cesiumDemo/Source/Core/oneTimeWarning.js

import defaultValue from './defaultValue.js';
import defined from './defined.js';
import DeveloperError from './DeveloperError.js';

    var warnings = {};

    /**
     * Logs a one time message to the console.  Use this function instead of
     * <code>console.log</code> directly since this does not log duplicate messages
     * unless it is called from multiple workers.
     *
     * @exports oneTimeWarning
     *
     * @param {String} identifier The unique identifier for this warning.
     * @param {String} [message=identifier] The message to log to the console.
     *
     * @example
     * for(var i=0;i<foo.length;++i) {
     *    if (!defined(foo[i].bar)) {
     *       // Something that can be recovered from but may happen a lot
     *       oneTimeWarning('foo.bar undefined', 'foo.bar is undefined. Setting to 0.');
     *       foo[i].bar = 0;
     *       // ...
     *    }
     * }
     *
     * @private
     */
    function oneTimeWarning(identifier, message) {
        //>>includeStart('debug', pragmas.debug);
        if (!defined(identifier)) {
            throw new DeveloperError('identifier is required.');
        }
        //>>includeEnd('debug');

        if (!defined(warnings[identifier])) {
            warnings[identifier] = true;
            console.warn(defaultValue(message, identifier));
        }
    }

    oneTimeWarning.geometryOutlines = 'Entity geometry outlines are unsupported on terrain. Outlines will be disabled. To enable outlines, disable geometry terrain clamping by explicitly setting height to 0.';

    oneTimeWarning.geometryZIndex = 'Entity geometry with zIndex are unsupported when height or extrudedHeight are defined.  zIndex will be ignored';

    oneTimeWarning.geometryHeightReference = 'Entity corridor, ellipse, polygon or rectangle with heightReference must also have a defined height.  heightReference will be ignored';
    oneTimeWarning.geometryExtrudedHeightReference = 'Entity corridor, ellipse, polygon or rectangle with extrudedHeightReference must also have a defined extrudedHeight.  extrudedHeightReference will be ignored';
export default oneTimeWarning;