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objects-printer.cc
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objects-printer.cc
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// 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 <iomanip>
#include <memory>
#include "src/diagnostics/disasm.h"
#include "src/diagnostics/disassembler.h"
#include "src/heap/heap-inl.h" // For InOldSpace.
#include "src/heap/heap-write-barrier-inl.h" // For GetIsolateFromWritableObj.
#include "src/init/bootstrapper.h"
#include "src/interpreter/bytecodes.h"
#include "src/objects/arguments-inl.h"
#include "src/objects/cell-inl.h"
#include "src/objects/data-handler-inl.h"
#include "src/objects/debug-objects-inl.h"
#include "src/objects/embedder-data-array-inl.h"
#include "src/objects/embedder-data-slot-inl.h"
#include "src/objects/feedback-cell-inl.h"
#include "src/objects/foreign-inl.h"
#include "src/objects/free-space-inl.h"
#include "src/objects/hash-table-inl.h"
#include "src/objects/heap-number-inl.h"
#include "src/objects/js-array-buffer-inl.h"
#include "src/objects/js-array-inl.h"
#include "src/objects/objects-inl.h"
#include "src/objects/objects.h"
#include "src/snapshot/embedded/embedded-data.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/js-break-iterator-inl.h"
#include "src/objects/js-collator-inl.h"
#endif // V8_INTL_SUPPORT
#include "src/objects/js-collection-inl.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/js-date-time-format-inl.h"
#include "src/objects/js-display-names-inl.h"
#endif // V8_INTL_SUPPORT
#include "src/objects/js-generator-inl.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/js-list-format-inl.h"
#include "src/objects/js-locale-inl.h"
#include "src/objects/js-number-format-inl.h"
#include "src/objects/js-plural-rules-inl.h"
#endif // V8_INTL_SUPPORT
#include "src/objects/js-regexp-inl.h"
#include "src/objects/js-regexp-string-iterator-inl.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/js-relative-time-format-inl.h"
#include "src/objects/js-segment-iterator-inl.h"
#include "src/objects/js-segmenter-inl.h"
#include "src/objects/js-segments-inl.h"
#endif // V8_INTL_SUPPORT
#include "src/compiler/node.h"
#include "src/objects/js-weak-refs-inl.h"
#include "src/objects/literal-objects-inl.h"
#include "src/objects/microtask-inl.h"
#include "src/objects/module-inl.h"
#include "src/objects/oddball-inl.h"
#include "src/objects/promise-inl.h"
#include "src/objects/property-descriptor-object-inl.h"
#include "src/objects/stack-frame-info-inl.h"
#include "src/objects/string-set-inl.h"
#include "src/objects/struct-inl.h"
#include "src/objects/template-objects-inl.h"
#include "src/objects/transitions-inl.h"
#include "src/regexp/regexp.h"
#include "src/utils/ostreams.h"
#include "src/wasm/wasm-code-manager.h"
#include "src/wasm/wasm-engine.h"
#include "src/wasm/wasm-objects-inl.h"
#include "torque-generated/class-definitions-tq-inl.h"
#include "torque-generated/exported-class-definitions-tq-inl.h"
#include "torque-generated/internal-class-definitions-tq-inl.h"
namespace v8 {
namespace internal {
#ifdef OBJECT_PRINT
void Object::Print() const {
// Output into debugger's command window if a debugger is attached.
DbgStdoutStream dbg_os;
this->Print(dbg_os);
dbg_os << std::flush;
StdoutStream os;
this->Print(os);
os << std::flush;
}
void Object::Print(std::ostream& os) const { // NOLINT
if (IsSmi()) {
os << "Smi: " << std::hex << "0x" << Smi::ToInt(*this);
os << std::dec << " (" << Smi::ToInt(*this) << ")\n";
} else {
HeapObject::cast(*this).HeapObjectPrint(os);
}
}
namespace {
void PrintHeapObjectHeaderWithoutMap(HeapObject object, std::ostream& os,
const char* id) { // NOLINT
os << reinterpret_cast<void*>(object.ptr()) << ": [";
if (id != nullptr) {
os << id;
} else {
os << object.map().instance_type();
}
os << "]";
if (ReadOnlyHeap::Contains(object)) {
os << " in ReadOnlySpace";
} else if (GetHeapFromWritableObject(object)->InOldSpace(object)) {
os << " in OldSpace";
}
}
} // namespace
void HeapObject::PrintHeader(std::ostream& os, const char* id) { // NOLINT
PrintHeapObjectHeaderWithoutMap(*this, os, id);
if (!IsMap()) os << "\n - map: " << Brief(map());
}
void HeapObject::HeapObjectPrint(std::ostream& os) { // NOLINT
InstanceType instance_type = map().instance_type();
if (instance_type < FIRST_NONSTRING_TYPE) {
String::cast(*this).StringPrint(os);
os << "\n";
return;
}
switch (instance_type) {
case FIXED_ARRAY_TYPE:
FixedArray::cast(*this).FixedArrayPrint(os);
break;
case AWAIT_CONTEXT_TYPE:
case BLOCK_CONTEXT_TYPE:
case CATCH_CONTEXT_TYPE:
case DEBUG_EVALUATE_CONTEXT_TYPE:
case EVAL_CONTEXT_TYPE:
case FUNCTION_CONTEXT_TYPE:
case MODULE_CONTEXT_TYPE:
case SCRIPT_CONTEXT_TYPE:
case WITH_CONTEXT_TYPE:
case SCRIPT_CONTEXT_TABLE_TYPE:
Context::cast(*this).ContextPrint(os);
break;
case NATIVE_CONTEXT_TYPE:
NativeContext::cast(*this).NativeContextPrint(os);
break;
case HASH_TABLE_TYPE:
ObjectHashTable::cast(*this).ObjectHashTablePrint(os);
break;
case ORDERED_HASH_MAP_TYPE:
case ORDERED_HASH_SET_TYPE:
case ORDERED_NAME_DICTIONARY_TYPE:
case NAME_DICTIONARY_TYPE:
case GLOBAL_DICTIONARY_TYPE:
case SIMPLE_NUMBER_DICTIONARY_TYPE:
FixedArray::cast(*this).FixedArrayPrint(os);
break;
case NUMBER_DICTIONARY_TYPE:
NumberDictionary::cast(*this).NumberDictionaryPrint(os);
break;
case EPHEMERON_HASH_TABLE_TYPE:
EphemeronHashTable::cast(*this).EphemeronHashTablePrint(os);
break;
case OBJECT_BOILERPLATE_DESCRIPTION_TYPE:
ObjectBoilerplateDescription::cast(*this)
.ObjectBoilerplateDescriptionPrint(os);
break;
case TRANSITION_ARRAY_TYPE:
TransitionArray::cast(*this).TransitionArrayPrint(os);
break;
case CLOSURE_FEEDBACK_CELL_ARRAY_TYPE:
ClosureFeedbackCellArray::cast(*this).ClosureFeedbackCellArrayPrint(os);
break;
case FILLER_TYPE:
os << "filler";
break;
case JS_OBJECT_TYPE: // fall through
case JS_API_OBJECT_TYPE:
case JS_SPECIAL_API_OBJECT_TYPE:
case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
case JS_ERROR_TYPE:
JSObject::cast(*this).JSObjectPrint(os);
break;
case WASM_INSTANCE_OBJECT_TYPE:
WasmInstanceObject::cast(*this).WasmInstanceObjectPrint(os);
break;
case JS_GENERATOR_OBJECT_TYPE:
JSGeneratorObject::cast(*this).JSGeneratorObjectPrint(os);
break;
case CODE_TYPE:
Code::cast(*this).CodePrint(os);
break;
case CODE_DATA_CONTAINER_TYPE:
CodeDataContainer::cast(*this).CodeDataContainerPrint(os);
break;
case JS_SET_KEY_VALUE_ITERATOR_TYPE:
case JS_SET_VALUE_ITERATOR_TYPE:
JSSetIterator::cast(*this).JSSetIteratorPrint(os);
break;
case JS_MAP_KEY_ITERATOR_TYPE:
case JS_MAP_KEY_VALUE_ITERATOR_TYPE:
case JS_MAP_VALUE_ITERATOR_TYPE:
JSMapIterator::cast(*this).JSMapIteratorPrint(os);
break;
#define MAKE_TORQUE_CASE(Name, TYPE) \
case TYPE: \
Name::cast(*this).Name##Print(os); \
break;
// Every class that has its fields defined in a .tq file and corresponds
// to exactly one InstanceType value is included in the following list.
TORQUE_INSTANCE_CHECKERS_SINGLE_FULLY_DEFINED(MAKE_TORQUE_CASE)
TORQUE_INSTANCE_CHECKERS_MULTIPLE_FULLY_DEFINED(MAKE_TORQUE_CASE)
#undef MAKE_TORQUE_CASE
case FOREIGN_TYPE:
Foreign::cast(*this).ForeignPrint(os);
break;
case ALLOCATION_SITE_TYPE:
AllocationSite::cast(*this).AllocationSitePrint(os);
break;
case LOAD_HANDLER_TYPE:
LoadHandler::cast(*this).LoadHandlerPrint(os);
break;
case STORE_HANDLER_TYPE:
StoreHandler::cast(*this).StoreHandlerPrint(os);
break;
case SCOPE_INFO_TYPE:
ScopeInfo::cast(*this).ScopeInfoPrint(os);
break;
case FEEDBACK_METADATA_TYPE:
FeedbackMetadata::cast(*this).FeedbackMetadataPrint(os);
break;
case WEAK_FIXED_ARRAY_TYPE:
WeakFixedArray::cast(*this).WeakFixedArrayPrint(os);
break;
case INTERNALIZED_STRING_TYPE:
case EXTERNAL_INTERNALIZED_STRING_TYPE:
case ONE_BYTE_INTERNALIZED_STRING_TYPE:
case EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE:
case UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE:
case UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE:
case STRING_TYPE:
case CONS_STRING_TYPE:
case EXTERNAL_STRING_TYPE:
case SLICED_STRING_TYPE:
case THIN_STRING_TYPE:
case ONE_BYTE_STRING_TYPE:
case CONS_ONE_BYTE_STRING_TYPE:
case EXTERNAL_ONE_BYTE_STRING_TYPE:
case SLICED_ONE_BYTE_STRING_TYPE:
case THIN_ONE_BYTE_STRING_TYPE:
case UNCACHED_EXTERNAL_STRING_TYPE:
case UNCACHED_EXTERNAL_ONE_BYTE_STRING_TYPE:
// TODO(all): Handle these types too.
os << "UNKNOWN TYPE " << map().instance_type();
UNREACHABLE();
}
}
void ByteArray::ByteArrayPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "ByteArray");
os << "\n - length: " << length()
<< "\n - data-start: " << static_cast<void*>(GetDataStartAddress())
<< "\n";
}
void BytecodeArray::BytecodeArrayPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "BytecodeArray");
os << "\n";
Disassemble(os);
}
void FreeSpace::FreeSpacePrint(std::ostream& os) { // NOLINT
os << "free space, size " << Size() << "\n";
}
bool JSObject::PrintProperties(std::ostream& os) { // NOLINT
if (HasFastProperties()) {
DescriptorArray descs = map().instance_descriptors();
int nof_inobject_properties = map().GetInObjectProperties();
for (InternalIndex i : map().IterateOwnDescriptors()) {
os << "\n ";
descs.GetKey(i).NamePrint(os);
os << ": ";
PropertyDetails details = descs.GetDetails(i);
switch (details.location()) {
case kField: {
FieldIndex field_index = FieldIndex::ForDescriptor(map(), i);
if (IsUnboxedDoubleField(field_index)) {
os << "<unboxed double> " << RawFastDoublePropertyAt(field_index);
} else {
os << Brief(RawFastPropertyAt(field_index));
}
break;
}
case kDescriptor:
os << Brief(descs.GetStrongValue(i));
break;
}
os << " ";
details.PrintAsFastTo(os, PropertyDetails::kForProperties);
if (details.location() != kField) continue;
int field_index = details.field_index();
if (nof_inobject_properties <= field_index) {
field_index -= nof_inobject_properties;
os << " properties[" << field_index << "]";
}
}
return map().NumberOfOwnDescriptors() > 0;
} else if (IsJSGlobalObject()) {
JSGlobalObject::cast(*this).global_dictionary().Print(os);
} else {
property_dictionary().Print(os);
}
return true;
}
namespace {
template <class T>
bool IsTheHoleAt(T array, int index) {
return false;
}
template <>
bool IsTheHoleAt(FixedDoubleArray array, int index) {
return array.is_the_hole(index);
}
template <class T>
double GetScalarElement(T array, int index) {
if (IsTheHoleAt(array, index)) {
return std::numeric_limits<double>::quiet_NaN();
}
return array.get_scalar(index);
}
template <class T>
void DoPrintElements(std::ostream& os, Object object, int length) { // NOLINT
const bool print_the_hole = std::is_same<T, FixedDoubleArray>::value;
T array = T::cast(object);
if (length == 0) return;
int previous_index = 0;
double previous_value = GetScalarElement(array, 0);
double value = 0.0;
int i;
for (i = 1; i <= length; i++) {
if (i < length) value = GetScalarElement(array, i);
bool values_are_nan = std::isnan(previous_value) && std::isnan(value);
if (i != length && (previous_value == value || values_are_nan) &&
IsTheHoleAt(array, i - 1) == IsTheHoleAt(array, i)) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": ";
if (print_the_hole && IsTheHoleAt(array, i - 1)) {
os << "<the_hole>";
} else {
os << previous_value;
}
previous_index = i;
previous_value = value;
}
}
template <typename ElementType>
void PrintTypedArrayElements(std::ostream& os, const ElementType* data_ptr,
size_t length, bool is_on_heap) {
if (length == 0) return;
size_t previous_index = 0;
if (i::FLAG_mock_arraybuffer_allocator && !is_on_heap) {
// Don't try to print data that's not actually allocated.
os << "\n 0-" << length << ": <mocked array buffer bytes>";
return;
}
ElementType previous_value = data_ptr[0];
ElementType value = 0;
for (size_t i = 1; i <= length; i++) {
if (i < length) value = data_ptr[i];
if (i != length && previous_value == value) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": " << +previous_value;
previous_index = i;
previous_value = value;
}
}
template <typename T>
void PrintFixedArrayElements(std::ostream& os, T array) {
// Print in array notation for non-sparse arrays.
Object previous_value = array.length() > 0 ? array.get(0) : Object();
Object value;
int previous_index = 0;
int i;
for (i = 1; i <= array.length(); i++) {
if (i < array.length()) value = array.get(i);
if (previous_value == value && i != array.length()) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": " << Brief(previous_value);
previous_index = i;
previous_value = value;
}
}
void PrintDictionaryElements(std::ostream& os, FixedArrayBase elements) {
// Print some internal fields
NumberDictionary dict = NumberDictionary::cast(elements);
if (dict.requires_slow_elements()) {
os << "\n - requires_slow_elements";
} else {
os << "\n - max_number_key: " << dict.max_number_key();
}
dict.Print(os);
}
void PrintSloppyArgumentElements(std::ostream& os, ElementsKind kind,
SloppyArgumentsElements elements) {
FixedArray arguments_store = elements.arguments();
os << "\n 0: context: " << Brief(elements.context())
<< "\n 1: arguments_store: " << Brief(arguments_store)
<< "\n parameter to context slot map:";
for (int i = 0; i < elements.length(); i++) {
Object mapped_entry = elements.mapped_entries(i);
os << "\n " << i << ": param(" << i << "): " << Brief(mapped_entry);
if (mapped_entry.IsTheHole()) {
os << " in the arguments_store[" << i << "]";
} else {
os << " in the context";
}
}
if (arguments_store.length() == 0) return;
os << "\n }"
<< "\n - arguments_store: " << Brief(arguments_store) << " "
<< ElementsKindToString(arguments_store.map().elements_kind()) << " {";
if (kind == FAST_SLOPPY_ARGUMENTS_ELEMENTS) {
PrintFixedArrayElements(os, arguments_store);
} else {
DCHECK_EQ(kind, SLOW_SLOPPY_ARGUMENTS_ELEMENTS);
PrintDictionaryElements(os, arguments_store);
}
}
void PrintEmbedderData(const Isolate* isolate, std::ostream& os,
EmbedderDataSlot slot) {
DisallowHeapAllocation no_gc;
Object value = slot.load_tagged();
os << Brief(value);
void* raw_pointer;
if (slot.ToAlignedPointer(isolate, &raw_pointer)) {
os << ", aligned pointer: " << raw_pointer;
}
}
} // namespace
void JSObject::PrintElements(std::ostream& os) { // NOLINT
// Don't call GetElementsKind, its validation code can cause the printer to
// fail when debugging.
os << " - elements: " << Brief(elements()) << " {";
switch (map().elements_kind()) {
case HOLEY_SMI_ELEMENTS:
case PACKED_SMI_ELEMENTS:
case HOLEY_ELEMENTS:
case HOLEY_FROZEN_ELEMENTS:
case HOLEY_SEALED_ELEMENTS:
case HOLEY_NONEXTENSIBLE_ELEMENTS:
case PACKED_ELEMENTS:
case PACKED_FROZEN_ELEMENTS:
case PACKED_SEALED_ELEMENTS:
case PACKED_NONEXTENSIBLE_ELEMENTS:
case FAST_STRING_WRAPPER_ELEMENTS: {
PrintFixedArrayElements(os, FixedArray::cast(elements()));
break;
}
case HOLEY_DOUBLE_ELEMENTS:
case PACKED_DOUBLE_ELEMENTS: {
DoPrintElements<FixedDoubleArray>(os, elements(), elements().length());
break;
}
#define PRINT_ELEMENTS(Type, type, TYPE, elementType) \
case TYPE##_ELEMENTS: { \
size_t length = JSTypedArray::cast(*this).length(); \
bool is_on_heap = JSTypedArray::cast(*this).is_on_heap(); \
const elementType* data_ptr = \
static_cast<const elementType*>(JSTypedArray::cast(*this).DataPtr()); \
PrintTypedArrayElements<elementType>(os, data_ptr, length, is_on_heap); \
break; \
}
TYPED_ARRAYS(PRINT_ELEMENTS)
#undef PRINT_ELEMENTS
case DICTIONARY_ELEMENTS:
case SLOW_STRING_WRAPPER_ELEMENTS:
PrintDictionaryElements(os, elements());
break;
case FAST_SLOPPY_ARGUMENTS_ELEMENTS:
case SLOW_SLOPPY_ARGUMENTS_ELEMENTS:
PrintSloppyArgumentElements(os, map().elements_kind(),
SloppyArgumentsElements::cast(elements()));
break;
case NO_ELEMENTS:
break;
}
os << "\n }\n";
}
static void JSObjectPrintHeader(std::ostream& os, JSObject obj,
const char* id) { // NOLINT
Isolate* isolate = obj.GetIsolate();
obj.PrintHeader(os, id);
// Don't call GetElementsKind, its validation code can cause the printer to
// fail when debugging.
os << " [";
if (obj.HasFastProperties()) {
os << "FastProperties";
} else {
os << "DictionaryProperties";
}
PrototypeIterator iter(isolate, obj);
os << "]\n - prototype: " << Brief(iter.GetCurrent());
os << "\n - elements: " << Brief(obj.elements()) << " ["
<< ElementsKindToString(obj.map().elements_kind());
if (obj.elements().IsCowArray()) os << " (COW)";
os << "]";
Object hash = obj.GetHash();
if (hash.IsSmi()) {
os << "\n - hash: " << Brief(hash);
}
if (obj.GetEmbedderFieldCount() > 0) {
os << "\n - embedder fields: " << obj.GetEmbedderFieldCount();
}
}
static void JSObjectPrintBody(std::ostream& os,
JSObject obj, // NOLINT
bool print_elements = true) {
os << "\n - properties: ";
Object properties_or_hash = obj.raw_properties_or_hash();
if (!properties_or_hash.IsSmi()) {
os << Brief(properties_or_hash);
}
os << " {";
if (obj.PrintProperties(os)) os << "\n ";
os << "}\n";
if (print_elements) {
size_t length = obj.IsJSTypedArray() ? JSTypedArray::cast(obj).length()
: obj.elements().length();
if (length > 0) obj.PrintElements(os);
}
int embedder_fields = obj.GetEmbedderFieldCount();
if (embedder_fields > 0) {
const Isolate* isolate = GetIsolateForPtrCompr(obj);
os << " - embedder fields = {";
for (int i = 0; i < embedder_fields; i++) {
os << "\n ";
PrintEmbedderData(isolate, os, EmbedderDataSlot(obj, i));
}
os << "\n }\n";
}
}
void JSObject::JSObjectPrint(std::ostream& os) { // NOLINT
JSObjectPrintHeader(os, *this, nullptr);
JSObjectPrintBody(os, *this);
}
void JSGeneratorObject::JSGeneratorObjectPrint(std::ostream& os) { // NOLINT
JSObjectPrintHeader(os, *this, "JSGeneratorObject");
os << "\n - function: " << Brief(function());
os << "\n - context: " << Brief(context());
os << "\n - receiver: " << Brief(receiver());
if (is_executing() || is_closed()) {
os << "\n - input: " << Brief(input_or_debug_pos());
} else {
DCHECK(is_suspended());
os << "\n - debug pos: " << Brief(input_or_debug_pos());
}
const char* mode = "(invalid)";
switch (resume_mode()) {
case kNext:
mode = ".next()";
break;
case kReturn:
mode = ".return()";
break;
case kThrow:
mode = ".throw()";
break;
}
os << "\n - resume mode: " << mode;
os << "\n - continuation: " << continuation();
if (is_closed()) os << " (closed)";
if (is_executing()) os << " (executing)";
if (is_suspended()) os << " (suspended)";
if (is_suspended()) {
DisallowHeapAllocation no_gc;
SharedFunctionInfo fun_info = function().shared();
if (fun_info.HasSourceCode()) {
Script script = Script::cast(fun_info.script());
String script_name = script.name().IsString()
? String::cast(script.name())
: GetReadOnlyRoots().empty_string();
os << "\n - source position: ";
// Can't collect source positions here if not available as that would
// allocate memory.
if (fun_info.HasBytecodeArray() &&
fun_info.GetBytecodeArray().HasSourcePositionTable()) {
os << source_position();
os << " (";
script_name.PrintUC16(os);
int lin = script.GetLineNumber(source_position()) + 1;
int col = script.GetColumnNumber(source_position()) + 1;
os << ", lin " << lin;
os << ", col " << col;
} else {
os << "unavailable";
}
os << ")";
}
}
os << "\n - register file: " << Brief(parameters_and_registers());
JSObjectPrintBody(os, *this);
}
void JSArray::JSArrayPrint(std::ostream& os) { // NOLINT
JSObjectPrintHeader(os, *this, "JSArray");
os << "\n - length: " << Brief(this->length());
JSObjectPrintBody(os, *this);
}
void JSPromise::JSPromisePrint(std::ostream& os) { // NOLINT
JSObjectPrintHeader(os, *this, "JSPromise");
os << "\n - status: " << JSPromise::Status(status());
if (status() == Promise::kPending) {
os << "\n - reactions: " << Brief(reactions());
} else {
os << "\n - result: " << Brief(result());
}
os << "\n - has_handler: " << has_handler();
os << "\n - handled_hint: " << handled_hint();
JSObjectPrintBody(os, *this);
}
void JSRegExp::JSRegExpPrint(std::ostream& os) { // NOLINT
JSObjectPrintHeader(os, *this, "JSRegExp");
os << "\n - data: " << Brief(data());
os << "\n - source: " << Brief(source());
JSObjectPrintBody(os, *this);
}
void JSRegExpStringIterator::JSRegExpStringIteratorPrint(
std::ostream& os) { // NOLINT
JSObjectPrintHeader(os, *this, "JSRegExpStringIterator");
os << "\n - regex: " << Brief(iterating_reg_exp());
os << "\n - string: " << Brief(iterated_string());
os << "\n - done: " << done();
os << "\n - global: " << global();
os << "\n - unicode: " << unicode();
JSObjectPrintBody(os, *this);
}
void Symbol::SymbolPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "Symbol");
os << "\n - hash: " << Hash();
os << "\n - description: " << Brief(description());
if (description().IsUndefined()) {
os << " (" << PrivateSymbolToName() << ")";
}
os << "\n - private: " << is_private();
}
void DescriptorArray::DescriptorArrayPrint(std::ostream& os) {
PrintHeader(os, "DescriptorArray");
os << "\n - enum_cache: ";
if (enum_cache().keys().length() == 0) {
os << "empty";
} else {
os << enum_cache().keys().length();
os << "\n - keys: " << Brief(enum_cache().keys());
os << "\n - indices: " << Brief(enum_cache().indices());
}
os << "\n - nof slack descriptors: " << number_of_slack_descriptors();
os << "\n - nof descriptors: " << number_of_descriptors();
int16_t raw_marked = raw_number_of_marked_descriptors();
os << "\n - raw marked descriptors: mc epoch "
<< NumberOfMarkedDescriptors::Epoch::decode(raw_marked) << ", marked "
<< NumberOfMarkedDescriptors::Marked::decode(raw_marked);
PrintDescriptors(os);
}
namespace {
void PrintFixedArrayWithHeader(std::ostream& os, FixedArray array,
const char* type) {
array.PrintHeader(os, type);
os << "\n - length: " << array.length();
PrintFixedArrayElements(os, array);
os << "\n";
}
template <typename T>
void PrintHashTableWithHeader(std::ostream& os, T table, const char* type) {
table.PrintHeader(os, type);
os << "\n - length: " << table.length();
os << "\n - elements: " << table.NumberOfElements();
os << "\n - deleted: " << table.NumberOfDeletedElements();
os << "\n - capacity: " << table.Capacity();
os << "\n - elements: {";
for (InternalIndex i : table.IterateEntries()) {
os << '\n'
<< std::setw(12) << i.as_int() << ": " << Brief(table.KeyAt(i)) << " -> "
<< Brief(table.ValueAt(i));
}
os << "\n }\n";
}
template <typename T>
void PrintWeakArrayElements(std::ostream& os, T* array) {
// Print in array notation for non-sparse arrays.
MaybeObject previous_value =
array->length() > 0 ? array->Get(0) : MaybeObject(kNullAddress);
MaybeObject value;
int previous_index = 0;
int i;
for (i = 1; i <= array->length(); i++) {
if (i < array->length()) value = array->Get(i);
if (previous_value == value && i != array->length()) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": " << Brief(previous_value);
previous_index = i;
previous_value = value;
}
}
} // namespace
void EmbedderDataArray::EmbedderDataArrayPrint(std::ostream& os) {
const Isolate* isolate = GetIsolateForPtrCompr(*this);
PrintHeader(os, "EmbedderDataArray");
os << "\n - length: " << length();
EmbedderDataSlot start(*this, 0);
EmbedderDataSlot end(*this, length());
for (EmbedderDataSlot slot = start; slot < end; ++slot) {
os << "\n ";
PrintEmbedderData(isolate, os, slot);
}
os << "\n";
}
void FixedArray::FixedArrayPrint(std::ostream& os) {
PrintFixedArrayWithHeader(os, *this, "FixedArray");
}
namespace {
void PrintContextWithHeader(std::ostream& os, Context context,
const char* type) {
context.PrintHeader(os, type);
os << "\n - length: " << context.length();
os << "\n - scope_info: " << Brief(context.scope_info());
os << "\n - previous: " << Brief(context.unchecked_previous());
os << "\n - native_context: " << Brief(context.native_context());
PrintFixedArrayElements(os, context);
os << "\n";
}
} // namespace
void Context::ContextPrint(std::ostream& os) {
PrintContextWithHeader(os, *this, "Context");
}
void NativeContext::NativeContextPrint(std::ostream& os) {
PrintContextWithHeader(os, *this, "NativeContext");
os << " - microtask_queue: " << microtask_queue() << "\n";
}
void ObjectHashTable::ObjectHashTablePrint(std::ostream& os) {
PrintHashTableWithHeader(os, *this, "ObjectHashTable");
}
void NumberDictionary::NumberDictionaryPrint(std::ostream& os) {
PrintHashTableWithHeader(os, *this, "NumberDictionary");
}
void EphemeronHashTable::EphemeronHashTablePrint(std::ostream& os) {
PrintHashTableWithHeader(os, *this, "EphemeronHashTable");
}
void ObjectBoilerplateDescription::ObjectBoilerplateDescriptionPrint(
std::ostream& os) {
PrintFixedArrayWithHeader(os, *this, "ObjectBoilerplateDescription");
}
void PropertyArray::PropertyArrayPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "PropertyArray");
os << "\n - length: " << length();
os << "\n - hash: " << Hash();
PrintFixedArrayElements(os, *this);
os << "\n";
}
void FixedDoubleArray::FixedDoubleArrayPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "FixedDoubleArray");
os << "\n - length: " << length();
DoPrintElements<FixedDoubleArray>(os, *this, length());
os << "\n";
}
void WeakFixedArray::WeakFixedArrayPrint(std::ostream& os) {
PrintHeader(os, "WeakFixedArray");
os << "\n - length: " << length() << "\n";
PrintWeakArrayElements(os, this);
os << "\n";
}
void WeakArrayList::WeakArrayListPrint(std::ostream& os) {
PrintHeader(os, "WeakArrayList");
os << "\n - capacity: " << capacity();
os << "\n - length: " << length() << "\n";
PrintWeakArrayElements(os, this);
os << "\n";
}
void TransitionArray::TransitionArrayPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "TransitionArray");
PrintInternal(os);
}
void FeedbackCell::FeedbackCellPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "FeedbackCell");
ReadOnlyRoots roots = GetReadOnlyRoots();
if (map() == roots.no_closures_cell_map()) {
os << "\n - no closures";
} else if (map() == roots.one_closure_cell_map()) {
os << "\n - one closure";
} else if (map() == roots.many_closures_cell_map()) {
os << "\n - many closures";
} else {
os << "\n - Invalid FeedbackCell map";
}
os << " - value: " << Brief(value());
os << "\n";
}
void FeedbackVectorSpec::Print() {
StdoutStream os;
FeedbackVectorSpecPrint(os);
os << std::flush;
}
void FeedbackVectorSpec::FeedbackVectorSpecPrint(std::ostream& os) { // NOLINT
int slot_count = slots();
os << " - slot_count: " << slot_count;
if (slot_count == 0) {
os << " (empty)\n";
return;
}
for (int slot = 0; slot < slot_count;) {
FeedbackSlotKind kind = GetKind(FeedbackSlot(slot));
int entry_size = FeedbackMetadata::GetSlotSize(kind);
DCHECK_LT(0, entry_size);
os << "\n Slot #" << slot << " " << kind;
slot += entry_size;
}
os << "\n";
}
void FeedbackMetadata::FeedbackMetadataPrint(std::ostream& os) {
PrintHeader(os, "FeedbackMetadata");
os << "\n - slot_count: " << slot_count();
FeedbackMetadataIterator iter(*this);
while (iter.HasNext()) {
FeedbackSlot slot = iter.Next();
FeedbackSlotKind kind = iter.kind();
os << "\n Slot " << slot << " " << kind;
}
os << "\n";
}
void ClosureFeedbackCellArray::ClosureFeedbackCellArrayPrint(std::ostream& os) {
PrintFixedArrayWithHeader(os, *this, "ClosureFeedbackCellArray");
}
void FeedbackVector::FeedbackVectorPrint(std::ostream& os) { // NOLINT
PrintHeader(os, "FeedbackVector");
os << "\n - length: " << length();
if (length() == 0) {
os << " (empty)\n";
return;
}
os << "\n - shared function info: " << Brief(shared_function_info());
os << "\n - optimized code/marker: ";
if (has_optimized_code()) {
os << Brief(optimized_code());
} else {
os << optimization_marker();
}
os << "\n - invocation count: " << invocation_count();
os << "\n - profiler ticks: " << profiler_ticks();
FeedbackMetadataIterator iter(metadata());
while (iter.HasNext()) {
FeedbackSlot slot = iter.Next();
FeedbackSlotKind kind = iter.kind();
os << "\n - slot " << slot << " " << kind << " ";
FeedbackSlotPrint(os, slot);
int entry_size = iter.entry_size();
if (entry_size > 0) os << " {";
for (int i = 0; i < entry_size; i++) {
int index = GetIndex(slot) + i;
os << "\n [" << index << "]: " << Brief(get(index));
}
if (entry_size > 0) os << "\n }";
}
os << "\n";
}
void FeedbackVector::FeedbackSlotPrint(std::ostream& os,
FeedbackSlot slot) { // NOLINT
FeedbackNexus nexus(*this, slot);
nexus.Print(os);
}
void FeedbackNexus::Print(std::ostream& os) { // NOLINT
switch (kind()) {
case FeedbackSlotKind::kCall:
case FeedbackSlotKind::kCloneObject:
case FeedbackSlotKind::kHasKeyed:
case FeedbackSlotKind::kInstanceOf:
case FeedbackSlotKind::kLoadGlobalInsideTypeof:
case FeedbackSlotKind::kLoadGlobalNotInsideTypeof:
case FeedbackSlotKind::kLoadKeyed:
case FeedbackSlotKind::kLoadProperty:
case FeedbackSlotKind::kStoreDataPropertyInLiteral:
case FeedbackSlotKind::kStoreGlobalSloppy:
case FeedbackSlotKind::kStoreGlobalStrict:
case FeedbackSlotKind::kStoreInArrayLiteral:
case FeedbackSlotKind::kStoreKeyedSloppy:
case FeedbackSlotKind::kStoreKeyedStrict:
case FeedbackSlotKind::kStoreNamedSloppy:
case FeedbackSlotKind::kStoreNamedStrict:
case FeedbackSlotKind::kStoreOwnNamed: {
os << InlineCacheState2String(ic_state());
break;
}
case FeedbackSlotKind::kBinaryOp: {
os << "BinaryOp:" << GetBinaryOperationFeedback();
break;
}
case FeedbackSlotKind::kCompareOp: {
os << "CompareOp:" << GetCompareOperationFeedback();
break;
}
case FeedbackSlotKind::kForIn: {
os << "ForIn:" << GetForInFeedback();
break;
}