435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
36 lines
1.1 KiB
Go
36 lines
1.1 KiB
Go
// Copyright 2018, The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE.md file.
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package cmpopts
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import (
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"github.com/google/go-cmp/cmp"
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)
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type xformFilter struct{ xform cmp.Option }
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func (xf xformFilter) filter(p cmp.Path) bool {
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for _, ps := range p {
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if t, ok := ps.(cmp.Transform); ok && t.Option() == xf.xform {
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return false
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}
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}
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return true
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}
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// AcyclicTransformer returns a Transformer with a filter applied that ensures
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// that the transformer cannot be recursively applied upon its own output.
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//
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// An example use case is a transformer that splits a string by lines:
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// AcyclicTransformer("SplitLines", func(s string) []string{
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// return strings.Split(s, "\n")
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// })
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//
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// Had this been an unfiltered Transformer instead, this would result in an
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// infinite cycle converting a string to []string to [][]string and so on.
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func AcyclicTransformer(name string, xformFunc interface{}) cmp.Option {
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xf := xformFilter{cmp.Transformer(name, xformFunc)}
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return cmp.FilterPath(xf.filter, xf.xform)
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}
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