Function extensionsFromExprWithPrefix

http/codegen/openapi/extensions.go:28–56

extensionsFromExprWithPrefix generates openapi extensions from the given meta expression with keys starting the given prefix.

(mdata expr.MetaExpr, prefix string)

// extensionsFromExprWithPrefix generates openapi extensions from
// the given meta expression with keys starting the given prefix.
func extensionsFromExprWithPrefix(mdata expr.MetaExpr, prefix string) map[string]any {
	if !strings.HasSuffix(prefix, ":") {
		prefix += ":"
	}
	extensions := make(map[string]any)
	for key, value := range mdata {
		if !strings.HasPrefix(key, prefix) {
			continue
		}
		name := key[len(prefix):]
		if strings.Contains(name, ":") {
			continue
		}
		if !strings.HasPrefix(name, "x-") {
			continue
		}
		val := value[0]
		ival := any(val)
		if err := json.Unmarshal([]byte(val), &ival); err != nil {
			extensions[name] = val
			continue
		}
		extensions[name] = ival
	}
	if len(extensions) == 0 {
		return nil
	}
	return extensions
}