dart-sdk/runtime/vm/raw_object_fields.cc
Martin Kustermann f20e6d3fa0 [vm] Remove complex logic in kernel loader for dealing with annotations
Instead of peeking into constant table and then delaying scanning of
constants by putting it in an array, which is walked again in some
future point, we simply read the annotation constants entirely without
requiring const evaluation. This works fine for pragma annotations the
VM is interested in - as there's no user-defined classes involved.

-> Loading kernel will no longer require constant evaluation to work.

Motivation for this is that [0] wants to make this delayed annotation
scanning logic even more complicated, so I prefer to remove it entirely.

[0] https://dart-review.googlesource.com/c/sdk/+/289027

TEST=ci

Change-Id: Ib859480107b6cf119d66035e66ec161ed11ddb32
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/290502
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2023-03-22 12:25:47 +00:00

343 lines
22 KiB
C++

// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include <type_traits>
#include "vm/raw_object_fields.h"
namespace dart {
#if defined(DART_PRECOMPILER) || defined(DART_ENABLE_HEAP_SNAPSHOT_WRITER)
// The list contains concrete classes and all of their fields (including ones
// from super hierarchy)
// If a class is listed here, only the fields in the list will appear in
// heapsnapshots.
#define COMMON_CLASSES_AND_FIELDS(F) \
F(Class, name_) \
F(Class, functions_) \
F(Class, functions_hash_table_) \
F(Class, fields_) \
F(Class, offset_in_words_to_field_) \
F(Class, interfaces_) \
F(Class, script_) \
F(Class, library_) \
F(Class, type_parameters_) \
F(Class, super_type_) \
F(Class, constants_) \
F(Class, declaration_type_) \
F(Class, invocation_dispatcher_cache_) \
F(PatchClass, patched_class_) \
F(PatchClass, origin_class_) \
F(PatchClass, script_) \
F(PatchClass, library_kernel_data_) \
F(Function, name_) \
F(Function, owner_) \
F(Function, signature_) \
F(Function, data_) \
F(Function, ic_data_array_) \
F(Function, code_) \
F(ClosureData, context_scope_) \
F(ClosureData, parent_function_) \
F(ClosureData, closure_) \
F(Field, name_) \
F(Field, owner_) \
F(Field, type_) \
F(Field, initializer_function_) \
F(Field, host_offset_or_field_id_) \
F(Field, guarded_list_length_) \
F(Field, dependent_code_) \
F(Script, url_) \
F(Script, resolved_url_) \
F(Script, line_starts_) \
F(Script, debug_positions_) \
F(Script, kernel_program_info_) \
F(Script, source_) \
F(Library, name_) \
F(Library, url_) \
F(Library, private_key_) \
F(Library, dictionary_) \
F(Library, metadata_) \
F(Library, toplevel_class_) \
F(Library, used_scripts_) \
F(Library, loading_unit_) \
F(Library, imports_) \
F(Library, exports_) \
F(Library, dependencies_) \
F(Library, kernel_data_) \
F(Library, resolved_names_) \
F(Library, exported_names_) \
F(Library, loaded_scripts_) \
F(Namespace, target_) \
F(Namespace, show_names_) \
F(Namespace, hide_names_) \
F(Namespace, owner_) \
F(KernelProgramInfo, string_offsets_) \
F(KernelProgramInfo, string_data_) \
F(KernelProgramInfo, canonical_names_) \
F(KernelProgramInfo, metadata_payloads_) \
F(KernelProgramInfo, metadata_mappings_) \
F(KernelProgramInfo, scripts_) \
F(KernelProgramInfo, constants_) \
F(KernelProgramInfo, constants_table_) \
F(KernelProgramInfo, libraries_cache_) \
F(KernelProgramInfo, classes_cache_) \
F(KernelProgramInfo, retained_kernel_blob_) \
F(WeakSerializationReference, target_) \
F(WeakSerializationReference, replacement_) \
F(WeakArray, length_) \
F(Code, object_pool_) \
F(Code, instructions_) \
F(Code, owner_) \
F(Code, exception_handlers_) \
F(Code, pc_descriptors_) \
F(Code, catch_entry_) \
F(Code, compressed_stackmaps_) \
F(Code, inlined_id_to_function_) \
F(Code, code_source_map_) \
F(ExceptionHandlers, handled_types_data_) \
F(Context, parent_) \
F(SingleTargetCache, target_) \
F(UnlinkedCall, target_name_) \
F(UnlinkedCall, args_descriptor_) \
F(MonomorphicSmiableCall, expected_cid_) \
F(MonomorphicSmiableCall, entrypoint_) \
F(CallSiteData, target_name_) \
F(CallSiteData, args_descriptor_) \
F(ICData, target_name_) \
F(ICData, args_descriptor_) \
F(ICData, entries_) \
F(ICData, owner_) \
F(InstructionsTable, code_objects_) \
F(MegamorphicCache, target_name_) \
F(MegamorphicCache, args_descriptor_) \
F(MegamorphicCache, buckets_) \
F(MegamorphicCache, mask_) \
F(SubtypeTestCache, cache_) \
F(LoadingUnit, parent_) \
F(LoadingUnit, base_objects_) \
F(ApiError, message_) \
F(LanguageError, previous_error_) \
F(LanguageError, script_) \
F(LanguageError, message_) \
F(LanguageError, formatted_message_) \
F(UnhandledException, exception_) \
F(UnhandledException, stacktrace_) \
F(UnwindError, message_) \
F(LibraryPrefix, name_) \
F(LibraryPrefix, importer_) \
F(LibraryPrefix, imports_) \
F(TypeArguments, instantiations_) \
F(TypeArguments, length_) \
F(TypeArguments, hash_) \
F(TypeArguments, nullability_) \
F(AbstractType, type_test_stub_) \
F(Type, type_test_stub_) \
F(Type, arguments_) \
F(Type, hash_) \
F(FunctionType, type_test_stub_) \
F(FunctionType, hash_) \
F(FunctionType, result_type_) \
F(FunctionType, parameter_types_) \
F(FunctionType, named_parameter_names_) \
F(FunctionType, type_parameters_) \
F(TypeRef, type_test_stub_) \
F(TypeRef, type_) \
F(TypeParameter, type_test_stub_) \
F(TypeParameter, hash_) \
F(TypeParameter, bound_) \
F(TypeParameters, names_) \
F(TypeParameters, flags_) \
F(TypeParameters, bounds_) \
F(TypeParameters, defaults_) \
F(Closure, instantiator_type_arguments_) \
F(Closure, function_type_arguments_) \
F(Closure, delayed_type_arguments_) \
F(Closure, function_) \
F(Closure, context_) \
F(Closure, hash_) \
F(String, length_) \
F(Array, type_arguments_) \
F(Array, length_) \
F(ImmutableArray, type_arguments_) \
F(ImmutableArray, length_) \
F(GrowableObjectArray, type_arguments_) \
F(GrowableObjectArray, length_) \
F(GrowableObjectArray, data_) \
F(Map, type_arguments_) \
F(Map, index_) \
F(Map, hash_mask_) \
F(Map, data_) \
F(Map, used_data_) \
F(Map, deleted_keys_) \
F(ConstMap, type_arguments_) \
F(ConstMap, index_) \
F(ConstMap, hash_mask_) \
F(ConstMap, data_) \
F(ConstMap, used_data_) \
F(ConstMap, deleted_keys_) \
F(Set, type_arguments_) \
F(Set, index_) \
F(Set, hash_mask_) \
F(Set, data_) \
F(Set, used_data_) \
F(Set, deleted_keys_) \
F(ConstSet, type_arguments_) \
F(ConstSet, index_) \
F(ConstSet, hash_mask_) \
F(ConstSet, data_) \
F(ConstSet, used_data_) \
F(ConstSet, deleted_keys_) \
F(TypedData, length_) \
F(ExternalTypedData, length_) \
F(ReceivePort, send_port_) \
F(ReceivePort, handler_) \
F(StackTrace, async_link_) \
F(StackTrace, code_array_) \
F(StackTrace, pc_offset_array_) \
F(RegExp, num_bracket_expressions_) \
F(RegExp, capture_name_map_) \
F(RegExp, pattern_) \
F(RegExp, one_byte_) \
F(RegExp, two_byte_) \
F(RegExp, external_one_byte_) \
F(RegExp, external_two_byte_) \
F(RegExp, one_byte_sticky_) \
F(RegExp, two_byte_sticky_) \
F(RegExp, external_one_byte_sticky_) \
F(RegExp, external_two_byte_sticky_) \
F(SuspendState, function_data_) \
F(SuspendState, then_callback_) \
F(SuspendState, error_callback_) \
F(WeakProperty, key_) \
F(WeakProperty, value_) \
F(WeakReference, target_) \
F(WeakReference, type_arguments_) \
F(Finalizer, detachments_) \
F(Finalizer, all_entries_) \
F(Finalizer, entries_collected_) \
F(Finalizer, callback_) \
F(Finalizer, type_arguments_) \
F(NativeFinalizer, detachments_) \
F(NativeFinalizer, all_entries_) \
F(NativeFinalizer, entries_collected_) \
F(NativeFinalizer, callback_) \
F(FinalizerEntry, value_) \
F(FinalizerEntry, detach_) \
F(FinalizerEntry, token_) \
F(FinalizerEntry, finalizer_) \
F(FinalizerEntry, next_) \
F(MirrorReference, referent_) \
F(UserTag, label_) \
F(Pointer, data_) \
F(Pointer, type_arguments_) \
F(DynamicLibrary, handle_) \
F(FfiTrampolineData, c_signature_) \
F(FfiTrampolineData, callback_target_) \
F(FfiTrampolineData, callback_exceptional_return_) \
F(TypedDataView, length_) \
F(TypedDataView, typed_data_) \
F(TypedDataView, offset_in_bytes_) \
F(FutureOr, type_arguments_)
#define AOT_CLASSES_AND_FIELDS(F)
#define AOT_NON_PRODUCT_CLASSES_AND_FIELDS(F) \
F(Class, direct_implementors_) \
F(Class, direct_subclasses_)
#define JIT_CLASSES_AND_FIELDS(F) \
F(Class, allocation_stub_) \
F(Class, dependent_code_) \
F(Class, direct_implementors_) \
F(Class, direct_subclasses_) \
F(Code, active_instructions_) \
F(Code, deopt_info_array_) \
F(Code, static_calls_target_table_) \
F(ICData, receivers_static_type_) \
F(Function, positional_parameter_names_) \
F(Function, unoptimized_code_) \
F(Field, type_test_cache_)
#define JIT_NON_PRODUCT_CLASSES_AND_FIELDS(F) \
F(Script, constant_coverage_)
#define NON_PRODUCT_CLASSES_AND_FIELDS(F) \
F(Class, user_name_) \
F(Code, return_address_metadata_) \
F(Code, var_descriptors_) \
F(Code, comments_) \
F(ReceivePort, debug_name_) \
F(ReceivePort, allocation_location_)
#define NON_HEADER_HASH_CLASSES_AND_FIELDS(F) F(String, hash_)
OffsetsTable::OffsetsTable(Zone* zone) : cached_offsets_(zone) {
for (const OffsetsTableEntry& entry : OffsetsTable::offsets_table()) {
cached_offsets_.Insert({{entry.class_id, entry.offset}, entry.field_name});
}
}
const char* OffsetsTable::FieldNameForOffset(intptr_t class_id,
intptr_t offset) {
return cached_offsets_.LookupValue({class_id, offset});
}
static MallocGrowableArray<OffsetsTable::OffsetsTableEntry> field_offsets_table;
const MallocGrowableArray<OffsetsTable::OffsetsTableEntry>&
OffsetsTable::offsets_table() {
ASSERT(field_offsets_table.length() > 0); // Initialized.
return field_offsets_table;
}
template <typename T>
bool is_compressed_pointer() {
return std::is_base_of<CompressedObjectPtr, T>::value;
}
void OffsetsTable::Init() {
static const OffsetsTable::OffsetsTableEntry table[] {
#define DEFINE_OFFSETS_TABLE_ENTRY(class_name, field_name) \
{class_name::kClassId, #field_name, \
is_compressed_pointer<decltype(Untagged##class_name::field_name)>(), \
OFFSET_OF(Untagged##class_name, field_name)},
COMMON_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#if !defined(PRODUCT)
NON_PRODUCT_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#endif
#if !defined(HASH_IN_OBJECT_HEADER)
NON_HEADER_HASH_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#endif
#if defined(DART_PRECOMPILED_RUNTIME)
AOT_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#if !defined(PRODUCT)
AOT_NON_PRODUCT_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#endif
#else
JIT_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#if !defined(PRODUCT)
JIT_NON_PRODUCT_CLASSES_AND_FIELDS(DEFINE_OFFSETS_TABLE_ENTRY)
#endif
#endif
#undef DEFINE_OFFSETS_TABLE_ENTRY
};
for (const OffsetsTableEntry& entry : table) {
field_offsets_table.Add(entry);
}
}
void OffsetsTable::Cleanup() {
field_offsets_table.Clear();
}
#endif
} // namespace dart