first commit

internal/codegen/methodfilter.go

@@ -0,0 +1,28 @@
+package codegen
+
+// MethodFilter is a filter for methods to be generated.
+type MethodFilter struct {
+	filters []string
+}
+
+// NewMethodFilter creates a new MethodFilter.
+func NewMethodFilter(filters []string) *MethodFilter {
+	return &MethodFilter{filters}
+}
+
+// Filter returns true if the method matches one of the filters.
+// In case no filter matches the method, the method is allowed.
+func (md *MethodFilter) Filter(method string) bool {
+	for _, filter := range md.filters {
+		result := true
+		if filter[0] == '!' {
+			filter = filter[1:]
+			result = false
+		}
+
+		if filter == "*" || filter == method {
+			return result
+		}
+	}
+	return true // everything matches by default
+}