feat: Source Maps for Code Generation (#714)

Closes #30

### Summary of Changes

- changed code generation to return traced nodes instead of text
- add option to generate source maps by providing an optional path

---------

Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
Co-authored-by: Lars Reimann <mail@larsreimann.com>

packages/safe-ds-cli/src/cli/generate.ts

@@ -6,11 +6,14 @@ import fs from 'node:fs';
 import path from 'node:path';
 import { extractDocument } from './cli-util.js';
 
-export const generate = async (fileName: string, opts: GenerateOptions): Promise<void> => {
+export const generate = async (fileName: string, opts: CliGenerateOptions): Promise<void> => {
     const services = (await createSafeDsServicesWithBuiltins(NodeFileSystem)).SafeDs;
     const document = await extractDocument(fileName, services);
     const destination = opts.destination ?? path.join(path.dirname(fileName), 'generated');
-    const generatedFiles = services.generation.PythonGenerator.generate(document, URI.file(path.resolve(destination)));
+    const generatedFiles = services.generation.PythonGenerator.generate(document, {
+        destination: URI.file(path.resolve(destination)),
+        createSourceMaps: opts.sourcemaps,
+    });
 
     for (const file of generatedFiles) {
         const fsPath = URI.parse(file.uri).fsPath;
@@ -25,6 +28,8 @@ export const generate = async (fileName: string, opts: GenerateOptions): Promise
     console.log(chalk.green(`Python code generated successfully.`));
 };
 
-export interface GenerateOptions {
+export interface CliGenerateOptions {
     destination?: string;
+    sourcemaps: boolean;
+    quiet: boolean;
 }

packages/safe-ds-cli/src/cli/main.ts

@@ -22,6 +22,7 @@ program
     .option('-d, --destination <dir>', 'destination directory of generation')
     .option('-r, --root <dir>', 'source root folder')
     .option('-q, --quiet', 'whether the program should print something', false)
+    .option('-s, --sourcemaps', 'whether source maps should be generated', false)
     .description('generate Python code')
     .action(generate);
 

packages/safe-ds-lang/package.json

@@ -47,6 +47,7 @@
         "chevrotain": "^11.0.3",
         "glob": "^10.3.10",
         "langium": "^2.1.0",
+        "source-map": "^0.7.4",
         "vscode-languageserver": "^9.0.1",
         "vscode-languageserver-textdocument": "^1.0.11"
     },