Grammalecte  jsex_map.js at [1deba2f4d2]

File gc_core/js/jsex_map.js artifact 181b814a6e part of check-in 1deba2f4d2

// Map

if (Map.prototype.__grammalecte__ === undefined) {
    Map.prototype._shallowCopy = function () {
        let oNewMap = new Map();
        for (let [key, val] of this.entries()) {
            oNewMap.set(key, val);
        }
        return oNewMap;
    }

    Map.prototype._get = function (key, defaultValue) {
        let res = this.get(key);
        if (res !== undefined) {
            return res;
        }
        return defaultValue;
    }

    Map.prototype._toString = function () {
        // Default .toString() gives nothing useful
        let sRes = "{ ";
        for (let [k, v] of this.entries()) {
            sRes += (typeof k === "string") ? '"' + k + '": ' : k.toString() + ": ";
            sRes += (typeof v === "string") ? '"' + v + '", ' : v.toString() + ", ";
        }
        sRes = sRes.slice(0, -2) + " }"
        return sRes;
    }

    Map.prototype._update = function (dDict) {
        for (let [k, v] of dDict.entries()) {
            this.set(k, v);
        }
    }

    Map.prototype._updateOnlyExistingKeys = function (dDict) {
        for (let [k, v] of dDict.entries()) {
            if (this.has(k)){
                this.set(k, v);
            }
        }
    }

    Map.prototype.__grammalecte__ = true;
}