42 lines
1.6 KiB
TypeScript
42 lines
1.6 KiB
TypeScript
// Copyright 2017-2023 @polkadot/api-contract authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { ContractMetadataLatest, ContractMetadataV4 } from '@polkadot/types/interfaces';
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import type { Registry } from '@polkadot/types/types';
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import { v0ToV1 } from './toV1.js';
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import { v1ToV2 } from './toV2.js';
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import { v2ToV3 } from './toV3.js';
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import { v3ToV4 } from './toV4.js';
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// The versions where an enum is used, aka V0 is missing
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// (Order from newest, i.e. we expect more on newest vs oldest)
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export const enumVersions = ['V4', 'V3', 'V2', 'V1'] as const;
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type Versions = typeof enumVersions[number] | 'V0';
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type Converter = (registry: Registry, vx: any) => ContractMetadataLatest;
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// Helper to convert metadata from one step to the next
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function createConverter <I, O> (next: (registry: Registry, input: O) => ContractMetadataLatest, step: (registry: Registry, input: I) => O): (registry: Registry, input: I) => ContractMetadataLatest {
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return (registry: Registry, input: I): ContractMetadataLatest =>
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next(registry, step(registry, input));
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}
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export function v4ToLatest (_registry: Registry, v4: ContractMetadataV4): ContractMetadataLatest {
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return v4;
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}
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export const v3ToLatest = /*#__PURE__*/ createConverter(v4ToLatest, v3ToV4);
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export const v2ToLatest = /*#__PURE__*/ createConverter(v3ToLatest, v2ToV3);
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export const v1ToLatest = /*#__PURE__*/ createConverter(v2ToLatest, v1ToV2);
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export const v0ToLatest = /*#__PURE__*/ createConverter(v1ToLatest, v0ToV1);
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export const convertVersions: [Versions, Converter][] = [
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['V4', v4ToLatest],
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['V3', v3ToLatest],
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['V2', v2ToLatest],
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['V1', v1ToLatest],
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['V0', v0ToLatest]
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];
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