Code optimization

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

@@ -0,0 +1,69 @@
+package param
+
+import (
+	"fmt"
+	"strings"
+)
+
+//MethodParam keeps param information to be auto passed to controller methods
+type MethodParam struct {
+	name         string
+	in           paramType
+	required     bool
+	defaultValue string
+}
+
+type paramType byte
+
+const (
+	param paramType = iota
+	path
+	body
+	header
+)
+
+//New creates a new MethodParam with name and specific options
+func New(name string, opts ...MethodParamOption) *MethodParam {
+	return newParam(name, nil, opts)
+}
+
+func newParam(name string, parser paramParser, opts []MethodParamOption) (param *MethodParam) {
+	param = &MethodParam{name: name}
+	for _, option := range opts {
+		option(param)
+	}
+	return
+}
+
+//Make creates an array of MethodParmas or an empty array
+func Make(list ...*MethodParam) []*MethodParam {
+	if len(list) > 0 {
+		return list
+	}
+	return nil
+}
+
+func (mp *MethodParam) String() string {
+	options := []string{}
+	result := "param.New(\"" + mp.name + "\""
+	if mp.required {
+		options = append(options, "param.IsRequired")
+	}
+	switch mp.in {
+	case path:
+		options = append(options, "param.InPath")
+	case body:
+		options = append(options, "param.InBody")
+	case header:
+		options = append(options, "param.InHeader")
+	}
+	if mp.defaultValue != "" {
+		options = append(options, fmt.Sprintf(`param.Default("%s")`, mp.defaultValue))
+	}
+	if len(options) > 0 {
+		result += ", "
+	}
+	result += strings.Join(options, ", ")
+	result += ")"
+	return result
+}