twing/dist/cjs/lib/tag-handler/from.js

First-class Twig engine for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createFromTagHandler = void 0;
const import_1 = require("../node/import");
const assignment_1 = require("../node/expression/assignment");
/**
 * Imports macros.
 *
 * <pre>
 *   {% from 'forms.html' import forms %}
 * </pre>
 */
const createFromTagHandler = () => {
    const tag = 'from';
    return {
        tag,
        initialize: (parser) => {
            return (token, stream) => {
                const templateName = parser.parseExpression(stream);
                stream.expect("NAME", 'import');
                const targets = new Map();
                do {
                    let name = stream.expect("NAME").value;
                    let alias = name;
                    if (stream.nextIf("NAME", 'as')) {
                        alias = stream.expect("NAME").value;
                    }
                    targets.set(name, alias);
                    if (!stream.nextIf("PUNCTUATION", ',')) {
                        break;
                    }
                } while (true);
                stream.expect("TAG_END");
                const aliasNode = (0, assignment_1.createAssignmentNode)(parser.getVarName(), token.line, token.column);
                const importNode = (0, import_1.createImportNode)(templateName, aliasNode, true, token.line, token.column, tag);
                for (const [name, alias] of targets) {
                    parser.addImportedSymbol("method", alias, name, aliasNode);
                }
                return importNode;
            };
        }
    };
};
exports.createFromTagHandler = createFromTagHandler;