LibJS: Add ThrowableStringBuilder::to_string to create a new String

This wraps around the base class method to throw an OOM completion.
Author: https://github.com/trflynn89 Commit: 79e81e8a15 Pull-request: https://github.com/SerenityOS/serenity/pull/17014 Reviewed-by: https://github.com/linusg ✅
2025-07-30 04:39:06 +00:00 · 2023-01-14 10:30:18 -05:00 · 2023-01-14 10:30:18 -05:00 · 79e81e8a15 · 2024-07-17 01:41:31 +09:00
commit 79e81e8a15
parent 3ad1f250e7
2 changed files with 10 additions and 0 deletions
--- a/Userland/Libraries/LibJS/Runtime/ThrowableStringBuilder.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ThrowableStringBuilder.cpp
@ -42,4 +42,13 @@ ThrowCompletionOr<void> ThrowableStringBuilder::append_code_point(u32 value)
    return {};
 }

+ThrowCompletionOr<String> ThrowableStringBuilder::to_string() const
+{
+    auto result = StringBuilder::to_string();
+    if (result.is_error())
+        return m_vm.throw_completion<InternalError>(ErrorType::NotEnoughMemoryToAllocate, length());
+
+    return result.release_value();
+}
+
 }