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TypeError: Cannot read property 'kind' of undefined at getErrorSpanForNode

See original GitHub issue

There’s a PR open for this one.

Under some set of rituals and incantations I have not been able to replicate, tsc throws the following error:

There’s been several bugs open - and fixed - around this.

I could not replicate, it was easier to fix. The fix addresses a simple logical inconsistency where a safety check happened after it was necessary.

Issue Analytics

State:
Created 3 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

3reactions

threecommented, Oct 15, 2020

After some more testing typescript@next seems to handle the above case correctly,

$ ./node_modules/.bin/tsc --version
Version 4.1.0-dev.20201015
$ ./node_modules/.bin/tsc
test.js:1:1 - error TS8006: 'import type' declarations can only be used in TypeScript files.

1 import type { x } from 'y'
  ~~~~~~~~~~~~~~~~~~~~~~~~~~

Found 1 error.

0reactions

threecommented, Oct 15, 2020

I believe I’m having the same issue as you having to do with legacy flow types tripping up the compiler. Typescript seems to be tripping up on import type statements if they appear in js files. Not sure if the pr already fixed this but here’s a more contained test case if the Needs more Info tag still applies.

$ ./node_modules/.bin/tsc --version
Version 4.0.3

$ ./node_modules/.bin/tsc
/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:84774
                throw e;
                ^

TypeError: Cannot read property 'kind' of undefined
    at getErrorSpanForNode (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:10173:22)
    at Object.createDiagnosticForNodeInSourceFile (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:10124:20)
    at createDiagnosticForNode (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:85010:31)
    at walk (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:84876:50)
    at visitAllPossibleChildren (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:22063:31)
    at Object.forEachChildRecursively (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:22024:23)
    at /Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:84849:20
    at runWithCancellationToken (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:84767:24)
    at getJSSyntacticDiagnosticsForFile (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:84846:20)
    at getSyntacticDiagnosticsForFile (/Users/eric/tmp/tserror/node_modules/typescript/lib/tsc.js:84759:65)

tsconfig.json

{
    "compilerOptions": {
        "noEmit": true,
        "allowJs": true
    },

    "include": ["test.js"]
}

test.js

import type { x } from 'y'

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