[vala/0.46] parser: Handle incomplete expression statements

[Rico Tzschichholz <ricotz src gnome org>]

commit db728aa61985119299d20dce4f4c5f5232345f8c
Author: Princeton Ferro <princetonferro gmail com>
Date:   Thu Apr 9 21:15:45 2020 +0200

    parser: Handle incomplete expression statements
    
    Incomplete expression statements are parsed as expression statements
    now, rather than local variable declarations. This primarily affects
    incomplete member access expressions at the end of blocks.

 vala/valaparser.vala | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)
---
diff --git a/vala/valaparser.vala b/vala/valaparser.vala
index 16f24058e..fe924ce31 100644
--- a/vala/valaparser.vala
+++ b/vala/valaparser.vala
@@ -1627,7 +1627,19 @@ public class Vala.Parser : CodeVisitor {
                var begin = get_location ();
 
                // decide between declaration and expression statement
-               skip_type ();
+               try {
+                       skip_type ();
+               } catch (ParseError e) {
+                       prev ();
+                       var token = current ();
+                       next ();
+                       if (token == TokenType.DOT || token == TokenType.DOUBLE_COLON) {
+                               rollback (begin);
+                               return true;
+                       } else {
+                               throw e;
+                       }
+               }
                switch (current ()) {
                // invocation expression
                case TokenType.OPEN_PARENS: