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/**
* Gecko XPIDL base types.
*/
/**
* Generic IDs are created by most code which passes a nsID to js.
*/
interface nsID<uuid = string> {
readonly number: uuid;
}
/**
* In addition to nsID, interface IIDs support instanceof type guards,
* and expose constants defined on the class, including variants from enums.
*/
type nsJSIID<iface, enums = {}> = nsID &
Constants<iface> &
enums & {
new (_: never): void;
prototype: iface;
};
/** A union type of all known interface IIDs. */
type nsIID = nsIXPCComponents_Interfaces[keyof nsIXPCComponents_Interfaces];
/** A generic to resolve QueryInterface return type from a nsIID. */
type nsQIResult<iid> = iid extends { prototype: infer U } ? U : never;
/** Picks only const number properties from T. */
type Constants<T> = { [K in keyof T as IfConst<K, T[K]>]: T[K] };
/** Resolves only for keys K whose corresponding type T is a narrow number. */
type IfConst<K, T> = T extends number ? (number extends T ? never : K) : never;
/** u32 */
type nsresult = u32;
// Numeric typedefs, useful as a quick reference in method signatures.
type double = number;
type float = number;
type i16 = number;
type i32 = number;
type i64 = number;
type u16 = number;
type u32 = number;
type u64 = number;
type u8 = number;