From 026b3f993ef3d26c987f8568c822f2eceb0ab179 Mon Sep 17 00:00:00 2001
From: Johannes Loher <johannes.loher@fg4f.de>
Date: Fri, 27 Oct 2017 15:13:02 +0200
Subject: [PATCH] Automatically generate methods for checking if a user has
certain privileges. Once static foreach is supported by ldc, this can be done
even more elegant without the use of a helper function.
---
source/calendarwebapp/authenticator.d | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/source/calendarwebapp/authenticator.d b/source/calendarwebapp/authenticator.d
index f56643b..6607f1f 100644
--- a/source/calendarwebapp/authenticator.d
+++ b/source/calendarwebapp/authenticator.d
@@ -54,13 +54,26 @@ struct AuthInfo
string passwordHash;
Role role;
- bool isUser() const pure @safe nothrow
+ mixin(generateAuthMethods);
+
+private:
+ static string generateAuthMethods() pure @safe
{
- return role == Role.User;
+ import std.conv : to;
+ import std.format : format;
+ import std.traits : EnumMembers;
+
+ string ret;
+ foreach (member; EnumMembers!Role)
+ {
+ ret ~= q{
+ bool is%s() const pure @safe nothrow
+ {
+ return role == Role.%s;
+ }
+ }.format(member.to!string, member.to!string);
+ }
+ return ret;
}
- bool isAdmin() const pure @safe nothrow
- {
- return role == Role.Admin;
- }
}