commit | 3fe02156777c9eff14a88826cf3aa495b5db3544 | [log] [tgz] |
---|---|---|
author | Joe Tsai <joetsai@digital-static.net> | Wed Aug 02 16:32:40 2017 -0700 |
committer | GitHub <noreply@github.com> | Wed Aug 02 16:32:40 2017 -0700 |
tree | 5ce399040f003cb90006678f98f9201d211ec56e | |
parent | 48a041be5648cc13e0c53082193ed105a0aa99e6 [diff] |
Add cmp/internal/function package (#35) Unify the common logic for identifying the type of function. This logic is helpful since Go lacks generics, so it is hard to query whether a function is of the signature: func(T, T) bool
This package is intended to be a more powerful and safer alternative to reflect.DeepEqual
for comparing whether two values are semantically equal.
The primary features of cmp
are:
When the default behavior of equality does not suit the needs of the test, custom equality functions can override the equality operation. For example, an equality function may report floats as equal so long as they are within some tolerance of each other.
Types that have an Equal
method may use that method to determine equality. This allows package authors to determine the equality operation for the types that they define.
If no custom equality functions are used and no Equal
method is defined, equality is determined by recursively comparing the primitive kinds on both values, much like reflect.DeepEqual
. Unlike reflect.DeepEqual
, unexported fields are not compared by default; they result in panics unless suppressed by using an Ignore
option (see cmpopts.IgnoreUnexported
) or explictly compared using the AllowUnexported
option.
See the GoDoc documentation for more information.
This is not an official Google product.
go get -u github.com/google/go-cmp/cmp
BSD - See LICENSE file