Commit Graph

49 Commits

Author SHA1 Message Date
Konstantin Shcheglov 4629bff7e9 Augment. Report extensionTypeAugmentationSpecifiesRepresentationField.
Add a syntactic diagnostic for extension type augmentations that declare
representation fields. Extension type augmentations may augment the
declaration, but they must not redeclare the representation.

Thread an explicit parser option through primary constructor parsing so
extension type augmentations can omit a representation without producing
the usual missing-primary-constructor diagnostics, while still reporting
an error when a representation is present.

Register the new diagnostic in the shared and analyzer generated
diagnostic tables and add it to fix status tracking.

Change-Id: I84815bb0669a76126564e590760e93096a3af046
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/505860
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
SLSA-Policy-Verified: SLSA Policy Verification Service <devtools-gerritcodereview-exitgate@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
2026-05-22 17:36:54 -07:00
Johnni Winther 01a26f9022 [parser][cfe][analyze][PrimaryConstructors] Error recovery for primary constructors on mixins and extensions
This adds error recovery for mixin and extension declarations with primary constructors. This avoids cascading errors when primary constructors are used with these declarations which do not support primary constructors.

Closes #63157

Change-Id: I17bfab4a7eabac1c75e7cfb580295dcf619c991d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/499180
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2026-05-01 01:50:43 -07:00
Johnni Winther 5b0def4a87 [parser][Augmentations] Remove support for macro class and import augment
These were part of the macros experiments which has been cancelled.

Change-Id: I14071bc8e86025f273a533c313a3194c8eae5190
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/495341
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2026-04-16 02:25:05 -07:00
Konstantin Shcheglov e7c6654312 Augment. Allow abstract top-level variables.
Permit `abstract` on top-level variable declarations when the
augmentations feature is enabled. Previously the parser always reported
`abstract` as extraneous at the top level, which rejected valid syntax
and dropped the modifier before later stages could see it.

Thread the abstract token through top-level field parsing, record it on
`TopLevelVariableDeclaration`, and pass it through the front-end
builders. Reorder the field callback arguments so `augment` precedes
`abstract`, matching the augmentation grammar for incomplete top-level
variables and keeping the parser, listener, and outline plumbing
consistent.

Change-Id: I680414a746b707d483e485702685c95f28a9c9ac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/494564
Reviewed-by: Samuel Rawlins <srawlins@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
2026-04-14 16:12:24 -07:00
Johnni Winther 24e1e1feea [parser][cfe][Augmentations] Remove support for augment super
This removes the remaining support for `augment super` in the parser, analyzer and CFE.

`augment super` will not be part of the augmentations feature.

Change-Id: Ie8a185bba067ab6ecf3b3229ecc20d5c284842bd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/493401
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2026-04-08 03:07:32 -07:00
Fedor Shcheglov 03f20472c4 Do not report missingFunctionBody when augmentation flag is set.
Update tests to only expect the flag on Dart version 3.5 and below, before augmentations were implemented.

Change-Id: I0b46392521701ec3846830a9adc04487c7a8541b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/491440
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
2026-04-01 11:22:35 -07:00
Fedor Shcheglov bc32b13ddc Report diagnostic error for mixin application class augmentation.
Change-Id: I2cffb0b7049180ba4d291c50663eb06c7dfbac92
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/489780
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
2026-03-27 07:22:55 -07:00
Johnni Winther beff8b11f2 [cfe][PrimaryConstructors] Avoid creating tear-off lowering for abstract classes
A flag that tells whether constructor is in an abstract class, enum or mixin was not correctly passed for primary constructors. This flag determines whether constructor tear-off lowerings are created for backends that use this, such dart2js and dartdevc.

The parser listener is updated to pass a DeclarationKind for primary constructors, similar to what is already done for regular constructors. The enable the CFE to pass the correct flag.

Change-Id: I114417795ae276dfeab9f10a0b0fcbcd2dbfc00b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/490541
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2026-03-26 00:57:59 -07:00
Paul Berry 50b4225636 [messages] Stop using withArgumentsOld, batch 31.
This is one of several planned batches of changes to transition the
front end (and related packages) away from the old `withArgumentsOld`
diagnostic reporting method, and to the new `withArguments`
method. The difference between the two is that `withArguments` has
named parameters rather than positional ones, so (a) it's less likely
for parameters to be mixed up, and (b) it's compatible with the
calling conventions used by analyzer diagnostics.

As part of this transition, I'm taking the opportunity to rename the
parameters themselves (since the names previously were restricted to a
very small set of possibilities based on type), and to document them
in `messages.yaml`. To avoid fatigue (both for myself and code
reviewers), I've chosen to break the change into many smaller batches.

The only changes in this CL that were manually written are those in
`messages.yaml`. The others were produced by running the standard
diagnostic message code generator, running the script
`use_new_with_arguments.dart`, and then regenerating front end parser
test expectations.

Change-Id: I6a6a696461f9184a42d646fab6a593bcb4abdf4a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/478000
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2026-02-03 14:17:32 -08:00
Johnni Winther 45679bcac9 [parser] Support new constructor syntax
This adds parser support of the new constructor syntax using `new` instead of the enclosing class name

Part of https://github.com/dart-lang/sdk/issues/61699

Change-Id: I3de50298e83f431c765a987435324b8c8931eef7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/462042
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2025-11-19 03:05:01 -08:00
Johnni Winther d46bd8cf58 [parser] Merge parser listener endX methods
This merges endX methods for non-top-level members into endMethod, endConstructor, endFactory and endFields.

These methods now have a DeclarationKind parameter that can be used to distinguish them.

Change-Id: I458d37a70b6c7839612f7199dad95f9a61e76e7a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/462120
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2025-11-17 04:50:52 -08:00
Johnni Winther a58eb47216 [parser] Support new factory constructor syntax
Part of https://github.com/dart-lang/sdk/issues/61699

Change-Id: I6afa9f4991d4b965a60d39e14618731a10a04a1f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/459820
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2025-11-07 00:45:41 -08:00
Johnni Winther be29db2621 [cfe] Update parser suites to use FolderOptions
This updates the parser suites to use the FolderOptions already used by other expectation tests. This aligns the support for configuration tests in particular wrt experimental flags.

As a consequence of this change, all parser suite enable patterns for parser. Since the test setup didn't use experimental flags previously, newly added tests didn't use the current default, which is with pattern support. Since we don't have any tests explicitly for non-pattern support, all tests are updated to support patterns as it at least aligns with the default for current and future code.

Change-Id: I80ee769b35e74a0d111135ca4690983872a63623
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/459741
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2025-11-06 03:43:55 -08:00
Johnni Winther 02c3d9c3f0 [parser] Support declaring parameters
This allows `var int a` in primary constructors when the declaring constructors feature is enabled.

Part of https://github.com/dart-lang/sdk/issues/61699

Change-Id: I486ad8aa3ddbe09451455b024b3aa9cfbaa9a5e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/456340
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2025-10-22 01:46:47 -07:00
Johnni Winther 49eb514005 [parser] Support primary constructor on classes, enums and extension types
This adds simple support for primary constructors in class, enum and extension type declarations. Declaring formals are not supported yet.

Change-Id: I2fb2cb3a819e38ec4ffe961da4713a871ac29a0c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/455081
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2025-10-17 01:52:11 -07:00
Paul Berry ff5962306a [front end] Make code... objects usable as error templates.
This is part of a series of CLs that will standardize CFE error
reporting to always use `codeFoo.withArguments(...)` when reporting
errors that take arguments and `codeFoo` when reporting errors that
don't take arguments, rather than `templateFoo.withArguments(...)`
when reporting errors that take arguments and `messageFoo` when
reporting errors that don't take arguments. This change will have two
advantages:

- It will lend greater consistency to the CFE codebase, by allowing
  the same `code...` objects to be used both to name error codes
  (e.g., in test expectations) and to report errors. This will allow
  everything associated with a certain error code to be found using a
  single invocation of "Find References" in the editor, rather than
  having to search separately for uses of the code and the message or
  template.

- It should hopefully make the experience of writing code that reports
  errors more pleasant, since it will no longer be necessary to look
  up an error to see whether it takes arguments before using it;
  instead, the developer will be able to type the name of the message
  `code...` declaration, and then use autocompletion to see whether
  `.withArguments(...)` is required.

In this CL, the code generator for error messages is changed so that
both `template...` and `code...` declarations have the static type
`Template` (and, indeed, refer to the same constant
object). Previously, `code...` declarations had the static type
`Code`, and referred to a constant object with runtime type
`Code`. This will allow uses of `template...` to be replaced with
`code...`. In follow-up CLs, the uses of `template...` will be changed
to `code...`, and the `template...` declarations will be removed.

Since the `toString` methods on `Template` and `Code` differ, I had to
make some changes to ID tests and parser tests, both of which depend
on the behavior of `toString`:

- For ID tests, I was able to preserve the existing test expectations
  by modifying the `errorsToText` function (in
  `pkg/front_end/lib/src/testing/id_testing_utils.dart`).

- For parser tests, I wasn't able to find an easy way to preserve the
  existing test expectations, so I updated the expectations to match
  the new behavior.

Change-Id: I8a461d451b06dd2f88b3e59f0cb2153711b09461
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/442731
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2025-08-06 06:37:31 -07:00
Jens Johansen 86b65842ed [parser] Manually inline 'isNextIdentifier'
pkg/analyzer/lib/src/dart/ast/ast.dart:

JIT (tokens per microsecond):
2.1064% +/- 1.6771% (0.44 +/- 0.35) (20.97 -> 21.42)

AOT (tokens per microsecond):
No change.

Benchmarker (AOT):
```
msec task-clock:u: -1.2559% +/- 0.6202% (-35.75 +/- 17.65) (2846.58 -> 2810.83)
cycles:u: -1.3051% +/- 0.6113% (-161347113.30 +/- 75579075.11) (12362747585.00 -> 12201400471.70)
instructions:u: -0.6245% +/- 0.0000% (-169931728.50 +/- 1390.09) (27212753414.40 -> 27042821685.90)
seconds time elapsed: -1.2465% +/- 0.6111% (-0.04 +/- 0.02) (2.85 -> 2.81)
seconds user: -1.3083% +/- 0.7709% (-0.04 +/- 0.02) (2.83 -> 2.79)
```


pkg/front_end/lib/src/type_inference/inference_visitor.dart:

JIT (tokens per microsecond):
No change.

AOT (tokens per microsecond):
No change.

Benchmarker (AOT):
```
instructions:u: -0.9284% +/- 0.0000% (-279155451.00 +/- 502.76) (30068900827.90 -> 29789745376.90)
```

Change-Id: I70eaae39d156f77e5e451a8592f6f3dab2da3d67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/439780
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2025-07-30 07:13:16 -07:00
Jens Johansen 752b760308 [parser] notEofOrValue -> notEofOrType - skip string comparison
A small one.

pkg/analyzer/lib/src/dart/ast/ast.dart:

JIT (tokens per microsecond):
1.7597% +/- 1.4621% (0.37 +/- 0.30) (20.79 -> 21.15)

AOT (tokens per microsecond):
2.2547% +/- 1.6761% (0.62 +/- 0.46) (27.67 -> 28.30)

Benchmarker (AOT):
```
msec task-clock:u: -2.4779% +/- 1.3546% (-73.29 +/- 40.07) (2957.87 -> 2884.58)
cycles:u: -2.6238% +/- 1.3918% (-337224094.10 +/- 178886541.74) (12852601263.80 -> 12515377169.70)
instructions:u: -0.9484% +/- 0.0000% (-260552753.00 +/- 375.88) (27473305680.40 -> 27212752927.40)
branch-misses:u: -8.7134% +/- 6.9328% (-3191115.20 +/- 2538992.37) (36623085.10 -> 33431969.90)
seconds time elapsed: -2.4691% +/- 1.3512% (-0.07 +/- 0.04) (2.96 -> 2.89)
seconds user: -2.4294% +/- 1.3675% (-0.07 +/- 0.04) (2.93 -> 2.86)
```


pkg/front_end/lib/src/type_inference/inference_visitor.dart:

JIT (tokens per microsecond):
No change.

AOT (tokens per microsecond):
No change.

Benchmarker (AOT):
```
msec task-clock:u: -4.3099% +/- 1.9546% (-136.28 +/- 61.81) (3162.10 -> 3025.81)
cycles:u: -4.3066% +/- 1.9530% (-592061704.80 +/- 268488936.68) (13747787475.20 -> 13155725770.40)
instructions:u: -0.5194% +/- 0.0000% (-156988901.90 +/- 1876.14) (30225890142.20 -> 30068901240.30)
branch-misses:u: -14.2999% +/- 7.5350% (-6167339.80 +/- 3249736.99) (43128654.50 -> 36961314.70)
seconds time elapsed: -4.3098% +/- 1.9527% (-0.14 +/- 0.06) (3.16 -> 3.03)
seconds user: -4.3252% +/- 1.9575% (-0.14 +/- 0.06) (3.14 -> 3.01)
```

Change-Id: Ib70398e337c482f7427debb6875e2c17ccc6bd0f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/439740
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2025-07-30 07:06:17 -07:00
Jens Johansen e30f60791a [parser] Don't use the next token as the end on handleSend
Change-Id: Ic4bacffab3fdd9d23bea9b1ecd0f2cfdecb82e2e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399060
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2024-12-05 15:10:34 +00:00
Johnni Winther cd236ece98 [parser] Add enclosingDeclarationName to beginMethod
This adds the enclosingDeclarationName to the beginMethod of the
parser listener.

This enables the removal BuilderFactory.currentTypeParameterScopeBuilder.

Change-Id: Ie2bec9432c20b8bdbd62a14e8a65c272179d4698
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/383182
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
2024-09-05 07:40:09 +00:00
Jens Johansen 5359af23a3 [parser] Add endToken on endSwitchExpressionCase, beginToken on endSwitchExpressionCase
Change-Id: I53c6bae47feb2d4570471a3b91c8e371838fcff5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/373245
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2024-06-27 05:47:18 +00:00
Jens Johansen 40dad48ede [parser] Add more tokens
Add
 * endToken to endBinaryExpression
 * endToken to handleEndingBinaryExpression
 * endToken to endConditionalExpression
 * beginToken (and rename to endToken) on handleExpressionStatement
 * rightSeparator to handleForLoopParts

Change-Id: I55d5a0e6c795b82d8f3480365e4cc3fbb59c65b5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372482
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
2024-06-24 08:12:41 +00:00
Jens Johansen fc67d31862 [parser] Listener calls should not be on the next (unrelated) token
When the parser sends events to the listener some events has a pair of
parameters, `beginToken` and `endToken`. Most of these are constructed
in such a way that the `beginToken` is the first token and the
`endToken` is the last token in that construct. This is for instance the
case with `endClassDeclaration`.
It was, however, not the case for `endMetadata` where `endToken` instead
was the next token *not* in the metadata.

In this CL I've found a changed the following to point to the last token
in the construct instead of the next token not in the construct and
renamed the parameter where it made sense:

* `endAssert` --- and renamed `semicolonToken` (which only pointed to
  a semicolon for statements) to `endToken`.
* `endAwaitExpression`
* `endConstLiteral` --- and renamed `token` to `endToken`
* `endConstructorReference`
* `endFieldInitializer` --- and renamed `token` to `endToken`
* `endForIn`
* `endForInBody` --- and renamed `token` to `endToken`
* `endForStatement`
* `endForStatementBody` --- and renamed `token` to `endToken`
* `endFunctionExpression` --- and renamed `token` to `endToken`
* `endInitializer` --- and renamed `token` to `endToken`
* `endInitializers`
* `endInvalidAwaitExpression`
* `endMetadata`
* `endSwitchCase`
* `endTopLevelDeclaration` --- and renamed `nextToken` to `endToken`
* `endWhileStatement`
* `endWhileStatementBody` --- and renamed `token` to `endToken`
* `handleNoConstructorReferenceContinuationAfterTypeArguments`

In the few places in listeners where these values were used I've mostly
updated to do e.g. `endToken.text!` to retain the current behavior.

Change-Id: I25495e160d1eec5c75bcf1313b512cd04bcb1533
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/364322
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2024-04-26 06:59:23 +00:00
Konstantin Shcheglov 5f6daed1e1 Augment. Parse 'augmentKeyword' for top-level variables.
Change-Id: If8f0cb6fc1af77fb91774952931db5da214142e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/354520
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2024-02-27 16:48:18 +00:00
Johnni Winther 1683fd5c16 [_fe_analyzer_shared] Ensure beginToken on class, enum, mixin, extension and extension type
This passes the first token of these top level declaration directly
to the endX listener method.

In the CFE this is used to ensure that can handle the new modifiers in
the textual outline. Furthermore, support for extension types is added
and having an "unknown chunk" now results in an error. The latter should
help us keep the textual outline up-to-date wrt new features.

Change-Id: I813d6162b6cba0a2bf550ed33a6091abf9bf49f8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324702
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2023-09-15 13:01:10 +00:00
Johnni Winther b745fa8923 [cfe] Avoid "Instance of " in parser intertwined test expectations
Change-Id: I7d7b1c9a001c43ec160d26c478bd71b41505f273
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/323361
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2023-09-04 13:06:29 +00:00
Johnni Winther b1594fa130 [parser] Handle invalid extension type header in error recovery
This expands the existing recovery for class headers to handle
invalid, out-of-order, and duplicate clauses in extension type
declaration headers.

Change-Id: I7b33b91cc718e4c0673137121b8d083fa0ef1562
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/321900
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2023-08-24 11:20:18 +00:00
Johnni Winther 29003657e2 [parser] Remove support for 'inline class' syntax
+ removes tests using 'inline class' syntax or replace them with
  extension type syntax.

TEST=existing

Change-Id: Ic98178c4df9a1585ad0167cfd8847caa7b771e3e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/321120
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2023-08-22 11:26:54 +00:00
Paul Berry 8aa48712be Patterns parsing: recover from patternVariableDeclaration non-statement.
Previously, if a pattern variable declaration appeared outside of a
function or method, the parser would get very confused.  Now it
recognizes the situation, issues a comprehensible error message, and
replaces the pattern with a synthetic identifier token so that the
analyzer AST is somewhat sensible.

Fixes #51322.

Bug: https://github.com/dart-lang/sdk/issues/51322
Change-Id: Ica5f060cb483a39c4e50942d639939b1fab40bea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/293087
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
2023-04-04 14:55:00 +00:00
Kallen Tu f7bc72fce6 [analyzer/cfe] Remove interface mixin, final mixin and sealed mixin.
Added error messages for when users try to use invalid mixins + a language test that tests that (and tests in each of the front ends).

Removed the tokens from the parser listeners.

Removed all behaviours and error reporting related to these invalid mixins.

Change-Id: I558595826dae7e2c176bd1929e97caa2335c167c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/290614
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Kallen Tu <kallentu@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2023-03-30 11:56:08 +00:00
Konstantin Shcheglov 67e7c96962 Fix parser to use correct begin token, to get documentation comments from it.
Change-Id: I9505353c9c6c00082e588aced34e8151c7ab22b7
Bug: https://github.com/dart-lang/sdk/issues/51447
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284441
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
2023-02-22 17:03:38 +00:00
Johnni Winther d4a73e3b82 [cfe] Report errors on invalid const patterns with explicit 'const'.
Change-Id: I4f5994fd1f0d5e5289684e0da2f03720706f6d28
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/281840
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2023-02-15 10:34:28 +00:00
Johnni Winther d89ae3c2c6 [parser] Report error on invalid const patterns
This handles the restriction imposed on the expression occurring
within a constant pattern.

Change-Id: I946d85f908609340a61e060c6bdbee143666fd91
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/280460
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2023-02-09 12:43:31 +00:00
Kallen Tu ca974e5c4f [analyzer/cfe] Reland: Parse final class modifier.
Reland same files as https://dart-review.googlesource.com/c/sdk/+/278090
The only major change is parser_impl.dart parsing changes for 'final'

This change should allow 'final' for classes and mixins and maintain prior final behaviour for other constructs such as enums, typedefs, or the breaking line which was 'final library = ...;'

Change-Id: I3d84fc47479f39df6d5b0dcbe8f92d1fb78a826a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/279076
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Kallen Tu <kallentu@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2023-01-19 16:08:28 +00:00
Kallen Tu ed1157acc4 Revert "[analyzer/cfe] Parse final class modifier."
This reverts commit 2f1372b460.

Reason for revert: Breaks the build. Unsure if there are other affected failures.

Original change's description:
> [analyzer/cfe] Parse final class modifier.
>
> Change-Id: Ia554c4f8f9617cc883a472eeb819aab2fd849077
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278090
> Reviewed-by: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
> Commit-Queue: Kallen Tu <kallentu@google.com>

TBR=scheglov@google.com,johnniwinther@google.com,kallentu@google.com,dart-scoped@luci-project-accounts.iam.gserviceaccount.com

Change-Id: I5dd74202bd46d69b7261d6d30d8cf3b1a40dbc99
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/279040
Reviewed-by: Jake Macdonald <jakemac@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2023-01-13 21:04:01 +00:00
Kallen Tu 2f1372b460 [analyzer/cfe] Parse final class modifier.
Change-Id: Ia554c4f8f9617cc883a472eeb819aab2fd849077
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278090
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Kallen Tu <kallentu@google.com>
2023-01-13 19:16:20 +00:00
Kallen Tu 4aaf1a2cb1 [analyzer/cfe] Parse base and interface class modifiers
Change-Id: I52f8ac53ec504b4c1d07c04744b4b079a1163dfd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/277721
Commit-Queue: Kallen Tu <kallentu@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2023-01-12 18:47:39 +00:00
Kallen Tu 120bfdc076 [analyzer/cfe] Parse 'mixin class' behind sealed flag.
Allow 'mixin class' modifier which allows a class to be used as a mixin.
https://github.com/dart-lang/language/blob/master/working/base-interface-final/feature-specification.md

Change-Id: I6b4dac75f2ff09b7ef833c5e015b1baf7fa3883b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/275144
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Kallen Tu <kallentu@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2022-12-14 15:41:58 +00:00
Paul Berry 599911d197 Add parser support for for (var pattern = expression; ...; ...)
Bug: https://github.com/dart-lang/sdk/issues/50035
Change-Id: I5f07b848ba06be403e56538a4cc64f6de51bd668
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/273005
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
2022-12-01 21:49:47 +00:00
Paul Berry 9d0bca98e9 Rework computation of precedence for patterns.
Previously, we boosted the precedence of `as` inside patterns, to make
it higher than `|` and `&`.  Now, we reduce the precedence of `|` and
`&` to match that of `||` and `&&`.

The new approach should make it easier to transition to using `||` and
`&&` in patterns.

Bug: https://github.com/dart-lang/language/issues/2501
Change-Id: I6658484860ef809bc9029fa75747fdd7ce986836
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/272700
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2022-11-30 05:12:47 +00:00
Kallen Tu e7c0280487 [analyzer/cfe] Add support for sealed mixins and class type aliases.
Change-Id: I1b875f9569ed09db73bda5fe33e723c8e8ed3b79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/270020
Commit-Queue: Kallen Tu <kallentu@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2022-11-18 19:09:40 +00:00
Kallen Tu 835317d7da [cfe] Add initial parser support for sealed classes.
Basic support for the `sealed` keyword and added a few tests.

Change-Id: I5adedda22b1e8ce6d4b61136ad8e6d38bdf05043
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/268366
Commit-Queue: Kallen Tu <kallentu@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2022-11-09 17:39:59 +00:00
Johnni Winther 5baa4af7d8 [analyzer,cfe] Add 'views' feature and support for 'view class'
This adds the 'views' feature flag together with parser support
for 'view class'. If the feature is not enabled, an error is reported.

TEST=pkg/front_end/parser_testcases/views/...

Change-Id: I813ac86a0e7de9f0a5729c6d7ae35b82d1258ae5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/265780
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: William Hesse <whesse@google.com>
2022-11-02 11:09:59 +00:00
Paul Berry 9eb5544ec1 Parser: split some pattern/expression parsing logic.
This change restores `parseParenthesizedExpressionOrRecordLiteral`,
`parseArguments`, and `parseArgumentsRest` to the way they looked
prior to adding parser support, and instead adds new methods
`parseParenthesizedPatternOrRecordPattern` and
`parseExtractorPatternRest` that are specialized for patterns parsing.

Bug: https://github.com/dart-lang/sdk/issues/50035
Change-Id: I104e031a796ef7f217cd427e1a9ae94a04dafa7b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/261620
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2022-09-28 12:50:56 +00:00
Paul Berry d7e130e930 Patterns parsing: update expectations (no functional change).
For ease in code review, I've made all the changes that affect test
expectations files here, in a way that can easily be confirmed during
code review to have no functional effect on parser semantics.

This will be followed by a change that introduces parser support for
patterns, but doesn't affect test expectations.

Change-Id: I830600c1ae89447c7745bfae6fd91c379b6e05d7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/261022
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2022-09-27 12:56:54 +00:00
Johnni Winther 36607d877a [parser] Support 'augment super' as its own expression
This adds support for parsing `argument super` as its own expression
in augmentation libraries. This is not handled (correctly) by the
ast builders of analyzer and cfe yet.

Change-Id: Ibe67ad9daf56c82e8ec94f16d468e6b0d8f84d22
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/244922
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-05-20 09:36:52 +00:00
Johnni Winther 815ef172a8 [cfe] Add ParameterBuilder and FunctionTypeParameterBuilder
Adds ParameterBuilder as a common interfaces for FormalParameterBuilder
and the new class FunctionTypeParameterBuilder which is used for
parameters in FunctionTypeBuilder.

Change-Id: I5b7fb5a7d0b71547fe1b7a11261a5c783db99caa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/239313
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-03-31 13:04:34 +00:00
Johnni Winther fa05359f2f [cfe] Support augmentation library imports
This adds support for the `import augment <uri>` import syntax when
the 'macros' experiment is enabled.

The CL also include propagation of the augment modifier on class methods
which was missed in a previous CL.

Change-Id: Ic843e7e34559bcac728c810590f34b727b5f7090
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/234401
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-02-28 11:42:34 +00:00
Johnni Winther cd41e43c48 [parser] Support 'augment' as a built-in identifier for augmentation libraries
This changes the way the 'augment' modifier is handled in the parser.
Instead of being special cased for class declarations, it is now a
built-in identifier recognized only when the scanner is configured to
support augmentation libraries.

The change supports the used of the 'augment' modifier on not only
class declarations but also mixin and member declarations, as needed
for supporting macros.

Change-Id: I2679d198dea360900cfc478fae9c1660702a8a02
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/233887
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-02-23 16:17:42 +00:00