| commit | e1f03df4dcb7b99f29424fd98901b73dc1102937 | [log] [tgz] |
|---|---|---|
| author | Joe Tsai <joetsai@digital-static.net> | Mon Dec 16 08:56:48 2019 -0800 |
| committer | GitHub <noreply@github.com> | Mon Dec 16 08:56:48 2019 -0800 |
| tree | 8fa08cb4eb19be7af62a3bc9ae37452687f65ae8 | |
| parent | 776445f29feeb6041579ae3df3c5615aba0fa128 [diff] |
Add Exporter option (#176)
Add an Exporter option that accepts a function to determine
which struct types to permit access to unexported fields.
Treat this as a first-class option and implement AllowUnexported
in terms of the new Exporter option.
The new Exporter option:
* Better matches the existing style of top-level options
both by name (e.g., Comparer, Transformer, and Reporter)
and by API style (all accept a function).
* Is more flexible as it enables users to functionally
implement AllowAllUnexported by simply doing:
Exporter(func(reflect.Type) bool { return true })
Fixes #40 
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 explicitly 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