// Rule: InefficientWeight
//
// Description: Checks whether a layout_weight is declared inefficiently.
//
// Conditions:
// - The node has a LinearLayout parent
// - The node is the only sibling with a weight
// - The node has a height/width != 0

def parent = node.'..'
if (parent.is("LinearLayout") && node.'@android:layout_weight' &&
        parent.'*'.findAll{ it.'@android:layout_weight' }.size() == 1) {
    def dimension = parent.'@android:orientation' == "vertical" ?
        "android:layout_height" : "android:layout_width"
    if (node."@${dimension}"[0] != '0') {
        analysis << "Use an ${dimension} of 0dip instead of ${node."@${dimension}"} " +
                "for better performance"
    }
}