code: function(feature, style) {
          // don't try to draw the feature with the renderer if the layer is not 
          // drawn itself
          if (!this.drawn) {
              return;
          }
          if (typeof style != "object") {
              if(!style && feature.state === OpenLayers.State.DELETE) {
                  style = "delete";
              }
              var renderIntent = style || feature.renderIntent;
              style = feature.style || this.style;
              if (!style) {
                  style = this.styleMap.createSymbolizer(feature, renderIntent);
              }
          }
          
          var drawn = this.renderer.drawFeature(feature, style);
          //TODO remove the check for null when we get rid of Renderer.SVG
          if (drawn === false || drawn === null) {
              this.unrenderedFeatures[feature.id] = feature;
          } else {
              delete this.unrenderedFeatures[feature.id];
          }
      }
docs: APIMethod: drawFeature
  Draw (or redraw) a feature on the layer.  If the optional style argument
  is included, this style will be used.  If no style is included, the
  feature's style will be used.  If the feature doesn't have a style,
  the layer's style will be used.
  
  This function is not designed to be used when adding features to
  the layer (use addFeatures instead). It is meant to be used when
  the style of a feature has changed, or in some other way needs to
  visually updated *after* it has already been added to a layer. You
  must add the feature to the layer for most layer-related events to
  happen.
  
  Parameters:
  feature - {<OpenLayers.Feature.Vector>}
  style - {String | Object} Named render intent or full symbolizer object.