All files / lib/internal/util inspector.js

100% Statements 76/76
83.33% Branches 10/12
100% Functions 5/5
100% Lines 76/76

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 7720x 20x 20x 20x 20x 20x 20x 20x 20x 20x 20x 898x 898x 898x 898x 898x 898x 898x 898x 898x 898x 898x 898x 20x 20x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 20x 20x 580x 580x 580x 13340x 13340x 13340x 13340x 11020x 11020x 11020x 11020x 11020x 11020x 11020x 11020x 11020x 13340x 2320x 2320x 2320x 13340x 580x 20x 20x 20x 20x 20x 20x 20x 20x 118x 20x 20x 580x 580x 20x  
'use strict';
 
const {
  ArrayPrototypeConcat,
  FunctionPrototypeBind,
  ObjectDefineProperty,
  ObjectKeys,
  ObjectPrototypeHasOwnProperty,
} = primordials;
 
let session;
function sendInspectorCommand(cb, onError) {
  const { hasInspector } = internalBinding('config');
  if (!hasInspector) return onError();
  const inspector = require('inspector');
  if (session === undefined) session = new inspector.Session();
  session.connect();
  try {
    return cb(session);
  } finally {
    session.disconnect();
  }
}
 
// Create a special require function for the inspector command line API
function installConsoleExtensions(commandLineApi) {
  if (commandLineApi.require) { return; }
  const { tryGetCwd } = require('internal/process/execution');
  const CJSModule = require('internal/modules/cjs/loader').Module;
  const { makeRequireFunction } = require('internal/modules/cjs/helpers');
  const consoleAPIModule = new CJSModule('<inspector console>');
  const cwd = tryGetCwd();
  consoleAPIModule.paths = ArrayPrototypeConcat(
    CJSModule._nodeModulePaths(cwd),
    CJSModule.globalPaths
  );
  commandLineApi.require = makeRequireFunction(consoleAPIModule);
}
 
// Wrap a console implemented by Node.js with features from the VM inspector
function wrapConsole(consoleFromNode, consoleFromVM) {
  const { consoleCall } = internalBinding('inspector');
  for (const key of ObjectKeys(consoleFromVM)) {
    // If global console has the same method as inspector console,
    // then wrap these two methods into one. Native wrapper will preserve
    // the original stack.
    if (ObjectPrototypeHasOwnProperty(consoleFromNode, key)) {
      consoleFromNode[key] = FunctionPrototypeBind(
        consoleCall,
        consoleFromNode,
        consoleFromVM[key],
        consoleFromNode[key]
      );
      ObjectDefineProperty(consoleFromNode[key], 'name', {
        value: key
      });
    } else {
      // Add additional console APIs from the inspector
      consoleFromNode[key] = consoleFromVM[key];
    }
  }
}
 
// Stores the console from VM, should be set during bootstrap.
let consoleFromVM;
module.exports = {
  installConsoleExtensions,
  sendInspectorCommand,
  wrapConsole,
  get consoleFromVM() {
    return consoleFromVM;
  },
  set consoleFromVM(val) {
    consoleFromVM = val;
  }
};