@tripsnek/tmf
Version:
TypeScript Modeling Framework - A TypeScript port of the Eclipse Modeling Framework (EMF)
152 lines (142 loc) • 20.6 kB
JavaScript
import { EClassImpl } from '../metamodel/impl/eclass-impl.js';
import { TGenUtils as DU } from './tgen-utils.js';
import { Environment, safeDynamicImport } from '../utils/environment.js';
/**
* Source code generation for .ts file that exports external facing
* APIs for a TMF EPackage.
*
*/
export class TGeneratorBarrelIndexTs {
outDir = '';
async generate(ePackage, outDir) {
if (outDir) {
this.outDir = outDir;
await this.ensureCustomDirectory();
}
const packageContents = this.generatePackageContents('', ePackage);
const customExports = await this.generateCustomExports();
return packageContents + customExports;
}
generatePackageContents(pkgFolderPath, ePackage) {
const path = pkgFolderPath + ePackage.getName();
let toReturn = ``;
for (const sub of ePackage.getESubPackages()) {
toReturn += this.generatePackageContents(path + '/', sub);
}
toReturn +=
`export * from './${path}/${DU.genUtilsFileName(ePackage)}.js';
export * from './${path}/${DU.genPackageFileName(ePackage)}.js';
export * from './${path}/${DU.genFactoryFileName(ePackage)}.js';
${this.generateEClassifierExports(ePackage, path)}`;
return toReturn;
}
generateEClassifierExports(ePackage, pkgFolderPath) {
let exports = ``;
for (const eclassifier of ePackage.getEClassifiers()) {
exports += `export * from './${pkgFolderPath}/api/${DU.genClassApiName(eclassifier)}.js';\n`;
if (eclassifier instanceof EClassImpl) {
exports += `export * from './${pkgFolderPath}/impl/${DU.genClassImplName(eclassifier)}.js';\n`;
exports += `export * from './${pkgFolderPath}/gen/${DU.genClassGenName(eclassifier)}.js';\n`;
}
}
return exports;
}
async ensureCustomDirectory() {
if (!this.outDir)
return;
Environment.requireNodeEnvironment('Custom directory creation');
try {
const fs = await safeDynamicImport('fs');
const path = await safeDynamicImport('path');
const customDir = path.join(this.outDir, 'custom');
if (!fs.existsSync(customDir)) {
fs.mkdirSync(customDir, { recursive: true });
const readmeContent = `# Custom Directory
This directory is automatically created by the TMF code generator to store your custom TypeScript files.
## Purpose
Files placed in this directory (and its subdirectories) are automatically exported in the barrel file (index.ts)
alongside the generated model code. This allows you to:
- Add custom utility functions related to your model
- Create custom business logic that works with your model
- Add helper types and interfaces
## Usage
- Place any \`.ts\` files in this directory or its subdirectories
- **GENERATE YOUR MODEL AGAIN**: All \`.ts\` files will be automatically included in the barrel exports
- Files are exported using relative paths from the project root
- The directory structure is preserved in the export paths
## Examples
\`\`\`typescript
// custom/utilities.ts
export function customModelHelper() {
// Your custom code here
}
// custom/types/custom-types.ts
export interface CustomModelExtension {
// Your custom types here
}
\`\`\`
These will automatically be exported as:
\`\`\`typescript
export * from './custom/utilities.js';
export * from './custom/types/custom-types.js';
\`\`\`
`;
const readmePath = path.join(customDir, 'README.md');
fs.writeFileSync(readmePath, readmeContent, 'utf8');
}
}
catch (error) {
throw new Error(`Custom directory creation failed: ${error.message}. This operation requires Node.js environment.`);
}
}
async generateCustomExports() {
if (!this.outDir)
return '';
Environment.requireNodeEnvironment('Custom exports generation');
try {
const fs = await safeDynamicImport('fs');
const path = await safeDynamicImport('path');
const customDir = path.join(this.outDir, 'custom');
if (!fs.existsSync(customDir))
return '';
const customFiles = await this.findTypeScriptFiles(customDir);
if (customFiles.length === 0)
return '';
let exports = '\n// Custom exports from /custom directory\n';
for (const file of customFiles) {
const relativePath = path.relative(this.outDir, file);
const exportPath = relativePath.replace(/\.ts$/, '').replace(/\\/g, '/');
exports += `export * from './${exportPath}.js';\n`;
}
return exports;
}
catch (error) {
throw new Error(`Custom exports generation failed: ${error.message}. This operation requires Node.js environment.`);
}
}
async findTypeScriptFiles(dir) {
Environment.requireNodeEnvironment('TypeScript file discovery');
try {
const fs = await safeDynamicImport('fs');
const path = await safeDynamicImport('path');
const files = [];
if (!fs.existsSync(dir))
return files;
const items = fs.readdirSync(dir, { withFileTypes: true });
for (const item of items) {
const fullPath = path.join(dir, item.name);
if (item.isDirectory()) {
files.push(...await this.findTypeScriptFiles(fullPath));
}
else if (item.isFile() && item.name.endsWith('.ts') && item.name !== 'README.md') {
files.push(fullPath);
}
}
return files;
}
catch (error) {
throw new Error(`TypeScript file discovery failed: ${error.message}. This operation requires Node.js environment.`);
}
}
}
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{ EClass } from '../metamodel/api/eclass.js';\r\nimport { EClassImpl } from '../metamodel/impl/eclass-impl.js';\r\nimport { EPackage } from '../metamodel/api/epackage.js';\r\nimport { TGenUtils as DU } from './tgen-utils.js';\r\nimport { Environment, safeDynamicImport } from '../utils/environment.js';\r\n\r\n/**\r\n * Source code generation for .ts file that exports external facing\r\n * APIs for a TMF EPackage.\r\n *\r\n */\r\nexport class TGeneratorBarrelIndexTs {\r\n  private outDir: string = '';\r\n\r\n  public async generate(ePackage: EPackage, outDir?: string): Promise<string> {\r\n    if (outDir) {\r\n      this.outDir = outDir;\r\n      await this.ensureCustomDirectory();\r\n    }\r\n    const packageContents = this.generatePackageContents('', ePackage);\r\n    const customExports = await this.generateCustomExports();\r\n    return packageContents + customExports;\r\n  }\r\n\r\n  private generatePackageContents(\r\n    pkgFolderPath: string,\r\n    ePackage: EPackage\r\n  ): string {\r\n    const path = pkgFolderPath + ePackage.getName();\r\n    let toReturn = ``;\r\n    for (const sub of ePackage.getESubPackages()) {\r\n      toReturn += this.generatePackageContents(path + '/', sub);\r\n    }\r\n    toReturn += \r\n    `export * from './${path}/${DU.genUtilsFileName(ePackage)}.js';\r\nexport * from './${path}/${DU.genPackageFileName(ePackage)}.js';\r\nexport * from './${path}/${DU.genFactoryFileName(ePackage)}.js';\r\n${this.generateEClassifierExports(ePackage, path)}`;\r\n    return toReturn;\r\n  }\r\n\r\n  generateEClassifierExports(ePackage: EPackage, pkgFolderPath: string) {\r\n    let exports = ``;\r\n    for (const eclassifier of ePackage.getEClassifiers()) {\r\n      exports += `export * from './${pkgFolderPath}/api/${DU.genClassApiName(\r\n        eclassifier\r\n      )}.js';\\n`;\r\n      if (eclassifier instanceof EClassImpl) {\r\n        exports += `export * from './${pkgFolderPath}/impl/${DU.genClassImplName(\r\n          eclassifier\r\n        )}.js';\\n`;\r\n        exports += `export * from './${pkgFolderPath}/gen/${DU.genClassGenName(\r\n          eclassifier\r\n        )}.js';\\n`;\r\n      }\r\n    }\r\n    return exports;\r\n  }\r\n\r\n  private async ensureCustomDirectory(): Promise<void> {\r\n    if (!this.outDir) return;\r\n    \r\n    Environment.requireNodeEnvironment('Custom directory creation');\r\n    \r\n    try {\r\n      const fs = await safeDynamicImport('fs');\r\n      const path = await safeDynamicImport('path');\r\n      \r\n      const customDir = path.join(this.outDir, 'custom');\r\n      \r\n      if (!fs.existsSync(customDir)) {\r\n        fs.mkdirSync(customDir, { recursive: true });\r\n        \r\n        const readmeContent = `# Custom Directory\r\n\r\nThis directory is automatically created by the TMF code generator to store your custom TypeScript files.\r\n\r\n## Purpose\r\n\r\nFiles placed in this directory (and its subdirectories) are automatically exported in the barrel file (index.ts) \r\nalongside the generated model code. This allows you to:\r\n\r\n- Add custom utility functions related to your model\r\n- Create custom business logic that works with your model\r\n- Add helper types and interfaces\r\n\r\n## Usage\r\n\r\n- Place any \\`.ts\\` files in this directory or its subdirectories\r\n- **GENERATE YOUR MODEL AGAIN**: All \\`.ts\\` files will be automatically included in the barrel exports\r\n- Files are exported using relative paths from the project root\r\n- The directory structure is preserved in the export paths\r\n\r\n## Examples\r\n\r\n\\`\\`\\`typescript\r\n// custom/utilities.ts\r\nexport function customModelHelper() {\r\n  // Your custom code here\r\n}\r\n\r\n// custom/types/custom-types.ts  \r\nexport interface CustomModelExtension {\r\n  // Your custom types here\r\n}\r\n\\`\\`\\`\r\n\r\nThese will automatically be exported as:\r\n\\`\\`\\`typescript\r\nexport * from './custom/utilities.js';\r\nexport * from './custom/types/custom-types.js';\r\n\\`\\`\\`\r\n`;\r\n        \r\n        const readmePath = path.join(customDir, 'README.md');\r\n        fs.writeFileSync(readmePath, readmeContent, 'utf8');\r\n      }\r\n    } catch (error: any) {\r\n      throw new Error(`Custom directory creation failed: ${error.message}. This operation requires Node.js environment.`);\r\n    }\r\n  }\r\n\r\n  private async generateCustomExports(): Promise<string> {\r\n    if (!this.outDir) return '';\r\n    \r\n    Environment.requireNodeEnvironment('Custom exports generation');\r\n    \r\n    try {\r\n      const fs = await safeDynamicImport('fs');\r\n      const path = await safeDynamicImport('path');\r\n      \r\n      const customDir = path.join(this.outDir, 'custom');\r\n      \r\n      if (!fs.existsSync(customDir)) return '';\r\n      \r\n      const customFiles = await this.findTypeScriptFiles(customDir);\r\n      \r\n      if (customFiles.length === 0) return '';\r\n      \r\n      let exports = '\\n// Custom exports from /custom directory\\n';\r\n      \r\n      for (const file of customFiles) {\r\n        const relativePath = path.relative(this.outDir, file);\r\n        const exportPath = relativePath.replace(/\\.ts$/, '').replace(/\\\\/g, '/');\r\n        exports += `export * from './${exportPath}.js';\\n`;\r\n      }\r\n      \r\n      return exports;\r\n    } catch (error: any) {\r\n      throw new Error(`Custom exports generation failed: ${error.message}. This operation requires Node.js environment.`);\r\n    }\r\n  }\r\n\r\n  private async findTypeScriptFiles(dir: string): Promise<string[]> {\r\n    Environment.requireNodeEnvironment('TypeScript file discovery');\r\n    \r\n    try {\r\n      const fs = await safeDynamicImport('fs');\r\n      const path = await safeDynamicImport('path');\r\n      \r\n      const files: string[] = [];\r\n      \r\n      if (!fs.existsSync(dir)) return files;\r\n      \r\n      const items = fs.readdirSync(dir, { withFileTypes: true });\r\n      \r\n      for (const item of items) {\r\n        const fullPath = path.join(dir, item.name);\r\n        \r\n        if (item.isDirectory()) {\r\n          files.push(...await this.findTypeScriptFiles(fullPath));\r\n        } else if (item.isFile() && item.name.endsWith('.ts') && item.name !== 'README.md') {\r\n          files.push(fullPath);\r\n        }\r\n      }\r\n      \r\n      return files;\r\n    } catch (error: any) {\r\n      throw new Error(`TypeScript file discovery failed: ${error.message}. This operation requires Node.js environment.`);\r\n    }\r\n  }\r\n}"]}