Created
February 19, 2016 18:20
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interface ISignal { | |
_ISignalStructuralProperty: void; | |
} | |
interface ISignal1<T1> { | |
_ISignal1StructuralPropertyT1: T1; | |
} | |
interface ISignal2<T1, T2> { | |
_ISignal2StructuralPropertyT1: T1; | |
_ISignal2StructuralPropertyT2: T2; | |
} | |
interface ISignal3<T1, T2, T3> { | |
_ISignal3StructuralPropertyT1: T1; | |
_ISignal3StructuralPropertyT2: T2; | |
_ISignal3StructuralPropertyT3: T3; | |
} | |
interface ISignal4<T1, T2, T3, T4> { | |
_ISignal4StructuralPropertyT1: T1; | |
_ISignal4StructuralPropertyT2: T2; | |
_ISignal4StructuralPropertyT3: T3; | |
_ISignal4StructuralPropertyT4: T4; | |
} | |
function createSignal(): ISignal; | |
function createSignal<T1>(): ISignal1<T1>; | |
function createSignal<T1, T2>(): ISignal2<T1, T2>; | |
function createSignal<T1, T2, T3>(): ISignal3<T1, T2, T3>; | |
function createSignal<T1, T2, T3, T4>(): ISignal4<T1, T2, T3, T4>; | |
function createSignal(): any { | |
return Object.create(null); | |
} | |
interface ISlot<T> { | |
(sender: T): void; | |
} | |
interface ISlot1<T, A1> { | |
(sender: T, a1: A1): void; | |
} | |
interface ISlot2<T, A1, A2> { | |
(sender: T, a1: A1, a2: A2): void; | |
} | |
interface ISlot3<T, A1, A2, A3> { | |
(sender: T, a1: A1, a2: A2, a3: A3): void; | |
} | |
interface ISlot4<T, A1, A2, A3, A4> { | |
(sender: T, a1: A1, a2: A2, a3: A3, a4: A4): void; | |
} | |
class Emitter { | |
connect(signal: ISignal, slot: ISlot<this>): void; | |
connect<A1>(signal: ISignal1<A1>, slot: ISlot1<this, A1>): void; | |
connect<A1, A2>(signal: ISignal2<A1, A2>, slot: ISlot2<this, A1, A2>): void; | |
connect<A1, A2, A3>(signal: ISignal3<A1, A2, A3>, slot: ISlot3<this, A1, A2, A3>): void; | |
connect<A1, A2, A3, A4>(signal: ISignal4<A1, A2, A3, A4>, slot: ISlot4<this, A1, A2, A3, A4>): void; | |
connect(signal: any, slot: any): void { | |
} | |
disconnect(signal: ISignal, slot: ISlot<this>): void; | |
disconnect<A1>(signal: ISignal1<A1>, slot: ISlot1<this, A1>): void; | |
disconnect<A1, A2>(signal: ISignal2<A1, A2>, slot: ISlot2<this, A1, A2>): void; | |
disconnect<A1, A2, A3>(signal: ISignal3<A1, A2, A3>, slot: ISlot3<this, A1, A2, A3>): void; | |
disconnect<A1, A2, A3, A4>(signal: ISignal4<A1, A2, A3, A4>, slot: ISlot4<this, A1, A2, A3, A4>): void; | |
disconnect(signal: any, slot: any): void { | |
} | |
protected emit(signal: ISignal): void; | |
protected emit<A1>(signal: ISignal1<A1>, a1: A1): void; | |
protected emit<A1, A2>(signal: ISignal2<A1, A2>, a1: A1, a2: A2): void; | |
protected emit<A1, A2, A3>(signal: ISignal3<A1, A2, A3>, a1: A1, a2: A2, a3: A3): void; | |
protected emit<A1, A2, A3, A4>(signal: ISignal4<A1, A2, A3, A4>, a1: A1, a2: A2, a3: A3, a4: A4): void; | |
protected emit(signal: any, a1?: any, a2?: any, a3?: any, a4?: any): void { | |
} | |
} | |
// Example | |
class MyClass extends Emitter { | |
static changed = createSignal(); | |
static textChanged = createSignal<string>(); | |
static tabMoved = createSignal<number, number>(); | |
doThing(): void { | |
// ... | |
this.emit(MyClass.changed); | |
} | |
setText(text: string): void { | |
// ... | |
this.emit(MyClass.textChanged, text); | |
} | |
moveTab(fromIndex: number, toIndex: number) { | |
// ... | |
this.emit(MyClass.tabMoved, fromIndex); // error - missing argument | |
this.emit(MyClass.tabMoved, fromIndex, toIndex); | |
} | |
} |
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