Add lfwasm as dep and turn strict type checks on

.gitignore

@@ -5,3 +5,4 @@ node_modules/*
 out/*
 .gradle/*
 __pycache__/*
+lfw-pkg/

CONTRIBUTING.md

@@ -13,15 +13,19 @@ To check out the repository, build from source, and install the VS Code plugin,
 ```
 git clone git@github.com:lf-lang/vscode-lingua-franca.git \
 && cd vscode-lingua-franca \
+&& cp -r /path/to/the/wasm/dependency/packaged/for/use/with/typescript ./lfw-pkg \
 && npm install
 ```
 If you do not have a public key set up for authentication with GitHub, you can also use HTTPS:
 ```
 git clone https://github.com/lf-lang/vscode-lingua-franca.git \
 && cd vscode-lingua-franca \
+&& cp -r /path/to/the/wasm/dependency/packaged/for/use/with/typescript ./lfw-pkg \
 && npm install
 ```
 
+Note that this assumes that you have the WASM dependency somewhere on your system. Eventually, the WASM will probably be published; however, that hasn't been done yet, and it isn't currently possible to build it from source from this open-source repo because it is closed-source.
+
 ### Trouble Shooting
 
 #### VS Code is not detected on Mac OS X

package.json

@@ -181,6 +181,7 @@
         "which": "^2.0.2"
     },
     "dependencies": {
+        "lfwasm": "file:lfw-pkg",
         "vscode-languageclient": "^6.1.3"
     },
     "scripts": {

src/build_commands.ts

@@ -1,6 +1,7 @@
 import * as vscode from 'vscode';
 import { LanguageClient } from 'vscode-languageclient';
 import { getTerminal, MessageDisplayHelper } from './utils';
+import * as lfw from 'lfwasm';
 
 /**
  * Return the URI of the given document, if the document is a Lingua Franca file; else, return
@@ -28,7 +29,11 @@ const getAst =
   (withLogs: MessageShowerTransformer, client: LanguageClient) =>
   async () => {
     // vscode.window.showInformationMessage("Getting AST...");
-    const uri = getLfUri(vscode.window.activeTextEditor.document);
+    const current_file = vscode.window.activeTextEditor?.document;
+    if (!current_file) {
+        return "There is no currently active file, so it is not clear which AST to return.";
+    }
+    const uri = getLfUri(current_file);
     if (!uri) {
       return "The currently active file is not a Lingua Franca source file.";
     }
@@ -96,13 +101,22 @@ const build = (withLogs: MessageShowerTransformer, client: LanguageClient) =>
     if (!uri) return;
     vscode.workspace.saveAll().then((successful: boolean) => {
         if (!successful) return;
-        client.sendRequest('generator/build', uri).then((message: string) => {
+        client.sendRequest('generator/build', [uri, getJson(uri)]).then((messageAny: any) => {
+            const message: string = messageAny;
             if (message) withLogs(vscode.window.showInformationMessage)(message);
             else withLogs(vscode.window.showErrorMessage)('Build failed.');
         });
     });
 };
 
+function getJson(uri: string): string {
+    let json: string | undefined = lfw.lfc_json(vscode.Uri.parse(uri).fsPath, (p: string) => vscode.workspace.fs.readFile(vscode.Uri.file(p)));
+    if (!json) {
+        json = "";
+    }
+    return json;
+}
+
 /**
  * Return the action that should be taken in case of a request to build and run.
  * @param withLogs A messageShowerTransformer that lets the user request to view logs.
@@ -115,7 +129,8 @@ const buildAndRun = (withLogs: MessageShowerTransformer, client: LanguageClient)
     if (!uri) return;
     vscode.workspace.saveAll().then((successful: boolean) => {
         if (!successful) return;
-        client.sendRequest('generator/buildAndRun', uri).then((command: string[]) => {
+        client.sendRequest('generator/buildAndRun', [uri, getJson(uri)]).then((commandAny: any) => {
+            const command: string[] = commandAny;
             if (!command || !command.length) {
                 withLogs(vscode.window.showErrorMessage)('Build failed.');
                 return;

tsconfig.json

@@ -2,14 +2,23 @@
     "compilerOptions": {
         "esModuleInterop": true,
         "inlineSources": false,
-        "lib": ["esnext"],
+        "lib": [
+            "esnext"
+        ],
         "module": "commonjs",
         "moduleResolution": "node",
         "outDir": "./out",
         "sourceMap": false,
         "target": "esnext",
         "rootDir": "./src",
+        "strict": true
     },
-    "exclude": ["node_modules", ".vscode-test", ".gradle"],
-    "include": ["./src"]
+    "exclude": [
+        "node_modules",
+        ".vscode-test",
+        ".gradle"
+    ],
+    "include": [
+        "./src"
+    ]
 }