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tests/cases/compiler/jsdocInTypeScript.ts(16,23): error TS2304: Cannot find name 'MyType'.
tests/cases/compiler/jsdocInTypeScript.ts(23,33): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.
tests/cases/compiler/jsdocInTypeScript.ts(25,3): error TS2345: Argument of type '1' is not assignable to parameter of type 'boolean'.
tests/cases/compiler/jsdocInTypeScript.ts(25,15): error TS2339: Property 'length' does not exist on type 'number'.
tests/cases/compiler/jsdocInTypeScript.ts(30,3): error TS2339: Property 'x' does not exist on type '{}'.
tests/cases/compiler/jsdocInTypeScript.ts(42,12): error TS2503: Cannot find namespace 'N'.
==== tests/cases/compiler/jsdocInTypeScript.ts (6 errors) ====
// JSDoc typedef tags are not bound TypeScript files.
/** @typedef {function} T */
declare const x: T;
class T {
prop: number;
}
x.prop;
// Just to be sure that @property has no impact either.
/**
* @typedef {Object} MyType
* @property {string} yes
*/
declare const myType: MyType; // should error, no such type
~~~~~~
!!! error TS2304: Cannot find name 'MyType'.
// @param type has no effect.
/**
* @param {number} x
* @returns string
*/
function f(x: boolean) { return x * 2; } // Should error
~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.
// Should fail, because it takes a boolean and returns a number
f(1); f(true).length;
~
!!! error TS2345: Argument of type '1' is not assignable to parameter of type 'boolean'.
~~~~~~
!!! error TS2339: Property 'length' does not exist on type 'number'.
// @type has no effect either.
/** @type {{ x?: number }} */
const z = {};
z.x = 1; // Error
~
!!! error TS2339: Property 'x' does not exist on type '{}'.
// @template tag should not interfere with constraint or default.
/** @template T */
interface I<T extends number = 0> {}
/** @template T */
function tem<T extends number>(t: T): I<T> { return {}; }
let i: I; // Should succeed thanks to type parameter default
/** @typedef {string} N.Str */
import M = N; // Error: @typedef does not create namespaces in TypeScript code.
~
!!! error TS2503: Cannot find namespace 'N'.
// Not legal JSDoc, but that shouldn't matter in TypeScript.
/**
* @type {{foo: (function(string, string): string)}}
*/
const obj = { foo: (a, b) => a + b };
/** @enum {string} */
var E = {};
E[""];
// make sure import types in JSDoc are not resolved
/** @type {import("should-not-be-resolved").Type} */
var v = import(String());
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