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tests/cases/compiler/weakType.ts(15,13): error TS2560: Value of type '() => { timeout: number; }' has no properties in common with type 'Settings'. Did you mean to call it?
tests/cases/compiler/weakType.ts(16,13): error TS2560: Value of type '() => { timeout: number; }' has no properties in common with type 'Settings'. Did you mean to call it?
tests/cases/compiler/weakType.ts(17,13): error TS2560: Value of type 'CtorOnly' has no properties in common with type 'Settings'. Did you mean to call it?
tests/cases/compiler/weakType.ts(18,13): error TS2559: Type '12' has no properties in common with type 'Settings'.
tests/cases/compiler/weakType.ts(19,13): error TS2559: Type '"completely wrong"' has no properties in common with type 'Settings'.
tests/cases/compiler/weakType.ts(20,13): error TS2559: Type 'false' has no properties in common with type 'Settings'.
tests/cases/compiler/weakType.ts(37,18): error TS2559: Type '{ error?: number; }' has no properties in common with type 'ChangeOptions'.
tests/cases/compiler/weakType.ts(62,5): error TS2322: Type '{ properties: { wrong: string; }; }' is not assignable to type 'Weak & Spoiler'.
Types of property 'properties' are incompatible.
Type '{ wrong: string; }' has no properties in common with type '{ b?: number; }'.
==== tests/cases/compiler/weakType.ts (8 errors) ====
interface Settings {
timeout?: number;
onError?(): void;
}
function getDefaultSettings() {
return { timeout: 1000 };
}
interface CtorOnly {
new(s: string): { timeout: 1000 }
}
function doSomething(settings: Settings) { /* ... */ }
// forgot to call `getDefaultSettings`
doSomething(getDefaultSettings);
~~~~~~~~~~~~~~~~~~
!!! error TS2560: Value of type '() => { timeout: number; }' has no properties in common with type 'Settings'. Did you mean to call it?
!!! related TS6212 tests/cases/compiler/weakType.ts:15:13: Did you mean to call this expression?
doSomething(() => ({ timeout: 1000 }));
~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2560: Value of type '() => { timeout: number; }' has no properties in common with type 'Settings'. Did you mean to call it?
!!! related TS6212 tests/cases/compiler/weakType.ts:16:13: Did you mean to call this expression?
doSomething(null as CtorOnly);
~~~~~~~~~~~~~~~~
!!! error TS2560: Value of type 'CtorOnly' has no properties in common with type 'Settings'. Did you mean to call it?
!!! related TS6213 tests/cases/compiler/weakType.ts:17:13: Did you mean to use 'new' with this expression?
doSomething(12);
~~
!!! error TS2559: Type '12' has no properties in common with type 'Settings'.
doSomething('completely wrong');
~~~~~~~~~~~~~~~~~~
!!! error TS2559: Type '"completely wrong"' has no properties in common with type 'Settings'.
doSomething(false);
~~~~~
!!! error TS2559: Type 'false' has no properties in common with type 'Settings'.
// this is an oddly popular way of defining settings
// this example is from services/textChanges.ts
type ConfigurableStart = { useStart?: boolean }
type ConfigurableEnd = { useEnd?: boolean }
type ConfigurableStartEnd = ConfigurableStart & ConfigurableEnd
interface InsertOptions {
prefix?: string
suffix?: string
}
type ChangeOptions = ConfigurableStartEnd & InsertOptions;
function del(options: ConfigurableStartEnd = {},
error: { error?: number } = {}) {
let changes: ChangeOptions[];
changes.push(options);
changes.push(error);
~~~~~
!!! error TS2559: Type '{ error?: number; }' has no properties in common with type 'ChangeOptions'.
}
class K {
constructor(s: string) { }
}
// Ctor isn't a weak type because it has a construct signature
interface Ctor {
new (s: string): K
n?: number
}
let ctor: Ctor = K
type Spoiler = { nope?: string }
type Weak = {
a?: number
properties?: {
b?: number
}
}
declare let propertiesWrong: {
properties: {
wrong: string
}
}
let weak: Weak & Spoiler = propertiesWrong
~~~~
!!! error TS2322: Type '{ properties: { wrong: string; }; }' is not assignable to type 'Weak & Spoiler'.
!!! error TS2322: Types of property 'properties' are incompatible.
!!! error TS2322: Type '{ wrong: string; }' has no properties in common with type '{ b?: number; }'.
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