Reorganized param code slightly to once again define buildParams as a…

… named function expression, as moving it outside the param closure would necessitate moving and rewriting the add function as well.

src/ajax.js

@@ -595,45 +595,14 @@ jQuery.extend({
 		var s = [],
 
 			// Set jQuery.param.traditional to true for jQuery <= 1.3.2 behavior.
-			param_traditional = jQuery.param.traditional;
+			traditional = jQuery.param.traditional;
 
 		function add( key, value ){
 			// If value is a function, invoke it and return its value
 			value = jQuery.isFunction(value) ? value() : value;
 			s[ s.length ] = encodeURIComponent(key) + '=' + encodeURIComponent(value);
 		}
 
-		// Recursively encode parameters from object.
-		function buildParams( prefix, obj ) {
-
-			if ( jQuery.isArray(obj) ) {
-				// Serialize array item.
-				jQuery.each( obj, function(i,v){
-					if ( param_traditional ) {
-						add( prefix, v );
-					} else {
-						// If array item is non-scalar (array or object), encode its numeric
-						// index to resolve deserialization ambiguity issues. Note that rack
-						// (as of 1.0.0) can't currently deserialize nested arrays properly,
-						// and attempting to do so may cause a server error. Possible fixes
-						// are to modify rack's deserialization algorithm or to provide an
-						// option or flag to force array serialization to be shallow.
-						buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v );
-					}
-				});
-
-			} else if ( !param_traditional && typeof obj === "object" ) {
-				// Serialize object item.
-				jQuery.each( obj, function(k,v){
-					buildParams( prefix + "[" + k + "]", v );
-				});
-
-			} else {
-				// Serialize scalar item.
-				add( prefix, obj );
-			}
-		}
-
 		// If an array was passed in, assume that it is an array of form elements.
 		if ( jQuery.isArray(a) || a.jquery ) {
 			// Serialize the form elements
@@ -642,9 +611,39 @@ jQuery.extend({
 			});
 
 		} else {
-			// If jQuery.param.traditional is set, encode the "old" way (the way
-			// 1.3.2 or older did it), otherwise encode params recursively.
-			jQuery.each( a, buildParams );
+			// If jQuery.param.traditional is true, encode the "old" way (the
+			// way 1.3.2 or older did it), otherwise encode params recursively.
+			jQuery.each( a, function buildParams( prefix, obj ) {
+
+				if ( jQuery.isArray(obj) ) {
+					// Serialize array item.
+					jQuery.each( obj, function(i,v){
+						if ( traditional ) {
+							// Treat each array item as a scalar.
+							add( prefix, v );
+						} else {
+							// If array item is non-scalar (array or object), encode its
+							// numeric index to resolve deserialization ambiguity issues.
+							// Note that rack (as of 1.0.0) can't currently deserialize
+							// nested arrays properly, and attempting to do so may cause
+							// a server error. Possible fixes are to modify rack's
+							// deserialization algorithm or to provide an option or flag
+							// to force array serialization to be shallow.
+							buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v );
+						}
+					});
+
+				} else if ( !traditional && typeof obj === "object" ) {
+					// Serialize object item.
+					jQuery.each( obj, function(k,v){
+						buildParams( prefix + "[" + k + "]", v );
+					});
+
+				} else {
+					// Serialize scalar item.
+					add( prefix, obj );
+				}
+			});
 		}
 
 		// Return the resulting serialization