item.listMap is not a function

[zhongzhong0505]

"wrapper-webpack-plugin": "^2.1.0", "webpack": "^5.9.0", node: v14.15.1 npm: 6.14.9

[BlazenBundy]

Manually overwrite that ConcatSource.js with the below and test?

/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
"use strict";

const SourceNode = require("source-map").SourceNode;
const { SourceListMap, fromStringWithSourceMap } = require("source-list-map");
const Source = require("./Source");

class ConcatSource extends Source {
    constructor() {
        super();
        this.children = [];
        for(var i = 0; i < arguments.length; i++) {
            var item = arguments[i];
            if(item instanceof ConcatSource) {
                var children = item.children;
                for(var j = 0; j < children.length; j++)
                    this.children.push(children[j]);
            } else {
                this.children.push(item);
            }
        }
    }

    add(item) {
        if(item instanceof ConcatSource) {
            var children = item.children;
            for(var j = 0; j < children.length; j++)
                this.children.push(children[j]);
        } else {
            this.children.push(item);
        }
    }

    source() {
        let source = "";
        const children = this.children;
        for(let i = 0; i < children.length; i++) {
            const child = children[i];
            source += typeof child === "string" ? child : child.source();
        }
        return source;
    }

    size() {
        let size = 0;
        const children = this.children;
        for(let i = 0; i < children.length; i++) {
            const child = children[i];
            size += typeof child === "string" ? child.length : child.size();
        }
        return size;
    }

    node(options) {
        const node = new SourceNode(null, null, null, this.children.map(function(item) {
            return typeof item === "string" ? item : item.node(options);
        }));
        return node;
    }

    listMap(options) {
        //if (!this._isOptimized) this._optimize();
        const map = new SourceListMap();
        for (const item of this.children) {
            if (typeof item === "string") {
                map.add(item);
            } else if (typeof item.listMap === "function") {
                map.add(item.listMap(options));
            } else {
                const sourceAndMap = item.sourceAndMap(options);
                if (sourceAndMap.map) {
                    map.add(
                        fromStringWithSourceMap(sourceAndMap.source, sourceAndMap.map)
                    );
                } else {
                    map.add(sourceAndMap.source);
                }
            }
        }
        return map;
    }

    updateHash(hash) {
        var children = this.children;
        for(var i = 0; i < children.length; i++) {
            var item = children[i];
            if(typeof item === "string")
                hash.update(item);
            else
                item.updateHash(hash);
        }
    }
}

require("./SourceAndMapMixin")(ConcatSource.prototype);

module.exports = ConcatSource;

[levp]

16 fixed this.

Published version 2.2.0 includes this fix.