timepiece/node_modules/undertaker/lib/helpers/validateRegistry.js

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2024-05-14 14:54:12 +00:00
'use strict';
var assert = require('assert');
function isFunction(fn) {
return typeof fn === 'function';
}
function isConstructor(registry) {
if (!(registry && registry.prototype)) {
return false;
}
var hasProtoGet = isFunction(registry.prototype.get);
var hasProtoSet = isFunction(registry.prototype.set);
var hasProtoInit = isFunction(registry.prototype.init);
var hasProtoTasks = isFunction(registry.prototype.tasks);
if (hasProtoGet || hasProtoSet || hasProtoInit || hasProtoTasks) {
return true;
}
return false;
}
function validateRegistry(registry) {
try {
assert(isFunction(registry.get), 'Custom registry must have `get` function');
assert(isFunction(registry.set), 'Custom registry must have `set` function');
assert(isFunction(registry.init), 'Custom registry must have `init` function');
assert(isFunction(registry.tasks), 'Custom registry must have `tasks` function');
} catch (err) {
if (isConstructor(registry)) {
assert(false, 'Custom registries must be instantiated, but it looks like you passed a constructor');
} else {
throw err;
}
}
}
module.exports = validateRegistry;