Typescript: Tak dapat membaca properti 'induk' dari yang tidak ditentukan di collectEnclosingScopes

Dibuat pada 21 Mar 2019 · 3Komentar · Sumber: microsoft/TypeScript

Versi TypeScript: 3.4.0-rc

Bug

Saat mengedit beberapa kode di VS Code, saya melihat kesalahan ini. Maaf belum ada langkah repo

  ERR TypeScript Server Error (3.4.0-rc)
Cannot read property 'parent' of undefined
TypeError: Cannot read property 'parent' of undefined
    at collectEnclosingScopes (tsserver.js:117195:127)
    at getPossibleExtractionsWorker (tsserver.js:117275:30)
    at getPossibleExtractions (tsserver.js:117232:26)
    at Object.getAvailableActions (tsserver.js:116745:35)
    at tsserver.js:111488:128
    at getIterator (tsserver.js:625:23)
    at Object.next (tsserver.js:620:35)
    at Object.arrayFrom (tsserver.js:1253:32)
    at Object.getApplicableRefactors (tsserver.js:111487:23)
    at Proxy.getApplicableRefactors (tsserver.js:121287:32)
    at IOSession.Session.getApplicableRefactors (tsserver.js:130013:53)
    at Session.handlers.ts.createMapFromTemplate._a.(anonymous function) (tsserver.js:128853:61)
    at tsserver.js:130237:88
    at IOSession.Session.executeWithRequestId (tsserver.js:130228:28)
    at IOSession.Session.executeCommand (tsserver.js:130237:33)
    at IOSession.Session.onMessage (tsserver.js:130259:35)
    at Interface.<anonymous> (tsserver.js:131556:27)
    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 (3.4.0-rc)

Bug

Sumber

mjbvz

Komentar yang paling membantu

Saya juga menerima kesalahan serupa:

Versi TypeScript : 3.7.1-rc , 3.7.2 , 3.7.3-insiders.20191123

Tidak ada kesalahan <=3.6.4

TypeError: Cannot read property 'parent' of undefined
    at Object.getDeclarationOfExpando (/<redacted>/node_modules/typescript/lib/tsc.js:8604:19)
    at getTypeOfFuncClassEnumModule (/<redacted>/node_modules/typescript/lib/tsc.js:32596:40)
    at getTypeOfSymbol (/<redacted>/node_modules/typescript/lib/tsc.js:32702:24)
    at getExternalModuleMember (/<redacted>/node_modules/typescript/lib/tsc.js:28512:64)
    at getTargetOfExportSpecifier (/<redacted>/node_modules/typescript/lib/tsc.js:28557:17)
    at getTargetOfAliasDeclaration (/<redacted>/node_modules/typescript/lib/tsc.js:28600:28)
    at resolveAlias (/<redacted>/node_modules/typescript/lib/tsc.js:28633:30)
    at resolveSymbol (/<redacted>/node_modules/typescript/lib/tsc.js:28623:67)
    at getSymbolIfSameReference (/<redacted>/node_modules/typescript/lib/tsc.js:29170:33)
    at /<redacted>/node_modules/typescript/lib/tsc.js:29164:21

morrisallison pada 23 Nov 2019

👍5

Semua 3 komentar

Satu-satunya tempat ini bisa terjadi dalam kode adalah di sini:

        while (true) {
            current = current.parent;
            // A function parameter's initializer is actually in the outer scope, not the function declaration
            if (current.kind === SyntaxKind.Parameter) {
                // Skip all the way to the outer scope of the function that declared this parameter
                current = findAncestor(current, parent => isFunctionLikeDeclaration(parent))!.parent;
            }

Saya menduga kami menemukan parameter di dalam JSDoc dekat tingkat atas dan kemudian mencoba berjalan ke deklarasi fungsi melampirkan, tetapi tidak menemukannya dan keluar.

findAncestor(...)! sangat mencurigakan dan alangkah baiknya untuk melarangnya ...

RyanCavanaugh pada 26 Mar 2019

Saya mendapat kesalahan serupa:

Versi: skrip ketikan 3.7.0-dev.20191017

ERROR in ./node_modules/hammerjs/hammer.js                                         
Module build failed (from ./node_modules/ts-loader/index.js):                       
TypeError: Cannot read property 'parent' of undefined                               
    at getOuterTypeParameters (/<redacted>/node_modules/typescript/lib/typescript.js:39886:29)                                   
    at getOuterTypeParametersOfClassOrInterface (/<redacted>/node_modules/typescript/lib/typescript.js:39944:20)
    at getDeclaredTypeOfClassOrInterface (/<redacted>/node_modules/typescript/lib/typescript.js:40217:43)
    at createAnonymousTypeNode (/<redacted>/node_modules/typescript/lib/typescript.js:36601:59)
    at typeToTypeNodeHelper (/<redacted>/node_modules/typescript/lib/typescript.js:36547:28)                                     
    at /<redacted>/node_modules/typescript/lib/typescript.js:36336:106
    at withContext (/<redacted>/node_modules/typescript/lib/typescript.js:36381:37)
    at Object.typeToTypeNode (/<redacted>/node_modules/typescript/lib/typescript.js:36336:28)
    at typeToString (/<redacted>/node_modules/typescript/lib/typescript.js:36303:40)                                             
    at reportNonexistentProperty (/<redacted>/node_modules/typescript/lib/typescript.js:54143:165)

marcusbuffett pada 23 Okt 2019

Saya juga menerima kesalahan serupa:

Versi TypeScript : 3.7.1-rc , 3.7.2 , 3.7.3-insiders.20191123

Tidak ada kesalahan <=3.6.4

TypeError: Cannot read property 'parent' of undefined
    at Object.getDeclarationOfExpando (/<redacted>/node_modules/typescript/lib/tsc.js:8604:19)
    at getTypeOfFuncClassEnumModule (/<redacted>/node_modules/typescript/lib/tsc.js:32596:40)
    at getTypeOfSymbol (/<redacted>/node_modules/typescript/lib/tsc.js:32702:24)
    at getExternalModuleMember (/<redacted>/node_modules/typescript/lib/tsc.js:28512:64)
    at getTargetOfExportSpecifier (/<redacted>/node_modules/typescript/lib/tsc.js:28557:17)
    at getTargetOfAliasDeclaration (/<redacted>/node_modules/typescript/lib/tsc.js:28600:28)
    at resolveAlias (/<redacted>/node_modules/typescript/lib/tsc.js:28633:30)
    at resolveSymbol (/<redacted>/node_modules/typescript/lib/tsc.js:28623:67)
    at getSymbolIfSameReference (/<redacted>/node_modules/typescript/lib/tsc.js:29170:33)
    at /<redacted>/node_modules/typescript/lib/tsc.js:29164:21

morrisallison pada 23 Nov 2019

👍5

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