added ast parsing

packages/boringlang/src/commands/run.ts

@@ -0,0 +1,29 @@
+import { defineCommand } from "@bunli/core";
+import { boringGrammar } from "../parse/grammar";
+import { semantics } from "../parse/semantics";
+
+export const run = defineCommand({
+  name: "run",
+  description: "Run a boringlang file",
+
+  handler: async ({ positional }) => {
+    const [path] = positional;
+
+    if (!path) {
+      throw new Error("Usage: run <path>");
+    }
+
+    const file = Bun.file(path);
+    const text = await file.text();
+
+    const match = boringGrammar.match(text, "Module");
+    if (match.succeeded()) {
+      const adapter = semantics(match);
+      const ast = adapter.toAST();
+      console.log(JSON.stringify(ast, null, 2));
+    } else {
+      console.log(match.message);
+      // console.log(boringGrammar.trace(text, "Module").toString());
+    }
+  },
+});