Code optimization

vender/github.com/astaxie/beego/context/param/options.go

@@ -0,0 +1,37 @@
+package param
+
+import (
+	"fmt"
+)
+
+// MethodParamOption defines a func which apply options on a MethodParam
+type MethodParamOption func(*MethodParam)
+
+// IsRequired indicates that this param is required and can not be omitted from the http request
+var IsRequired MethodParamOption = func(p *MethodParam) {
+	p.required = true
+}
+
+// InHeader indicates that this param is passed via an http header
+var InHeader MethodParamOption = func(p *MethodParam) {
+	p.in = header
+}
+
+// InPath indicates that this param is part of the URL path
+var InPath MethodParamOption = func(p *MethodParam) {
+	p.in = path
+}
+
+// InBody indicates that this param is passed as an http request body
+var InBody MethodParamOption = func(p *MethodParam) {
+	p.in = body
+}
+
+// Default provides a default value for the http param
+func Default(defaultValue interface{}) MethodParamOption {
+	return func(p *MethodParam) {
+		if defaultValue != nil {
+			p.defaultValue = fmt.Sprint(defaultValue)
+		}
+	}
+}