Rename TakesArg to RequiresVal

opts/bool.go

@@ -54,8 +54,8 @@ func (o *BoolOption) Parse(raw string) error {
 	return nil
 }
 
-// TakesArg implements Option.
-func (*BoolOption) TakesArg() bool {
+// RequiresVal implements Option.
+func (*BoolOption) RequiresVal() bool {
 	return false
 }
 

opts/float.go

@@ -51,8 +51,8 @@ func (o *FloatOption) Parse(raw string) error {
 	return nil
 }
 
-// TakesArg implements Option.
-func (*FloatOption) TakesArg() bool {
+// RequiresVal implements Option.
+func (*FloatOption) RequiresVal() bool {
 	return true
 }
 

opts/int.go

@@ -51,8 +51,8 @@ func (o *IntOption) Parse(raw string) error {
 	return nil
 }
 
-// TakesArg implements Option.
-func (*IntOption) TakesArg() bool {
+// RequiresVal implements Option.
+func (*IntOption) RequiresVal() bool {
 	return true
 }
 

opts/option.go

@@ -7,7 +7,7 @@ type Option interface {
 	ShortName() string
 	Description() string
 	Parse(raw string) error
-	TakesArg() bool
+	RequiresVal() bool
 }
 
 func Names(o Option) string {

opts/parser.go

@@ -109,7 +109,7 @@ func (p *Parser) parseLongOption(longName string) error {
 		return nil // Ignore unknown option. Continue parsing.
 	}
 
-	if value == "" && opt.TakesArg() {
+	if value == "" && opt.RequiresVal() {
 		var ok bool
 		value, ok = p.value()
 		if !ok {
@@ -137,7 +137,7 @@ func (p *Parser) parseShortOption(shortNames string) error {
 			return nil // Ignore unknown option. Continue parsing.
 		}
 
-		if !valOk && opt.TakesArg() {
+		if !valOk && opt.RequiresVal() {
 			return fmt.Errorf("%w: %s", ErrOptionRequiresValue, "-"+shortNames)
 		}
 
@@ -158,7 +158,7 @@ func (p *Parser) parseShortOption(shortNames string) error {
 				continue // Ignore unknown option. Continue parsing.
 			}
 
-			if opt.TakesArg() {
+			if opt.RequiresVal() {
 				if j > 0 {
 					return fmt.Errorf("%w: %s", ErrCannotChainOption, "-"+string(shortName))
 				}

opts/string.go

@@ -43,8 +43,8 @@ func (o *StringOption) Parse(raw string) error {
 	return nil
 }
 
-// TakesArg implements Option.
-func (*StringOption) TakesArg() bool {
+// RequiresVal implements Option.
+func (*StringOption) RequiresVal() bool {
 	return true
 }