withSymbol() — vue Function Reference

Source Code

types/test/v3/reactivity-test.ts lines 105–144

function withSymbol() {
  const customSymbol = Symbol()
  const obj = {
    [Symbol.asyncIterator]: ref(1),
    [Symbol.hasInstance]: { a: ref('a') },
    [Symbol.isConcatSpreadable]: { b: ref(true) },
    [Symbol.iterator]: [ref(1)],
    [Symbol.match]: new Set<Ref<number>>(),
    [Symbol.matchAll]: new Map<number, Ref<string>>(),
    [Symbol.replace]: { arr: [ref('a')] },
    [Symbol.search]: { set: new Set<Ref<number>>() },
    [Symbol.species]: { map: new Map<number, Ref<string>>() },
    [Symbol.split]: new WeakSet<Ref<boolean>>(),
    [Symbol.toPrimitive]: new WeakMap<Ref<boolean>, string>(),
    [Symbol.toStringTag]: { weakSet: new WeakSet<Ref<boolean>>() },
    [Symbol.unscopables]: { weakMap: new WeakMap<Ref<boolean>, string>() },
    [customSymbol]: { arr: [ref(1)] }
  }

  const objRef = ref(obj)

  expectType<Ref<number>>(objRef.value[Symbol.asyncIterator])
  expectType<{ a: Ref<string> }>(objRef.value[Symbol.hasInstance])
  expectType<{ b: Ref<boolean> }>(objRef.value[Symbol.isConcatSpreadable])
  expectType<Ref<number>[]>(objRef.value[Symbol.iterator])
  expectType<Set<Ref<number>>>(objRef.value[Symbol.match])
  expectType<Map<number, Ref<string>>>(objRef.value[Symbol.matchAll])
  expectType<{ arr: Ref<string>[] }>(objRef.value[Symbol.replace])
  expectType<{ set: Set<Ref<number>> }>(objRef.value[Symbol.search])
  expectType<{ map: Map<number, Ref<string>> }>(objRef.value[Symbol.species])
  expectType<WeakSet<Ref<boolean>>>(objRef.value[Symbol.split])
  expectType<WeakMap<Ref<boolean>, string>>(objRef.value[Symbol.toPrimitive])
  expectType<{ weakSet: WeakSet<Ref<boolean>> }>(
    objRef.value[Symbol.toStringTag]
  )
  expectType<{ weakMap: WeakMap<Ref<boolean>, string> }>(
    objRef.value[Symbol.unscopables]
  )
  expectType<{ arr: Ref<number>[] }>(objRef.value[customSymbol])
}