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Ömer Ağacan c552af0a9e [dart2wasm] Minor refactoring and comments in variable declaration compiler 
Refactoring:

- Update the checks when updating a local for a captured variable to
  check whether `local` is null, instead of whether it's not updated.

  If the `local` is available then we know that it's not updated. It's
  more direct to check whether we've created a local for the variable or
  not.

- Add an assertion checking the the capture field and local for a
  variable can only differ in nullability.

Documentation:

- Document that context field for a captured local will always be
  nullable, to be able to allocate the context without dummy values.

- Document in a few places that `!capture.written` means the variable is
  captured but not updated, so they can be held in a local (instead of
  getting them from the context on every read).

Change-Id: I66048cb36f75e35ee3c479c41f2bbfca247a990f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/470981
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ömer Ağacan <omersa@google.com>
2026-01-07 03:38:06 -08:00
..
abstract
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
accessor_conflict
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argument
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
assert
[tests] Rewrite various tests to not depend on <obj>.runtimeType.toString()
2025-06-24 01:16:24 -07:00
assign
Reformat tests/language/assign/.
2024-12-13 10:52:25 -08:00
async
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
async_nested
Reformat tests/language/a*.
2024-12-20 02:39:21 -08:00
async_star
Reformat tests/language/a*.
2024-12-20 02:39:21 -08:00
augmentation_libraries
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await
[tfa] Narrow to promoted static type on VariableGet.
2025-10-24 09:31:25 -07:00
bool
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
call
[analyzer] Report error on the first unresolved identifier
2025-09-04 01:22:53 -07:00
canonicalize
[test] Don't rely on try-catch to prevent inlining.
2025-07-30 13:56:40 -07:00
cascade
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
class
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
class_modifiers
[cfe] Use LookupResult for constructor lookup
2025-07-29 04:41:21 -07:00
closure
[dart2wasm] Fix signature selection for direct closure invocation.
2025-12-11 00:32:20 -08:00
compile_time_constant
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
const
[cfe] [InternalNodes] Remove InitializerJudgment
2025-12-04 00:55:31 -08:00
const_functions
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
constants_2018
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
constructor
[cfe][InternalNodes] Move argument checks to inference visitor
2025-12-05 02:37:32 -08:00
control_flow_collections
[test_runner] Remove nnbd mode options.
2025-06-02 10:59:31 -07:00
covariant
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
covariant_override
Reformat tests/language/c*.
2024-12-12 15:50:08 -08:00
deferred
[dart2wasm] Fix access of constants under deferred load guard
2025-11-28 03:23:01 -08:00
dot_shorthands
[analyzer] Dot shorthands: Remove error when a constructor conflicts with a non-static member.
2025-12-11 09:29:41 -08:00
double
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
double_literals
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
dynamic
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
enum
Move check for setter formal parameters to AstBuilder.
2025-07-24 07:21:26 -07:00
exception
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
export
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
extension_methods
[cfe] Report extension access type parameter bounds before lowering
2025-09-01 03:59:59 -07:00
extension_type
DeCo. Build extension type primary constructors like regular ones.
2025-12-19 07:38:31 -08:00
external_abstract_fields
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
factory
Format tests/language/f*.
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field
Enable 'getter-setter-error' flag in 3.9
2025-05-26 08:08:31 -07:00
final
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
function
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
function_subtype
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
function_type
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
generic
[tests] Rewrite various tests to not depend on <obj>.runtimeType.toString()
2025-06-24 01:16:24 -07:00
generic_methods
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
getter
Move check for setter formal parameters to AstBuilder.
2025-07-24 07:21:26 -07:00
identifier
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
identity
Opt multitests out of formatting in language/.
2024-11-21 10:49:44 +00:00
if
Format tests/language/i*.
2025-02-05 08:36:21 -08:00
if_null
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
implicit_creation
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
implicit_downcast_during
Format tests/language/i*.
2025-02-05 08:36:21 -08:00
import
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
inference
[model] Adjust distance from top calculations in UP in Analyzer
2025-09-05 05:22:00 -07:00
inference_update_1
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
inference_update_2
[flow analysis] Allow non-cascaded field accesses to participate in field promotion.
2025-05-12 08:25:20 -07:00
inference_update_3
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
inference_update_4
[flow][tests] Language tests for issue 1721 - allow better promotions for final vars.
2024-10-16 17:54:39 +00:00
inference_using_bounds
[test] Remove noisy expectStaticType
2025-08-27 04:59:03 -07:00
initializing_formal
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
instance
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
instantiate_to_bound
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interceptor
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
interface
Rename 'declaring-constructors' to 'primary-constructors' experiment flag.
2025-12-01 13:54:52 -08:00
invalid_returns
Format tests/language/i*.
2025-02-05 08:36:21 -08:00
is
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
label
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
lazy
Reformat tests/language/f-l using the 3.8 style.
2025-04-29 07:37:05 -07:00
least_upper_bound
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
library
[vm,dyn_modules] Disable dart:mirrors in standalone VM when using interpreter
2025-09-29 11:04:13 -07:00
list
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
loop
[dart2js] Fix duplication of code after for..in loop containing a break.
2025-12-15 08:55:50 -08:00
main
Opt multitests out of formatting in language/.
2024-11-21 10:49:44 +00:00
malbounded
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
malformed
[analyzer] Report error on the first unresolved identifier
2025-09-04 01:22:53 -07:00
map
[model] Remove more nullability-related assignability error messages
2025-05-19 00:18:57 -07:00
metadata
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
method
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
mixin
[tests] Remove analyzer MIXIN_INHERITS_FROM_NOT_OBJECT from language/mixin* tests
2025-08-21 08:08:40 -07:00
mixin_constructor_forwarding
Format tests/language/m*.
2025-02-11 00:23:41 -08:00
mixin_declaration
Reformat tests/language/m-p using the 3.8 style.
2025-04-29 07:30:40 -07:00
mixin_legacy
[tests] Remove analyzer MIXIN_INHERITS_FROM_NOT_OBJECT from language/mixin* tests
2025-08-21 08:08:40 -07:00
named_arguments_anywhere
[cfe] Remove the need for TypeInferrer.constantContext
2025-09-24 01:18:32 -07:00
new
Remove some multitest runtime-tests.
2025-02-19 04:21:42 -08:00
nnbd
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
no_such_method
[tests] Rewrite various tests to not depend on <obj>.runtimeType.toString()
2025-06-24 01:16:24 -07:00
nonfunction_type_aliases
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
nosuchmethod_forwarding
[tests] Rewrite various tests to not depend on <obj>.runtimeType.toString()
2025-06-24 01:16:24 -07:00
null
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
null_aware
[cfe] Avoid lowering in Static/Super/PropertyIncDec
2025-08-27 02:00:02 -07:00
null_aware_elements
Retire and remove 3.9 experiment flags.
2025-09-09 04:50:35 -07:00
number
[CFE/Analyzer/parser] Fix crash upon double with separators and missing number after e
2025-06-27 02:29:33 -07:00
operator
[cfe] Remove inConstructorName
2025-11-14 03:01:16 -08:00
optimize
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
override
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
parameter
Add language tests for "Private Named Parameters".
2025-12-03 15:15:13 -08:00
part
[cfe] Report error on duplicate part
2025-09-30 06:52:53 -07:00
patterns
[cfe] Remove the need for TypeInferrer.constantContext
2025-09-24 01:18:32 -07:00
prefix
[analyzer] Report error on the first unresolved identifier
2025-09-04 01:22:53 -07:00
primary_constructors
DeCo. Fix typos in language/primary_constructors/type_inference/optional_parameter_test
2026-01-05 13:49:06 -08:00
private
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
private_named_parameters
[private named parameters] Update static error test expectations.
2025-12-04 14:05:15 -08:00
propagate
Format tests/language/p*.
2025-02-11 15:31:25 -08:00
records
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
redirecting
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
reg_exp
Reformat tests/language/r** using the 3.8 style.
2025-05-02 04:45:20 -07:00
regress
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
resolution
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return
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rewrite
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
scaling
Reformat tests/language/s** using 3.8 style.
2025-05-02 04:46:00 -07:00
script
Reformat tests/language/s** using 3.8 style.
2025-05-02 04:46:00 -07:00
sealed_class
[cfe] Use LookupResult for constructor lookup
2025-07-29 04:41:21 -07:00
set_literals
Reformat tests/language/s** using 3.8 style.
2025-05-02 04:46:00 -07:00
setter
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
sound_flow_analysis
Retire and remove 3.9 experiment flags.
2025-09-09 04:50:35 -07:00
spread_collections
Reformat tests/language/s** using 3.8 style.
2025-05-02 04:46:00 -07:00
stack_trace
Opt multitests out of formatting in language/.
2024-11-21 10:49:44 +00:00
static
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
string
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
subtyping_static
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super
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
superinterface_variance
Remove unnecessary leftover @dart=2.19 from tests.
2024-11-28 09:10:30 +00:00
switch
[dart2wasm] Fix nullable int switch handling.
2025-11-19 15:06:41 -08:00
symbol
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
sync_star
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
syntax
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
test_runner
[cfe] Remove tests using import augment
2025-03-04 00:53:03 -08:00
this
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
top_level
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
type
Reformat tests/language/t** using 3.8 style.
2025-05-02 04:28:39 -07:00
type_object
[tests] Rewrite various tests to not depend on <obj>.runtimeType.toString()
2025-06-24 01:16:24 -07:00
type_promotion
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
type_variable
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
typedef
Reformat tests/language/t** using 3.8 style.
2025-05-02 04:28:39 -07:00
unsorted
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
value_class
Reformat tests/language/v-z* using 3.8 style.
2025-05-02 04:14:03 -07:00
variable
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
variance
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
vm
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
void
[model] Report error on void arguments of dynamic types in Analyzer
2025-09-22 04:49:24 -07:00
why_not_promoted
[cfe] Create explicit internal ast nodes for extension access
2025-08-22 08:05:19 -07:00
wildcard_variables
[cfe] Update message for undefined access
2025-06-17 04:03:26 -07:00
await_type_error_test.dart
Reformat tests/language/a*.
2024-12-20 02:39:21 -08:00
await_type_test.dart
Collect all test-related files in package:expect.
2024-10-11 16:53:52 +00:00
covariant_field_implicit_setter_test.dart
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dynamic_type_helper.dart
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explicit_type_instantiation_parsing_test.dart
Enable 'dot-shorthands' feature flag for Dart 3.10
2025-08-18 12:38:35 -07:00
flutter_regession_151473_test.dart
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language_analyzer.status
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language_dart2js.status
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language_dart2wasm.status
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language_dartdevc.status
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language_kernel.status
[tests] Remove unnecessary status file suppressions for tests
2025-06-24 01:26:33 -07:00
language_precompiled.status
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language_spec_parser.status
Change language tests to avoid unintended syntax errors
2025-10-27 01:35:09 -07:00
language_vm.status
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language.status
[vm,dyn_modules] Disable dart:mirrors in standalone VM when using interpreter
2025-09-29 11:04:13 -07:00
library1.dart
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library2.dart
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library10.dart
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library11.dart
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library12.dart
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local_null_initialization.dart
[dart2wasm] Minor refactoring and comments in variable declaration compiler
2026-01-07 03:38:06 -08:00
OWNERS
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record_literal_problems_test.dart
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record_literal_test.dart
Reformat files in the top level of tests/language/.
2025-01-02 03:27:35 -08:00
record_type_empty_problems_test.dart
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record_type_problems_test.dart
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record_type_test.dart
Reformat files in the top level of tests/language/.
2025-01-02 03:27:35 -08:00
regress_54994_test.dart
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
regression_55741_test.dart
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regression_56129_test.dart
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static_type_helper.dart
Collect all test-related files in package:expect.
2024-10-11 16:53:52 +00:00
static_weak_reference_error_test.dart
Reformat files in the top level of tests/language/.
2025-01-02 03:27:35 -08:00
static_weak_reference_function_apply_test.dart
Reformat tests/language/a-e using 3.8 style.
2025-04-29 07:38:43 -07:00
static_weak_reference_test.dart
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syntax_helper.dart
Reformat files in the top level of tests/language/.
2025-01-02 03:27:35 -08:00