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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;
}
};
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