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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/ox/core
Просмотр файла: RpcSchema.ts

import type { ResolvedRegister } from './internal/register.js'
import type { Compute, IsNarrowable } from './internal/types.js'

export type { Eth } from './internal/rpcSchemas/eth.js'
export type { Wallet } from './internal/rpcSchemas/wallet.js'

/**
 * Instantiates a statically typed Schema. This is a runtime-noop function, and is purposed
 * to be used as a type-level tag to be used with {@link ox#Provider.(from:function)} or
 * {@link ox#RpcTransport.(fromHttp:function)}.
 *
 * @example
 * ### Using with `Provider.from`
 *
 * ```ts twoslash
 * // @noErrors
 * import 'ox/window'
 * import { Provider, RpcSchema } from 'ox'
 *
 * const schema = RpcSchema.from<
 *   | RpcSchema.Default
 *   | {
 *       Request: {
 *         method: 'abe_foo',
 *         params: [id: number],
 *       }
 *       ReturnType: string
 *     }
 *   | {
 *       Request: {
 *         method: 'abe_bar',
 *         params: [id: string],
 *       }
 *       ReturnType: string
 *     }
 * >()
 *
 * const provider = Provider.from(window.ethereum, { schema })
 *
 * const blockNumber = await provider.request({ method: 'e' })
 * //                                                    ^|
 *
 *
 *
 *
 *
 * ```
 */
export function from<schema extends Generic>(): schema {
  return null as never
}

/**
 * Extracts a schema item from a {@link ox#RpcSchema.Generic} or {@link ox#RpcSchema.MethodNameGeneric}.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type Item = RpcSchema.ExtractItem<RpcSchema.Eth, 'eth_getBlockByNumber'>
 * //   ^?
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 * ```
 */
export type ExtractItem<
  schema extends Generic,
  methodName extends MethodNameGeneric<schema> = MethodNameGeneric<schema>,
> = Compute<{
  Request: ExtractRequest<schema, methodName>
  ReturnType: ExtractReturnType<schema, methodName>
}>

/**
 * Extracts request from a {@link ox#RpcSchema.Generic} or {@link ox#RpcSchema.MethodNameGeneric}.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type Request = RpcSchema.ExtractRequest<RpcSchema.Eth, 'eth_getBlockByNumber'>
 * //   ^?
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 * ```
 */
export type ExtractRequest<
  schema extends Generic,
  methodName extends MethodNameGeneric<schema> = MethodNameGeneric<schema>,
> = Extract<schema['Request'], { method: methodName }>

/**
 * Type-safe union of all JSON-RPC Method Names.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type MethodName = RpcSchema.ExtractMethodName<RpcSchema.Default>
 * //   ^?
 *
 *
 *
 *
 *
 *
 *
 *
 * ```
 */
export type ExtractMethodName<schema extends Generic> =
  schema['Request']['method']

/**
 * Extracts parameters from a {@link ox#RpcSchema.Generic} or {@link ox#RpcSchema.MethodNameGeneric}.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type Eth_GetBlockByNumber = RpcSchema.ExtractParams<RpcSchema.Eth, 'eth_getBlockByNumber'>
 * //   ^?
 *
 *
 *
 *
 *
 * ```
 */
export type ExtractParams<
  schema extends Generic,
  methodName extends MethodNameGeneric<schema> = MethodNameGeneric<schema>,
> = ExtractRequest<schema, methodName>['params']

/**
 * Extracts return type from a {@link ox#RpcSchema.Generic} or {@link ox#RpcSchema.MethodNameGeneric}.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type ReturnType = RpcSchema.ExtractReturnType<RpcSchema.Eth, 'eth_getBlockByNumber'>
 * //   ^?
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 * ```
 */
export type ExtractReturnType<
  schema extends Generic,
  methodName extends MethodNameGeneric<schema> = MethodNameGeneric<schema>,
> = methodName extends schema['Request']['method']
  ? IsNarrowable<schema, Generic> extends true
    ? Extract<schema, { Request: { method: methodName } }>['ReturnType']
    : unknown
  : unknown

/**
 * Type to define a custom type-safe JSON-RPC Schema.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema, RpcRequest } from 'ox'
 *
 * type Schema = RpcSchema.From<{
 *   Request: {
 *     method: 'eth_foobar',
 *     params: [id: number],
 *   }
 *   ReturnType: string
 * }>
 * ```
 */
export type From<schema extends Generic> = schema

/**
 * Generic type to define a JSON-RPC Method.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type Schema = RpcSchema.Generic
 * //   ^?
 *
 *
 *
 *
 *
 *
 * ```
 */
export type Generic<name extends string = string, params = unknown> = {
  Request: {
    method: name
    params?: params | undefined
  }
  ReturnType?: unknown
}

/**
 * Type-safe union of all JSON-RPC Methods.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type Schema = RpcSchema.Default
 * //   ^?
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 * ```
 */
export type Default = ResolvedRegister['RpcSchema']

/**
 * Generic type to define a JSON-RPC Method Name.
 *
 * @example
 * ```ts twoslash
 * import { RpcSchema } from 'ox'
 *
 * type Name = RpcSchema.MethodNameGeneric
 * //   ^?
 *
 *
 *
 *
 *
 * ```
 */
export type MethodNameGeneric<schema extends Generic = Generic> =
  | schema['Request']['method']
  | (string & {})
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