webpack-angular-translate/dist/js/js-loader.js

Webpack plugin that extracts the translation-ids with the default texts.

"use strict";
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var path = __importStar(require("path"));
var escodegen = __importStar(require("escodegen"));
var acorn = __importStar(require("acorn"));
var source_map_1 = require("source-map");
var translate_visitor_1 = __importDefault(require("./translate-visitor"));
var loaderUtils = __importStar(require("loader-utils"));
/**
 * Webpack loader that extracts translations from calls to the angular-translate $translate service.
 * Additionally it provides the `i18n.registerTranslation(translationId, defaultText)` and `i18n.registerTranslations({})`
 * functions that can be used to register new translations directly in code.
 *
 * The loader uses acorn to parse the input file and creates the output javascript using escodegen.
 * @param source
 * @param inputSourceMaps
 */
function jsLoader(source, inputSourceMaps) {
    return __awaiter(this, void 0, void 0, function () {
        var loader, callback, _a, code, sourceMaps;
        return __generator(this, function (_b) {
            switch (_b.label) {
                case 0:
                    loader = this;
                    callback = this.async();
                    if (!loader.registerTranslation) {
                        return [2 /*return*/, callback(new Error("The WebpackAngularTranslate plugin is missing. Add the plugin to your webpack configurations 'plugins' section."), source, inputSourceMaps)];
                    }
                    if (loader.cacheable) {
                        loader.cacheable();
                    }
                    if (isExcludedResource(loader.resourcePath)) {
                        return [2 /*return*/, callback(null, source, inputSourceMaps)];
                    }
                    return [4 /*yield*/, extractTranslations(loader, source, inputSourceMaps)];
                case 1:
                    _a = _b.sent(), code = _a.code, sourceMaps = _a.sourceMaps;
                    callback(null, code, sourceMaps);
                    return [2 /*return*/];
            }
        });
    });
}
function extractTranslations(loader, source, sourceMaps) {
    return __awaiter(this, void 0, void 0, function () {
        var options, parserOptions, visitor, sourceAst, transformedAst, code, generateSourceMaps, result, codeWithSourceMap, originalSourceMap;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    options = loaderUtils.getOptions(loader) || {};
                    parserOptions = options.parserOptions || { ecmaVersion: "latest" };
                    loader.pruneTranslations(path.relative(loader.context, loader.resourcePath));
                    visitor = translate_visitor_1.default(loader, parserOptions);
                    sourceAst = acorn.parse(source, visitor.options);
                    transformedAst = visitor.visit(sourceAst);
                    code = source;
                    if (!visitor.changedAst) return [3 /*break*/, 3];
                    generateSourceMaps = !!(loader.sourceMap || sourceMaps);
                    result = escodegen.generate(transformedAst, {
                        comment: true,
                        sourceMap: generateSourceMaps ? loader.resourcePath : undefined,
                        sourceMapWithCode: generateSourceMaps,
                        sourceContent: generateSourceMaps ? source : undefined,
                    });
                    if (!generateSourceMaps) return [3 /*break*/, 3];
                    codeWithSourceMap = result;
                    code = codeWithSourceMap.code;
                    if (!sourceMaps) return [3 /*break*/, 2];
                    return [4 /*yield*/, new source_map_1.SourceMapConsumer(sourceMaps)];
                case 1:
                    originalSourceMap = _a.sent();
                    codeWithSourceMap.map.applySourceMap(originalSourceMap, loader.resourcePath);
                    _a.label = 2;
                case 2:
                    sourceMaps = codeWithSourceMap.map.toJSON();
                    _a.label = 3;
                case 3: return [2 /*return*/, { code: code, sourceMaps: sourceMaps }];
            }
        });
    });
}
function isExcludedResource(resource) {
    return /angular-translate[\/\\]dist[\/\\]angular-translate\.js$/.test(resource);
}
module.exports = jsLoader;
//# sourceMappingURL=js-loader.js.map