guard_claws
A DRY guard clause library designed to provide simple, readable guard clauses. Inspired by this question on StackOverflow.
Example
NotNullNotBlank
var test = string.Empty;
Claws.NotNullNotBlank(() => test);
Will throw:
GuardClaws.Exceptions.VariableMustNotBeBlankException was unhandled
Message="Variable must not be blank./n/nDelinquent: test"
Source="guard_claws"
NameOfDelinquent="test"
Performance
guard_claws uses code from the Lokad Shared Libraries to gain access to the name of the parameter without having to resort to expressions and the runtime costs compiling them incurs.
License
Copyright (c) 2009, Brendan Erwin and contributors. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- The names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY Brendan Erwin and contributors ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Brendan Erwin or contributors BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Some Portions of this code are Copyright (c) Lokad 2009 Company: http://www.lokad.com and are also licensed under the New BSD License.