pg-proto-parser

import { PgProtoParser } from 'pg-proto-parser'; import { readFileSync, mkdirSync, writeFileSync } from 'fs'; import { resolve } from 'path'; const protoContent = ` syntax = "proto3"; package pg_query; message Node { int32 location = 1; } message A_Const { Node node = 1; oneof val { int64 ival = 2; // integer bool bval = 3; // boolean string sval = 4; // string } int32 location = 5; } `; // Create a dummy proto file for parsing demonstration const tempDir = resolve(__dirname, './temp-proto-output'); mkdirSync(tempDir, { recursive: true }); const tempProtoFile = resolve(tempDir, 'dummy.proto'); writeFileSync(tempProtoFile, protoContent); async function generatePgProtoTypes() { try { // In a real application, 'inFile' would point to the libpg_query proto definitions. // For this example, we use our dummy proto file. const parser = new PgProtoParser(tempProtoFile, { outDir: tempDir, enums: { enumMap: { enabled: true, format: 'ts', toIntOutFile: 'enum-to-int.ts', toStrOutFile: 'enum-to-str.ts' } } }); await parser.write(); console.log(`Successfully generated types and utilities in: ${tempDir}`); console.log('Check files like types.ts, enums.ts, utils.ts in the output directory.'); // Example of importing a generated type (after generation) // const { A_Const } = await import(resolve(tempDir, 'types.ts')); // const myConst: A_Const = { node: { location: 0 }, ival: '123' }; // Example usage } catch (error) { console.error('Error generating types:', error); } } generatePgProtoTypes();