Function semanticMerge

bin/features_adapter.js:352–369

* Recover from a patch failure by asking the model to merge the intended * change into the current file content. * MarrowScript Rank 7: called when old_str is not found in patch case. * TTL 1m (content-specific — caching rarely helps). * * @param {string} filePath - File being patched *

(filePath, intendedChange, currentContent)

 * @returns {Promise<string|null>} New complete file content, or null on failure
 */
async function semanticMerge(filePath, intendedChange, currentContent) {
  const prompts = _getPrompts();
  if (!prompts) return null;
  try {
    const traceId = require('crypto').randomUUID();
    const result = await prompts.callPrompt('semantic_merge', {
      file: filePath,
      intended_change: String(intendedChange),
      current_content: String(currentContent),
    }, { trace_id: traceId });
    const text = String(result).trim();
    // Strip any accidental code fences the model may have added
    const stripped = text.replace(/^```[^\n]*\n/, '').replace(/\n```$/, '');
    return stripped.length > 0 ? stripped : null;
  } catch {
    return null;
  }
}

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