Adding Decorators for comments

src/process.ts

@@ -4,10 +4,12 @@ import Color from "chalk";
 import * as Path from "path";
 import tokenize, { TokenizerError } from "./tokenizer";
 import parse, { Parsed, ParserError } from "./parser";
-import get_ir, { IR } from "./ir";
+import get_ir, { IR, IRError } from "./ir";
 import compile, { CompileTarget } from "./compile";
 import { ESMTypescriptTarget, NodeJSTypescriptTarget } from "./targets/typescript";
 
+class CatchedError extends Error {}
+
 const log = dbg("app");
 
 
@@ -75,7 +77,7 @@ type ProcessContext = {
    processedFiles: Set<string>;
 };
 
-function processFile(ctx: ProcessContext, file: string): Parsed | null {
+function processFile(ctx: ProcessContext, file: string, root = false): Parsed | null {
    file = Path.resolve(file);
    if (ctx.processedFiles.has(file)) {
       log("Skipping file %s since it has already be processed", file);
@@ -109,13 +111,17 @@ function processFile(ctx: ProcessContext, file: string): Parsed | null {
    } catch (err) {
       if (err instanceof TokenizerError) {
          printError(err, file, err.index);
+         if(!root)
+            throw new CatchedError();
       } else if (err instanceof ParserError) {
          printError(err, file, err.token.startIdx);
+         if(!root)
+            throw new CatchedError();
+      } else if(root && err instanceof CatchedError) {
+         return null;
       } else {
-         throw err;
+         throw err;     
       }
-
-      return null;
    }
 }
 
@@ -129,19 +135,27 @@ export default function startCompile(options: CompileOptions) {
    if(options.input.endsWith(".json")) {
       ir = JSON.parse(FS.readFileSync(options.input, "utf-8"));
    } else {
-      const parsed = processFile(ctx, options.input);
-      // console.log(([...parsed].pop() as any).functions)
+      const parsed = processFile(ctx, options.input, true);
+
       if(!parsed)
-         throw new Error("Error compiling: Parse output is undefined!");
-      
+         process.exit(1); // Errors should have already been emitted
+      try {
       ir = get_ir(parsed);
+      } catch(err) {
+         if(err instanceof IRError) {
+            printError(err, err.statement.location.file, err.statement.location.idx); 
+            process.exit(1);
+         } else {
+            throw err;
+         }
+      }
    }
 
    if(!ir)
       throw new Error("Error compiling: Cannot get IR");
 
    if(options.emitDefinitions) {
-      FS.writeFileSync(options.emitDefinitions, JSON.stringify(ir));
+      FS.writeFileSync(options.emitDefinitions, JSON.stringify(ir, undefined, 3));
    }
 
    if(options.targets.length <= 0) {