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this[type] is not a function #333

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@ghost

Description

I'm need to modify js file. So I parse my JSX with esprima, make some changes and then I'm trying to code AST into js. But I have this errorthis[type] is not a function

Code

import React from 'react';import { Route, IndexRoute } from 'react-router';import { Map } from 'immutable';import App from './containers/App';export const pages = new Map({    index: '/'});/*eslint-disable react/jsx-max-props-per-line*//*eslint-disable react/jsx-sort-props*//*eslint-disable max-len*/export default (    <Route path = { pages.get('index') } component = { App }>        <IndexRoute component = { App } />    </Route>    );

Parsing file:

        const file = fs.readFileSync(routes, 'utf8');        const parsedFile = esprima.parse(file, {            sourceType: 'module',            jsx: true,            comment: true        });        let token = false;        for (let i = 0; i < parsedFile.body.length; i++) {            if (parsedFile.body[i].type === 'ExportNamedDeclaration') {                const declarations = parsedFile.body[i].declaration.declarations;                for (let j = 0; j < declarations.length; j++) {                    if (declarations[j].id.name === 'pages') {                        const properties = declarations[j].init.arguments[0].properties;                        properties.push({                            type: 'Property',                            key: {type: 'Identifier', name: 'test'},                            computed: false,                            value: {type: 'Literal', value: '/test'},                            kind: 'init',                            method: false,                            shorthand: false                        });                    }                }            }            token = true;        }

Escoding:

        const code = escodegen.generate(parsedFile, {            format: {                indent: {                    style: '    ',                    base: 0,                    adjustMultilineComment: true                },                newline: '\n',                space: ' ',                json: false,                renumber: false,                hexadecimal: false,                quotes: 'single',                escapeless: false,                compact: false,                parentheses: true,                semicolons: true,                safeConcatenation: false            },            moz: {                starlessGenerator: false,                parenthesizedComprehensionBlock: false,                comprehensionExpressionStartsWithAssignment: false            },            parse: null,            comment: true,            sourceMap: undefined,            sourceMapRoot: null,            sourceMapWithCode: false,            file: undefined,            directive: false,            verbatim: undefined        });

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