inversify
Version:
A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.
101 lines (100 loc) • 3.85 kB
JavaScript
import * as ERROR_MSGS from '../constants/error_msgs';
function getServiceIdentifierAsString(serviceIdentifier) {
if (typeof serviceIdentifier === 'function') {
var _serviceIdentifier = serviceIdentifier;
return _serviceIdentifier.name;
}
else if (typeof serviceIdentifier === 'symbol') {
return serviceIdentifier.toString();
}
else {
var _serviceIdentifier = serviceIdentifier;
return _serviceIdentifier;
}
}
function listRegisteredBindingsForServiceIdentifier(container, serviceIdentifier, getBindings) {
var registeredBindingsList = '';
var registeredBindings = getBindings(container, serviceIdentifier);
if (registeredBindings.length !== 0) {
registeredBindingsList = '\nRegistered bindings:';
registeredBindings.forEach(function (binding) {
var name = 'Object';
if (binding.implementationType !== null) {
name = getFunctionName(binding.implementationType);
}
registeredBindingsList = registeredBindingsList + "\n " + name;
if (binding.constraint.metaData) {
registeredBindingsList = registeredBindingsList + " - " + binding.constraint.metaData;
}
});
}
return registeredBindingsList;
}
function alreadyDependencyChain(request, serviceIdentifier) {
if (request.parentRequest === null) {
return false;
}
else if (request.parentRequest.serviceIdentifier === serviceIdentifier) {
return true;
}
else {
return alreadyDependencyChain(request.parentRequest, serviceIdentifier);
}
}
function dependencyChainToString(request) {
function _createStringArr(req, result) {
if (result === void 0) { result = []; }
var serviceIdentifier = getServiceIdentifierAsString(req.serviceIdentifier);
result.push(serviceIdentifier);
if (req.parentRequest !== null) {
return _createStringArr(req.parentRequest, result);
}
return result;
}
var stringArr = _createStringArr(request);
return stringArr.reverse().join(' --> ');
}
function circularDependencyToException(request) {
request.childRequests.forEach(function (childRequest) {
if (alreadyDependencyChain(childRequest, childRequest.serviceIdentifier)) {
var services = dependencyChainToString(childRequest);
throw new Error(ERROR_MSGS.CIRCULAR_DEPENDENCY + " " + services);
}
else {
circularDependencyToException(childRequest);
}
});
}
function listMetadataForTarget(serviceIdentifierString, target) {
if (target.isTagged() || target.isNamed()) {
var m_1 = '';
var namedTag = target.getNamedTag();
var otherTags = target.getCustomTags();
if (namedTag !== null) {
m_1 += namedTag.toString() + '\n';
}
if (otherTags !== null) {
otherTags.forEach(function (tag) {
m_1 += tag.toString() + '\n';
});
}
return " " + serviceIdentifierString + "\n " + serviceIdentifierString + " - " + m_1;
}
else {
return " " + serviceIdentifierString;
}
}
function getFunctionName(func) {
if (func.name) {
return func.name;
}
else {
var name_1 = func.toString();
var match = name_1.match(/^function\s*([^\s(]+)/);
return match ? match[1] : "Anonymous function: " + name_1;
}
}
function getSymbolDescription(symbol) {
return symbol.toString().slice(7, -1);
}
export { getFunctionName, getServiceIdentifierAsString, listRegisteredBindingsForServiceIdentifier, listMetadataForTarget, circularDependencyToException, getSymbolDescription };