fix: Memory leak caused by global variables.

[ygj6]

Fix: #685

[ygj6]

composition-api/src/mixin.ts

Lines 250 to 256 in 12b544e

	proxy(ctx, key, {
	get() {
	return (...args: any[]) => {
	const fn: Function = vm[srcKey]
	fn.apply(vm, args)
	}
	},

composition-api/src/utils/utils.ts

Lines 17 to 32 in 12b544e

	const sharedPropertyDefinition = {
	enumerable: true,
	configurable: true,
	get: noopFn,
	set: noopFn,
	}
	export function proxy(
	target: any,
	key: string,
	{ get, set }: { get?: Function; set?: Function }
	) {
	sharedPropertyDefinition.get = get || noopFn
	sharedPropertyDefinition.set = set || noopFn
	Object.defineProperty(target, key, sharedPropertyDefinition)
	}

When mounting the setter and getter, a reference to the current vue instance by the global variable sharedPropertyDefinition appears.