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Unified Diff: src/objects.cc

Issue 2230953002: Use a custom Struct for stack trace storage (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Tweaks Created 4 years, 4 months ago
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Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index d1dd44c139d8ad8100b5e859ef9307d7e30fd76d..9f70fd443ef2ad2537eb670c8b11762c60093895 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -13142,6 +13142,616 @@ Script::Iterator::Iterator(Isolate* isolate)
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),
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