60 lines
1.4 KiB
TypeScript
60 lines
1.4 KiB
TypeScript
// @lib: es2015
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// @traceResolution: true
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// JSDoc typedef tags are not bound TypeScript files.
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/** @typedef {function} T */
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declare const x: T;
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class T {
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prop: number;
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}
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x.prop;
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// Just to be sure that @property has no impact either.
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/**
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* @typedef {Object} MyType
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* @property {string} yes
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*/
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declare const myType: MyType; // should error, no such type
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// @param type has no effect.
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/**
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* @param {number} x
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* @returns string
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*/
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function f(x: boolean) { return x * 2; } // Should error
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// Should fail, because it takes a boolean and returns a number
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f(1); f(true).length;
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// @type has no effect either.
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/** @type {{ x?: number }} */
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const z = {};
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z.x = 1; // Error
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// @template tag should not interfere with constraint or default.
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/** @template T */
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interface I<T extends number = 0> {}
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/** @template T */
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function tem<T extends number>(t: T): I<T> { return {}; }
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let i: I; // Should succeed thanks to type parameter default
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/** @typedef {string} N.Str */
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import M = N; // Error: @typedef does not create namespaces in TypeScript code.
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// Not legal JSDoc, but that shouldn't matter in TypeScript.
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/**
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* @type {{foo: (function(string, string): string)}}
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*/
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const obj = { foo: (a, b) => a + b };
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/** @enum {string} */
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var E = {};
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E[""];
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// make sure import types in JSDoc are not resolved
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/** @type {import("should-not-be-resolved").Type} */
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var v = import(String());
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