Merge pull request #57 from cporter/feature/knowable-message-ids

Feature request: make the tag ids of message members knowable
msoucy · Oct 20, 2015 · 0ce8f89 · 0ce8f89
2 parents 99eaf68 + 57c3631
commit 0ce8f89
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/import/dproto/buffers.d b/import/dproto/buffers.d
@@ -29,6 +29,7 @@ import dproto.exception;
  *  	defaultValue = The default value for the internal storage
  */
 struct OptionalBuffer(ulong id, string TypeString, RealType, bool isDeprecated=false, alias defaultValue=RealType.init) {
+	public enum TagID = id;
 	private {
 		alias ValueType = RealType;
 		static if(is(ValueType == enum)) {
@@ -163,6 +164,7 @@ struct OptionalBuffer(ulong id, string TypeString, RealType, bool isDeprecated=f
  *  	isDeprecated = Deprecates the accessors if true
  */
 struct RequiredBuffer(ulong id, string TypeString, RealType, bool isDeprecated=false) {
+	public enum TagID = id;
 	private {
 		alias ValueType = RealType;
 		static if(is(ValueType == enum)) {
@@ -266,6 +268,7 @@ struct RequiredBuffer(ulong id, string TypeString, RealType, bool isDeprecated=f
  *  	packed       = The default value for the internal storage
  */
 struct RepeatedBuffer(ulong id, string TypeString, RealType, bool isDeprecated=false, bool packed=false) {
+	public enum TagID = id;
 	private {
 		alias ValueType = RealType;
 		static if(is(ValueType == enum)) {
@@ -420,6 +423,15 @@ struct RepeatedBuffer(ulong id, string TypeString, RealType, bool isDeprecated=f
 	}
 }
 
+unittest {
+	alias optional_string = OptionalBuffer!(1, "string", BuffType!"string", false, (BuffType!"string").init);
+	assert(optional_string.TagID == 1);
+	alias required_string = RequiredBuffer!(2, "string", BuffType!"string");
+	assert(required_string.TagID == 2);
+	alias repeated_string = RepeatedBuffer!(3, "string", BuffType!"string");
+	assert(repeated_string.TagID == 3);
+}
+
 private struct CntRange
 {
 @nogc: