30 lines
800 B
JavaScript
30 lines
800 B
JavaScript
'use strict';
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var errors = require('../errors');
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var _ = require('lodash');
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module.exports = {
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checkState: function(condition, message) {
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if (!condition) {
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throw new errors.InvalidState(message);
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}
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},
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checkArgument: function(condition, argumentName, message) {
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if (!condition) {
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throw new errors.InvalidArgument(argumentName, message);
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}
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},
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checkArgumentType: function(argument, type, argumentName) {
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argumentName = argumentName || '(unknown name)';
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if (_.isString(type)) {
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if (typeof argument !== type) {
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throw new errors.InvalidArgumentType(argument, type, argumentName);
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}
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} else {
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if (!(argument instanceof type)) {
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throw new errors.InvalidArgumentType(argument, type.name, argumentName);
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}
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}
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}
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};
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