move under context

context/param/options.go

@@ -0,0 +1,31 @@
+package param
+
+import (
+	"fmt"
+)
+
+type MethodParamOption func(*MethodParam)
+
+var IsRequired MethodParamOption = func(p *MethodParam) {
+	p.required = true
+}
+
+var InHeader MethodParamOption = func(p *MethodParam) {
+	p.location = header
+}
+
+var InPath MethodParamOption = func(p *MethodParam) {
+	p.location = path
+}
+
+var InBody MethodParamOption = func(p *MethodParam) {
+	p.location = body
+}
+
+func Default(defValue interface{}) MethodParamOption {
+	return func(p *MethodParam) {
+		if defValue != nil {
+			p.defValue = fmt.Sprint(defValue)
+		}
+	}
+}