Fix binding exception propagation

[dokar3]

Fix #222

Summary by CodeRabbit

• Bug Fixes
  • Improved exception handling for failures during synchronous and asynchronous JavaScript calls.
  • Preserved Kotlin exception types and messages when errors cross the JavaScript bridge.
  • Correctly restores IllegalArgumentException errors.
  • Improved JavaScript error names, messages, and stack information.
  • JavaScript can now catch converted binding exceptions with the expected details.
  • Resolved errors now use clearer messages when the original exception details are unavailable.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8d3bd68a-c25c-4524-820d-0056f2869ef5

📥 Commits

Reviewing files that changed from the base of the PR and between 9fed79c and 76d4115.

📒 Files selected for processing (1)

• quickjs/native/jni/mapping/js_value_to_jobject.c

🚧 Files skipped from review as they are similar to previous changes (1)

• quickjs/native/jni/mapping/js_value_to_jobject.c

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📝 Walkthrough

Walkthrough

JNI binding paths now convert Java throwables into QuickJS exceptions. Kotlin and JavaScript error mapping preserves recognized exception messages and corrects IllegalArgumentException restoration. Tests cover synchronous binding failures after await.

Changes

Exception propagation

Layer / File(s)	Summary
Error conversion and message mapping quickjs/native/jni/mapping/jobject_to_js_value.h, quickjs/native/jni/mapping/js_value_to_jobject.c, quickjs/src/nativeMain/kotlin/com/dokar/quickjs/bridge/jsValueToKtValue.kt	The bridge exposes Java throwable conversion. Resolved Java exceptions use the original JavaScript message with explicit message cleanup. Recognized Kotlin exception classes receive the original message, and IllegalArgumentException maps correctly.
JNI binding exception paths and regression tests quickjs/native/jni/binding_bridge.c, quickjs/src/commonTest/kotlin/com/dokar/quickjs/test/EvalErrorsTest.kt	Getter, setter, synchronous function, and asynchronous function failures return converted QuickJS exceptions. Tests verify exception type, message, and JavaScript catch behavior after await.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to 76d41

The change is merge-ready after normal checks and review; no actionable merge-blocking risk remains.

Possibly related PRs

• dokar3/quickjs-kt#204: Related async binding and evaluation exception propagation changes.
• dokar3/quickjs-kt#206: Related JavaScript and Java exception conversion changes.
• dokar3/quickjs-kt#211: Related error message and Kotlin exception mapping changes.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the primary change: fixing exception propagation from bindings.
Linked Issues check	✅ Passed	The changes address issue #222 by preserving Java exception messages across pending job execution and await resumption.
Out of Scope Changes check	✅ Passed	All modified native, Kotlin, and test code supports exception propagation and message preservation described in issue #222.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/binding-exception-propagation

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Actionable comments posted: 1

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Inline comments:
In `@quickjs/native/jni/mapping/js_value_to_jobject.c`:
- Around line 105-107: Update the recognized-exception path around NewStringUTF
so message remains valid until that call completes; defer releasing
original_message and js_message until afterward. Ensure both buffers are
released before the fallback return on every non-recognized path.

🪄 Autofix

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 0b83d145-6fad-4502-99bd-3d5a47f05ce5

📥 Commits

Reviewing files that changed from the base of the PR and between c968802 and 9fed79c.

📒 Files selected for processing (5)

• quickjs/native/jni/binding_bridge.c
• quickjs/native/jni/mapping/jobject_to_js_value.h
• quickjs/native/jni/mapping/js_value_to_jobject.c
• quickjs/src/commonTest/kotlin/com/dokar/quickjs/test/EvalErrorsTest.kt
• quickjs/src/nativeMain/kotlin/com/dokar/quickjs/bridge/jsValueToKtValue.kt