Method toCSS

packages/less/lib/less/source-map-output.js:114–147

(context)

        }

        toCSS(context) {
            this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null });

            if (this._outputSourceFiles) {
                for (const filename in this._contentsMap) {
                    // eslint-disable-next-line no-prototype-builtins
                    if (this._contentsMap.hasOwnProperty(filename)) {
                        let source = this._contentsMap[filename];
                        if (this._contentsIgnoredCharsMap[filename]) {
                            source = source.slice(this._contentsIgnoredCharsMap[filename]);
                        }
                        this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source);
                    }
                }
            }

            this._rootNode.genCSS(context, this);

            if (this._css.length > 0) {
                let sourceMapURL;
                const sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());

                if (this.sourceMapURL) {
                    sourceMapURL = this.sourceMapURL;
                } else if (this._sourceMapFilename) {
                    sourceMapURL = this._sourceMapFilename;
                }
                this.sourceMapURL = sourceMapURL;

                this.sourceMap = sourceMapContent;
            }

            return this._css.join('');
        }
    }

    return SourceMapOutput;