From 18048b3812b53077b8cf6e4ea4cad49824408e9b Mon Sep 17 00:00:00 2001
From: Supritha Rajashekar <supritharajashekar10@gmail.com>
Date: Sat, 28 Mar 2026 04:59:26 +0000
Subject: [PATCH] fix: throw Error instead of raw array for TypeScript
 compilation failures

Signed-off-by: Supritha Rajashekar <supritharajashekar10@gmail.com>
---
 src/TemplateMarkToJavaScriptCompiler.ts       |  6 +-
 .../TemplateMarkInterpreter.test.ts.snap      | 82 +------------------
 2 files changed, 7 insertions(+), 81 deletions(-)

diff --git a/src/TemplateMarkToJavaScriptCompiler.ts b/src/TemplateMarkToJavaScriptCompiler.ts
index abf1776..455844f 100644
--- a/src/TemplateMarkToJavaScriptCompiler.ts
+++ b/src/TemplateMarkToJavaScriptCompiler.ts
@@ -105,7 +105,11 @@ export class TemplateMarkToJavaScriptCompiler {
             return compiled;
         }
         else {
-            throw errors;
+            const messages = errors.map(e => {
+                const errorList = e.errors.map(d => `${d.renderedMessage} (line ${d.line}, col ${d.character})`);
+                return `In '${e.nodeId}': ${errorList.join(', ')}`;
+            });
+            throw new Error(messages.join('\n'));
         }
     }
 }
diff --git a/test/__snapshots__/TemplateMarkInterpreter.test.ts.snap b/test/__snapshots__/TemplateMarkInterpreter.test.ts.snap
index a8ae360..b7b08f5 100644
--- a/test/__snapshots__/TemplateMarkInterpreter.test.ts.snap
+++ b/test/__snapshots__/TemplateMarkInterpreter.test.ts.snap
@@ -1,86 +1,8 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`templatemark interpreter should fail to generate formula-invalid 1`] = `
-[
-  {
-    "code": " THIS IS GARBAGE ",
-    "errors": [
-      {
-        "category": 1,
-        "character": 3,
-        "code": 2304,
-        "id": "err-2304-468-4",
-        "length": 4,
-        "line": 82,
-        "renderedMessage": "Cannot find name 'THIS'.",
-        "start": 1785,
-      },
-      {
-        "category": 1,
-        "character": 8,
-        "code": 2304,
-        "id": "err-2304-473-2",
-        "length": 2,
-        "line": 82,
-        "renderedMessage": "Cannot find name 'IS'.",
-        "start": 1790,
-      },
-      {
-        "category": 1,
-        "character": 11,
-        "code": 2304,
-        "id": "err-2304-476-7",
-        "length": 7,
-        "line": 82,
-        "renderedMessage": "Cannot find name 'GARBAGE'.",
-        "start": 1793,
-      },
-      {
-        "category": 1,
-        "character": 3,
-        "code": 1435,
-        "id": "err-1435-468-4",
-        "length": 4,
-        "line": 82,
-        "renderedMessage": "Unknown keyword or identifier. Did you mean 'this'?",
-        "start": 1785,
-      },
-      {
-        "category": 1,
-        "character": 8,
-        "code": 1434,
-        "id": "err-1434-473-2",
-        "length": 2,
-        "line": 82,
-        "renderedMessage": "Unexpected keyword or identifier.",
-        "start": 1790,
-      },
-    ],
-    "nodeId": "formula_adef0feb9fc1b6e7513409c93d86aa4d9999d35608e1aaeecc07dca99bc591c8",
-  },
-]
-`;
+exports[`templatemark interpreter should fail to generate formula-invalid 1`] = `[Error: In 'formula_adef0feb9fc1b6e7513409c93d86aa4d9999d35608e1aaeecc07dca99bc591c8': Cannot find name 'THIS'. (line 82, col 3), Cannot find name 'IS'. (line 82, col 8), Cannot find name 'GARBAGE'. (line 82, col 11), Unknown keyword or identifier. Did you mean 'this'? (line 82, col 3), Unexpected keyword or identifier. (line 82, col 8)]`;
 
-exports[`templatemark interpreter should fail to generate formula-no-method 1`] = `
-[
-  {
-    "code": " return message.missing() ",
-    "errors": [
-      {
-        "category": 1,
-        "character": 18,
-        "code": 2339,
-        "id": "err-2339-483-7",
-        "length": 7,
-        "line": 82,
-        "renderedMessage": "Property 'missing' does not exist on type 'string'.",
-        "start": 1800,
-      },
-    ],
-    "nodeId": "formula_4ef52e3adc6e5334e0925838eed0e51a372091d9b3a4499537ccf82fce5b1b25",
-  },
-]
-`;
+exports[`templatemark interpreter should fail to generate formula-no-method 1`] = `[Error: In 'formula_4ef52e3adc6e5334e0925838eed0e51a372091d9b3a4499537ccf82fce5b1b25': Property 'missing' does not exist on type 'string'. (line 82, col 18)]`;
 
 exports[`templatemark interpreter should fail to generate formula-optional-noguard 1`] = `[Error: Optional properties used without guards: message]`;