@vendure/ngx-translate-extract/parsers/marker.parser.js

Extract strings from projects using ngx-translate

import { TranslationCollection } from '../utils/translation.collection.js';
import { getNamedImportAlias, findFunctionCallExpressions, getStringsFromExpression, getAST } from '../utils/ast-helpers.js';
const MARKER_MODULE_NAME = new RegExp('ngx-translate-extract-marker');
const MARKER_IMPORT_NAME = 'marker';
const NGX_TRANSLATE_MARKER_MODULE_NAME = '@ngx-translate/core';
const NGX_TRANSLATE_MARKER_IMPORT_NAME = '_';
export class MarkerParser {
    extract(source, filePath) {
        const sourceFile = getAST(source, filePath);
        const markerImportName = this.getMarkerImportNameFromSource(sourceFile);
        if (!markerImportName) {
            return null;
        }
        let collection = new TranslationCollection();
        const callExpressions = findFunctionCallExpressions(sourceFile, markerImportName);
        callExpressions.forEach((callExpression) => {
            const [firstArg] = callExpression.arguments;
            if (!firstArg) {
                return;
            }
            const strings = getStringsFromExpression(firstArg);
            collection = collection.addKeys(strings, filePath);
        });
        return collection;
    }
    getMarkerImportNameFromSource(sourceFile) {
        const markerImportName = getNamedImportAlias(sourceFile, MARKER_IMPORT_NAME, MARKER_MODULE_NAME) ||
            getNamedImportAlias(sourceFile, NGX_TRANSLATE_MARKER_IMPORT_NAME, NGX_TRANSLATE_MARKER_MODULE_NAME);
        return markerImportName ?? '';
    }
}