Uncaught TypeError: soljson.cwrap is not a function

[KaceyBolman]

Hello. friends.
I am trying to import solc js in react mobx project.
But when use code "var solc = require('solc')", i am getting "Type error soljson.cwrap is not function".
If anyone know the way to fix or has sample, Please teach me.

[xas]

Hi,
I got the same problem.
node v10.4.1
npm v6.1.0
Created a react app from scratch (without using create-react-app script)
App running.
npm i -s solc

Then at first hit of var solc = require('solc') got the error

TypeError: soljson.cwrap is not a function
setupMethods webpack:///./node_modules/solc/wrapper.js?:9:21
<anonyme>webpack:///./node_modules/solc/index.js?:3:18

I'm running in a dev environment, using webpack-dev-server.

Hope you got enough informations.

[KaceyBolman]

node v6.11.2
npm v3.10.10
i tried to use solcjs my old react app for electron, mobx and webpack.
But when added a line of var solc = require('solc').
Uncaught TypeError: soljson.cwrap is not a function
at setupMethods (eval at (bundle.js:3650), :9:29)
at eval (eval at (bundle.js:3644), :3:18)

[xas]

Seems related to #31 but not sure if same reasons.

[CorentinPacaud]

So, is it fixed ?

[muhammadikramzafar]

For the One Using Electron js .
I had the same issue but resolved by moving var solc = require('solc') from client side to server side .
As sloc does not work on client side .
Hope this will resolve the issue

[mhy12345]

I have a solution, but it is a little complicated...

My environment is Node.v13.11.0, Create-React-App(ejected), Chrome. I encountered both this problem and the problem in issue #456.

When I directly use require('solc') in App.js, the chrome gives an error.

Uncaught RangeError: WebAssembly.Compile is disallowed on the main thread, if the buffer size is larger than 4KB. Use WebAssembly.compile, or compile on a worker thread.

Follow by the solution in ##456, I tried to use Web-Worker and Worker-Loader (React), to move the whole solc module into the worker thread.

The following two cases show the difference between a main thread import & worker thread import.

Case1:

index.html

    <script type="text/javascript" src="http://127.0.0.1:8080/static/soljson.js"></script>

App.js

console.log('main soljson', window.Module);

Output

main soljson 
{HEAP8: Int8Array(16777216), HEAP16: Int16Array(8388608), HEAP32: Int32Array(4194304), HEAPU8: Uint8Array(16777216), HEAPU16: Uint16Array(8388608), …}
HEAP8: Int8Array(16777216) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAP16: Int16Array(8388608) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAP32: Int32Array(4194304) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPU8: Uint8Array(16777216) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPU16: Uint16Array(8388608) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPU32: Uint32Array(4194304) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPF32: Float32Array(4194304) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPF64: Float64Array(2097152) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
preloadedImages: {}
preloadedAudios: {}
asm: ƒ createWasm()
__proto__: Object

Case 2:

App.js (worker-loader installed).

import Worker from './solc.worker.js';

solc.worker.js

importScripts('http://127.0.0.1:8080/static/soljson.js'); // Local copy of https://ethereum.github.io/solc-bin/bin/soljson-v0.6.6+commit.6c089d02.js
let soljson = Module;
console.log('worker soljson = ', soljson);

Output

worker soljson =  
{HEAP8: Int8Array(16777216), HEAP16: Int16Array(8388608), HEAP32: Int32Array(4194304), HEAPU8: Uint8Array(16777216), HEAPU16: Uint16Array(8388608), …}
HEAP8: Int8Array(16777216) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAP16: Int16Array(8388608) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAP32: Int32Array(4194304) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPU8: Uint8Array(16777216) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPU16: Uint16Array(8388608) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPU32: Uint32Array(4194304) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPF32: Float32Array(4194304) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
HEAPF64: Float64Array(2097152) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, …]
preloadedImages: {}
preloadedAudios: {}
asm: {__growWasmMemory: ƒ, __ZSt18uncaught_exceptionv: ƒ, ___cxa_can_catch: ƒ, ___cxa_is_pointer_type: ƒ, __get_environ: ƒ, …}
__ZSt18uncaught_exceptionv: ƒ 6255()
___cxa_can_catch: ƒ 7180()
___cxa_is_pointer_type: ƒ 7181()
__get_environ: ƒ 6236()
_emscripten_get_sbrk_ptr: ƒ 7183()
_emscripten_replace_memory: undefined
_free: ƒ 6775()
_llvm_bswap_i32: ƒ 7184()
_malloc: ƒ 6774()
_memcpy: ƒ 7185()
_memmove: ƒ 7186()
_memset: ƒ 7187()
_setThrew: ƒ 7182()
_solidity_alloc: ƒ 128()
_solidity_compile: ƒ 127()
_solidity_free: ƒ 129()
_solidity_license: ƒ 124()
_solidity_reset: ƒ 130()
_solidity_version: ƒ 126()
establishStackSpace: ƒ 123()
globalCtors: ƒ 119()
stackAlloc: ƒ 120()
stackRestore: ƒ 122()
stackSave: ƒ 121()
dynCall_diii: ƒ 7188()
dynCall_fiii: ƒ 7209()
dynCall_i: ƒ 7230()
dynCall_ii: ƒ 7251()
dynCall_iidi: ƒ 7272()
dynCall_iidiiii: ƒ 7293()
dynCall_iii: ƒ 7314()
dynCall_iiii: ƒ 7335()
dynCall_iiiii: ƒ 7356()
dynCall_iiiiid: ƒ 7377()
dynCall_iiiiii: ƒ 7398()
dynCall_iiiiiid: ƒ 7419()
dynCall_iiiiiii: ƒ 7440()
dynCall_iiiiiiii: ƒ 7461()
dynCall_iiiiiiiii: ƒ 7482()
....
dynCall_vijiiiiiiiiiiii: ƒ 8156()
cwrap: ƒ cwrap(ident,returnType,argTypes,opts)
setValue: ƒ setValue(ptr,value,type,noSafe)
UTF8ToString: ƒ UTF8ToString(ptr,maxBytesToRead)
stringToUTF8: ƒ stringToUTF8(str,outPtr,maxBytesToWrite)
lengthBytesUTF8: ƒ lengthBytesUTF8(str)
addFunction: ƒ addFunction(func,sig)
removeFunction: ƒ removeFunction(index)
run: ƒ run(args)
__proto__: Object

Compare two output messages, we can find that the module required by main thread was somehow incompleted. I guess it is caused by some restriction (such as file size limit in main thread) in WebASM.

So, here is my solution:

Step1. Use Web-Worker to load soljson. The soljson module was store in object Module as mentioned in Readme.md.

importScripts('http://127.0.0.1:8080/static/soljson.js'); // Local copy of https://ethereum.github.io/solc-bin/bin/soljson-v0.6.6+commit.6c089d02.js
let soljson = Module;
console.log('worker soljson = ', soljson);

Step2. The solc object we use is defined as setupMethods(soljson), while setupMethods was defined in node_modules/solc/wrapper.js. We cannot just copy this file out, because this file require other packages. The only solution I came out is to create a new Webpack project to organize the mess relationship.

webpack.config.js

const path = require('path');

module.exports = {
    entry: './src/index.js',
    output: {
        filename: 'solc.bundle.js',
        path: path.resolve(__dirname, 'dist'),
        globalObject: "self",
    },
    externals: {
        fs: {
            root: 'fs',
        },
        module: {
            root: 'module',
        }
    }
};

src/index.js

import wrapper from 'solc/wrapper';
var solc = wrapper(Module);
try{
    global.solc = solc; // Note that the global object in WebWorker is not `window`
} catch (err) {
    console.log("[Webpack-bundle] err ", err);
}

The webpack generate file solc.bundle.js was copied to static asset directory, an we can finally get the solc out in worker thread.

importScripts('http://127.0.0.1:8080/static/soljson.js'); // Local copy of https://ethereum.github.io/solc-bin/bin/soljson-v0.6.6+commit.6c089d02.js
let soljson = Module;
console.log('worker soljson = ', soljson);
importScripts('http://127.0.0.1:8080/static/solc.bundle.js');
console.log("solc = ", solc);
var input = {
    language: 'Solidity',
    sources: {
      'test.sol': {
        content: 'import "lib.sol"; contract C { function f() public { L.f(); } }'
      }
    },
    settings: {
      outputSelection: {
        '*': {
          '*': ['*']
        }
      }
    }
  };
  
  function findImports(path) {
    if (path === 'lib.sol')
      return {
        contents:
          'library L { function f() internal returns (uint) { return 7; } }'
      };
    else return { error: 'File not found' };
  }
  
  // New syntax (supported from 0.5.12, mandatory from 0.6.0)
  var output = JSON.parse(
    solc.compile(JSON.stringify(input), { import: findImports })
  );
  
  // `output` here contains the JSON output as specified in the documentation
  for (var contractName in output.contracts['test.sol']) {
    console.log(
      contractName +
        ': ' +
        output.contracts['test.sol'][contractName].evm.bytecode.object
    );
  }

Output

solc =  {lowlevel: {…}, features: {…}, version: ƒ, semver: ƒ, license: ƒ, …}version: ƒ ()semver: ƒ ()license: ƒ ()lowlevel: {compileSingle: null, compileMulti: null, compileCallback: null, compileStandard: ƒ}features: {legacySingleInput: false, multipleInputs: true, importCallback: true, nativeStandardJSON: true}compile: ƒ (e,t)loadRemoteVersion: ƒ (t,r)setupMethods: ƒ e(t)__proto__: Object
solc.worker.js:38 C: 6080604052348015600f57600080fd5b50607d8061001e6000396000f3fe6080604052348015600f57600080fd5b506004361060285760003560e01c806326121ff014602d575b600080fd5b60336035565b005b603b603e565b50565b6000600790509056fea26469706673582212200175dadb4933a08479217c347b1aeaed42250b314407f7855bf36849a823e8af64736f6c63430006050033
solc.worker.js:38 C: 6080604052348015600f57600080fd5b50607d8061001e6000396000f3fe6080604052348015600f57600080fd5b506004361060285760003560e01c806326121ff014602d575b600080fd5b60336035565b005b603b603e565b50565b6000600790509056fea26469706673582212200175dadb4933a08479217c347b1aeaed42250b314407f7855bf36849a823e8af64736f6c63430006050033

If you don't want to wast your time installing webpack, here is my solc.bundle.js

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/*
object-assign
(c) Sindre Sorhus
@license MIT
*/var n=Object.getOwnPropertySymbols,i=Object.prototype.hasOwnProperty,o=Object.prototype.propertyIsEnumerable;function s(e){if(null==e)throw new TypeError("Object.assign cannot be called with null or undefined");return Object(e)}e.exports=function(){try{if(!Object.assign)return!1;var e=new String("abc");if(e[5]="de","5"===Object.getOwnPropertyNames(e)[0])return!1;for(var t={},r=0;r<10;r++)t["_"+String.fromCharCode(r)]=r;if("0123456789"!==Object.getOwnPropertyNames(t).map((function(e){return t[e]})).join(""))return!1;var n={};return"abcdefghijklmnopqrst".split("").forEach((function(e){n[e]=e})),"abcdefghijklmnopqrst"===Object.keys(Object.assign({},n)).join("")}catch(e){return!1}}()?Object.assign:function(e,t){for(var r,a,u=s(e),f=1;f<arguments.length;f++){for(var c in r=Object(arguments[f]))i.call(r,c)&&(u[c]=r[c]);if(n){a=n(r);for(var l=0;l<a.length;l++)o.call(r,a[l])&&(u[a[l]]=r[a[l]])}}return u}},function(e,t){e.exports=function(e){return e&&"object"==typeof e&&"function"==typeof e.copy&&"function"==typeof e.fill&&"function"==typeof e.readUInt8}},function(e,t){"function"==typeof Object.create?e.exports=function(e,t){e.super_=t,e.prototype=Object.create(t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}})}:e.exports=function(e,t){e.super_=t;var r=function(){};r.prototype=t.prototype,e.prototype=new r,e.prototype.constructor=e}},function(e,t,r){var n=r(29);function i(e){if(null===e)return"infinite";if("number"==typeof e)return e.toString();var t={};for(var r in e)t[r]=i(e[r]);return t}e.exports={versionToSemver:function(e){var t=e.match(/^([0-9]+\.[0-9]+\.[0-9]+)-([0-9a-f]{8})[/*].*$/);return t?t[1]+"+commit."+t[2]:-1!==e.indexOf("0.1.3-0")?"0.1.3":-1!==e.indexOf("0.3.5-0")?"0.3.5":e},translateJsonCompilerOutput:function(e,t){var r,o={errors:[]};for(var s in r=e.error?[e.error]:e.errors,function(e,t){for(var r in t){var n="error",i=/^(.*):(\d+):(\d+):(.*):/;(i=i.exec(t[r]))?n=i[4].trim():t[r].indexOf(": Warning:")?n="Warning":t[r].indexOf(": Error:")&&(n="Error"),e.push({type:n,component:"general",severity:"Warning"===n?"warning":"error",message:t[r],formattedMessage:t[r]})}}(o.errors,r),o.contracts={},e.contracts){var a=s.match(/^(([^:]*):)?([^:]+)$/);if(4!==a.length)return null;var u=a[2];void 0===u&&(u="");var f=a[3],c=e.contracts[s],l=c.gasEstimates,h={};l.creation&&(h.creation={codeDepositCost:i(l.creation[1]),executionCost:i(l.creation[0])}),l.internal&&(h.internal=i(l.internal)),l.external&&(h.external=i(l.external));var p={abi:JSON.parse(c.interface),metadata:c.metadata,evm:{legacyAssembly:c.assembly,bytecode:{object:c.bytecode&&n.linkBytecode(c.bytecode,t||{}),opcodes:c.opcodes,sourceMap:c.srcmap,linkReferences:c.bytecode&&n.findLinkReferences(c.bytecode)},deployedBytecode:{object:c.runtimeBytecode&&n.linkBytecode(c.runtimeBytecode,t||{}),sourceMap:c.srcmapRuntime,linkReferences:c.runtimeBytecode&&n.findLinkReferences(c.runtimeBytecode)},methodIdentifiers:c.functionHashes,gasEstimates:h}};o.contracts[u]||(o.contracts[u]={}),o.contracts[u][f]=p}var d={};for(var y in e.sourceList)d[e.sourceList[y]]=y;for(var g in o.sources={},e.sources)o.sources[g]={id:d[g],legacyAST:e.sources[g].AST};return o},prettyPrintLegacyAssemblyJSON:function(e,t){return function e(t,r,n){if("string"==typeof t||null==t)return r+(t||"")+"\n";var i=r+".code\n";t[".code"].forEach((function(e,t){var o=void 0===e.value?"":e.value,s="";void 0!==n&&void 0!==e.begin&&void 0!==e.end&&(s=function(e){return e.replace(/\n/g,"\\n").replace(/\r/g,"\\r").replace(/\t/g,"\\t")}(n.slice(e.begin,e.end))),s.length>30&&(s=s.slice(0,30)+"..."),"tag"!==e.name&&(i+="  "),i+=r+e.name+" "+o+"\t\t\t"+s+"\n"})),i+=r+".data\n";var o=t[".data"]||[];for(var s in o){var a=o[s];i+="  "+r+s+":\n",i+=e(a,r+"    ",n)}return i}(e,"",t)}}},function(e,t,r){var n=r(12),i=r(30).keccak256;e.exports={linkBytecode:function(e,t){n("string"==typeof e),n("object"==typeof t);var r={};for(var o in t)if("object"==typeof t[o])for(var s in t[o])r[s]=t[o][s],r[o+":"+s]=t[o][s];else{var a=o.match(/^([^:]+):(.+)$/);a&&(r[a[2]]=t[o]),r[o]=t[o]}for(o in r){var u=r[o];if("0x"!==u.slice(0,2)||u.length>42)throw new Error("Invalid address specified for "+o);u=u.slice(2),u=Array(40-u.length+1).join("0")+u;var f=function(t){for(var r=t.slice(0,36),n="__"+r+Array(37-r.length).join("_")+"__";e.indexOf(n)>=0;)e=e.replace(n,u)};f(o),f("$"+i(o).slice(0,34)+"$")}return e},findLinkReferences:function(e){n("string"==typeof e);for(var t={},r=0;;){var i=e.match(/__(.{36})__/);if(!i)break;var o=i.index,s=i[1].replace(/_+$/gm,"");t[s]||(t[s]=[]),t[s].push({start:(r+o)/2,length:20}),r+=o+20,e=e.slice(o+20)}return t}}},function(e,t,r){(function(n,i){var o;
/**
 * [js-sha3]{@link https://github.com/emn178/js-sha3}
 *
 * @version 0.8.0
 * @author Chen, Yi-Cyuan [emn178@gmail.com]
 * @copyright Chen, Yi-Cyuan 2015-2018
 * @license MIT
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r=S(e,t,"hex");return r.create=function(r){return new I(e,t,r)},r.update=function(e,t){return r.create(t).update(e)},A(r,S,e,t)}},{name:"cshake",padding:d,bits:m,createMethod:function(e,t){var r=w[e],n=E(e,0,"hex");return n.create=function(n,i,o){return i||o?new I(e,t,n).bytepad([i,o],r):j["shake"+e].create(n)},n.update=function(e,t,r,i){return n.create(t,r,i).update(e)},A(n,E,e,t)}},{name:"kmac",padding:d,bits:m,createMethod:function(e,t){var r=w[e],n=x(e,0,"hex");return n.create=function(n,i,o){return new N(e,t,i).bytepad(["KMAC",o],r).bytepad([n],r)},n.update=function(e,t,r,i){return n.create(e,r,i).update(t)},A(n,x,e,t)}}],j={},R=[],k=0;k<T.length;++k)for(var C=T[k],P=C.bits,M=0;M<P.length;++M){var B=C.name+"_"+P[M];if(R.push(B),j[B]=C.createMethod(P[M],C.padding),"sha3"!==C.name){var L=C.name+P[M];R.push(L),j[L]=j[B]}}function 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le(e,t,">",r)},t.outside=le,t.prerelease=function(e,t){var r=$(e,t);return r&&r.prerelease.length?r.prerelease:null},t.intersects=function(e,t,r){return e=new se(e,r),t=new se(t,r),e.intersects(t)},t.coerce=function(e){if(e instanceof J)return e;if("string"!=typeof e)return null;var t=e.match(o[k]);if(null==t)return null;return $(t[1]+"."+(t[2]||"0")+"."+(t[3]||"0"))}}).call(this,r(1))}]);

[Tectract]

BUMP.

This is preventing my inline browser ethereum toolset from working in chrome:

soljson-v0.6.9+commit.3e3065ac.js:1 failed to compile wasm module: RangeError: WebAssembly.Compile is disallowed on the main thread, if the buffer size is larger than 4KB. Use WebAssembly.compile, or compile on a worker thread.
instantiateSync @ soljson-v0.6.9+commit.3e3065ac.js:1
createWasm @ soljson-v0.6.9+commit.3e3065ac.js:1
(anonymous) @ soljson-v0.6.9+commit.3e3065ac.js:1
soljson-v0.6.9+commit.3e3065ac.js:1 Uncaught RangeError: WebAssembly.Compile is disallowed on the main thread, if the buffer size is larger than 4KB. Use WebAssembly.compile, or compile on a worker thread.
at instantiateSync (soljson-v0.6.9+commit.3e3065ac.js:1)
at Object.createWasm [as asm] (soljson-v0.6.9+commit.3e3065ac.js:1)
at soljson-v0.6.9+commit.3e3065ac.js:1

It appears that soljson-v0.6.9 is incorrectly loading webassembly on the main thread instead of a worker thread. I'm not even sure what that means, but it's breaking things for me downstream now.

[rexdavinci]

If you are using react, you need to use web worker. You can use https://github.com/rexdavinci/browser-solidity-compiler to get this done. It comes with typescript support as well.