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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(1,9): error TS2339: Property 'hello' does not exist on type '{}'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(7,1): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; }' has no index signature. Did you mean to call 'c.get'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(8,13): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; }' has no index signature. Did you mean to call 'c.get'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(13,13): error TS7053: Element implicitly has an 'any' type because expression of type '"hello"' can't be used to index type '{ set: (key: string) => string; }'.
Property 'hello' does not exist on type '{ set: (key: string) => string; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(20,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.get'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(21,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(22,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(23,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(31,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.get'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(32,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(33,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(34,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(42,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.get'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(43,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(44,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(45,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(49,3): error TS2339: Property 'hello' does not exist on type '{ get: (key: string) => string; set: (key: string, value: string) => void; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(50,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(51,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(52,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(56,3): error TS2339: Property 'hello' does not exist on type '{ get: (key: string) => string; set: (key: string, value: string) => void; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(57,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(58,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(59,3): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(65,1): error TS7053: Element implicitly has an 'any' type because expression of type '"a" | "b" | "c"' can't be used to index type '{ a: number; }'.
Property 'b' does not exist on type '{ a: number; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(69,1): error TS7053: Element implicitly has an 'any' type because expression of type '"c"' can't be used to index type '{ a: number; }'.
Property 'c' does not exist on type '{ a: number; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(72,1): error TS7053: Element implicitly has an 'any' type because expression of type 'unique symbol' can't be used to index type '{ a: number; }'.
Property '[sym]' does not exist on type '{ a: number; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(76,1): error TS7053: Element implicitly has an 'any' type because expression of type 'NumEnum' can't be used to index type '{ a: number; }'.
Property '[NumEnum.a]' does not exist on type '{ a: number; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(81,1): error TS7053: Element implicitly has an 'any' type because expression of type 'StrEnum' can't be used to index type '{ a: number; }'.
Property '[StrEnum.b]' does not exist on type '{ a: number; }'.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(93,5): error TS2538: Type 'Dog' cannot be used as an index type.
tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(99,1): error TS7052: Element implicitly has an 'any' type because type 'MyMap<string, string>' has no index signature. Did you mean to call 'm.prop.get'?
==== tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts (31 errors) ====
var a = {}["hello"];
~~~~~~~~~~~
!!! error TS2339: Property 'hello' does not exist on type '{}'.
var b: string = { '': 'foo' }[''];
var c = {
get: (key: string) => 'foobar'
};
c['hello'];
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; }' has no index signature. Did you mean to call 'c.get'?
const foo = c['hello'];
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; }' has no index signature. Did you mean to call 'c.get'?
var d = {
set: (key: string) => 'foobar'
};
const bar = d['hello'];
~~~~~~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type '"hello"' can't be used to index type '{ set: (key: string) => string; }'.
!!! error TS7053: Property 'hello' does not exist on type '{ set: (key: string) => string; }'.
{
let e = {
get: (key: string) => 'foobar',
set: (key: string) => 'foobar'
};
e['hello'];
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.get'?
e['hello'] = 'modified';
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.set'?
e['hello'] += 1;
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.set'?
e['hello'] ++;
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string) => string; }' has no index signature. Did you mean to call 'e.set'?
}
{
let e = {
get: (key: string) => 'foobar',
set: (key: string, value: string) => 'foobar'
};
e['hello'];
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.get'?
e['hello'] = 'modified';
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
e['hello'] += 1;
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
e['hello'] ++;
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
}
{
let e = {
get: (key: "hello" | "world") => 'foobar',
set: (key: "hello" | "world", value: string) => 'foobar'
};
e['hello'];
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.get'?
e['hello'] = 'modified';
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
e['hello'] += 1;
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
e['hello'] ++;
~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: "hello" | "world") => string; set: (key: "hello" | "world", value: string) => string; }' has no index signature. Did you mean to call 'e.set'?
}
{
({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2339: Property 'hello' does not exist on type '{ get: (key: string) => string; set: (key: string, value: string) => void; }'.
({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] = 'modified';
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] += 1;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
({ get: (key: string) => 'hello', set: (key: string, value: string) => {} })['hello'] ++;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
}
{
({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2339: Property 'hello' does not exist on type '{ get: (key: string) => string; set: (key: string, value: string) => void; }'.
({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] = 'modified';
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] += 1;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
({ foo: { get: (key: string) => 'hello', set: (key: string, value: string) => {} } }).foo['hello'] ++;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; set: (key: string, value: string) => void; }' has no index signature. Did you mean to call 'set'?
}
const o = { a: 0 };
declare const k: "a" | "b" | "c";
o[k];
~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type '"a" | "b" | "c"' can't be used to index type '{ a: number; }'.
!!! error TS7053: Property 'b' does not exist on type '{ a: number; }'.
declare const k2: "c";
o[k2];
~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type '"c"' can't be used to index type '{ a: number; }'.
!!! error TS7053: Property 'c' does not exist on type '{ a: number; }'.
declare const sym : unique symbol;
o[sym];
~~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'unique symbol' can't be used to index type '{ a: number; }'.
!!! error TS7053: Property '[sym]' does not exist on type '{ a: number; }'.
enum NumEnum { a, b }
let numEnumKey: NumEnum;
o[numEnumKey];
~~~~~~~~~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'NumEnum' can't be used to index type '{ a: number; }'.
!!! error TS7053: Property '[NumEnum.a]' does not exist on type '{ a: number; }'.
enum StrEnum { a = "a", b = "b" }
let strEnumKey: StrEnum;
o[strEnumKey];
~~~~~~~~~~~~~
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'StrEnum' can't be used to index type '{ a: number; }'.
!!! error TS7053: Property '[StrEnum.b]' does not exist on type '{ a: number; }'.
interface MyMap<K, T> {
get(key: K): T;
set(key: K, value: T): void;
}
interface Dog { bark(): void; }
let rover: Dog = { bark() {} };
declare let map: MyMap<Dog, string>;
map[rover] = "Rover";
~~~~~
!!! error TS2538: Type 'Dog' cannot be used as an index type.
interface I {
prop: MyMap<string, string>
}
declare const m: I;
m.prop['a'];
~~~~~~~~~~~
!!! error TS7052: Element implicitly has an 'any' type because type 'MyMap<string, string>' has no index signature. Did you mean to call 'm.prop.get'?
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