refactor: format, remove unnecessary exports, ignore unreachable code in coverage

Author: shunkica

libxml2

@@ -69,8 +69,7 @@ const c14nIsVisibleCallback = addFunction(
             }
             return res;
         }
-
-        // No callback or nodeSet - include all nodes
+        /* c8 ignore next 2, callback is not registered if neither is present */
         return 1;
     },
     'iiii',
@@ -221,6 +220,7 @@ function canonicalizeInternal(
             outputBufferPtr,
         );
 
+        /* c8 ignore next 3, defensive code */
         if (result < 0) {
             throw new XmlError('Failed to canonicalize XML document');
         }

src/c14n.mts

@@ -19,10 +19,11 @@ import { ContextStorage } from './utils.mjs';
 const libxml2 = await moduleLoader();
 libxml2._xmlInitParser();
 
-// Export specific functions needed by other modules
-export const {
- getValue, UTF8ToString, lengthBytesUTF8, stringToUTF8, addFunction,
-} = libxml2;
+/**
+ * Export runtime functions needed by other modules.
+ * @internal
+ */
+export const { addFunction } = libxml2;
 
 /**
  * The base class for exceptions in this library.

src/libxml2.mts

@@ -42,9 +42,7 @@ import {
 import type { XmlDocPtr, XmlNodePtr, XmlNsPtr } from './libxml2raw.mjs';
 import { XmlStringOutputBufferHandler } from './utils.mjs';
 import { NamespaceMap, XmlXPath } from './xpath.mjs';
-import {
-    canonicalizeSubtree, SubtreeC14NOptions,
-} from './c14n.mjs';
+import { canonicalizeSubtree, SubtreeC14NOptions } from './c14n.mjs';
 
 function compiledXPathEval(nodePtr: XmlNodePtr, xpath: XmlXPath) {
     const context = xmlXPathNewContext(XmlNodeStruct.doc(nodePtr));

src/nodes.mts

@@ -1,6 +1,4 @@
-import {
-    XmlInputProvider, XmlOutputBufferHandler,
-} from './libxml2.mjs';
+import { XmlInputProvider, XmlOutputBufferHandler } from './libxml2.mjs';
 import { Pointer } from './libxml2raw.mjs';
 
 /**