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Fix workspace initialization when workspaceFolders capability is enabled #11239
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The handleInitialized method was not calling updateSettingsForAllWorkspaces() when hasWorkspaceFoldersCapability was true, leaving workspaces with unresolved isInitialized.promise. This caused any code awaiting this promise to hang forever. Restructure the method to always call updateSettingsForAllWorkspaces() regardless of workspace folders capability.
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rchiodo
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Jan 23, 2026
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Thanks. LGTM
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Diff from mypy_primer, showing the effect of this PR on open source code: sympy (https://github.com/sympy/sympy)
+ .../projects/sympy/sympy/solvers/ode/ode.py:610:22 - error: Cannot access attribute "pop" for class "tuple[()]"
+ Attribute "pop" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:610:22 - error: Cannot access attribute "pop" for class "tuple[str, ...]"
+ Attribute "pop" is unknown (reportAttributeAccessIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1516:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1517:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1527:9 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1527:12 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1527:19 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1534:43 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1534:64 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1540:9 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1540:12 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1540:19 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1547:43 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1547:74 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1553:9 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1553:12 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1553:19 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1560:49 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:1560:70 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
- .../projects/sympy/sympy/solvers/ode/ode.py:1691:36 - error: Cannot access attribute "lhs" for class "Expr"
- Attribute "lhs" is unknown (reportAttributeAccessIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1691:55 - error: Cannot access attribute "rhs" for class "Expr"
- Attribute "rhs" is unknown (reportAttributeAccessIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1692:36 - error: Cannot access attribute "lhs" for class "Expr"
- Attribute "lhs" is unknown (reportAttributeAccessIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1693:17 - error: No overloads for "__setitem__" match the provided arguments (reportCallIssue)
- .../projects/sympy/sympy/solvers/ode/ode.py:1693:17 - error: Argument of type "Equality | BooleanFalse | BooleanTrue | Unknown | Expr" cannot be assigned to parameter "value" of type "Equality | BooleanFalse | BooleanTrue" in function "__setitem__"
- Type "Equality | BooleanFalse | BooleanTrue | Unknown | Expr" is not assignable to type "Equality | BooleanFalse | BooleanTrue"
- Type "Expr" is not assignable to type "Equality | BooleanFalse | BooleanTrue"
- "Expr" is not assignable to "Equality"
- "Expr" is not assignable to "BooleanFalse"
- "Expr" is not assignable to "BooleanTrue" (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3380:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3380:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3381:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3381:38 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3382:14 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3383:14 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3384:14 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3396:50 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3397:50 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3398:50 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3438:5 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3438:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3438:14 - error: Argument of type "Unknown | dict[Unknown, Unknown] | None" cannot be assigned to parameter "m" of type "Iterable[tuple[str, Unknown]]" in function "update"
+ Type "Unknown | dict[Unknown, Unknown] | None" is not assignable to type "Iterable[tuple[str, Unknown]]"
+ "None" is incompatible with protocol "Iterable[tuple[str, Unknown]]"
+ "__iter__" is not present (reportArgumentType)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3439:18 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3439:43 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:9 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:16 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:24 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3440:31 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:9 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:15 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:23 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3441:30 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3442:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3442:46 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3442:54 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3443:9 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3443:19 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3443:29 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3444:10 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3445:10 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3446:10 - error: Object of type "None" is not subscriptable (reportOptionalSubscript)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3497:5 - error: No overloads for "update" match the provided arguments (reportCallIssue)
+ .../projects/sympy/sympy/solvers/ode/ode.py:3497:7 - error: "update" is not a known attribute of "None" (reportOptionalMemberAccess)
... (truncated 1253 lines) ...
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Summary
handleInitialized()to always callupdateSettingsForAllWorkspaces(), not just whenhasWorkspaceFoldersCapability=falseworkspaceFolderscapability enabledProblem
When
hasWorkspaceFoldersCapability=true,handleInitialized()never calledupdateSettingsForAllWorkspaces(), leaving workspaces created duringinitialize()with unresolvedisInitialized.promise. Any code awaiting this promise would hang forever.Solution
Restructure the method to:
dynamicFeatures.register()andupdateSettingsForAllWorkspaces()Test plan
Initialize with workspace folder supportverifies hover requests work after initialization withworkspaceFolders=trueInitialize without workspace folder supportstill passes