chore: initialize Langium component

.eslintrc.js

@@ -10,4 +10,7 @@ module.exports = {
         },
     },
     extends: '@lars-reimann',
+    rules: {
+        'import/extensions': 'off',
+    },
 };

.github/workflows/main.yml

@@ -1,7 +1,7 @@
 name: Main
 on:
   push:
-    branches: [main]
+    branches: [ main ]
 
 jobs:
   # Build and test DSL component
@@ -12,7 +12,7 @@ jobs:
         working-directory: ./DSL
     strategy:
       matrix:
-        java-version: [17]
+        java-version: [ 17 ]
 
     steps:
       - name: Checkout repository
@@ -54,3 +54,39 @@ jobs:
       coverage: ${{ matrix.python-version == '3.10' }}
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+  # Build and test the DSL port to Langium
+  build-dsl-langium:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./DSL-langium
+
+    strategy:
+      matrix:
+        node-version: [ 18.x ]
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v3
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+          cache-dependency-path: DSL-langium/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Test with Vitest
+        run: npm run test-with-coverage
+
+      - name: Upload coverage to Codecov
+        if: ${{ github.actor != 'dependabot[bot]' }}
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          directory: DSL-langium/coverage
+          files: clover.xml

.github/workflows/pr.yml

@@ -70,3 +70,39 @@ jobs:
       coverage: ${{ matrix.python-version == '3.10' }}
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+  # Build and test the DSL port to Langium
+  build-dsl-langium:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./DSL-langium
+
+    strategy:
+      matrix:
+        node-version: [ 18.x ]
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v3
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+          cache-dependency-path: DSL-langium/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Test with Vitest
+        run: npm run test-with-coverage
+
+      - name: Upload coverage to Codecov
+        if: ${{ github.actor != 'dependabot[bot]' }}
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          directory: DSL-langium/coverage
+          files: clover.xml

.gitignore

@@ -11,8 +11,12 @@
 .vscode/
 
 # Compilation/build outputs
+/DSL/**/bin/
+/DSL-langium/**/generated/
 build/
+coverage/
 dist/
+dist-ssr/
 out/
 
 # Gradle

DSL-langium/.vscodeignore

@@ -0,0 +1,4 @@
+.vscode/**
+.vscode-test/**
+.gitignore
+langium-quickstart.md

DSL-langium/bin/cli

@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+
+require("../out/cli").default();

DSL-langium/langium-config.json

@@ -0,0 +1,14 @@
+{
+    "projectName": "SafeDs",
+    "languages": [
+        {
+            "id": "safe-ds",
+            "grammar": "src/language-server/grammar/safe-ds.langium",
+            "fileExtensions": [".sdspipe", ".sdsschema", ".sdsstub", ".sdstest"],
+            "textMate": {
+                "out": "syntaxes/safe-ds.tmLanguage.json"
+            }
+        }
+    ],
+    "out": "src/language-server/generated"
+}

DSL-langium/langium-quickstart.md

@@ -0,0 +1,40 @@
+# Welcome to your Langium VS Code Extension
+
+## What's in the folder
+
+This folder contains all necessary files for your language extension.
+ * `package.json` - the manifest file in which you declare your language support.
+ * `language-configuration.json` - the language configuration used in the VS Code editor, defining the tokens that are used for comments and brackets.
+ * `src/extension.ts` - the main code of the extension, which is responsible for launching a language server and client.
+ * `src/language-server/safe-ds.langium` -  the grammar definition of your language.
+ * `src/language-server/main.ts` - the entry point of the language server process.
+ * `src/language-server/safe-ds-module.ts` - the dependency injection module of your language implementation. Use this to register overridden and added services.
+ * `src/language-server/safe-ds-validator.ts` - an example validator. You should change it to reflect the semantics of your language.
+ * `src/cli/index.ts` - the entry point of the command line interface (CLI) of your language.
+ * `src/cli/generator.ts` - the code generator used by the CLI to write output files from DSL documents.
+ * `src/cli/cli-util.ts` - utility code for the CLI.
+
+## Get up and running straight away
+
+ * Run `npm run langium:generate` to generate TypeScript code from the grammar definition.
+ * Run `npm run build` to compile all TypeScript code.
+ * Press `F5` to open a new window with your extension loaded.
+ * Create a new file with a file name suffix matching your language.
+ * Verify that syntax highlighting, validation, completion etc. are working as expected.
+ * Run `./bin/cli` to see options for the CLI; `./bin/cli generate <file>` generates code for a given DSL file.
+
+## Make changes
+
+ * Run `npm run watch` to have the TypeScript compiler run automatically after every change of the source files.
+ * Run `npm run langium:watch` to have the Langium generator run automatically after every change of the grammar declaration.
+ * You can relaunch the extension from the debug toolbar after making changes to the files listed above.
+ * You can also reload (`Ctrl+R` or `Cmd+R` on Mac) the VS Code window with your extension to load your changes.
+
+## Install your extension
+
+* To start using your extension with VS Code, copy it into the `<user home>/.vscode/extensions` folder and restart Code.
+* To share your extension with the world, read the [VS Code documentation](https://code.visualstudio.com/api/working-with-extensions/publishing-extension) about publishing an extension.
+
+## To Go Further
+
+Documentation about the Langium framework is available at https://langium.org

DSL-langium/language-configuration.json

@@ -0,0 +1,25 @@
+{
+    "comments": {
+        "lineComment": "//",
+        "blockComment": ["/*", "*/"]
+    },
+    "brackets": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"]
+    ],
+    "autoClosingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ],
+    "surroundingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ]
+}