forked from cerc-io/ipld-eth-server
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
// Copyright (c) 2018 Arista Networks, Inc.
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// Use of this source code is governed by the Apache License 2.0
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// that can be found in the COPYING file.
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package key
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import (
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"bytes"
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"fmt"
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)
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// Path represents a path decomposed into elements where each
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// element is a Key. A Path can be interpreted as either
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// absolute or relative depending on how it is used.
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type Path []Key
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// String returns the Path as an absolute path string.
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func (p Path) String() string {
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if len(p) == 0 {
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return "/"
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}
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var buf bytes.Buffer
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for _, element := range p {
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buf.WriteByte('/')
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buf.WriteString(element.String())
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}
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return buf.String()
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}
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// MarshalJSON marshals a Path to JSON.
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func (p Path) MarshalJSON() ([]byte, error) {
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return []byte(fmt.Sprintf(`{"_path":%q}`, p)), nil
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}
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// Equal returns whether a Path is equal to @other.
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func (p Path) Equal(other interface{}) bool {
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o, ok := other.(Path)
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return ok && pathEqual(p, o)
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}
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func pathEqual(a, b Path) bool {
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if len(a) != len(b) {
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return false
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}
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for i := range a {
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if !a[i].Equal(b[i]) {
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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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