/
localTypes.ts
174 lines (160 loc) · 7.83 KB
/
localTypes.ts
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const camelCaseText = [
'type CamelCase<S extends string> = S extends `${infer First}-${infer Right}`',
'? Capitalize<Right> extends Right',
'? `${First}-${CamelCase<Capitalize<Right>>}`',
': `${First}${CamelCase<Capitalize<Right>>}`',
': S',
].join('\n');
export function getVueLibraryName(isVue2: boolean) {
return isVue2 ? '@vue/runtime-dom' : 'vue';
}
export function getSlotsPropertyName(isVue2: boolean) {
return isVue2 ? '$scopedSlots' : '$slots';
}
export const typesFileName = '__VLS_types.ts';
export function getTypesCode(isVue2: boolean) {
const libName = getVueLibraryName(isVue2);
const slots = getSlotsPropertyName(isVue2);
return `
import * as vue from '${libName}';
import type {
FunctionalComponent,
HTMLAttributes,
VNodeProps,
AllowedComponentProps,
EmitsOptions,
DefineComponent,
SetupContext,
ObjectDirective,
FunctionDirective,
} from '${libName}';
type IsAny<T> = boolean extends (T extends never ? true : false) ? true : false;
type IsFunctionalComponent<T> = T extends (...args: any) => JSX.Element ? true : false;
type IsConstructorComponent<T> = T extends new (...args: any) => JSX.ElementClass ? true : false;
type IsComponent_Loose<T> = IsConstructorComponent<T> extends false ? IsFunctionalComponent<T> extends false ? false : true : true; // allow any type
type IsComponent_Strict<T> = IsConstructorComponent<T> extends true ? true : IsFunctionalComponent<T> extends true ? true : false; // not allow any type
type ComponentKeys<T> = keyof { [K in keyof T as IsComponent_Loose<T[K]> extends true ? K : never]: any };
export type PickNotAny<A, B> = IsAny<A> extends true ? B : A;
type AnyArray<T = any> = T[] | readonly T[];
type ForableSource<T> = [
T extends { [Symbol.iterator](): IterableIterator<infer T1> } ? T1 : T[keyof T], // item
typeof Symbol.iterator extends keyof T ? number : T extends T ? keyof T : never, // key
typeof Symbol.iterator extends keyof T ? undefined : number, // index
][];
${camelCaseText};
export type GlobalComponents =
PickNotAny<import('vue').GlobalComponents, {}>
& PickNotAny<import('@vue/runtime-dom').GlobalComponents, {}>
& Pick<typeof vue,
'Transition'
| 'TransitionGroup'
| 'KeepAlive'
| 'Suspense'
| 'Teleport'
>;
export declare function getVforSourceType<T>(source: T): ForableSource<NonNullable<T extends number ? number[] : T extends string ? string[] : T>>;
export declare function getNameOption<T>(t?: T): T extends { name: infer N } ? N : undefined;
export declare function directiveFunction<T>(dir: T):
T extends ObjectDirective<infer E, infer V> ? undefined extends V ? (value?: V) => void : (value: V) => void
: T extends FunctionDirective<infer E, infer V> ? undefined extends V ? (value?: V) => void : (value: V) => void
: T;
export type TemplateSlots<T> = T extends { __VLS_slots: infer S } ? S : {};
export type HasTemplateSlotsType<T> = T extends { __VLS_slots: infer _ } ? true : false;
export type HasScriptSlotsType<T> = T extends new (...args: any) => { ${slots}?: infer _ } ? true : false;
export type DefaultSlots<W, R> = HasTemplateSlotsType<W> extends true ? {}
: HasScriptSlotsType<R> extends true ? {}
: Record<string, any>;
export type SlotsComponent<T> = T extends new (...args: any) => { ${slots}?: infer S } ? T : new (...args: any) => { ${slots}: {} };
export type ScriptSlots<T> = T extends { ${slots}?: infer S }
? { [K in keyof S]-?: S[K] extends ((obj: infer O) => any) | undefined ? O : S[K] }
: {};
export type GetComponentName<T, K extends string> = K extends keyof T ? IsAny<T[K]> extends false ? K : GetComponentName_CamelCase<T, CamelCase<K>> : GetComponentName_CamelCase<T, CamelCase<K>>;
export type GetComponentName_CamelCase<T, K extends string> = K extends keyof T ? IsAny<T[K]> extends false ? K : GetComponentName_CapitalCase<T, Capitalize<K>> : GetComponentName_CapitalCase<T, Capitalize<K>>;
export type GetComponentName_CapitalCase<T, K> = K extends keyof T ? K : never;
export type FillingEventArg_ParametersLength<E extends (...args: any) => any> = IsAny<Parameters<E>> extends true ? -1 : Parameters<E>['length'];
export type FillingEventArg<E> = E extends (...args: any) => any ? FillingEventArg_ParametersLength<E> extends 0 ? ($event?: undefined) => ReturnType<E> : E : E;
export type GetProperty<T, K, N = any> = K extends keyof T ? T[K] : N;
export type ComponentContext<T> = T extends new (...args: any) => any ? InstanceType<T> : T extends (...args: any) => any ? ReturnType<T> : T;
export type OptionsSetupReturns<T> = T extends { setup(): infer R } ? R : {};
export type OptionsProps<T> = T extends { props: infer R } ? R : {};
export type SelectComponent<T1, T2> = T1 extends (new (...args: any) => any) ? T1 : T1 extends ((...args: any) => any) ? T1 : T2;
export type ExtractComponentProps<T> =
T extends new (...args: any) => { $props?: infer P1 } ? P1
: T extends FunctionalComponent<infer P2> ? P2
: T
export type ExtractRawComponents<T> = { [K in keyof T]: ExtractRawComponent<T[K]> };
export type ExtractRawComponent<T> = T extends { __VLS_raw: infer C } ? C : T;
export type ExtractEmit2<T> =
T extends FunctionalComponent<infer _, infer E> ? SetupContext<E>['emit']
: T extends new (...args: any) => { $emit: infer Emit } ? Emit
: unknown;
export type ReturnVoid<T> = T extends (...payload: infer P) => any ? (...payload: P) => void : (...args: any) => void;
export type EmitEvent2<F, E> =
F extends {
(event: E, ...payload: infer P): infer R
} ? (...payload: P) => void
: F extends {
(event: E, ...payload: infer P): infer R
(...args: any): any
} ? (...payload: P) => void
: F extends {
(event: E, ...payload: infer P): infer R
(...args: any): any
(...args: any): any
} ? (...payload: P) => void
: F extends {
(event: E, ...payload: infer P): infer R
(...args: any): any
(...args: any): any
(...args: any): any
} ? (...payload: P) => void
: unknown | '[Type Warning] Volar cloud not infer $emit event more than 4 overloads without DefineComponent. see https://github.com/johnsoncodehk/volar/issues/60';
export type EmitEvent<T, E> =
T extends DefineComponent<infer _, any, any, any, any, any, any, infer E2> ? EmitEvent_3<E2, E>
: T extends FunctionalComponent<infer _, infer E2> ? EmitEvent_3<E2, E>
: T extends FunctionalComponent<infer _, infer E> ? EmitEvent2<SetupContext<E>['emit'], E>
: unknown;
export type EmitEvent_3<E2, E> =
EmitsOptions extends E2 ? unknown
: E2 extends AnyArray<infer K> ? (E extends K ? (...args: any) => void : unknown) // emits: ['event-1', 'event-2']
: E extends keyof E2 ? ReturnVoid<E2[E]> // emits: { 'event-1': () => true, 'event-2': () => true }
: unknown
export type FirstFunction<F0, F1> =
NonNullable<F0> extends (Function | AnyArray<Function>) ? F0 :
NonNullable<F1> extends (Function | AnyArray<Function>) ? F1 : unknown;
export type GlobalAttrsBase = VNodeProps & AllowedComponentProps;
export type GlobalAttrs = GlobalAttrsBase & HTMLAttributes;
export type PickComponents<T> = ComponentKeys<T> extends keyof T ? Pick<T, ComponentKeys<T>> : T;
export type ConvertInvalidComponents<T> = { [K in keyof T]: IsComponent_Strict<T[K]> extends true ? T[K] : any };
export type SelfComponent<N, C> = string extends N ? {} : N extends string ? { [P in N]: C } : {};
`;
}
// TODO: not working for overloads > n (n = 8)
// see: https://github.com/johnsoncodehk/volar/issues/60
export function genConstructorOverloads(name = 'ConstructorOverloads', nums?: number) {
let code = `type ${name}<T> =\n`;
if (nums === undefined) {
for (let i = 8; i >= 1; i--) {
gen(i);
}
}
else {
gen(nums);
}
code += `// 0\n`
code += `{};\n`
return code;
function gen(i: number) {
code += `// ${i}\n`;
code += `T extends {\n`;
for (let j = 1; j <= i; j++) {
code += `(event: infer E${j}, ...payload: infer P${j}): void;\n`
}
code += `} ? (\n`
for (let j = 1; j <= i; j++) {
if (j > 1) code += '& ';
code += `(E${j} extends string ? { [K${j} in E${j}]: (...payload: P${j}) => void } : {})\n`;
}
code += `) :\n`;
}
}