_string = Handle<String>::cast(function_name);
+    if (IsNonEmptyString(type_name)) {
+      Handle<String> type_string = Handle<String>::cast(type_name);
+      bool starts_with_type_name =
+          (StringIndexOf(isolate, function_string, type_string) == 0);
+      if (!starts_with_type_name) {
+        builder->AppendString(type_string);
+        builder->AppendCharacter('.');
+      }
+    }
+    builder->AppendString(function_string);
+
+    if (IsNonEmptyString(method_name)) {
+      Handle<String> method_string = Handle<String>::cast(method_name);
+      if (!StringEndsWithMethodName(isolate, function_string, method_string)) {
+        builder->AppendCString(" [as ");
+        builder->AppendString(method_string);
+        builder->AppendCharacter(']');
+      }
+    }
+  } else {
+    builder->AppendString(Handle<String>::cast(type_name));
+    builder->AppendCharacter('.');
+    if (IsNonEmptyString(method_name)) {
+      builder->AppendString(Handle<String>::cast(method_name));
+    } else {
+      builder->AppendCString("<anonymous>");
+    }
+  }
+}
+
+void AppendFileLocation(Isolate* isolate, Handle<StackTraceFrame> frame,
+                        IncrementalStringBuilder* builder) {
+  if (frame->IsNative()) {
+    builder->AppendCString("native");
+    return;
+  }
+
+  Handle<Object> file_name = frame->GetScriptNameOrSourceUrl();
+  if (!file_name->IsString() && frame->IsEval()) {
+    Handle<Object> eval_origin = frame->GetEvalOrigin();
+    DCHECK(eval_origin->IsString());
+    builder->AppendString(Handle<String>::cast(eval_origin));
+    builder->AppendCString(", ");  // Expecting source position to follow.
+  }
+
+  if (IsNonEmptyString(file_name)) {
+    builder->AppendString(Handle<String>::cast(file_name));
+  } else {
+    // Source code does not originate from a file and is not native, but we
+    // can still get the source position inside the source string, e.g. in
+    // an eval string.
+    builder->AppendCString("<anonymous>");
+  }
+
+  int line_number = frame->GetLineNumber();
+  if (line_number != -1) {
+    builder->AppendCharacter(':');
+    Handle<String> line_string = isolate->factory()->NumberToString(
+        handle(Smi::FromInt(line_number), isolate), isolate);
+    builder->AppendString(line_string);
+
+    int column_number = frame->GetColumnNumber();
+    if (column_number != -1) {
+      builder->AppendCharacter(':');
+      Handle<String> column_string = isolate->factory()->NumberToString(
+          handle(Smi::FromInt(column_number), isolate), isolate);
+      builder->AppendString(column_string);
+    }
+  }
+}
+
+Handle<String> JSSTToString(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsJavaScriptFrame());
+  Isolate* isolate = frame->GetIsolate();
+  IncrementalStringBuilder builder(isolate);
+
+  Handle<Object> function_name = frame->GetFunctionName();
+
+  const bool is_toplevel = frame->IsToplevel();
+  const bool is_constructor = frame->IsConstructor();
+  const bool is_method_call = !(is_toplevel || is_constructor);
+
+  if (is_method_call) {
+    AppendMethodCall(isolate, frame, &builder);
+  } else if (is_constructor) {
+    builder.AppendCString("new ");
+    if (IsNonEmptyString(function_name)) {
+      builder.AppendString(Handle<String>::cast(function_name));
+    } else {
+      builder.AppendCString("<anonymous>");
+    }
+  } else if (IsNonEmptyString(function_name)) {
+    builder.AppendString(Handle<String>::cast(function_name));
+  } else {
+    AppendFileLocation(isolate, frame, &builder);
+    return builder.Finish().ToHandleChecked();
+  }
+
+  builder.AppendCString(" (");
+  AppendFileLocation(isolate, frame, &builder);
+  builder.AppendCString(")");
+
+  return builder.Finish().ToHandleChecked();
+}
+
+int WasmSTGetPosition(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  const int off = frame->offset();
+  return (off < 0) ? -1 - off : frame->abstract_code()->SourcePosition(off);
+}
+
+Handle<Object> WasmSTGetFileName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  Isolate* isolate = frame->GetIsolate();
+  return isolate->factory()->null_value();
+}
+
+Handle<Object> WasmSTGetFunctionName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+
+  Isolate* isolate = frame->GetIsolate();
+
+  return wasm::GetWasmFunctionNameOrNull(isolate,
+                                         handle(frame->wasm_object(), isolate),
+                                         frame->wasm_function_index());
+}
+
+Handle<Object> WasmSTGetScriptNameOrSourceUrl(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  Isolate* isolate = frame->GetIsolate();
+  return isolate->factory()->null_value();
+}
+
+Handle<Object> WasmSTGetMethodName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  Isolate* isolate = frame->GetIsolate();
+  return isolate->factory()->null_value();
+}
+
+Handle<Object> WasmSTGetTypeName(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+
+  Isolate* isolate = frame->GetIsolate();
+  Handle<Object> recv = handle(frame->wasm_object(), isolate);
+
+  if (recv->IsUndefined(isolate)) return isolate->factory()->null_value();
+
+  DCHECK(wasm::IsWasmObject(*recv));
+  Handle<JSReceiver> receiver_object =
+      Object::ToObject(isolate, recv).ToHandleChecked();
+  return JSReceiver::GetConstructorName(receiver_object);
+}
+
+Handle<Object> WasmSTGetEvalOrigin(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  Isolate* isolate = frame->GetIsolate();
+  return isolate->factory()->null_value();
+}
+
+int WasmSTGetLineNumber(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  return frame->wasm_function_index();
+}
+
+int WasmSTGetColumnNumber(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  return -1;
+}
+
+bool WasmSTIsNative(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  return false;
+}
+
+bool WasmSTIsToplevel(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  return false;
+}
+
+bool WasmSTIsEval(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  return false;
+}
+
+bool WasmSTIsConstructor(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  return false;
+}
+
+Handle<String> WasmSTToString(Handle<StackTraceFrame> frame) {
+  DCHECK(frame->IsWasmFrame());
+  Isolate* isolate = frame->GetIsolate();
+  IncrementalStringBuilder builder(isolate);
+
+  Handle<Object> name = frame->GetFunctionName();
+  if (name->IsNull(isolate)) {
+    builder.AppendCString("<WASM UNNAMED>");
+  } else {
+    DCHECK(name->IsString());
+    builder.AppendString(Handle<String>::cast(name));
+  }
+
+  builder.AppendCString(" (<WASM>[");
+
+  Handle<String> ix = isolate->factory()->NumberToString(
+      handle(Smi::FromInt(frame->wasm_function_index()), isolate));
+  builder.AppendString(ix);
+
+  builder.AppendCString("]+");
+
+  Handle<Object> pos = handle(Smi::FromInt(frame->GetPosition()), isolate);
+  builder.AppendString(isolate->factory()->NumberToString(pos));
+  builder.AppendCString(")");
+
+  return builder.Finish().ToHandleChecked();
+}
+
+}  // namespace
+
+#define STACK_TRACE_FRAME_DISPATCH(return_type, name) \
+  return_type StackTraceFrame::name() {               \
+    if (IsJavaScriptFrame()) {                        \
+      return JSST##name(handle(this));                \
+    } else {                                          \
+      DCHECK(IsWasmFrame());                          \
+      return WasmST##name(handle(this));              \
+    }                                                 \
+  }
+
+STACK_TRACE_FRAME_DISPATCH(int, GetPosition)
+STACK_TRACE_FRAME_DISPATCH(Handle<Object>, GetFileName)
+STACK_TRACE_FRAME_DISPATCH(Handle<Object>, GetFunctionName)
+STACK_TRACE_FRAME_DISPATCH(Handle<Object>, GetScriptNameOrSourceUrl)
+STACK_TRACE_FRAME_DISPATCH(Handle<Object>, GetMethodName)
+STACK_TRACE_FRAME_DISPATCH(Handle<Object>, GetTypeName)
+STACK_TRACE_FRAME_DISPATCH(Handle<Object>, GetEvalOrigin)
+STACK_TRACE_FRAME_DISPATCH(int, GetLineNumber)
+STACK_TRACE_FRAME_DISPATCH(int, GetColumnNumber)
+STACK_TRACE_FRAME_DISPATCH(bool, IsNative)
+STACK_TRACE_FRAME_DISPATCH(bool, IsToplevel)
+STACK_TRACE_FRAME_DISPATCH(bool, IsEval)
+STACK_TRACE_FRAME_DISPATCH(bool, IsConstructor)
+STACK_TRACE_FRAME_DISPATCH(Handle<String>, ToString)
+#undef STACK_TRACE_FRAME_DISPATCH
 
 SharedFunctionInfo::Iterator::Iterator(Isolate* isolate)
     : script_iterator_(isolate),
       sfi_iterator_(isolate->heap()->noscript_shared_function_infos()) {}
 
 
 bool SharedFunctionInfo::Iterator::NextScript() {
   Script* script = script_iterator_.Next();
   if (script == NULL) return false;
   sfi_iterator_.Reset(script->shared_function_infos());
@@ skipping 6121 matching lines @@
   for (PrototypeIterator iter(isolate, this, kStartAtReceiver,
                               PrototypeIterator::END_AT_NULL);
        !iter.IsAtEnd(); iter.AdvanceIgnoringProxies()) {
     if (iter.GetCurrent<Object>()->IsJSProxy()) return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8