Function WindowState

docs/app/js/sanddance-app.js:118831–118861

(_3)

}
const ValidWindowOps = Object.keys(WindowOps);
function WindowState(_3) {
    const ops = (0, _vegaUtil.array)(_3.ops), fields = (0, _vegaUtil.array)(_3.fields), params = (0, _vegaUtil.array)(_3.params), as = (0, _vegaUtil.array)(_3.as), outputs = this.outputs = [], windows = this.windows = [], inputs = {}, map = {}, counts = [], measures = [];
    let countOnly = true;
    function visitInputs(f) {
        (0, _vegaUtil.array)((0, _vegaUtil.accessorFields)(f)).forEach((_)=>inputs[_] = 1);
    }
    visitInputs(_3.sort);
    ops.forEach((op, i)=>{
        const field = fields[i], mname = (0, _vegaUtil.accessorName)(field), name = measureName(op, mname, as[i]);
        visitInputs(field);
        outputs.push(name); // Window operation
        if ((0, _vegaUtil.hasOwnProperty)(WindowOps, op)) windows.push(WindowOp(op, fields[i], params[i], name));
        else {
            if (field == null && op !== "count") (0, _vegaUtil.error)("Null aggregate field specified.");
            if (op === "count") {
                counts.push(name);
                return;
            }
            countOnly = false;
            let m = map[mname];
            if (!m) {
                m = map[mname] = [];
                m.field = field;
                measures.push(m);
            }
            m.push(createMeasure(op, name));
        }
    });
    if (counts.length || measures.length) this.cell = cell(measures, counts, countOnly);
    this.inputs = Object.keys(inputs);
}
const prototype = WindowState.prototype;
prototype.init = function() {
    this.windows.forEach((_)=>_.init());