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Crash in createSelfType #9552

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rchiodo opened this issue Dec 5, 2024 · 0 comments

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addressed in next version bug

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rchiodo commented Dec 5, 2024

This was logged in our crash telemetry for Pylance:

TypeError: Cannot read properties of undefined (reading 'node')
at node pyright-internal/src/analyzer/typeEvaluator.ts:15457:28
at createSelfType pyright-internal/src/analyzer/typeEvaluator.ts:20597:35
at createSpecializedClassType pyright-internal/src/analyzer/typeEvaluator.ts:7532:35
at callback pyright-internal/src/analyzer/typeUtils.ts:765:8
at expandedType pyright-internal/src/analyzer/typeEvaluator.ts:4096:16
at expandSubtype pyright-internal/src/analyzer/typeEvaluator.ts:4153:12
at mapSubtypesExpandTypeVars pyright-internal/src/analyzer/typeEvaluator.ts:7370:21
at getTypeOfIndexWithBaseType pyright-internal/src/analyzer/typeEvaluator.ts:6771:32
at node pyright-internal/src/analyzer/typeEvaluator.ts:1124:49
at getTypeOfExpression pyright-internal/src/analyzer/typeEvaluator.ts:21106:15
at getTypeOfExpressionExpectingType pyright-internal/src/analyzer/typeEvaluator.ts:1893:31
at cb pyright-internal/src/common/cancellationUtils.ts:32:15
at invalidateTypeCacheIfCanceled pyright-internal/src/analyzer/typeEvaluator.ts:18311:15
at getTypeOfFunctionPredecorated pyright-internal/src/analyzer/typeEvaluator.ts:18170:27
at callback pyright-internal/src/common/timing.ts:40:19
at getTypeOfFunction pyright-internal/src/analyzer/checker.ts:411:51
at visitFunction pyright-internal/src/analyzer/parseTreeWalker.ts:451:28
at visit pyright-internal/src/analyzer/parseTreeWalker.ts:933:20
at visitNode pyright-internal/src/analyzer/parseTreeWalker.ts:915:36
at walk pyright-internal/src/analyzer/checker.ts:284:18
at walk pyright-internal/src/analyzer/checker.ts:2799:17
at _walkStatementsAndReportUnreachable pyright-internal/src/analyzer/checker.ts:293:13
at visitSuite pyright-internal/src/analyzer/parseTreeWalker.ts:544:28
at visit pyright-internal/src/analyzer/parseTreeWalker.ts:933:20
at visitNode pyright-internal/src/analyzer/parseTreeWalker.ts:915:36
at walk pyright-internal/src/analyzer/checker.ts:284:18
at walk pyright-internal/src/analyzer/checker.ts:318:13
at visitClass pyright-internal/src/analyzer/parseTreeWalker.ts:388:28
at visit pyright-internal/src/analyzer/parseTreeWalker.ts:933:20

rchiodo added the bug label

erictraut added a commit that referenced this issue


          Fixed a bug that results in a crash under certain circumstances when …

943a954

…`Self` is errantly specialized. This addresses #9552.

erictraut added the addressed in next version label

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