status-go/vendor/go.uber.org/dig/group.go

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// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package dig
import (
"fmt"
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"io"
"strings"
)
const (
_groupTag = "group"
)
type group struct {
Name string
Flatten bool
Soft bool
}
type errInvalidGroupOption struct{ Option string }
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var _ digError = errInvalidGroupOption{}
func (e errInvalidGroupOption) Error() string { return fmt.Sprint(e) }
func (e errInvalidGroupOption) writeMessage(w io.Writer, v string) {
fmt.Fprintf(w, "invalid option %q", e.Option)
}
func (e errInvalidGroupOption) Format(w fmt.State, c rune) {
formatError(e, w, c)
}
func parseGroupString(s string) (group, error) {
components := strings.Split(s, ",")
g := group{Name: components[0]}
for _, c := range components[1:] {
switch c {
case "flatten":
g.Flatten = true
case "soft":
g.Soft = true
default:
return g, errInvalidGroupOption{Option: c}
}
}
return g, nil
}