patch()

in javascript/sources/entry-common.js [259:293]

• 29 lines of code
• 10 McCabe index (conditional complexity)

    patch(lib.Node.prototype, fnName, function(original, ...args) {
      // We patch all these functions to add support for the following calls:
      // .setWidth(100) / .setWidth("100%") / .setWidth(.getWidth()) / .setWidth("auto")

      let value = args.pop();
      let unit, asNumber;

      if (value === 'auto') {
        unit = CONSTANTS.UNIT_AUTO;
        asNumber = undefined;
      } else if (value instanceof Value) {
        unit = value.unit;
        asNumber = value.valueOf();
      } else {
        unit =
          typeof value === 'string' && value.endsWith('%')
            ? CONSTANTS.UNIT_PERCENT
            : CONSTANTS.UNIT_POINT;
        asNumber = parseFloat(value);
        if (!Number.isNaN(value) && Number.isNaN(asNumber)) {
          throw new Error(`Invalid value ${value} for ${fnName}`);
        }
      }

      if (!methods[unit])
        throw new Error(
          `Failed to execute "${fnName}": Unsupported unit '${value}'`,
        );

      if (asNumber !== undefined) {
        return methods[unit].call(this, ...args, asNumber);
      } else {
        return methods[unit].call(this, ...args);
      }
    });