Finished cleanup

README.md

@@ -7,3 +7,52 @@ This tool is created to transform JavaScript based on definitions written in a c
 This is a DSL created to define proposal transformations using templates. A transformation is defined by two templates, a template of what code snippets to search for **applicable to** and a template of how to transform those snippets **transform to**.
 
 Examples of definitions for proposals can be found in [dsl_files](./dsl_files/)
+
+## Running this project
+
+This project exposes an api in the file [transform/transfrom.ts](./src/transform/transform.ts), which is meant to be used as this library's entry point.
+
+To run this code as a standalone project, a file [index.ts](./index.ts) exists to facilitate running this project.
+
+This project is created using TypeScript, and it is recommended to use [Bun](https://bun.sh/) to compile and run it.
+
+### Building Langium required files
+
+Firstly, building langium is required, this is done by the following:
+
+```sh
+# cd into JSTQL
+cd JSTQL
+
+# Install dependencies
+npm i
+
+# Build langium generated files
+npm run langium:generate
+
+# Build final JS source
+npm run build
+```
+
+### Running a transformation
+
+Now we are ready to run this project with the pipeline on a test JS file:
+
+```sh
+# cd into top level
+cd ..
+
+# Install dependencies
+bun i
+
+# Run an example transformation
+bun run index.ts dsl_files/pipeline.jstql test_files/test.js
+```
+
+### Arguments of index.ts
+
+Arguments
+
+-   First positional is path to JSTQL
+-   Second positional is path to JS file to transform
+-   -o is optional output path, if not given path is **./out.js**

index.ts

@@ -1,32 +1,40 @@
 //import * as babelparser from "../babel/packages/babel-parser";
 import * as babelparser from "@babel/parser";
 //import core from "../babel/packages/babel-core";
-import { parse_with_plugins } from "./parser/parse";
+import { parse_with_plugins } from "./src/parser/parse";
 import {
     SelfHostedRecipe,
     TransformRecipe,
     transform,
-} from "./transform/transform";
+} from "./src/transform/transform";
 import { readdir } from "node:fs/promises";
-import { parseJSTQL } from "./langium/langiumRunner";
+import { parseJSTQL } from "./src/langium/langiumRunner";
 
 import { parseArgs } from "util";
 
-const options = {
+const options = {};
-    o: {
-        type: "string",
-    },
-};
 
 const { values: argVals, tokens: positional } = parseArgs({
-    options,
+    options: {
+        o: {
+            type: "string",
+        },
+    },
     tokens: true,
     allowPositionals: true,
 });
 const main = async () => {
     //transform(selfHostedTransformExampleMultiStmt, codeFromFile);
     console.log(positional);
-    if (!positional[0] || !positional[0].value.endsWith(".jstql")) {
+    console.log(argVals);
+    if (!positional) {
+        throw new Error("Something is wrong with args");
+    }
+    if (
+        !positional[0] &&
+        positional[0].kind === "positional" &&
+        !positional[0].value.endsWith(".jstql")
+    ) {
         throw new Error("First positional argument is current JSTQL file");
     }
     if (!positional[1] || !positional[1].value.endsWith(".js")) {
@@ -44,12 +52,13 @@ const main = async () => {
 
     for (let proposal of parsedJSTQL) {
         let [resultString, matches] = transform(proposal.cases, codeString);
-
+        console.log(resultString);
-        let path = "./";
+        let path = "./out.js";
         if (argVals["o"]) {
             path = argVals["o"];
         }
-        Bun.write(path, resultString);
+        console.log(path);
+        await Bun.write(path, resultString);
     }
 };
 

tsconfig.json

@@ -10,6 +10,6 @@
         "moduleResolution": "node",
         "types": ["bun-types"]
     },
-    "include": ["src"],
+    "include": ["src", "index.ts"],
     "exclude": ["babel"]
 }