function() {
    var Module = {};

    {{{prepend_js}}}

    var HEAP8 = null;
    var HEAP16 = null;
    var HEAP32 = null;
    var HEAPU8 = null;
    var HEAPU16 = null;
    var HEAPU32 = null;
    var HEAPF32 = null;
    var HEAPF64 = null;

    Object.defineProperty( Module, 'exports', { value: {} } );

    function __web_on_grow() {
        var buffer = Module.instance.exports.memory.buffer;
        HEAP8 = new Int8Array( buffer );
        HEAP16 = new Int16Array( buffer );
        HEAP32 = new Int32Array( buffer );
        HEAPU8 = new Uint8Array( buffer );
        HEAPU16 = new Uint16Array( buffer );
        HEAPU32 = new Uint32Array( buffer );
        HEAPF32 = new Float32Array( buffer );
        HEAPF64 = new Float64Array( buffer );
        Module.HEAP8 = HEAP8;
        Module.HEAP16 = HEAP16;
        Module.HEAP32 = HEAP32;
        Module.HEAPU8 = HEAPU8;
        Module.HEAPU16 = HEAPU16;
        Module.HEAPU32 = HEAPU32;
        Module.HEAPF32 = HEAPF32;
        Module.HEAPF64 = HEAPF64;
    }

    return {
        imports: {
            env: {
                {{{snippets}}}
                "__web_on_grow": __web_on_grow
            }
        },
        initialize: function( instance ) {
            Object.defineProperty( Module, 'instance', { value: instance } );
            Object.defineProperty( Module, 'web_malloc', { value: Module.instance.exports.__web_malloc } );
            Object.defineProperty( Module, 'web_free', { value: Module.instance.exports.__web_free } );
            Object.defineProperty( Module, 'web_table', { value: Module.instance.exports.__indirect_function_table } );

            {{{exports}}}
            __web_on_grow();
            {{call_main}}

            return Module.exports;
        }
    };
}