738 lines
18 KiB
TypeScript
738 lines
18 KiB
TypeScript
import {
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ComponentInternalInstance,
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Data,
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SetupContext,
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ComponentInternalOptions,
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PublicAPIComponent,
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Component
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} from './component'
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import {
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isFunction,
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extend,
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isString,
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isObject,
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isArray,
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EMPTY_OBJ,
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NOOP,
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hasOwn,
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isPromise
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} from '@vue/shared'
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import { computed } from './apiComputed'
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import { watch, WatchOptions, WatchCallback } from './apiWatch'
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import { provide, inject } from './apiInject'
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import {
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onBeforeMount,
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onMounted,
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onBeforeUpdate,
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onUpdated,
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onErrorCaptured,
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onRenderTracked,
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onBeforeUnmount,
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onUnmounted,
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onActivated,
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onDeactivated,
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onRenderTriggered,
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DebuggerHook,
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ErrorCapturedHook
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} from './apiLifecycle'
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import {
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reactive,
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ComputedGetter,
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WritableComputedOptions,
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toRaw
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} from '@vue/reactivity'
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import {
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ComponentObjectPropsOptions,
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ExtractPropTypes,
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normalizePropsOptions
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} from './componentProps'
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import { EmitsOptions } from './componentEmits'
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import { Directive } from './directives'
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import {
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CreateComponentPublicInstance,
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ComponentPublicInstance
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} from './componentProxy'
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import { warn } from './warning'
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import { VNodeChild } from './vnode'
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/**
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* Interface for declaring custom options.
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*
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* @example
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* ```ts
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* declare module '@vue/runtime-core' {
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* interface ComponentCustomOptions {
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* beforeRouteUpdate?(
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* to: Route,
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* from: Route,
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* next: () => void
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* ): void
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* }
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* }
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* ```
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*/
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export interface ComponentCustomOptions {}
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export type RenderFunction = () => VNodeChild
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export interface ComponentOptionsBase<
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Props,
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RawBindings,
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D,
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C extends ComputedOptions,
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M extends MethodOptions,
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Mixin extends ComponentOptionsMixin,
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Extends extends ComponentOptionsMixin,
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E extends EmitsOptions,
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EE extends string = string
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>
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extends LegacyOptions<Props, D, C, M, Mixin, Extends>,
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ComponentInternalOptions,
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ComponentCustomOptions {
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setup?: (
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this: void,
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props: Props,
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ctx: SetupContext<E>
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) => RawBindings | RenderFunction | void
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name?: string
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template?: string | object // can be a direct DOM node
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// Note: we are intentionally using the signature-less `Function` type here
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// since any type with signature will cause the whole inference to fail when
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// the return expression contains reference to `this`.
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// Luckily `render()` doesn't need any arguments nor does it care about return
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// type.
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render?: Function
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components?: Record<string, PublicAPIComponent>
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directives?: Record<string, Directive>
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inheritAttrs?: boolean
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emits?: E | EE[]
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// Internal ------------------------------------------------------------------
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/**
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* SSR only. This is produced by compiler-ssr and attached in compiler-sfc
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* not user facing, so the typing is lax and for test only.
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*
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* @internal
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*/
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ssrRender?: (
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ctx: any,
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push: (item: any) => void,
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parentInstance: ComponentInternalInstance,
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attrs: Data | undefined,
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// for compiler-optimized bindings
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$props: ComponentInternalInstance['props'],
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$setup: ComponentInternalInstance['setupState'],
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$data: ComponentInternalInstance['data'],
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$options: ComponentInternalInstance['ctx']
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) => void
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/**
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* marker for AsyncComponentWrapper
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* @internal
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*/
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__asyncLoader?: () => Promise<Component>
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/**
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* cache for merged $options
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* @internal
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*/
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__merged?: ComponentOptions
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// Type differentiators ------------------------------------------------------
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// Note these are internal but need to be exposed in d.ts for type inference
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// to work!
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// type-only differentiator to separate OptionWithoutProps from a constructor
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// type returned by defineComponent() or FunctionalComponent
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call?: (this: unknown, ...args: unknown[]) => never
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// type-only differentiators for built-in Vnode types
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__isFragment?: never
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__isTeleport?: never
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__isSuspense?: never
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}
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export type ComponentOptionsWithoutProps<
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Props = {},
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RawBindings = {},
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D = {},
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C extends ComputedOptions = {},
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M extends MethodOptions = {},
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Mixin extends ComponentOptionsMixin = ComponentOptionsMixin,
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Extends extends ComponentOptionsMixin = ComponentOptionsMixin,
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E extends EmitsOptions = EmitsOptions,
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EE extends string = string
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> = ComponentOptionsBase<Props, RawBindings, D, C, M, Mixin, Extends, E, EE> & {
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props?: undefined
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} & ThisType<
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CreateComponentPublicInstance<
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{},
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RawBindings,
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D,
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C,
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M,
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Mixin,
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Extends,
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E,
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Readonly<Props>
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>
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>
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export type ComponentOptionsWithArrayProps<
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PropNames extends string = string,
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RawBindings = {},
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D = {},
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C extends ComputedOptions = {},
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M extends MethodOptions = {},
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Mixin extends ComponentOptionsMixin = ComponentOptionsMixin,
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Extends extends ComponentOptionsMixin = ComponentOptionsMixin,
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E extends EmitsOptions = EmitsOptions,
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EE extends string = string,
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Props = Readonly<{ [key in PropNames]?: any }>
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> = ComponentOptionsBase<Props, RawBindings, D, C, M, Mixin, Extends, E, EE> & {
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props: PropNames[]
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} & ThisType<
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CreateComponentPublicInstance<
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Props,
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RawBindings,
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D,
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C,
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M,
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Mixin,
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Extends,
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E
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>
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>
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export type ComponentOptionsWithObjectProps<
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PropsOptions = ComponentObjectPropsOptions,
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RawBindings = {},
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D = {},
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C extends ComputedOptions = {},
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M extends MethodOptions = {},
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Mixin extends ComponentOptionsMixin = ComponentOptionsMixin,
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Extends extends ComponentOptionsMixin = ComponentOptionsMixin,
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E extends EmitsOptions = EmitsOptions,
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EE extends string = string,
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Props = Readonly<ExtractPropTypes<PropsOptions>>
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> = ComponentOptionsBase<Props, RawBindings, D, C, M, Mixin, Extends, E, EE> & {
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props: PropsOptions
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} & ThisType<
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CreateComponentPublicInstance<
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Props,
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RawBindings,
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D,
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C,
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M,
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Mixin,
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Extends,
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E
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>
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>
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export type ComponentOptions =
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| ComponentOptionsWithoutProps<any, any, any, any, any>
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| ComponentOptionsWithObjectProps<any, any, any, any, any>
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| ComponentOptionsWithArrayProps<any, any, any, any, any>
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export type ComponentOptionsMixin = ComponentOptionsBase<
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any,
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any,
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any,
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any,
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any,
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any,
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any,
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any,
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any
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>
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export type ComputedOptions = Record<
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string,
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ComputedGetter<any> | WritableComputedOptions<any>
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>
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export interface MethodOptions {
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[key: string]: Function
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}
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export type ExtractComputedReturns<T extends any> = {
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[key in keyof T]: T[key] extends { get: (...args: any[]) => infer TReturn }
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? TReturn
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: T[key] extends (...args: any[]) => infer TReturn ? TReturn : never
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}
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type WatchOptionItem =
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| string
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| WatchCallback
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| { handler: WatchCallback } & WatchOptions
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type ComponentWatchOptionItem = WatchOptionItem | WatchOptionItem[]
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type ComponentWatchOptions = Record<string, ComponentWatchOptionItem>
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type ComponentInjectOptions =
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| string[]
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| Record<
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string | symbol,
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string | symbol | { from: string | symbol; default?: unknown }
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>
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interface LegacyOptions<
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Props,
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D,
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C extends ComputedOptions,
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M extends MethodOptions,
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Mixin extends ComponentOptionsMixin,
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Extends extends ComponentOptionsMixin
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> {
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// allow any custom options
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[key: string]: any
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// state
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// Limitation: we cannot expose RawBindings on the `this` context for data
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// since that leads to some sort of circular inference and breaks ThisType
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// for the entire component.
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data?: (
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this: CreateComponentPublicInstance<Props>,
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vm: CreateComponentPublicInstance<Props>
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) => D
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computed?: C
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methods?: M
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watch?: ComponentWatchOptions
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provide?: Data | Function
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inject?: ComponentInjectOptions
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// composition
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mixins?: Mixin[]
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extends?: Extends
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// lifecycle
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beforeCreate?(): void
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created?(): void
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beforeMount?(): void
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mounted?(): void
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beforeUpdate?(): void
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updated?(): void
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activated?(): void
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deactivated?(): void
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beforeUnmount?(): void
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unmounted?(): void
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renderTracked?: DebuggerHook
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renderTriggered?: DebuggerHook
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errorCaptured?: ErrorCapturedHook
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}
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export type OptionTypesKeys = 'P' | 'B' | 'D' | 'C' | 'M'
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export type OptionTypesType<
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P = {},
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B = {},
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D = {},
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C extends ComputedOptions = {},
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M extends MethodOptions = {}
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> = {
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P: P
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B: B
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D: D
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C: C
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M: M
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}
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const enum OptionTypes {
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PROPS = 'Props',
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DATA = 'Data',
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COMPUTED = 'Computed',
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METHODS = 'Methods',
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INJECT = 'Inject'
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}
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function createDuplicateChecker() {
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const cache = Object.create(null)
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return (type: OptionTypes, key: string) => {
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if (cache[key]) {
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warn(`${type} property "${key}" is already defined in ${cache[key]}.`)
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} else {
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cache[key] = type
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}
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}
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}
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type DataFn = (vm: ComponentPublicInstance) => any
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export function applyOptions(
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instance: ComponentInternalInstance,
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options: ComponentOptions,
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deferredData: DataFn[] = [],
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deferredWatch: ComponentWatchOptions[] = [],
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asMixin: boolean = false
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) {
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const {
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// composition
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mixins,
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extends: extendsOptions,
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// state
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data: dataOptions,
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computed: computedOptions,
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methods,
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watch: watchOptions,
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provide: provideOptions,
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inject: injectOptions,
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// assets
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components,
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directives,
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// lifecycle
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beforeMount,
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mounted,
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beforeUpdate,
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updated,
|
|
activated,
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|
deactivated,
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|
beforeUnmount,
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|
unmounted,
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|
renderTracked,
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renderTriggered,
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|
errorCaptured
|
|
} = options
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const publicThis = instance.proxy!
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const ctx = instance.ctx
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const globalMixins = instance.appContext.mixins
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// call it only during dev
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// applyOptions is called non-as-mixin once per instance
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if (!asMixin) {
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callSyncHook('beforeCreate', options, publicThis, globalMixins)
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// global mixins are applied first
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applyMixins(instance, globalMixins, deferredData, deferredWatch)
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}
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// extending a base component...
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if (extendsOptions) {
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applyOptions(instance, extendsOptions, deferredData, deferredWatch, true)
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}
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// local mixins
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if (mixins) {
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applyMixins(instance, mixins, deferredData, deferredWatch)
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}
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|
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const checkDuplicateProperties = __DEV__ ? createDuplicateChecker() : null
|
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|
|
if (__DEV__) {
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const propsOptions = normalizePropsOptions(options)[0]
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|
if (propsOptions) {
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for (const key in propsOptions) {
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checkDuplicateProperties!(OptionTypes.PROPS, key)
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}
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|
}
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|
}
|
|
|
|
// options initialization order (to be consistent with Vue 2):
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// - props (already done outside of this function)
|
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// - inject
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// - methods
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// - data (deferred since it relies on `this` access)
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// - computed
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// - watch (deferred since it relies on `this` access)
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|
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if (injectOptions) {
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if (isArray(injectOptions)) {
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for (let i = 0; i < injectOptions.length; i++) {
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const key = injectOptions[i]
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ctx[key] = inject(key)
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if (__DEV__) {
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checkDuplicateProperties!(OptionTypes.INJECT, key)
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}
|
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}
|
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} else {
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|
for (const key in injectOptions) {
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const opt = injectOptions[key]
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if (isObject(opt)) {
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ctx[key] = inject(opt.from, opt.default)
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} else {
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ctx[key] = inject(opt)
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}
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if (__DEV__) {
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checkDuplicateProperties!(OptionTypes.INJECT, key)
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}
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}
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}
|
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}
|
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|
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if (methods) {
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for (const key in methods) {
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const methodHandler = (methods as MethodOptions)[key]
|
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if (isFunction(methodHandler)) {
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ctx[key] = methodHandler.bind(publicThis)
|
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if (__DEV__) {
|
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checkDuplicateProperties!(OptionTypes.METHODS, key)
|
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}
|
|
} else if (__DEV__) {
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warn(
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`Method "${key}" has type "${typeof methodHandler}" in the component definition. ` +
|
|
`Did you reference the function correctly?`
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dataOptions) {
|
|
if (__DEV__ && !isFunction(dataOptions)) {
|
|
warn(
|
|
`The data option must be a function. ` +
|
|
`Plain object usage is no longer supported.`
|
|
)
|
|
}
|
|
|
|
if (asMixin) {
|
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deferredData.push(dataOptions as DataFn)
|
|
} else {
|
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resolveData(instance, dataOptions, publicThis)
|
|
}
|
|
}
|
|
if (!asMixin) {
|
|
if (deferredData.length) {
|
|
deferredData.forEach(dataFn => resolveData(instance, dataFn, publicThis))
|
|
}
|
|
if (__DEV__) {
|
|
const rawData = toRaw(instance.data)
|
|
for (const key in rawData) {
|
|
checkDuplicateProperties!(OptionTypes.DATA, key)
|
|
// expose data on ctx during dev
|
|
if (key[0] !== '$' && key[0] !== '_') {
|
|
Object.defineProperty(ctx, key, {
|
|
configurable: true,
|
|
enumerable: true,
|
|
get: () => rawData[key],
|
|
set: NOOP
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (computedOptions) {
|
|
for (const key in computedOptions) {
|
|
const opt = (computedOptions as ComputedOptions)[key]
|
|
const get = isFunction(opt)
|
|
? opt.bind(publicThis, publicThis)
|
|
: isFunction(opt.get)
|
|
? opt.get.bind(publicThis, publicThis)
|
|
: NOOP
|
|
if (__DEV__ && get === NOOP) {
|
|
warn(`Computed property "${key}" has no getter.`)
|
|
}
|
|
const set =
|
|
!isFunction(opt) && isFunction(opt.set)
|
|
? opt.set.bind(publicThis)
|
|
: __DEV__
|
|
? () => {
|
|
warn(
|
|
`Write operation failed: computed property "${key}" is readonly.`
|
|
)
|
|
}
|
|
: NOOP
|
|
const c = computed({
|
|
get,
|
|
set
|
|
})
|
|
Object.defineProperty(ctx, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: () => c.value,
|
|
set: v => (c.value = v)
|
|
})
|
|
if (__DEV__) {
|
|
checkDuplicateProperties!(OptionTypes.COMPUTED, key)
|
|
}
|
|
}
|
|
}
|
|
|
|
if (watchOptions) {
|
|
deferredWatch.push(watchOptions)
|
|
}
|
|
if (!asMixin && deferredWatch.length) {
|
|
deferredWatch.forEach(watchOptions => {
|
|
for (const key in watchOptions) {
|
|
createWatcher(watchOptions[key], ctx, publicThis, key)
|
|
}
|
|
})
|
|
}
|
|
|
|
if (provideOptions) {
|
|
const provides = isFunction(provideOptions)
|
|
? provideOptions.call(publicThis)
|
|
: provideOptions
|
|
for (const key in provides) {
|
|
provide(key, provides[key])
|
|
}
|
|
}
|
|
|
|
// asset options
|
|
if (components) {
|
|
extend(instance.components, components)
|
|
}
|
|
if (directives) {
|
|
extend(instance.directives, directives)
|
|
}
|
|
|
|
// lifecycle options
|
|
if (!asMixin) {
|
|
callSyncHook('created', options, publicThis, globalMixins)
|
|
}
|
|
if (beforeMount) {
|
|
onBeforeMount(beforeMount.bind(publicThis))
|
|
}
|
|
if (mounted) {
|
|
onMounted(mounted.bind(publicThis))
|
|
}
|
|
if (beforeUpdate) {
|
|
onBeforeUpdate(beforeUpdate.bind(publicThis))
|
|
}
|
|
if (updated) {
|
|
onUpdated(updated.bind(publicThis))
|
|
}
|
|
if (activated) {
|
|
onActivated(activated.bind(publicThis))
|
|
}
|
|
if (deactivated) {
|
|
onDeactivated(deactivated.bind(publicThis))
|
|
}
|
|
if (errorCaptured) {
|
|
onErrorCaptured(errorCaptured.bind(publicThis))
|
|
}
|
|
if (renderTracked) {
|
|
onRenderTracked(renderTracked.bind(publicThis))
|
|
}
|
|
if (renderTriggered) {
|
|
onRenderTriggered(renderTriggered.bind(publicThis))
|
|
}
|
|
if (beforeUnmount) {
|
|
onBeforeUnmount(beforeUnmount.bind(publicThis))
|
|
}
|
|
if (unmounted) {
|
|
onUnmounted(unmounted.bind(publicThis))
|
|
}
|
|
}
|
|
|
|
function callSyncHook(
|
|
name: 'beforeCreate' | 'created',
|
|
options: ComponentOptions,
|
|
ctx: ComponentPublicInstance,
|
|
globalMixins: ComponentOptions[]
|
|
) {
|
|
callHookFromMixins(name, globalMixins, ctx)
|
|
const baseHook = options.extends && options.extends[name]
|
|
if (baseHook) {
|
|
baseHook.call(ctx)
|
|
}
|
|
const mixins = options.mixins
|
|
if (mixins) {
|
|
callHookFromMixins(name, mixins, ctx)
|
|
}
|
|
const selfHook = options[name]
|
|
if (selfHook) {
|
|
selfHook.call(ctx)
|
|
}
|
|
}
|
|
|
|
function callHookFromMixins(
|
|
name: 'beforeCreate' | 'created',
|
|
mixins: ComponentOptions[],
|
|
ctx: ComponentPublicInstance
|
|
) {
|
|
for (let i = 0; i < mixins.length; i++) {
|
|
const fn = mixins[i][name]
|
|
if (fn) {
|
|
fn.call(ctx)
|
|
}
|
|
}
|
|
}
|
|
|
|
function applyMixins(
|
|
instance: ComponentInternalInstance,
|
|
mixins: ComponentOptions[],
|
|
deferredData: DataFn[],
|
|
deferredWatch: ComponentWatchOptions[]
|
|
) {
|
|
for (let i = 0; i < mixins.length; i++) {
|
|
applyOptions(instance, mixins[i], deferredData, deferredWatch, true)
|
|
}
|
|
}
|
|
|
|
function resolveData(
|
|
instance: ComponentInternalInstance,
|
|
dataFn: DataFn,
|
|
publicThis: ComponentPublicInstance
|
|
) {
|
|
const data = dataFn.call(publicThis, publicThis)
|
|
if (__DEV__ && isPromise(data)) {
|
|
warn(
|
|
`data() returned a Promise - note data() cannot be async; If you ` +
|
|
`intend to perform data fetching before component renders, use ` +
|
|
`async setup() + <Suspense>.`
|
|
)
|
|
}
|
|
if (!isObject(data)) {
|
|
__DEV__ && warn(`data() should return an object.`)
|
|
} else if (instance.data === EMPTY_OBJ) {
|
|
instance.data = reactive(data)
|
|
} else {
|
|
// existing data: this is a mixin or extends.
|
|
extend(instance.data, data)
|
|
}
|
|
}
|
|
|
|
function createWatcher(
|
|
raw: ComponentWatchOptionItem,
|
|
ctx: Data,
|
|
publicThis: ComponentPublicInstance,
|
|
key: string
|
|
) {
|
|
const getter = () => (publicThis as any)[key]
|
|
if (isString(raw)) {
|
|
const handler = ctx[raw]
|
|
if (isFunction(handler)) {
|
|
watch(getter, handler as WatchCallback)
|
|
} else if (__DEV__) {
|
|
warn(`Invalid watch handler specified by key "${raw}"`, handler)
|
|
}
|
|
} else if (isFunction(raw)) {
|
|
watch(getter, raw.bind(publicThis))
|
|
} else if (isObject(raw)) {
|
|
if (isArray(raw)) {
|
|
raw.forEach(r => createWatcher(r, ctx, publicThis, key))
|
|
} else {
|
|
watch(getter, raw.handler.bind(publicThis), raw)
|
|
}
|
|
} else if (__DEV__) {
|
|
warn(`Invalid watch option: "${key}"`)
|
|
}
|
|
}
|
|
|
|
export function resolveMergedOptions(
|
|
instance: ComponentInternalInstance
|
|
): ComponentOptions {
|
|
const raw = instance.type as ComponentOptions
|
|
const { __merged, mixins, extends: extendsOptions } = raw
|
|
if (__merged) return __merged
|
|
const globalMixins = instance.appContext.mixins
|
|
if (!globalMixins.length && !mixins && !extendsOptions) return raw
|
|
const options = {}
|
|
globalMixins.forEach(m => mergeOptions(options, m, instance))
|
|
extendsOptions && mergeOptions(options, extendsOptions, instance)
|
|
mixins && mixins.forEach(m => mergeOptions(options, m, instance))
|
|
mergeOptions(options, raw, instance)
|
|
return (raw.__merged = options)
|
|
}
|
|
|
|
function mergeOptions(to: any, from: any, instance: ComponentInternalInstance) {
|
|
const strats = instance.appContext.config.optionMergeStrategies
|
|
for (const key in from) {
|
|
if (strats && hasOwn(strats, key)) {
|
|
to[key] = strats[key](to[key], from[key], instance.proxy, key)
|
|
} else if (!hasOwn(to, key)) {
|
|
to[key] = from[key]
|
|
}
|
|
}
|
|
}
|