forked from TrueCloudLab/neoneo-go
ca476cbf8a
Parsing gas from float value is not always a right idea as a transform from float is not 1-to-1. This commit implements Fixed8Flag which parses Fixed8 value from string.
75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
package flags
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import (
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"flag"
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"strings"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/urfave/cli"
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)
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// Fixed8 is a wrapper for Uint160 with flag.Value methods.
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type Fixed8 struct {
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Value util.Fixed8
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}
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// Fixed8Flag is a flag with type string.
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type Fixed8Flag struct {
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Name string
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Usage string
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Value Fixed8
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}
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var (
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_ flag.Value = (*Fixed8)(nil)
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_ cli.Flag = Fixed8Flag{}
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)
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// String implements fmt.Stringer interface.
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func (a Fixed8) String() string {
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return a.Value.String()
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}
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// Set implements flag.Value interface.
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func (a *Fixed8) Set(s string) error {
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f, err := util.Fixed8FromString(s)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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a.Value = f
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return nil
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}
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// Fixed8 casts address to util.Fixed8.
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func (a *Fixed8) Fixed8() util.Fixed8 {
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return a.Value
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}
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// String returns a readable representation of this value
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// (for usage defaults).
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func (f Fixed8Flag) String() string {
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var names []string
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eachName(f.Name, func(name string) {
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names = append(names, getNameHelp(name))
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})
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return strings.Join(names, ", ") + "\t" + f.Usage
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}
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// GetName returns the name of the flag.
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func (f Fixed8Flag) GetName() string {
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return f.Name
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}
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// Apply populates the flag given the flag set and environment
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// Ignores errors.
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func (f Fixed8Flag) Apply(set *flag.FlagSet) {
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eachName(f.Name, func(name string) {
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set.Var(&f.Value, name, f.Usage)
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})
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}
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// Fixed8FromContext returns parsed util.Fixed8 value provided flag name.
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func Fixed8FromContext(ctx *cli.Context, name string) util.Fixed8 {
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return ctx.Generic(name).(*Fixed8Flag).Value.Fixed8()
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}
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