@neo-one/smart-contract-codegen-esnext-esm/utils/toTypeScriptType.js

NEO•ONE TypeScript smart contract codegen.

import { utils } from '@neo-one/utils-esnext-esm';
export const toTypeScriptType = (abi, { isParameter, includeOptional = true, migration = false }) => {
    const addOptional = (value) => (includeOptional && abi.optional ? `${value} | undefined` : value);
    const addMigration = (value) => (migration ? `(${value} | Promise<${value}>)` : value);
    const addOptions = (value) => addMigration(addOptional(value));
    switch (abi.type) {
        case 'Signature':
            return addOptions('SignatureString');
        case 'Boolean':
            return addOptions('boolean');
        case 'Address':
            return addOptions('AddressString');
        case 'Hash256':
            return addOptions('Hash256String');
        case 'Buffer':
            return addOptions('BufferString');
        case 'PublicKey':
            return addOptions('PublicKeyString');
        case 'String':
            return addOptions('string');
        case 'Array':
            return addOptions(`Array<${toTypeScriptType(abi.value, { isParameter })}>`);
        case 'Map':
            return addOptions(`Map<${toTypeScriptType(abi.key, { isParameter })}, ${toTypeScriptType(abi.value, { isParameter })}>`);
        case 'Object':
            return addOptions(`{
      ${Object.entries(abi.properties)
                .reduce((acc, [key, val]) => acc.concat([`readonly '${key}': ${toTypeScriptType(val, { isParameter })}`]), [])
                .join('\n')}
    }`);
        case 'Void':
            return 'undefined';
        case 'Integer':
            return addOptions('BigNumber');
        case 'ForwardValue':
            return isParameter ? addOptions('ForwardValue') : addOptions('ContractParameter');
        default:
            utils.assertNever(abi);
            throw new Error('Something went wrong');
    }
};

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