prefactor: clean up Text.new implementations

(cherry picked from commit 6325ed6)

ext/java/nokogiri/XmlText.java

@@ -51,14 +51,14 @@ public class XmlText extends XmlNode
     }
 
     content = args[0];
-    IRubyObject xNode = args[1];
+    IRubyObject rbDocument = args[1];
 
-    if (!(xNode instanceof XmlDocument)) {
+    if (!(rbDocument instanceof XmlDocument)) {
       // TODO: deprecate allowing Node
       context.runtime.getWarnings().warn("Passing a Node as the second parameter to Text.new is deprecated. Please pass a Document instead. This will become an error in a future release of Nokogiri.");
     }
 
-    Document document = asXmlNode(context, xNode).getOwnerDocument();
+    Document document = asXmlNode(context, rbDocument).getOwnerDocument();
     // text node content should not be encoded when it is created by Text node.
     // while content should be encoded when it is created by Element node.
     Node node = document.createTextNode(rubyStringToString(content));

ext/nokogiri/xml_text.c

@@ -9,33 +9,33 @@ VALUE cNokogiriXmlText ;
  * Create a new Text element on the +document+ with +content+
  */
 static VALUE
-new (int argc, VALUE *argv, VALUE klass)
+rb_xml_text_s_new(int argc, VALUE *argv, VALUE klass)
 {
-  xmlDocPtr doc;
-  xmlNodePtr node;
-  VALUE string;
-  VALUE document;
-  VALUE rest;
+  xmlDocPtr c_document;
+  xmlNodePtr c_node;
+  VALUE rb_string;
+  VALUE rb_document;
+  VALUE rb_rest;
   VALUE rb_node;
 
-  rb_scan_args(argc, argv, "2*", &string, &document, &rest);
+  rb_scan_args(argc, argv, "2*", &rb_string, &rb_document, &rb_rest);
 
-  if (rb_obj_is_kind_of(document, cNokogiriXmlDocument)) {
-    doc = noko_xml_document_unwrap(document);
-  } else {
+  if (!rb_obj_is_kind_of(rb_document, cNokogiriXmlDocument)) {
     xmlNodePtr deprecated_node_type_arg;
     // TODO: deprecate allowing Node
     NOKO_WARN_DEPRECATION("Passing a Node as the second parameter to Text.new is deprecated. Please pass a Document instead. This will become an error in a future release of Nokogiri.");
-    Noko_Node_Get_Struct(document, xmlNode, deprecated_node_type_arg);
-    doc = deprecated_node_type_arg->doc;
+    Noko_Node_Get_Struct(rb_document, xmlNode, deprecated_node_type_arg);
+    c_document = deprecated_node_type_arg->doc;
+  } else {
+    c_document = noko_xml_document_unwrap(rb_document);
   }
 
-  node = xmlNewText((xmlChar *)StringValueCStr(string));
-  node->doc = doc;
+  c_node = xmlNewText((xmlChar *)StringValueCStr(rb_string));
+  c_node->doc = c_document;
 
-  noko_xml_document_pin_node(node);
+  noko_xml_document_pin_node(c_node);
 
-  rb_node = noko_xml_node_wrap(klass, node) ;
+  rb_node = noko_xml_node_wrap(klass, c_node) ;
   rb_obj_call_init(rb_node, argc, argv);
 
   if (rb_block_given_p()) { rb_yield(rb_node); }
@@ -52,5 +52,5 @@ noko_init_xml_text(void)
    */
   cNokogiriXmlText = rb_define_class_under(mNokogiriXml, "Text", cNokogiriXmlCharacterData);
 
-  rb_define_singleton_method(cNokogiriXmlText, "new", new, -1);
+  rb_define_singleton_method(cNokogiriXmlText, "new", rb_xml_text_s_new, -1);
 }