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Daco Harkes 8de00e2137 [vm] Introduce pragma vm:deeply-immutable 
This CL introduces a way to mark all instances of a class as deeply
immutable.

In order to statically verify that all instances of a deeply immutable
class are immutable, a deeply immutable classes must have the following
properties:

1. All instance fields must
   1. have a deeply immutable type,
   2. be final, and
   3. be non-late.
2. The class must be `final` or `sealed`. This ensures no
   non-deeply-immutable subtypes are added by external code.
3. All subtypes must be deeply immutable. This ensures 1.1 can be
   trusted.
4. The super type must be deeply immutable (except for Object).

Note that instances of some classes in the VM are deeply immutable
while their class cannot be marked immutable.

* SendPort, Capability, RegExp, and StackTrace are not `final` and
  can be implemented by external code.
* UnmodifiableTypedDataViews do not have a public type. (It was
  recently deprecated.)

See runtime/docs/deeply_immutable.md for more details.

Use case:

This enables attaching a `Dart_FinalizableHandle` to a deeply immutable
object and the deeply immutable object with other isolates in the same
isolate group.

(Note that `NativeFinalizer`s live in an isolate, and not an isolate
group. So this should currently _not_ be used with `NativeFinalizer`s.
See https://github.com/dart-lang/sdk/issues/55062 for making a
`NativeFinalizer.shared(` that would live in an isolate group instead
of in an isolate.)

Implementation details:

Before this CL, the `ImmutableBit` in the object header was only ever
set to true for predefined class ids (and for const objects). After
this CL, the bit can also be set to true for non const instances of
user-defined classes. The object allocation and initialization code has
been changed to deal with this new case. The immutability of a class is
saved in the class state bits. On object allocation and initialization
the immutability bit is read from the class for non-predefined class
ids.

TEST=runtime/tests/vm/dart/isolates/fast_object_copy2_test.dart
TEST=runtime/vm/isolate_reload_test.cc
TEST=tests/lib/isolate/deeply_immutable_*

Bug: https://github.com/dart-lang/sdk/issues/55120
Bug: https://github.com/dart-lang/sdk/issues/54885
Change-Id: Ib97fe589cb4f81673cb928c93e3093838d82132d
Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try
Cq-Include-Trybots: dart-internal/g3.dart-internal.try:g3-cbuild-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/354902
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2024-03-07 18:33:58 +00:00
..
abstract Migrate "a" directory language tests off @compile-error. 2023-04-20 20:50:39 +00:00
accessor_conflict
argument [analyzer] NOT_ENOUGH_POSITIONAL_ARGUMENTS 2022-10-11 17:56:11 +00:00
assert [dart2wasm] Emit code for assert initializers. 2023-01-05 00:23:40 +00:00
assign [analyzer] Issue 37238: Multiple errors for type mismatch assignments. 2023-05-19 16:27:58 +00:00
async Add test about "T derives the future type U" 2024-02-28 19:44:45 +00:00
async_nested
async_star [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
augmentation_libraries Augment. Update language/augmentation_libraries/class_augmentation_test 2024-02-27 01:54:00 +00:00
await [tests] Avoid small --optimization-counter-threshold in tests 2022-10-10 21:04:18 +00:00
bool [tests] Fix language/bool/has_environment_not_new 2023-11-28 12:50:05 +00:00
call [tests] Cleanup remnants of multi-test migration 2024-01-10 18:35:50 +00:00
canonicalize Spelling tests language 2022-12-19 16:30:06 +00:00
cascade Remove nbsp 2022-10-17 08:18:49 +00:00
class Remove left-over patch declarations for List constructor. 2023-04-22 00:38:28 +00:00
class_modifiers Breaking changes for analyzer version 6.0.0 2023-06-16 16:31:27 +00:00
closure [dart2js] Generate parameter stubs during codegen. 2023-12-29 07:13:09 +00:00
compile_time_constant [analyzer] Separate exception and evaluation errors in the const evaluator. 2023-08-22 18:21:10 +00:00
const [analyzer] Report cycles in constant constructors. 2023-08-29 19:02:38 +00:00
const_functions [cfe] Error on variable use before declaration, not on declaration 2023-10-03 10:51:15 +00:00
constants_2018 [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
constructor Reland "[dart2wasm] Replace struct.new_default with struct.new for object allocation." 2023-09-26 10:07:42 +00:00
control_flow_collections [tests] update await_for_test to test behavior variations. 2024-02-14 21:43:47 +00:00
covariant [expect] introduce Expect.throwsWhen and Expect.throwsTypeErrorWhen 2024-02-14 20:12:05 +00:00
covariant_override Clean up a number of 2.19 opt outs in language tests. 2023-03-17 16:17:50 +00:00
deferred [tests] Delete inert tests from multi-test migration 2023-12-28 17:16:09 +00:00
double [tests] update to use variations.dart#jsNumbers 2024-02-08 17:00:59 +00:00
double_literals
dynamic [dart2wasm] Fix invocation forwarder named argument adjustment 2023-01-10 13:37:33 +00:00
enum [flip-modifiers] opt out from class modifiers some failing front end language tests 2023-03-02 20:40:20 +00:00
exception Migrate "e" and "f" directory language tests off @compile-error. 2023-04-20 20:49:17 +00:00
export Migrate "e" and "f" directory language tests off @compile-error. 2023-04-20 20:49:17 +00:00
extension_methods Fix context for the RHS of the invocation of an extension setter to match analyzer. 2024-02-21 15:10:18 +00:00
extension_type Retire 3.3 experiments in the 3.4 release. 2024-03-04 16:09:31 +00:00
external_abstract_fields
factory Fix incorrect file reference in license headers 2023-09-18 06:44:08 +00:00
field Migrate "e" and "f" directory language tests off @compile-error. 2023-04-20 20:49:17 +00:00
final [analyzer] Issue 53927: Disallow final fields to be used in a const context. 2023-11-02 20:46:20 +00:00
function [expect] introduce Expect.throwsWhen and Expect.throwsTypeErrorWhen 2024-02-14 20:12:05 +00:00
function_subtype [expect] introduce Expect.throwsWhen and Expect.throwsTypeErrorWhen 2024-02-14 20:12:05 +00:00
function_type [tests] update function tests to use Expect.throwsWhen 2024-02-15 00:45:52 +00:00
generic [web-fixit] Make generic/mixin language tests minification-agnostic 2023-11-29 21:40:21 +00:00
generic_methods Fix tearoff of methods from promotable variables. 2023-04-03 19:39:59 +00:00
getter Migrate "g" - "i" directory language tests off @compile-error. 2023-04-19 22:09:18 +00:00
identifier [cfe] Remove extra conditions on await-for in non-async body check 2023-05-09 06:56:44 +00:00
identity [tests] update to use variations.dart#jsNumbers 2024-02-08 17:00:59 +00:00
if
if_null Issue 48004. Report when null-aware operator is used on type. 2022-05-29 19:03:15 +00:00
implicit_creation [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
implicit_downcast_during Reland "Flow analysis: promote to non-nullable on initialization" 2020-10-07 13:14:55 +00:00
import [tests] Update two conditional import tests 2023-11-28 14:27:39 +00:00
inference Migrate "g" - "i" directory language tests off @compile-error. 2023-04-19 22:09:18 +00:00
inference_update_1 Retire experiment flags introduced in 2.18. 2022-12-15 13:18:50 +00:00
inference_update_2 Retire 3.3 experiments in the 3.4 release. 2024-03-04 16:09:31 +00:00
inference_update_3 Implement context-aware type analysis for conditional-like expressions. 2024-03-04 17:19:00 +00:00
initializing_formal Migrate "g" - "i" directory language tests off @compile-error. 2023-04-19 22:09:18 +00:00
instance [cfe] Add UnresolvedKind for fine grained unresolved reporting 2021-08-25 09:51:54 +00:00
instantiate_to_bound master branch to main 2021-09-15 06:22:23 +00:00
interceptor
interface Remove left-over patch declarations for List constructor. 2023-04-22 00:38:28 +00:00
invalid_returns Remove language tests that opt out of null safety 2024-01-23 18:23:32 +00:00
is [tests] Delete inert tests from multi-test migration 2023-12-28 17:16:09 +00:00
label [parser] Add beforeSynthetic to SyntheticStringToken 2021-08-30 11:56:30 +00:00
lazy Spelling tests 2023-01-19 16:24:29 +00:00
least_upper_bound Correct 4 static type expectations in test 2023-11-27 10:38:31 +00:00
library Spelling tests language 2022-12-19 16:30:06 +00:00
list [parser] More specific error messages when recovering new/const/Map/Set/List with said literals 2021-03-25 13:27:03 +00:00
loop [cfe] Error on variable use before declaration, not on declaration 2023-10-03 10:51:15 +00:00
macros Macro. Update JsonSerializable to use throw instead of invalid code. 2024-02-26 18:22:47 +00:00
main [cfe] Support injected members in export scope 2023-05-24 09:21:20 +00:00
malbounded Migrate "l" and "m" directory language tests off @compile-error. 2023-04-20 17:51:42 +00:00
malformed Migrate "l" and "m" directory language tests off @compile-error. 2023-04-20 17:51:42 +00:00
map [dart2js] Better const Maps and Sets 2023-06-20 23:44:08 +00:00
metadata [analyzer] Report more specific diagnostic codes instead of INVALID_CONSTANT. 2023-08-29 22:36:02 +00:00
method [analyzer] Change the const evaluation result of variables to be Constant. 2023-09-22 16:13:10 +00:00
mixin [web-fixit] Make generic/mixin language tests minification-agnostic 2023-11-29 21:40:21 +00:00
mixin_constructor_forwarding Set tests that have mixin errors as 2.19. 2023-03-01 15:03:39 +00:00
mixin_declaration Migrate "l" and "m" directory language tests off @compile-error. 2023-04-20 17:51:42 +00:00
mixin_legacy [web-fixit] Make generic/mixin language tests minification-agnostic 2023-11-29 21:40:21 +00:00
named_arguments_anywhere [analyzer] Initial refactor of _InstanceCreationEvaluator to return Constant value. 2023-07-25 19:23:02 +00:00
new [cfe] Add UnresolvedKind for fine grained unresolved reporting 2021-08-25 09:51:54 +00:00
nnbd [analyzer][cfe] Expand TypeAnalyzerOperations. Part 1 2024-02-29 08:14:20 +00:00
no_such_method Migrate "n" through "p" directory language tests off @compile-error. 2023-04-20 17:56:18 +00:00
nonfunction_type_aliases Remove language tests that opt out of null safety 2024-01-23 18:23:32 +00:00
nosuchmethod_forwarding Remove uses of : as default value separator in some tests/ directories. 2022-09-07 14:49:17 +00:00
null [vm] Introduce pragma vm:deeply-immutable 2024-03-07 18:33:58 +00:00
null_aware Flag additional code as unreachable due to types Null and Never. 2022-08-22 16:50:19 +00:00
number [tests] update to use variations.dart#jsNumbers 2024-02-08 17:00:59 +00:00
operator [tests] update to use variations.dart#jsNumbers 2024-02-08 17:00:59 +00:00
optimize Migrate "n" through "p" directory language tests off @compile-error. 2023-04-20 17:56:18 +00:00
override
parameter [cfe] Correct PrivateNamedParameter problem message 2023-12-01 17:32:48 +00:00
part [cfe] Include import paths in error for unavailable dart: libraries 2022-11-08 14:54:17 +00:00
patterns Fix pattern context type schema for cast patterns. 2024-01-31 17:23:20 +00:00
prefix [cfe] Add UnresolvedKind for fine grained unresolved reporting 2021-08-25 09:51:54 +00:00
private pre-emptively fix some tests for class modifiers flag flip 2023-03-01 20:11:25 +00:00
propagate
records Fix analyzer handling of record literal type inference. 2024-02-20 20:21:48 +00:00
redirecting Remove uses of : as default value separator in some tests/ directories. 2022-09-07 14:49:17 +00:00
reg_exp
regress [cfe] Infer mixins by directly solving for equality 2024-01-08 11:42:39 +00:00
resolution
return Migrate "r" directory language tests off @compile-error. 2023-04-19 23:35:16 +00:00
rewrite
scaling [vm] Increase supported range of TypeParameters to 16 bits. 2022-12-14 23:34:18 +00:00
script Migrate "s" directory language tests off @compile-error. 2023-04-20 17:59:44 +00:00
sealed_class Breaking changes for analyzer version 6.0.0 2023-06-16 16:31:27 +00:00
set_literals [tests] Add const-big-set-literal test 2020-10-20 11:07:23 +00:00
setter Migrate "s" directory language tests off @compile-error. 2023-04-20 17:59:44 +00:00
spread_collections Make the type schema for null-aware spread operations consistent. 2024-02-13 22:25:41 +00:00
stack_trace [gardening] Fix recent change to language/stack_trace/* tests in CSP mode 2024-01-31 14:38:43 +00:00
static Migrate "s" directory language tests off @compile-error. 2023-04-20 17:59:44 +00:00
string Remove language tests that opt out of null safety 2024-01-23 18:23:32 +00:00
subtyping_static [dart2wasm] Fix isSubtype case of type parameter vs FutureOr 2023-08-11 09:08:32 +00:00
super Migrate "s" directory language tests off @compile-error. 2023-04-20 17:59:44 +00:00
superinterface_variance Set tests that have mixin errors as 2.19. 2023-03-01 15:03:39 +00:00
switch [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
symbol
sync_star Test for yield* of Iterable with throwing get:iterator 2023-04-14 22:04:28 +00:00
syntax [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
test_runner [test] Check all local files for error strings. 2024-02-20 09:31:21 +00:00
this [expect] introduce Expect.throwsWhen and Expect.throwsTypeErrorWhen 2024-02-14 20:12:05 +00:00
top_level Migrate "t" directory language tests off @compile-error. 2023-04-20 19:55:31 +00:00
type [analyzer] Separate exception and evaluation errors in the const evaluator. 2023-08-22 18:21:10 +00:00
type_object Remove language tests that opt out of null safety 2024-01-23 18:23:32 +00:00
type_promotion
type_variable Migrate "t" directory language tests off @compile-error. 2023-04-20 19:55:31 +00:00
typedef Migrate "t" directory language tests off @compile-error. 2023-04-20 19:55:31 +00:00
unsorted Issue 54485. Report error when external constructor has a field formal parameter. 2024-01-03 19:59:53 +00:00
value_class [cfe] Add Jenkins SMI hashcode combiner 2020-09-07 12:36:13 +00:00
variable [cfe] Error on variable use before declaration, not on declaration 2023-10-03 10:51:15 +00:00
variance [ddc] Delete variance tests for old DDC types 2024-02-14 22:29:33 +00:00
vm [vm/compiler] Catch non-Smi mask in 32-bit AOT ~/ call replacement. 2023-10-19 12:30:06 +00:00
void Update void usage test to new test runner expectations 2024-02-28 18:30:20 +00:00
why_not_promoted Allow "field promotion" to apply to abstract getters. 2023-12-07 23:40:27 +00:00
await_type_error_test.dart
await_type_test.dart
dynamic_type_helper.dart
explicit_type_instantiation_parsing_test.dart Remove references to constructor-tearoff experiment. 2021-11-11 14:04:43 +00:00
language.status Skip test that hangs on reload bots. 2024-01-31 12:08:34 +00:00
language_analyzer.status [tests] Cleanup test with absent deferred library 2022-11-03 17:06:42 +00:00
language_dart2js.status [tests] increase timeout for long dart2js test. 2023-11-02 17:22:39 +00:00
language_dart2wasm.status [dart2wasm] New async* desugaring 2024-03-05 11:56:00 +00:00
language_dartdevc.status [tests] Mark closure/cycles_test as slow on chrome, skip on firefox. 2023-11-08 18:43:51 +00:00
language_kernel.status [test] Don't expect disassemble_test to crash. 2024-02-07 21:30:10 +00:00
language_precompiled.status [test] Remove ARM64-specific status entries. 2023-10-09 19:30:29 +00:00
language_spec_parser.status Spelling tests language 2022-12-19 16:30:06 +00:00
language_vm.status [test] Remove ARM64-specific status entries. 2023-10-09 19:30:29 +00:00
library1.dart
library2.dart
library10.dart
library11.dart
library12.dart
OWNERS Use OWNERS files to restrict editing of tests/language to language team. 2023-11-16 18:18:00 +00:00
record_literal_problems_test.dart [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
record_literal_test.dart [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
record_type_empty_problems_test.dart [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
record_type_problems_test.dart [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
record_type_test.dart [tests] Remove obsolete Dart 3.0 experiments from language tests 2023-06-15 08:26:27 +00:00
regress_54994_test.dart [dart2wasm] Fix incorrect elimination of type argument checks. 2024-02-23 14:16:01 +00:00
static_type_helper.dart inference-update-3: use unpromoted type as context for local variable assignments. 2023-12-07 23:30:06 +00:00
static_weak_reference_error_test.dart [dart2js] Static weak references to method tearoffs 2023-03-02 20:04:19 +00:00
static_weak_reference_function_apply_test.dart [dart2js] Static weak references to method tearoffs 2023-03-02 20:04:19 +00:00
static_weak_reference_test.dart [dart2js] Static weak references to method tearoffs 2023-03-02 20:04:19 +00:00
syntax_helper.dart Additional language tests for parsing behaviors around type arguments. 2021-05-18 14:06:13 +00:00