egui/docs/example_wasm.js

let wasm_bindgen;
(function() {
    const __exports = {};
    let wasm;

    const heap = new Array(32).fill(undefined);

    heap.push(undefined, null, true, false);

function getObject(idx) { return heap[idx]; }

let heap_next = heap.length;

function dropObject(idx) {
    if (idx < 36) return;
    heap[idx] = heap_next;
    heap_next = idx;
}

function takeObject(idx) {
    const ret = getObject(idx);
    dropObject(idx);
    return ret;
}

let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });

cachedTextDecoder.decode();

let cachegetUint8Memory0 = null;
function getUint8Memory0() {
    if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.memory.buffer) {
        cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
    }
    return cachegetUint8Memory0;
}

function getStringFromWasm0(ptr, len) {
    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
}

function addHeapObject(obj) {
    if (heap_next === heap.length) heap.push(heap.length + 1);
    const idx = heap_next;
    heap_next = heap[idx];

    heap[idx] = obj;
    return idx;
}

function debugString(val) {
    // primitive types
    const type = typeof val;
    if (type == 'number' || type == 'boolean' || val == null) {
        return  `${val}`;
    }
    if (type == 'string') {
        return `"${val}"`;
    }
    if (type == 'symbol') {
        const description = val.description;
        if (description == null) {
            return 'Symbol';
        } else {
            return `Symbol(${description})`;
        }
    }
    if (type == 'function') {
        const name = val.name;
        if (typeof name == 'string' && name.length > 0) {
            return `Function(${name})`;
        } else {
            return 'Function';
        }
    }
    // objects
    if (Array.isArray(val)) {
        const length = val.length;
        let debug = '[';
        if (length > 0) {
            debug += debugString(val[0]);
        }
        for(let i = 1; i < length; i++) {
            debug += ', ' + debugString(val[i]);
        }
        debug += ']';
        return debug;
    }
    // Test for built-in
    const builtInMatches = /\[object ([^\]]+)\]/.exec(toString.call(val));
    let className;
    if (builtInMatches.length > 1) {
        className = builtInMatches[1];
    } else {
        // Failed to match the standard '[object ClassName]'
        return toString.call(val);
    }
    if (className == 'Object') {
        // we're a user defined class or Object
        // JSON.stringify avoids problems with cycles, and is generally much
        // easier than looping through ownProperties of `val`.
        try {
            return 'Object(' + JSON.stringify(val) + ')';
        } catch (_) {
            return 'Object';
        }
    }
    // errors
    if (val instanceof Error) {
        return `${val.name}: ${val.message}\n${val.stack}`;
    }
    // TODO we could test for more things here, like `Set`s and `Map`s.
    return className;
}

let WASM_VECTOR_LEN = 0;

let cachedTextEncoder = new TextEncoder('utf-8');

const encodeString = (typeof cachedTextEncoder.encodeInto === 'function'
    ? function (arg, view) {
    return cachedTextEncoder.encodeInto(arg, view);
}
    : function (arg, view) {
    const buf = cachedTextEncoder.encode(arg);
    view.set(buf);
    return {
        read: arg.length,
        written: buf.length
    };
});

function passStringToWasm0(arg, malloc, realloc) {

    if (realloc === undefined) {
        const buf = cachedTextEncoder.encode(arg);
        const ptr = malloc(buf.length);
        getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);
        WASM_VECTOR_LEN = buf.length;
        return ptr;
    }

    let len = arg.length;
    let ptr = malloc(len);

    const mem = getUint8Memory0();

    let offset = 0;

    for (; offset < len; offset++) {
        const code = arg.charCodeAt(offset);
        if (code > 0x7F) break;
        mem[ptr + offset] = code;
    }

    if (offset !== len) {
        if (offset !== 0) {
            arg = arg.slice(offset);
        }
        ptr = realloc(ptr, len, len = offset + arg.length * 3);
        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);
        const ret = encodeString(arg, view);

        offset += ret.written;
    }

    WASM_VECTOR_LEN = offset;
    return ptr;
}

let cachegetInt32Memory0 = null;
function getInt32Memory0() {
    if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.memory.buffer) {
        cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
    }
    return cachegetInt32Memory0;
}
/**
* @param {string} canvas_id
* @param {number} pixels_per_point
* @returns {State}
*/
__exports.new_webgl_gui = function(canvas_id, pixels_per_point) {
    var ptr0 = passStringToWasm0(canvas_id, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
    var len0 = WASM_VECTOR_LEN;
    var ret = wasm.new_webgl_gui(ptr0, len0, pixels_per_point);
    return State.__wrap(ret);
};

function _assertClass(instance, klass) {
    if (!(instance instanceof klass)) {
        throw new Error(`expected instance of ${klass.name}`);
    }
    return instance.ptr;
}
/**
* @param {State} state
* @param {string} raw_input_json
* @returns {string}
*/
__exports.run_gui = function(state, raw_input_json) {
    try {
        _assertClass(state, State);
        var ptr0 = passStringToWasm0(raw_input_json, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        var len0 = WASM_VECTOR_LEN;
        wasm.run_gui(8, state.ptr, ptr0, len0);
        var r0 = getInt32Memory0()[8 / 4 + 0];
        var r1 = getInt32Memory0()[8 / 4 + 1];
        return getStringFromWasm0(r0, r1);
    } finally {
        wasm.__wbindgen_free(r0, r1);
    }
};

function isLikeNone(x) {
    return x === undefined || x === null;
}

function getArrayU8FromWasm0(ptr, len) {
    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);
}

function handleError(e) {
    wasm.__wbindgen_exn_store(addHeapObject(e));
}
/**
*/
class State {

    static __wrap(ptr) {
        const obj = Object.create(State.prototype);
        obj.ptr = ptr;

        return obj;
    }

    free() {
        const ptr = this.ptr;
        this.ptr = 0;

        wasm.__wbg_state_free(ptr);
    }
}
__exports.State = State;

async function load(module, imports) {
    if (typeof Response === 'function' && module instanceof Response) {

        if (typeof WebAssembly.instantiateStreaming === 'function') {
            try {
                return await WebAssembly.instantiateStreaming(module, imports);

            } catch (e) {
                if (module.headers.get('Content-Type') != 'application/wasm') {
                    console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);

                } else {
                    throw e;
                }
            }
        }

        const bytes = await module.arrayBuffer();
        return await WebAssembly.instantiate(bytes, imports);

    } else {

        const instance = await WebAssembly.instantiate(module, imports);

        if (instance instanceof WebAssembly.Instance) {
            return { instance, module };

        } else {
            return instance;
        }
    }
}

async function init(input) {
    if (typeof input === 'undefined') {
        let src;
        if (typeof document === 'undefined') {
            src = location.href;
        } else {
            src = document.currentScript.src;
        }
        input = src.replace(/\.js$/, '_bg.wasm');
    }
    const imports = {};
    imports.wbg = {};
    imports.wbg.__wbindgen_object_drop_ref = function(arg0) {
        takeObject(arg0);
    };
    imports.wbg.__wbindgen_string_new = function(arg0, arg1) {
        var ret = getStringFromWasm0(arg0, arg1);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_instanceof_Window_a633dbe0900c728a = function(arg0) {
        var ret = getObject(arg0) instanceof Window;
        return ret;
    };
    imports.wbg.__wbg_document_07444f1bbea314bb = function(arg0) {
        var ret = getObject(arg0).document;
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_performance_cc98652048194dbe = function(arg0) {
        var ret = getObject(arg0).performance;
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_getElementById_633c94a971ae0eb9 = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).getElementById(getStringFromWasm0(arg1, arg2));
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_instanceof_WebGlRenderingContext_3aadcbc31d1748d3 = function(arg0) {
        var ret = getObject(arg0) instanceof WebGLRenderingContext;
        return ret;
    };
    imports.wbg.__wbg_drawingBufferWidth_50e3f45aea4750e2 = function(arg0) {
        var ret = getObject(arg0).drawingBufferWidth;
        return ret;
    };
    imports.wbg.__wbg_drawingBufferHeight_711d2661310b16d2 = function(arg0) {
        var ret = getObject(arg0).drawingBufferHeight;
        return ret;
    };
    imports.wbg.__wbg_bufferData_985a5ff391474177 = function(arg0, arg1, arg2, arg3) {
        getObject(arg0).bufferData(arg1 >>> 0, getObject(arg2), arg3 >>> 0);
    };
    imports.wbg.__wbg_texImage2D_97bf65dbb078a110 = function(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10) {
        try {
            getObject(arg0).texImage2D(arg1 >>> 0, arg2, arg3, arg4, arg5, arg6, arg7 >>> 0, arg8 >>> 0, arg9 === 0 ? undefined : getArrayU8FromWasm0(arg9, arg10));
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbg_activeTexture_284cde3f352835a4 = function(arg0, arg1) {
        getObject(arg0).activeTexture(arg1 >>> 0);
    };
    imports.wbg.__wbg_attachShader_9564db836e3d4ece = function(arg0, arg1, arg2) {
        getObject(arg0).attachShader(getObject(arg1), getObject(arg2));
    };
    imports.wbg.__wbg_bindBuffer_6cc973b0a3488535 = function(arg0, arg1, arg2) {
        getObject(arg0).bindBuffer(arg1 >>> 0, getObject(arg2));
    };
    imports.wbg.__wbg_bindTexture_812a67a84575f09d = function(arg0, arg1, arg2) {
        getObject(arg0).bindTexture(arg1 >>> 0, getObject(arg2));
    };
    imports.wbg.__wbg_blendFunc_25c67ec3e4deab0e = function(arg0, arg1, arg2) {
        getObject(arg0).blendFunc(arg1 >>> 0, arg2 >>> 0);
    };
    imports.wbg.__wbg_clear_c50cee241485d576 = function(arg0, arg1) {
        getObject(arg0).clear(arg1 >>> 0);
    };
    imports.wbg.__wbg_clearColor_ce7ee2c8c34d229d = function(arg0, arg1, arg2, arg3, arg4) {
        getObject(arg0).clearColor(arg1, arg2, arg3, arg4);
    };
    imports.wbg.__wbg_compileShader_91ce1c5df480321c = function(arg0, arg1) {
        getObject(arg0).compileShader(getObject(arg1));
    };
    imports.wbg.__wbg_createBuffer_1b29c13abf687b68 = function(arg0) {
        var ret = getObject(arg0).createBuffer();
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_createProgram_0bbeea9ffc5daa63 = function(arg0) {
        var ret = getObject(arg0).createProgram();
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_createShader_cdd9f1769cd1de1e = function(arg0, arg1) {
        var ret = getObject(arg0).createShader(arg1 >>> 0);
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_createTexture_7fc81a3938b40da8 = function(arg0) {
        var ret = getObject(arg0).createTexture();
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_drawElements_83168f7468007ab3 = function(arg0, arg1, arg2, arg3, arg4) {
        getObject(arg0).drawElements(arg1 >>> 0, arg2, arg3 >>> 0, arg4);
    };
    imports.wbg.__wbg_enable_afe858cc8ac02cab = function(arg0, arg1) {
        getObject(arg0).enable(arg1 >>> 0);
    };
    imports.wbg.__wbg_enableVertexAttribArray_1b8360d81db7d6f0 = function(arg0, arg1) {
        getObject(arg0).enableVertexAttribArray(arg1 >>> 0);
    };
    imports.wbg.__wbg_getAttribLocation_ce1df105f2722b0b = function(arg0, arg1, arg2, arg3) {
        var ret = getObject(arg0).getAttribLocation(getObject(arg1), getStringFromWasm0(arg2, arg3));
        return ret;
    };
    imports.wbg.__wbg_getProgramInfoLog_2a1da5b17664faa9 = function(arg0, arg1, arg2) {
        var ret = getObject(arg1).getProgramInfoLog(getObject(arg2));
        var ptr0 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        var len0 = WASM_VECTOR_LEN;
        getInt32Memory0()[arg0 / 4 + 1] = len0;
        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
    };
    imports.wbg.__wbg_getProgramParameter_ff1b7fa34d0991f5 = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).getProgramParameter(getObject(arg1), arg2 >>> 0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_getShaderInfoLog_5a8842f27648dd20 = function(arg0, arg1, arg2) {
        var ret = getObject(arg1).getShaderInfoLog(getObject(arg2));
        var ptr0 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        var len0 = WASM_VECTOR_LEN;
        getInt32Memory0()[arg0 / 4 + 1] = len0;
        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
    };
    imports.wbg.__wbg_getShaderParameter_9fe8d76217a4969c = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).getShaderParameter(getObject(arg1), arg2 >>> 0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_getUniformLocation_bcdd3b3a38c50a03 = function(arg0, arg1, arg2, arg3) {
        var ret = getObject(arg0).getUniformLocation(getObject(arg1), getStringFromWasm0(arg2, arg3));
        return isLikeNone(ret) ? 0 : addHeapObject(ret);
    };
    imports.wbg.__wbg_linkProgram_cba038b57a3871ef = function(arg0, arg1) {
        getObject(arg0).linkProgram(getObject(arg1));
    };
    imports.wbg.__wbg_shaderSource_57dcf3bb9d5a2045 = function(arg0, arg1, arg2, arg3) {
        getObject(arg0).shaderSource(getObject(arg1), getStringFromWasm0(arg2, arg3));
    };
    imports.wbg.__wbg_texParameteri_0538bb1eb7de4f3b = function(arg0, arg1, arg2, arg3) {
        getObject(arg0).texParameteri(arg1 >>> 0, arg2 >>> 0, arg3);
    };
    imports.wbg.__wbg_uniform1i_bc5e1e88172a4393 = function(arg0, arg1, arg2) {
        getObject(arg0).uniform1i(getObject(arg1), arg2);
    };
    imports.wbg.__wbg_uniform2f_c1a2fa4599b15748 = function(arg0, arg1, arg2, arg3) {
        getObject(arg0).uniform2f(getObject(arg1), arg2, arg3);
    };
    imports.wbg.__wbg_uniform4f_6e9aa69017843be0 = function(arg0, arg1, arg2, arg3, arg4, arg5) {
        getObject(arg0).uniform4f(getObject(arg1), arg2, arg3, arg4, arg5);
    };
    imports.wbg.__wbg_useProgram_324a22a196d1f113 = function(arg0, arg1) {
        getObject(arg0).useProgram(getObject(arg1));
    };
    imports.wbg.__wbg_vertexAttribPointer_0e306f7de4de676a = function(arg0, arg1, arg2, arg3, arg4, arg5, arg6) {
        getObject(arg0).vertexAttribPointer(arg1 >>> 0, arg2, arg3 >>> 0, arg4 !== 0, arg5, arg6);
    };
    imports.wbg.__wbg_viewport_e581bdce9dbf078f = function(arg0, arg1, arg2, arg3, arg4) {
        getObject(arg0).viewport(arg1, arg2, arg3, arg4);
    };
    imports.wbg.__wbg_now_ce4a6a89baf241c9 = function(arg0) {
        var ret = getObject(arg0).now();
        return ret;
    };
    imports.wbg.__wbg_instanceof_HtmlCanvasElement_c6a06fc9a851a478 = function(arg0) {
        var ret = getObject(arg0) instanceof HTMLCanvasElement;
        return ret;
    };
    imports.wbg.__wbg_width_e29d6e8a5c409d12 = function(arg0) {
        var ret = getObject(arg0).width;
        return ret;
    };
    imports.wbg.__wbg_height_f1097727b2ec35e1 = function(arg0) {
        var ret = getObject(arg0).height;
        return ret;
    };
    imports.wbg.__wbg_getContext_2151b76e11a6eb39 = function(arg0, arg1, arg2) {
        try {
            var ret = getObject(arg0).getContext(getStringFromWasm0(arg1, arg2));
            return isLikeNone(ret) ? 0 : addHeapObject(ret);
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbg_call_804d3ad7e8acd4d5 = function(arg0, arg1) {
        try {
            var ret = getObject(arg0).call(getObject(arg1));
            return addHeapObject(ret);
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {
        var ret = getObject(arg0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_newnoargs_ebdc90c3d1e4e55d = function(arg0, arg1) {
        var ret = new Function(getStringFromWasm0(arg0, arg1));
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_globalThis_48a5e9494e623f26 = function() {
        try {
            var ret = globalThis.globalThis;
            return addHeapObject(ret);
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbg_self_25067cb019cade42 = function() {
        try {
            var ret = self.self;
            return addHeapObject(ret);
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbg_window_9e80200b35aa30f8 = function() {
        try {
            var ret = window.window;
            return addHeapObject(ret);
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbg_global_7583a634265a91fc = function() {
        try {
            var ret = global.global;
            return addHeapObject(ret);
        } catch (e) {
            handleError(e)
        }
    };
    imports.wbg.__wbindgen_is_undefined = function(arg0) {
        var ret = getObject(arg0) === undefined;
        return ret;
    };
    imports.wbg.__wbg_buffer_f897a8d316863411 = function(arg0) {
        var ret = getObject(arg0).buffer;
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_new_af4a59d3b3f5181e = function(arg0) {
        var ret = new Int16Array(getObject(arg0));
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_new_da17c07b1fbb4a8b = function(arg0) {
        var ret = new Uint8Array(getObject(arg0));
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_new_4a7b173cfef3dba5 = function(arg0) {
        var ret = new Uint16Array(getObject(arg0));
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_new_4546c9674ba984b4 = function(arg0) {
        var ret = new Float32Array(getObject(arg0));
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_subarray_906b02024572f8b3 = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).subarray(arg1 >>> 0, arg2 >>> 0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_subarray_c77de664af940d15 = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).subarray(arg1 >>> 0, arg2 >>> 0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_subarray_bc57107545fd152f = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).subarray(arg1 >>> 0, arg2 >>> 0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_subarray_cb31efc6e4847e6e = function(arg0, arg1, arg2) {
        var ret = getObject(arg0).subarray(arg1 >>> 0, arg2 >>> 0);
        return addHeapObject(ret);
    };
    imports.wbg.__wbg_instanceof_Memory_7ccbf540b50fc2bf = function(arg0) {
        var ret = getObject(arg0) instanceof WebAssembly.Memory;
        return ret;
    };
    imports.wbg.__wbindgen_boolean_get = function(arg0) {
        const v = getObject(arg0);
        var ret = typeof(v) === 'boolean' ? (v ? 1 : 0) : 2;
        return ret;
    };
    imports.wbg.__wbindgen_debug_string = function(arg0, arg1) {
        var ret = debugString(getObject(arg1));
        var ptr0 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        var len0 = WASM_VECTOR_LEN;
        getInt32Memory0()[arg0 / 4 + 1] = len0;
        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
    };
    imports.wbg.__wbindgen_throw = function(arg0, arg1) {
        throw new Error(getStringFromWasm0(arg0, arg1));
    };
    imports.wbg.__wbindgen_rethrow = function(arg0) {
        throw takeObject(arg0);
    };
    imports.wbg.__wbindgen_memory = function() {
        var ret = wasm.memory;
        return addHeapObject(ret);
    };

    if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {
        input = fetch(input);
    }

    const { instance, module } = await load(await input, imports);

    wasm = instance.exports;
    init.__wbindgen_wasm_module = module;

    return wasm;
}

wasm_bindgen = Object.assign(init, __exports);

})();