16450a027a
* Change the default type parameter constraint and default to unknown from {}
* Relax unknown checking outside of strictNullChecks a bit
* Increase strictness on index signatures with type `unknown` so inference doesnt change surprisingly
* Remove redundant switch
15 lines
430 B
TypeScript
15 lines
430 B
TypeScript
/// <reference path="fourslash.ts" />
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//// function f1(a: any): a is number {}
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//// function f2<T>(a: any): a is T {}
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//// function f3(a: any, ...b): a is number {}
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//// f1(/*1*/)
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//// f2(/*2*/)
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//// f3(/*3*/)
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verify.signatureHelp(
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{ marker: "1", text: "f1(a: any): a is number" },
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{ marker: "2", text: "f2(a: any): a is unknown" },
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{ marker: "3", text: "f3(a: any, ...b: any[]): a is number", isVariadic: true },
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)
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