Crash in Class Incorrectly Implements Interface codefix #29515
Description
TypeScript Version: 3.3.0-dev.20190118
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Code
Open this TS file in VS Code and make some random edits:
interface IFoo {
/**
* Does stuff
*
* @param x An argument
*/
bar(x): void
}
class Foo implements IFooBug
log.ts:173 ERR TypeScript Server Error (3.3.0-dev.20190118)
Error processing request. Cannot read property 'end' of undefined
TypeError: Cannot read property 'end' of undefined
at getClassOrObjectBraceEnds (tsserver.js:108892:81)
at ChangeTracker.getInsertNodeAtStartPrefixSuffix (tsserver.js:108622:84)
at ChangeTracker.insertNodeAtStartWorker (tsserver.js:108615:136)
at ChangeTracker.insertNodeAtClassStart (tsserver.js:108606:22)
at tsserver.js:111666:175
at outputMethod (tsserver.js:113648:21)
at addNewNodeForMemberSymbol (tsserver.js:113627:25)
at Object.createMissingMemberNodes (tsserver.js:113563:21)
at addMissingDeclarations (tsserver.js:111666:21)
at tsserver.js:111627:100
at Function.ChangeTracker.with (tsserver.js:108416:17)
at tsserver.js:111627:68
at Object.mapDefined (tsserver.js:601:30)
at Object.getCodeActions (tsserver.js:111626:27)
at tsserver.js:109402:121
at Object.flatMap (tsserver.js:504:25)
at Object.getFixes (tsserver.js:109402:23)
at tsserver.js:118606:35
at Object.flatMap (tsserver.js:504:25)
at Object.getCodeFixesAtPosition (tsserver.js:118604:23)
at IOSession.Session.getCodeFixes (tsserver.js:126757:64)
at Session.handlers.ts.createMapFromTemplate._a.(anonymous function) (tsserver.js:125562:61)
at tsserver.js:126926:88
at IOSession.Session.executeWithRequestId (tsserver.js:126917:28)
at IOSession.Session.executeCommand (tsserver.js:126926:33)
at IOSession.Session.onMessage (tsserver.js:126948:35)
at Interface.<anonymous> (tsserver.js:128209:27)
at Interface.emit (events.js:182:13)
at Interface._onLine (readline.js:290:10)
at Interface._normalWrite (readline.js:433:12)
at Socket.ondata (readline.js:149:10)
at Socket.emit (events.js:182:13)
at addChunk (_stream_readable.js:279:12)
at readableAddChunk (_stream_readable.js:264:11)
at Socket.Readable.push (_stream_readable.js:219:10)
at Pipe.onread (net.js:636:20): Error: TypeScript Server Error (3.3.0-dev.20190118)
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