typechain
Version:
🔌 TypeScript bindings for Ethereum smartcontracts
69 lines • 3.23 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.createBarrelFiles = void 0;
const lodash_1 = require("lodash");
const path_1 = require("path");
const normalizeName_1 = require("../parser/normalizeName");
const normalizeDirName_1 = require("./normalizeDirName");
/**
* returns barrel files with reexports for all given paths
*
* @see https://github.com/basarat/typescript-book/blob/master/docs/tips/barrel.md
*/
function createBarrelFiles(paths, { typeOnly, postfix = '', moduleSuffix = '' }) {
const fileReexports = (0, lodash_1.mapValues)((0, lodash_1.groupBy)(paths.map(path_1.posix.parse), (p) => p.dir), (ps) => ps.map((p) => p.name));
const directoryPaths = Object.keys(fileReexports).filter((path) => path.includes('/'));
const directoryReexports = (0, lodash_1.mapValues)((0, lodash_1.groupBy)(directoryPaths.map(path_1.posix.parse), (p) => p.dir), (ps) => ps.map((p) => p.base));
const barrelPaths = new Set(Object.keys(directoryReexports).concat(Object.keys(fileReexports)));
const newPaths = [];
for (const directory of barrelPaths) {
if (!directory)
continue;
const path = directory.split('/');
while (path.length) {
const dir = path.slice(0, -1).join('/');
const name = path[path.length - 1];
if (!(dir in directoryReexports)) {
directoryReexports[dir] = [name];
newPaths.push(dir);
}
else if (!directoryReexports[dir].find((x) => x === name)) {
directoryReexports[dir].push(name);
}
path.pop();
}
}
return (0, lodash_1.uniq)([...barrelPaths, ...newPaths]).map((path) => {
const nestedDirs = (directoryReexports[path] || []).sort();
const namespacesExports = nestedDirs
.map((p) => {
const namespaceIdentifier = (0, normalizeDirName_1.normalizeDirName)(p);
if (typeOnly)
return [
`import type * as ${namespaceIdentifier} from './${p}';`,
`export type { ${namespaceIdentifier} };`,
].join('\n');
if (moduleSuffix) {
return `export * as ${namespaceIdentifier} from './${p}/index${moduleSuffix}';`;
}
return `export * as ${namespaceIdentifier} from './${p}';`;
})
.join('\n');
const contracts = (fileReexports[path] || []).sort();
const namedExports = contracts
.map((p) => {
const exportKeyword = typeOnly ? 'export type' : 'export';
const name = `${(0, normalizeName_1.normalizeName)(p)}${postfix}`;
// We can't always `export *` because of possible name conflicts.
// @todo possibly a config option for user to decide?
return `${exportKeyword} { ${name} } from './${name}${moduleSuffix}';`;
})
.join('\n');
return {
path: path_1.posix.join(path, 'index.ts'),
contents: (namespacesExports + '\n' + namedExports).trim(),
};
});
}
exports.createBarrelFiles = createBarrelFiles;
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