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=== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/optionalPropertyAssignableToStringIndexSignature.ts ===
declare let optionalProperties: { k1?: string };
>optionalProperties : Symbol(optionalProperties, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 0, 11))
>k1 : Symbol(k1, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 0, 33))
declare let undefinedProperties: { k1: string | undefined };
>undefinedProperties : Symbol(undefinedProperties, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 1, 11))
>k1 : Symbol(k1, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 1, 34))
declare let stringDictionary: { [key: string]: string };
>stringDictionary : Symbol(stringDictionary, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 3, 11))
>key : Symbol(key, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 3, 33))
stringDictionary = optionalProperties; // ok
>stringDictionary : Symbol(stringDictionary, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 3, 11))
>optionalProperties : Symbol(optionalProperties, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 0, 11))
stringDictionary = undefinedProperties; // error
>stringDictionary : Symbol(stringDictionary, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 3, 11))
>undefinedProperties : Symbol(undefinedProperties, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 1, 11))
declare let probablyArray: { [key: number]: string };
>probablyArray : Symbol(probablyArray, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 7, 11))
>key : Symbol(key, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 7, 30))
declare let numberLiteralKeys: { 1?: string };
>numberLiteralKeys : Symbol(numberLiteralKeys, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 8, 11))
>1 : Symbol(1, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 8, 32))
probablyArray = numberLiteralKeys; // error
>probablyArray : Symbol(probablyArray, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 7, 11))
>numberLiteralKeys : Symbol(numberLiteralKeys, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 8, 11))
declare let optionalUndefined: { k1?: undefined };
>optionalUndefined : Symbol(optionalUndefined, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 11, 11))
>k1 : Symbol(k1, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 11, 32))
let dict: { [key: string]: string } = optionalUndefined; // error
>dict : Symbol(dict, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 12, 3))
>key : Symbol(key, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 12, 13))
>optionalUndefined : Symbol(optionalUndefined, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 11, 11))
function f<T>() {
>f : Symbol(f, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 12, 56))
>T : Symbol(T, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 14, 11))
let optional: { k1?: T } = undefined!;
>optional : Symbol(optional, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 15, 4))
>k1 : Symbol(k1, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 15, 16))
>T : Symbol(T, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 14, 11))
>undefined : Symbol(undefined)
let dict: { [key: string]: T | number } = optional; // ok
>dict : Symbol(dict, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 16, 4))
>key : Symbol(key, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 16, 14))
>T : Symbol(T, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 14, 11))
>optional : Symbol(optional, Decl(optionalPropertyAssignableToStringIndexSignature.ts, 15, 4))
}
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