/
fixture.ts
152 lines (119 loc) · 5.39 KB
/
fixture.ts
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import {
EventTarget as EventTargetShim,
Event as EventShim,
Type,
defineEventAttribute,
} from "./event-target"
let a: EventTargetShim = new EventTargetShim()
let b: EventTarget = new EventTargetShim()
let c = new (EventTargetShim<{ test: Event }, { ontest: Event }>("test"))()
let d = new (EventTargetShim("test"))()
a.addEventListener("test", (event: EventShim) => { })
a.addEventListener("test", (event: Event) => { })
a.addEventListener("test", (event: EventShim) => { }, true)
a.addEventListener("test", (event: EventShim) => { }, { capture: true })
a.addEventListener("test", (event: EventShim) => { }, { capture: true, once: true, passive: true })
a.dispatchEvent(new CustomEvent("test"))
a.dispatchEvent({ type: "test" })
a.removeEventListener("test", (event: EventShim) => { })
a.removeEventListener("test", (event: Event) => { })
a.removeEventListener("test", (event: EventShim) => { }, true)
a.removeEventListener("test", (event: EventShim) => { }, { capture: true })
b.addEventListener("test", (event: EventShim) => { })
b.addEventListener("test", (event: Event) => { })
b.addEventListener("test", (event: EventShim) => { }, true)
b.addEventListener("test", (event: EventShim) => { }, { capture: true })
b.addEventListener("test", (event: EventShim) => { }, { capture: true, once: true, passive: true })
b.dispatchEvent(new CustomEvent("test"))
b.removeEventListener("test", (event: EventShim) => { })
b.removeEventListener("test", (event: Event) => { })
b.removeEventListener("test", (event: EventShim) => { }, true)
b.removeEventListener("test", (event: EventShim) => { }, { capture: true })
c.addEventListener("test", (event: EventShim) => { })
c.addEventListener("test", (event: Event) => { })
c.addEventListener("test", (event: EventShim) => { }, true)
c.addEventListener("test", (event: EventShim) => { }, { capture: true })
c.addEventListener("test", (event: EventShim) => { }, { capture: true, once: true, passive: true })
c.dispatchEvent(new CustomEvent("test"))
c.dispatchEvent({ type: "test" })
c.removeEventListener("test", (event: EventShim) => { })
c.removeEventListener("test", (event: Event) => { })
c.removeEventListener("test", (event: EventShim) => { }, true)
c.removeEventListener("test", (event: EventShim) => { }, { capture: true })
c.ontest = (event: EventShim) => { }
c.ontest = (event: Event) => { }
c.ontest = null
d.addEventListener("test", (event: EventShim) => { })
d.addEventListener("test", (event: Event) => { })
d.addEventListener("test", (event: EventShim) => { }, true)
d.addEventListener("test", (event: EventShim) => { }, { capture: true })
d.addEventListener("test", (event: EventShim) => { }, { capture: true, once: true, passive: true })
d.dispatchEvent(new CustomEvent("test"))
d.dispatchEvent({ type: "test" })
d.removeEventListener("test", (event: EventShim) => { })
d.removeEventListener("test", (event: Event) => { })
d.removeEventListener("test", (event: EventShim) => { }, true)
d.removeEventListener("test", (event: EventShim) => { }, { capture: true })
interface TestEvent extends Event {
type: "test"
data: string
}
// In "strict" mode, cannot use undefined event types.
// On the other hand, it cannot be assigned to the standard `EventTarget` type.
// This means the following cases are error.
const StrictCustomEventTarget = EventTargetShim<
{ test: TestEvent },
{ ontest: TestEvent },
"strict"
>("test")
const e = new StrictCustomEventTarget()
e.addEventListener("test", e => { const e2: TestEvent = e })
e.removeEventListener("test", e => { const e2: TestEvent = e })
e.dispatchEvent({ type: "test", data: "" })
e.dispatchEvent({ type: "test" }) //@expected 2345
e.addEventListener(
"other", //@expected 2345
e => { const e2: Event = e } //@expected 7006
)
e.removeEventListener(
"other", //@expected 2345
e => { const e2: Event = e } //@expected 7006
)
e.dispatchEvent({ type: "other" }) //@expected 2322
b = e //@expected 2322
// In "loose" mode, can use undefined event types and can be assigned to the
// standard `EventTarget` type.
const LooseCustomEventTarget = EventTargetShim<
{ test: TestEvent },
{ ontest: TestEvent }
>("test")
const f = new LooseCustomEventTarget()
f.addEventListener("test", e => { const e2: TestEvent = e })
f.removeEventListener("test", e => { const e2: TestEvent = e })
f.dispatchEvent({ type: "test", data: "" })
f.dispatchEvent({ type: "test" }) //⚠️ cannot infer type
f.addEventListener("other", e => { const e2: Event = e })
f.removeEventListener("other", e => { const e2: Event = e })
f.dispatchEvent({ type: "other" })
b = f
defineEventAttribute(StrictCustomEventTarget.prototype, "test")
defineEventAttribute(LooseCustomEventTarget.prototype, "test")
class AbortSignal extends EventTargetShim<
{ abort: Event & Type<"abort"> },
{ onabort: Event & Type<"abort"> },
"loose"
> {
}
defineEventAttribute(AbortSignal.prototype, "abort")
class EventSource extends EventTargetShim<
{ error: Event & Type<"error">, message: MessageEvent & Type<"message">, open: Event & Type<"open"> },
{ onerror: Event & Type<"error">, onmessage: MessageEvent & Type<"message">, onopen: Event & Type<"open"> },
"strict"
> {
}
defineEventAttribute(EventSource.prototype, "close")
defineEventAttribute(EventSource.prototype, "error")
defineEventAttribute(EventSource.prototype, "message")
let es = new EventSource()
es.addEventListener("message", e => { e.data })
es.dispatchEvent({ type: "message" }) //@expected 2345