"Extract to function" fails with "Error: Debug Failure. False expression."

[OliverJAsh]

Bug Report

🔎 Search Terms

🕗 Version & Regression Information

• This is the behavior in every version I tried, and I reviewed the FAQ for entries about refactorings

⏯ Playground Link

N/A

💻 Code

interface UnionTypes<Record, TaggedRecord> {
    _Record: Record;
    _Union: TaggedRecord[keyof TaggedRecord];
}
declare type MultiValueRec = {
    [key: string]: {
        [tag: string]: any;
    };
};
declare function unionize<Record extends MultiValueRec>(
    record: Record,
): UnionTypes<
    Record,
    {
        [T in keyof Record]: Record[T];
    }
>;
declare const ofType: <T>() => T;

const ApplicationResponseOrPlaceholder = unionize({
    Response: ofType<{ data: {} }>(),
});
type ApplicationResponseOrPlaceholder =
    typeof ApplicationResponseOrPlaceholder._Union;

export const Application = ({
    responseOrPlaceholder,
    responseOption,
}: {
    responseOrPlaceholder: ApplicationResponseOrPlaceholder;
    responseOption:
        | typeof ApplicationResponseOrPlaceholder._Record['Response']
        | null;
}) => ({ responseOption, responseOrPlaceholder });

1. Select { responseOption, responseOrPlaceholder }
2. Run refactoring "extract to function in module scope"

🙁 Actual behavior

Refactoring fails

TS log contains error:

Info 133  [13:35:30.900] response:
    {"seq":0,"type":"response","command":"getApplicableRefactors","request_seq":24,"success":true,"body":[{"name":"Extract Symbol","description":"Extract function","actions":[{"description":"Extract to function in module scope","name":"function_scope_1","kind":"refactor.extract.function"}]}]}
Info 134  [13:35:30.902] request:
    {"seq":25,"type":"request","command":"getEditsForRefactor","arguments":{"file":"/Users/oliverash/Development/typescript-playground/src/main-ts.ts","startLine":34,"startOffset":8,"endLine":34,"endOffset":49,"refactor":"Extract Symbol","action":"function_scope_1"}}
Err 135   [13:35:30.917] Exception on executing command {"seq":25,"type":"request","command":"getEditsForRefactor","arguments":{"file":"/Users/oliverash/Development/typescript-playground/src/main-ts.ts","startLine":34,"startOffset":8,"endLine":34,"endOffset":49,"refactor":"Extract Symbol","action":"function_scope_1"}}:

    Debug Failure. False expression.

    Error: Debug Failure. False expression.
        at consumeTokenAndAdvanceScanner (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136986:30)
        at processChildNodes (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136956:33)
        at /Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136848:21
        at visitNodes (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:28819:24)
        at Object.forEachChild (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:28955:24)
        at processNode (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136845:20)
        at processChildNode (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136916:21)
        at /Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136846:21
        at visitNode (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:28814:24)
        at Object.forEachChild (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:28894:21)
        at processNode (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136845:20)
        at processChildNode (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136916:21)
        at processChildNodes (/Users/oliverash/Development/typescript-playground/node_modules/typescript/lib/tsserver.js:136963:48)

🙂 Expected behavior

The refactoring should work and create this function:

function newFunction(
    responseOption: { data: {} } | null,
    responseOrPlaceholder: { data: {} },
) {
    return { responseOption, responseOrPlaceholder };
}