tests/cases/conformance/jsdoc/declarations/index.js(4,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(6,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(10,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(31,11): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(33,10): error TS18043: Types cannot appear in export declarations in JavaScript files.
tests/cases/conformance/jsdoc/declarations/index.js(35,11): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(37,10): error TS18043: Types cannot appear in export declarations in JavaScript files.
tests/cases/conformance/jsdoc/declarations/index.js(39,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(40,10): error TS18043: Types cannot appear in export declarations in JavaScript files.
tests/cases/conformance/jsdoc/declarations/index.js(42,10): error TS18043: Types cannot appear in export declarations in JavaScript files.
tests/cases/conformance/jsdoc/declarations/index.js(43,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(45,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(49,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(53,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(57,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(61,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(65,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(67,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(71,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(75,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(80,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(84,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(87,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(91,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(95,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(100,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(105,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(107,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(111,18): error TS8006: 'interface' declarations can only be used in TypeScript files.
tests/cases/conformance/jsdoc/declarations/index.js(115,18): error TS8006: 'interface' declarations can only be used in TypeScript files.


==== tests/cases/conformance/jsdoc/declarations/index.js (30 errors) ====
    // Pretty much all of this should be an error, (since interfaces are forbidden in js),
    // but we should be able to synthesize declarations from the symbols regardless
    
    export interface A {}
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    export interface B {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        cat: string;
    }
    
    export interface C<T, U> {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        field: T & U;
        optionalField?: T;
        readonly readonlyField: T & U;
        readonly readonlyOptionalField?: U;
        (): number;
        (x: T): U;
        <Q>(x: Q): T & Q;
    
        new (): string;
        new (x: T): U;
        new <Q>(x: Q): T & Q;
    
        method<Q = number>(): number;
        method<Q>(a: T & Q): Q & number;
        method(a?: number): number;
        method(...args: any[]): number;
    
        optMethod?(): number;
    }
    
    interface G {}
              ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    export { G };
             ~
!!! error TS18043: Types cannot appear in export declarations in JavaScript files.
    
    interface HH {}
              ~~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    export { HH as H };
             ~~
!!! error TS18043: Types cannot appear in export declarations in JavaScript files.
    
    export interface I {}
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    export { I as II };
             ~
!!! error TS18043: Types cannot appear in export declarations in JavaScript files.
    
    export { J as JJ };
             ~
!!! error TS18043: Types cannot appear in export declarations in JavaScript files.
    export interface J {}
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    export interface K extends I,J {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        x: string;
    }
    
    export interface L extends K {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        y: string;
    }
    
    export interface M<T> {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        field: T;
    }
    
    export interface N<U> extends M<U> {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        other: U;
    }
    
    export interface O {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: string;
    }
    
    export interface P extends O {}
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    export interface Q extends O {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: "ok";
    }
    
    export interface R extends O {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: number]: "ok";
    }
    
    export interface S extends O {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: "ok";
        [idx: number]: never;
    }
    
    export interface T {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: number]: string;
    }
    
    export interface U extends T {}
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    
    export interface V extends T {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: string;
    }
    
    export interface W extends T {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: number]: "ok";
    }
    
    export interface X extends T {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: string;
        [idx: number]: "ok";
    }
    
    export interface Y {
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: {x: number};
        [idx: number]: {x: number, y: number};
    }
    
    export interface Z extends Y {}
                     ~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
    
    export interface AA extends Y {
                     ~~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: {x: number, y: number};
    }
    
    export interface BB extends Y {
                     ~~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: number]: {x: 0, y: 0};
    }
    
    export interface CC extends Y {
                     ~~
!!! error TS8006: 'interface' declarations can only be used in TypeScript files.
        [idx: string]: {x: number, y: number};
        [idx: number]: {x: 0, y: 0};
    }