@chainsafe/ssz
Version:
Simple Serialize
32 lines (31 loc) • 1.92 kB
TypeScript
import { Gindex, Tree } from "@chainsafe/persistent-merkle-tree";
import { Type, ValueOf } from "../type/abstract.ts";
import { BasicType } from "../type/basic.ts";
import { CompositeType } from "../type/composite.ts";
import { NonOptionalFields } from "../type/optional.ts";
import { TreeView } from "./abstract.ts";
export type FieldEntry<Fields extends Record<string, Type<unknown>>> = {
fieldName: keyof Fields;
fieldType: Fields[keyof Fields];
jsonKey: string;
gindex: Gindex;
};
/** Expected API of this View's type. This interface allows to break a recursive dependency between types and views */
export type BasicContainerTypeGeneric<Fields extends Record<string, Type<unknown>>> = CompositeType<ValueOfFields<Fields>, ContainerTreeViewType<Fields>, unknown> & {
readonly fields: Fields;
readonly fieldsEntries: (FieldEntry<Fields> | FieldEntry<NonOptionalFields<Fields>>)[];
};
export type ContainerTypeGeneric<Fields extends Record<string, Type<unknown>>> = BasicContainerTypeGeneric<Fields> & {
readonly fixedEnd: number;
};
export type ValueOfFields<Fields extends Record<string, Type<unknown>>> = {
[K in keyof Fields]: ValueOf<Fields[K]>;
};
export type FieldsView<Fields extends Record<string, Type<unknown>>> = {
[K in keyof Fields]: Fields[K] extends CompositeType<unknown, infer TV, unknown> ? TV : Fields[K] extends BasicType<infer V> ? V : never;
};
export type ContainerTreeViewType<Fields extends Record<string, Type<unknown>>> = FieldsView<Fields> & TreeView<BasicContainerTypeGeneric<Fields>>;
export type ContainerTreeViewTypeConstructor<Fields extends Record<string, Type<unknown>>> = {
new (type: ContainerTypeGeneric<Fields>, tree: Tree): ContainerTreeViewType<Fields>;
};
export declare function getContainerTreeViewClass<Fields extends Record<string, Type<unknown>>>(type: ContainerTypeGeneric<Fields>): ContainerTreeViewTypeConstructor<Fields>;