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import microMemoize from 'micro-memoize'
import {
unstable_autotrackMemoize as autotrackMemoize,
createSelector,
createSelectorCreator,
lruMemoize,
weakMapMemoize
} from 'reselect'
import { assertType, describe, expectTypeOf, test } from 'vitest'
interface RootState {
todos: {
id: number
completed: boolean
}[]
}
const state: RootState = {
todos: [
{ id: 0, completed: false },
{ id: 1, completed: false }
]
}
describe('memoize and argsMemoize', () => {
test('Override Only Memoize In createSelector', () => {
const selectorDefaultSeparateInlineArgs = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: lruMemoize }
)
const selectorDefaultArgsAsArray = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ memoize: lruMemoize }
)
const selectorDefaultArgsAsArrayWithMemoizeOptions = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ memoize: lruMemoize, memoizeOptions: { maxSize: 2 } }
)
const selectorDefaultSeparateInlineArgsWithMemoizeOptions = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: lruMemoize, memoizeOptions: { maxSize: 2 } }
)
const selectorAutotrackSeparateInlineArgs = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: autotrackMemoize }
)
const selectorAutotrackArgsAsArray = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ memoize: autotrackMemoize }
)
// @ts-expect-error When memoize is autotrackMemoize, type of memoizeOptions needs to be the same as options args in autotrackMemoize.
const selectorAutotrackArgsAsArrayWithMemoizeOptions = createSelector(
[(state: RootState) => state.todos],
// @ts-expect-error
todos => todos.map(t => t.id),
{ memoize: autotrackMemoize, memoizeOptions: { maxSize: 2 } }
)
const selectorAutotrackSeparateInlineArgsWithMemoizeOptions =
// @ts-expect-error When memoize is autotrackMemoize, type of memoizeOptions needs to be the same as options args in autotrackMemoize.
createSelector(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{ memoize: autotrackMemoize, memoizeOptions: { maxSize: 2 } }
)
const selectorWeakMapSeparateInlineArgs = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: weakMapMemoize }
)
const selectorWeakMapArgsAsArray = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ memoize: weakMapMemoize }
)
// @ts-expect-error When memoize is weakMapMemoize, type of memoizeOptions needs to be the same as options args in weakMapMemoize.
const selectorWeakMapArgsAsArrayWithMemoizeOptions = createSelector(
[(state: RootState) => state.todos],
// @ts-expect-error
todos => todos.map(t => t.id),
{ memoize: weakMapMemoize, memoizeOptions: { maxSize: 2 } }
)
// @ts-expect-error When memoize is weakMapMemoize, type of memoizeOptions needs to be the same as options args in weakMapMemoize.
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions = createSelector(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{ memoize: weakMapMemoize, memoizeOptions: { maxSize: 2 } }
)
const createSelectorDefault = createSelectorCreator(lruMemoize)
const createSelectorWeakMap = createSelectorCreator(weakMapMemoize)
const createSelectorAutotrack = createSelectorCreator(autotrackMemoize)
const changeMemoizeMethodSelectorDefault = createSelectorDefault(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: weakMapMemoize }
)
const changeMemoizeMethodSelectorWeakMap = createSelectorWeakMap(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: lruMemoize }
)
const changeMemoizeMethodSelectorAutotrack = createSelectorAutotrack(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: lruMemoize }
)
const changeMemoizeMethodSelectorDefaultWithMemoizeOptions =
// @ts-expect-error When memoize is changed to weakMapMemoize or autotrackMemoize, memoizeOptions cannot be the same type as options args in lruMemoize.
createSelectorDefault(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{ memoize: weakMapMemoize, memoizeOptions: { maxSize: 2 } }
)
const changeMemoizeMethodSelectorWeakMapWithMemoizeOptions =
createSelectorWeakMap(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: lruMemoize, memoizeOptions: { maxSize: 2 } } // When memoize is changed to lruMemoize, memoizeOptions can now be the same type as options args in lruMemoize.
)
const changeMemoizeMethodSelectorAutotrackWithMemoizeOptions =
createSelectorAutotrack(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ memoize: lruMemoize, memoizeOptions: { maxSize: 2 } } // When memoize is changed to lruMemoize, memoizeOptions can now be the same type as options args in lruMemoize.
)
})
test('Override Only argsMemoize In createSelector', () => {
const selectorDefaultSeparateInlineArgs = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize }
)
const selectorDefaultArgsAsArray = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize }
)
const selectorDefaultArgsAsArrayWithMemoizeOptions = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize, argsMemoizeOptions: { maxSize: 2 } }
)
const selectorDefaultSeparateInlineArgsWithMemoizeOptions = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize, argsMemoizeOptions: { maxSize: 2 } }
)
const selectorAutotrackSeparateInlineArgs = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: autotrackMemoize }
)
const selectorAutotrackArgsAsArray = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ argsMemoize: autotrackMemoize }
)
// @ts-expect-error When argsMemoize is autotrackMemoize, type of argsMemoizeOptions needs to be the same as options args in autotrackMemoize.
const selectorAutotrackArgsAsArrayWithMemoizeOptions = createSelector(
[(state: RootState) => state.todos],
// @ts-expect-error
todos => todos.map(t => t.id),
{
argsMemoize: autotrackMemoize,
argsMemoizeOptions: { maxSize: 2 }
}
)
const selectorAutotrackSeparateInlineArgsWithMemoizeOptions =
// @ts-expect-error When argsMemoize is autotrackMemoize, type of argsMemoizeOptions needs to be the same as options args in autotrackMemoize.
createSelector(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{
argsMemoize: autotrackMemoize,
argsMemoizeOptions: { maxSize: 2 }
}
)
const selectorWeakMapSeparateInlineArgs = createSelector(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: weakMapMemoize }
)
const selectorWeakMapArgsAsArray = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ argsMemoize: weakMapMemoize }
)
// @ts-expect-error When argsMemoize is weakMapMemoize, type of argsMemoizeOptions needs to be the same as options args in weakMapMemoize.
const selectorWeakMapArgsAsArrayWithMemoizeOptions = createSelector(
[(state: RootState) => state.todos],
// @ts-expect-error
todos => todos.map(t => t.id),
{ argsMemoize: weakMapMemoize, argsMemoizeOptions: { maxSize: 2 } }
)
// @ts-expect-error When argsMemoize is weakMapMemoize, type of argsMemoizeOptions needs to be the same as options args in weakMapMemoize.
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions = createSelector(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{ argsMemoize: weakMapMemoize, argsMemoizeOptions: { maxSize: 2 } }
)
// @ts-expect-error When argsMemoize is weakMapMemoize, type of argsMemoizeOptions needs to be the same as options args in weakMapMemoize.
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions1 = createSelector(
[
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id)
],
{
argsMemoize: weakMapMemoize,
argsMemoizeOptions: { maxSize: 2 }
}
)
// @ts-expect-error When argsMemoize is weakMapMemoize, type of argsMemoizeOptions needs to be the same as options args in weakMapMemoize.
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions2 = createSelector(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{
memoize: lruMemoize,
argsMemoize: weakMapMemoize,
memoizeOptions: {
equalityCheck:
// @ts-expect-error
(a, b) => a === b,
maxSize: 2
},
argsMemoizeOptions: { maxSize: 2 }
}
)
const createSelectorLruMemoize = createSelectorCreator({
memoize: lruMemoize
})
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions3 =
// @ts-expect-error When argsMemoize is weakMapMemoize, type of argsMemoizeOptions needs to be the same as options args in weakMapMemoize.
createSelectorLruMemoize(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{
memoize: lruMemoize,
argsMemoize: weakMapMemoize,
// memoizeOptions: [],
memoizeOptions: [
{
equalityCheck:
// @ts-expect-error
(a, b) => a === b,
maxSize: 2
}
],
argsMemoizeOptions: [{ maxSize: 2 }]
}
)
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions4 =
createSelectorLruMemoize(
// @ts-expect-error
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{
memoizeOptions: [{ isPromise: false }],
argsMemoizeOptions:
// @ts-expect-error
(a, b) => a === b
}
)
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions5 =
// @ts-expect-error
createSelectorLruMemoize(
[(state: RootState) => state.todos],
// @ts-expect-error
todos => todos.map(t => t.id),
{
argsMemoize: weakMapMemoize,
memoizeOptions: [{ isPromise: false }],
argsMemoizeOptions: []
// argsMemoizeOptions: (a, b) => a === b
}
)
const selectorWeakMapSeparateInlineArgsWithMemoizeOptions6 =
createSelectorLruMemoize(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{
argsMemoize: weakMapMemoize,
memoize: weakMapMemoize,
memoizeOptions: [],
argsMemoizeOptions: []
// argsMemoizeOptions: (a, b) => a === b
}
)
const createSelectorDefault = createSelectorCreator(lruMemoize)
const createSelectorWeakMap = createSelectorCreator(weakMapMemoize)
const createSelectorAutotrack = createSelectorCreator(autotrackMemoize)
const changeMemoizeMethodSelectorDefault = createSelectorDefault(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: weakMapMemoize }
)
const changeMemoizeMethodSelectorWeakMap = createSelectorWeakMap(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize }
)
const changeMemoizeMethodSelectorAutotrack = createSelectorAutotrack(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize }
)
const changeMemoizeMethodSelectorDefaultWithMemoizeOptions =
// @ts-expect-error When argsMemoize is changed to weakMapMemoize or autotrackMemoize, argsMemoizeOptions cannot be the same type as options args in lruMemoize.
createSelectorDefault(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{ argsMemoize: weakMapMemoize, argsMemoizeOptions: { maxSize: 2 } }
)
const changeMemoizeMethodSelectorWeakMapWithMemoizeOptions =
createSelectorWeakMap(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize, argsMemoizeOptions: { maxSize: 2 } } // When argsMemoize is changed to lruMemoize, argsMemoizeOptions can now be the same type as options args in lruMemoize.
)
const changeMemoizeMethodSelectorAutotrackWithMemoizeOptions =
createSelectorAutotrack(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{ argsMemoize: lruMemoize, argsMemoizeOptions: { maxSize: 2 } } // When argsMemoize is changed to lruMemoize, argsMemoizeOptions can now be the same type as options args in lruMemoize.
)
})
test('Override memoize And argsMemoize In createSelector', () => {
const createSelectorMicroMemoize = createSelectorCreator({
memoize: microMemoize,
memoizeOptions: [{ isEqual: (a, b) => a === b }],
// memoizeOptions: { isEqual: (a, b) => a === b },
argsMemoize: microMemoize,
argsMemoizeOptions: { isEqual: (a, b) => a === b }
})
const selectorMicroMemoize = createSelectorMicroMemoize(
(state: RootState) => state.todos,
todos => todos.map(({ id }) => id)
)
assertType<number[]>(selectorMicroMemoize(state))
// @ts-expect-error
selectorMicroMemoize()
// Checking existence of fields related to `argsMemoize`
selectorMicroMemoize.cache
selectorMicroMemoize.fn()
selectorMicroMemoize.isMemoized
selectorMicroMemoize.options
// @ts-expect-error
selectorMicroMemoize.clearCache()
// Checking existence of fields related to `memoize`
selectorMicroMemoize.memoizedResultFunc.cache
selectorMicroMemoize.memoizedResultFunc.fn()
selectorMicroMemoize.memoizedResultFunc.isMemoized
selectorMicroMemoize.memoizedResultFunc.options
// @ts-expect-error
selectorMicroMemoize.memoizedResultFunc.clearCache()
// Checking existence of fields related to the actual memoized selector
selectorMicroMemoize.dependencies
assertType<
[
(state: RootState) => {
id: number
completed: boolean
}[]
]
>(selectorMicroMemoize.dependencies)
assertType<number[]>(selectorMicroMemoize.lastResult())
// @ts-expect-error
selectorMicroMemoize.memoizedResultFunc()
assertType<number[]>(
selectorMicroMemoize.memoizedResultFunc([{ id: 0, completed: true }])
)
selectorMicroMemoize.recomputations()
selectorMicroMemoize.resetRecomputations()
// @ts-expect-error
selectorMicroMemoize.resultFunc()
assertType<number[]>(
selectorMicroMemoize.resultFunc([{ id: 0, completed: true }])
)
// Checking to see if types dynamically change if memoize or argsMemoize are overridden inside `createSelector`.
// `microMemoize` was initially passed into `createSelectorCreator`
// as `memoize` and `argsMemoize`, After overriding them both to `lruMemoize`,
// not only does the type for `memoizeOptions` and `argsMemoizeOptions` change to
// the options parameter of `lruMemoize`, the output selector fields
// also change their type to the return type of `lruMemoize`.
const selectorMicroMemoizeOverridden = createSelectorMicroMemoize(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{
memoize: lruMemoize,
argsMemoize: lruMemoize,
memoizeOptions: { equalityCheck: (a, b) => a === b, maxSize: 2 },
argsMemoizeOptions: { equalityCheck: (a, b) => a === b, maxSize: 3 }
}
)
assertType<number[]>(selectorMicroMemoizeOverridden(state))
// @ts-expect-error
selectorMicroMemoizeOverridden()
// Checking existence of fields related to `argsMemoize`
selectorMicroMemoizeOverridden.clearCache() // Prior to override, this field did NOT exist.
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.cache
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.fn()
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.isMemoized
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.options
// Checking existence of fields related to `memoize`
selectorMicroMemoizeOverridden.memoizedResultFunc.clearCache() // Prior to override, this field did NOT exist.
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.memoizedResultFunc.cache
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.memoizedResultFunc.fn()
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.memoizedResultFunc.isMemoized
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverridden.memoizedResultFunc.options
// Checking existence of fields related to the actual memoized selector
assertType<
[
(state: RootState) => {
id: number
completed: boolean
}[]
]
>(selectorMicroMemoizeOverridden.dependencies)
assertType<number[]>(
selectorMicroMemoizeOverridden.memoizedResultFunc([
{ id: 0, completed: true }
])
)
// @ts-expect-error
selectorMicroMemoizeOverridden.memoizedResultFunc()
selectorMicroMemoizeOverridden.recomputations()
selectorMicroMemoizeOverridden.resetRecomputations()
// @ts-expect-error
selectorMicroMemoizeOverridden.resultFunc()
assertType<number[]>(
selectorMicroMemoizeOverridden.resultFunc([{ id: 0, completed: true }])
)
// Making sure the type behavior is consistent when args are passed in as an array.
const selectorMicroMemoizeOverriddenArray = createSelectorMicroMemoize(
[(state: RootState) => state.todos],
todos => todos.map(({ id }) => id),
{
memoize: lruMemoize,
argsMemoize: lruMemoize,
memoizeOptions: { equalityCheck: (a, b) => a === b, maxSize: 2 },
argsMemoizeOptions: { equalityCheck: (a, b) => a === b, maxSize: 3 }
}
)
assertType<number[]>(selectorMicroMemoizeOverriddenArray(state))
// @ts-expect-error
selectorMicroMemoizeOverriddenArray()
// Checking existence of fields related to `argsMemoize`
selectorMicroMemoizeOverriddenArray.clearCache() // Prior to override, this field did NOT exist.
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.cache
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.fn()
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.isMemoized
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.options
// Checking existence of fields related to `memoize`
selectorMicroMemoizeOverriddenArray.memoizedResultFunc.clearCache() // Prior to override, this field did NOT exist.
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.memoizedResultFunc.cache
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.memoizedResultFunc.fn()
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.memoizedResultFunc.isMemoized
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverriddenArray.memoizedResultFunc.options
// Checking existence of fields related to the actual memoized selector
assertType<
[
(state: RootState) => {
id: number
completed: boolean
}[]
]
>(selectorMicroMemoizeOverriddenArray.dependencies)
assertType<number[]>(
selectorMicroMemoizeOverriddenArray.memoizedResultFunc([
{ id: 0, completed: true }
])
)
// @ts-expect-error
selectorMicroMemoizeOverriddenArray.memoizedResultFunc()
selectorMicroMemoizeOverriddenArray.recomputations()
selectorMicroMemoizeOverriddenArray.resetRecomputations()
// @ts-expect-error
selectorMicroMemoizeOverriddenArray.resultFunc()
assertType<number[]>(
selectorMicroMemoizeOverriddenArray.resultFunc([
{ id: 0, completed: true }
])
)
const selectorMicroMemoizeOverrideArgsMemoizeOnlyWrong =
// @ts-expect-error Because `memoizeOptions` should not contain `resultEqualityCheck`.
createSelectorMicroMemoize(
(state: RootState) => state.todos,
todos => todos.map(({ id }) => id),
{
argsMemoize: lruMemoize,
memoizeOptions: {
isPromise: false,
resultEqualityCheck:
// @ts-expect-error
(a, b) => a === b
},
argsMemoizeOptions: { resultEqualityCheck: (a, b) => a === b }
}
)
const selectorMicroMemoizeOverrideArgsMemoizeOnly =
createSelectorMicroMemoize(
(state: RootState) => state.todos,
todos => todos.map(({ id }) => id),
{
argsMemoize: lruMemoize,
memoizeOptions: { isPromise: false },
argsMemoizeOptions: { resultEqualityCheck: (a, b) => a === b }
}
)
assertType<number[]>(selectorMicroMemoizeOverrideArgsMemoizeOnly(state))
// @ts-expect-error
selectorMicroMemoizeOverrideArgsMemoizeOnly()
// Checking existence of fields related to `argsMemoize`
selectorMicroMemoizeOverrideArgsMemoizeOnly.clearCache() // Prior to override, this field did NOT exist.
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideArgsMemoizeOnly.cache
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideArgsMemoizeOnly.fn()
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideArgsMemoizeOnly.isMemoized
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideArgsMemoizeOnly.options
// Checking existence of fields related to `memoize`, these should still be the same.
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc.cache
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc.fn()
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc.isMemoized
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc.options
// @ts-expect-error Note that since we did not override `memoize` in the options object,
// `memoizedResultFunc.clearCache` is still an invalid field access.
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc.clearCache()
// Checking existence of fields related to the actual memoized selector
assertType<
[
(state: RootState) => {
id: number
completed: boolean
}[]
]
>(selectorMicroMemoizeOverrideArgsMemoizeOnly.dependencies)
assertType<number[]>(
selectorMicroMemoizeOverrideArgsMemoizeOnly.lastResult()
)
assertType<number[]>(
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc([
{ id: 0, completed: true }
])
)
// @ts-expect-error
selectorMicroMemoizeOverrideArgsMemoizeOnly.memoizedResultFunc()
selectorMicroMemoizeOverrideArgsMemoizeOnly.recomputations()
selectorMicroMemoizeOverrideArgsMemoizeOnly.resetRecomputations()
// @ts-expect-error
selectorMicroMemoizeOverrideArgsMemoizeOnly.resultFunc()
assertType<number[]>(
selectorMicroMemoizeOverrideArgsMemoizeOnly.resultFunc([
{ id: 0, completed: true }
])
)
const selectorMicroMemoizeOverrideMemoizeOnly = createSelectorMicroMemoize(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{
memoize: lruMemoize,
memoizeOptions: { resultEqualityCheck: (a, b) => a === b }
}
)
assertType<number[]>(selectorMicroMemoizeOverrideMemoizeOnly(state))
// @ts-expect-error
selectorMicroMemoizeOverrideMemoizeOnly()
// Checking existence of fields related to `argsMemoize`
selectorMicroMemoizeOverrideMemoizeOnly.cache
selectorMicroMemoizeOverrideMemoizeOnly.fn
selectorMicroMemoizeOverrideMemoizeOnly.isMemoized
selectorMicroMemoizeOverrideMemoizeOnly.options
// @ts-expect-error Note that since we did not override `argsMemoize` in the options object,
// `selector.clearCache` is still an invalid field access.
selectorMicroMemoizeOverrideMemoizeOnly.clearCache()
// Checking existence of fields related to `memoize`
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc.cache
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc.fn()
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc.isMemoized
// @ts-expect-error Prior to override, this field DID exist.
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc.options
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc.clearCache() // Prior to override, this field did NOT exist.
// Checking existence of fields related to the actual memoized selector
assertType<
[
(state: RootState) => {
id: number
completed: boolean
}[]
]
>(selectorMicroMemoizeOverrideMemoizeOnly.dependencies)
assertType<number[]>(selectorMicroMemoizeOverrideMemoizeOnly.lastResult())
assertType<number[]>(
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc([
{ id: 0, completed: true }
])
)
// @ts-expect-error
selectorMicroMemoizeOverrideMemoizeOnly.memoizedResultFunc()
selectorMicroMemoizeOverrideMemoizeOnly.recomputations()
selectorMicroMemoizeOverrideMemoizeOnly.resetRecomputations()
// @ts-expect-error
selectorMicroMemoizeOverrideMemoizeOnly.resultFunc()
assertType<number[]>(
selectorMicroMemoizeOverrideMemoizeOnly.resultFunc([
{ id: 0, completed: true }
])
)
const selectorMicroMemoizePartiallyOverridden =
// @ts-expect-error Since `argsMemoize` is set to `lruMemoize`, `argsMemoizeOptions` must match the options object parameter of `lruMemoize`
createSelectorMicroMemoize(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{
memoize: lruMemoize,
argsMemoize: lruMemoize,
memoizeOptions: {
equalityCheck:
// @ts-expect-error
(a, b) => a === b,
maxSize: 2
},
argsMemoizeOptions: { isPromise: false } // This field causes a type error since it does not match the options param of `lruMemoize`.
}
)
const selectorMicroMemoizePartiallyOverridden1 =
// @ts-expect-error Since `argsMemoize` is set to `lruMemoize`, `argsMemoizeOptions` must match the options object parameter of `lruMemoize`
createSelectorMicroMemoize(
(state: RootState) => state.todos,
// @ts-expect-error
todos => todos.map(t => t.id),
{
memoize: lruMemoize,
argsMemoize: lruMemoize,
memoizeOptions: [
{
equalityCheck:
// @ts-expect-error
(a, b) => a === b,
maxSize: 2
}
],
argsMemoizeOptions: [{ isPromise: false }] // This field causes a type error since it does not match the options param of `lruMemoize`.
}
)
const selectorMicroMemoizePartiallyOverridden2 = createSelectorMicroMemoize(
(state: RootState) => state.todos,
todos => todos.map(t => t.id),
{
// memoizeOptions: [
// {
// equalityCheck:
// // @ts-expect-error
// (a, b) => a === b,
// maxSize: 2
// }
// ],
argsMemoizeOptions: [{ isPromise: false }]
}
)
const selectorDefaultParametric = createSelector(
(state: RootState, id: number) => id,
(state: RootState) => state.todos,
(id, todos) => todos.filter(todo => todo.id === id),
{
argsMemoize: microMemoize,
devModeChecks: { inputStabilityCheck: 'never' },
memoize: memoizeOne,
argsMemoizeOptions: [],
memoizeOptions: [(a, b) => a === b]
}
)
assertType<
{
id: number
completed: boolean
}[]
>(selectorDefaultParametric(state, 0))
assertType<
{
id: number
completed: boolean
}[]
>(selectorDefaultParametric(state, 1))
// @ts-expect-error
selectorDefaultParametric(state)
// @ts-expect-error
selectorDefaultParametric(1)
// @ts-expect-error
selectorDefaultParametric(state, '')
// @ts-expect-error
selectorDefaultParametric(state, 1, 1)
// Checking existence of fields related to `argsMemoize`
// Prior to override, this field did NOT exist.
selectorDefaultParametric.cache
// Prior to override, this field did NOT exist.
selectorDefaultParametric.fn
// Prior to override, this field did NOT exist.
selectorDefaultParametric.isMemoized
// Prior to override, this field did NOT exist.
selectorDefaultParametric.options
// @ts-expect-error Prior to override, this field DID exist.
selectorDefaultParametric.clearCache()
// Checking existence of fields related to `memoize`
// @ts-expect-error Prior to override, this field DID exist.
selectorDefaultParametric.memoizedResultFunc.clearCache()
// Prior to override, this field did NOT exist.
selectorDefaultParametric.memoizedResultFunc.clear()
// Checking existence of fields related to the actual memoized selector
assertType<
[
(state: RootState, id: number) => number,
(state: RootState) => { id: number; completed: boolean }[]
]
>(selectorDefaultParametric.dependencies)
assertType<{ id: number; completed: boolean }[]>(
selectorDefaultParametric.lastResult()
)
assertType<{ id: number; completed: boolean }[]>(
selectorDefaultParametric.memoizedResultFunc(0, [
{ id: 0, completed: true }
])
)
// @ts-expect-error
selectorDefaultParametric.memoizedResultFunc()
selectorDefaultParametric.recomputations()
selectorDefaultParametric.resetRecomputations()
// @ts-expect-error
selectorDefaultParametric.resultFunc()
assertType<{ id: number; completed: boolean }[]>(
selectorDefaultParametric.resultFunc(0, [{ id: 0, completed: true }])
)
})
test('memoize And argsMemoize In createSelectorCreator', () => {
// If we don't pass in `argsMemoize`, the type for `argsMemoizeOptions`
// falls back to the options parameter of `lruMemoize`.
const createSelectorArgsMemoizeOptionsFallbackToDefault =
createSelectorCreator({
memoize: microMemoize,
memoizeOptions: [{ isPromise: false }],
argsMemoizeOptions: { resultEqualityCheck: (a, b) => a === b }
})
const selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault =
createSelectorArgsMemoizeOptionsFallbackToDefault(
(state: RootState) => state.todos,
todos => todos.map(({ id }) => id)
)
assertType<number[]>(
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault(state)
)
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault()
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.resultFunc
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.clearCache()
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.cache
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.fn
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.isMemoized
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.options
// Checking existence of fields related to `memoize`
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc
.cache
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc.fn()
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc
.isMemoized
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc
.options
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc.clearCache()
// Checking existence of fields related to the actual memoized selector
assertType<
[
(state: RootState) => {
id: number
completed: boolean
}[]
]
>(selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.dependencies)
assertType<number[]>(
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.lastResult()
)
assertType<number[]>(
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc(
[{ id: 0, completed: true }]
)
)
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoizedResultFunc()
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.recomputations()
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.resetRecomputations()
// @ts-expect-error
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.resultFunc()
assertType<number[]>(
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.resultFunc([
{ id: 0, completed: true }
])
)
expectTypeOf(
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.memoize
).toEqualTypeOf(microMemoize)
expectTypeOf(
selectorMicroMemoizeArgsMemoizeOptionsFallbackToDefault.argsMemoize
).toEqualTypeOf(weakMapMemoize)
const createSelectorWithWrongArgsMemoizeOptions =
// @ts-expect-error If we don't pass in `argsMemoize`, the type for `argsMemoizeOptions` falls back to the options parameter of `lruMemoize`.
createSelectorCreator({
memoize: microMemoize,
memoizeOptions: { isEqual: (a, b) => a === b },
argsMemoizeOptions: {
isEqual:
// @ts-expect-error implicit any
(a, b) => a === b
}
})
// When passing in an options object as the first argument, there should be no other arguments.
const createSelectorWrong = createSelectorCreator(
{
// @ts-expect-error
memoize: microMemoize,
// @ts-expect-error
memoizeOptions: { isEqual: (a, b) => a === b },
// @ts-expect-error
argsMemoizeOptions: { equalityCheck: (a, b) => a === b }
},
[] // This causes the error.
)
})
test('autotrackMemoize types', () => {
const selector = createSelector(
[(state: RootState) => state.todos],
todos => todos.map(t => t.id),
{ memoize: autotrackMemoize }
)
selector.memoizedResultFunc.clearCache
})
})
|