From 38b31c65f8d4b85df739905d063f431cfa8b43dc Mon Sep 17 00:00:00 2001
From: Matt Bell <mappum@gmail.com>
Date: Mon, 10 Nov 2014 16:59:07 -0800
Subject: [PATCH] commands: Added Option helper constructors
---
commands/option.go | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/commands/option.go b/commands/option.go
index f068ec228..8f11ace49 100644
--- a/commands/option.go
+++ b/commands/option.go
@@ -18,11 +18,43 @@ type Option struct {
Type reflect.Kind // value must be this type
Description string // a short string to describe this option
- // TODO: add more features(?):
+ // MAYBE_TODO: add more features(?):
//Default interface{} // the default value (ignored if `Required` is true)
//Required bool // whether or not the option must be provided
}
+// constructor helper functions
+func NewOption(kind reflect.Kind, names ...string) Option {
+ if len(names) < 2 {
+ panic("Options require at least two string values (name and description)")
+ }
+
+ desc := names[len(names)-1]
+ names = names[:len(names)-2]
+
+ return Option{
+ Names: names,
+ Type: kind,
+ Description: desc,
+ }
+}
+
+func BoolOption(names ...string) Option {
+ return NewOption(Bool, names...)
+}
+func IntOption(names ...string) Option {
+ return NewOption(Int, names...)
+}
+func UintOption(names ...string) Option {
+ return NewOption(Uint, names...)
+}
+func FloatOption(names ...string) Option {
+ return NewOption(Float, names...)
+}
+func StringOption(names ...string) Option {
+ return NewOption(String, names...)
+}
+
// Flag names
const (
EncShort = "enc"
--
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