Support "emit" for explicit signal emission

If "foo" is a signal then "foo.emit (...);" is allowed now additionally to
"foo (...);". This is required to emit dynamic signals.

1 files changed, 13 insertions, 0 deletions

diff --git a/vala/valamemberaccess.vala b/vala/valamemberaccess.vala
index c8b3b267b..39a7af72c 100644
--- a/vala/valamemberaccess.vala
+++ b/vala/valamemberaccess.vala
@@ -390,6 +390,12 @@ public class Vala.MemberAccess : Expression {
 				}
 			}
 
+			if (inner.value_type is SignalType && member_name == "emit") {
+				// transform foo.sig.emit() to foo.sig()
+				parent_node.replace_expression (this, inner);
+				return true;
+			}
+
 			if (inner is MemberAccess) {
 				unowned MemberAccess ma = (MemberAccess) inner;
 				if (ma.prototype_access) {
@@ -499,6 +505,13 @@ public class Vala.MemberAccess : Expression {
 						s.access = SymbolAccessibility.PUBLIC;
 						dynamic_object_type.type_symbol.scope.add (null, s);
 						symbol_reference = s;
+					} else if (ma.member_name == "emit") {
+						// dynamic signal
+						var s = new DynamicSignal (inner.value_type, member_name, new VoidType (), source_reference);
+						s.access = SymbolAccessibility.PUBLIC;
+						s.add_parameter (new Parameter.with_ellipsis ());
+						dynamic_object_type.type_symbol.scope.add (null, s);
+						symbol_reference = s;
 					} else if (ma.member_name == "disconnect") {
 						error = true;
 						Report.error (ma.source_reference, "Use SignalHandler.disconnect() to disconnect from dynamic signal");