Vala Devs,
I originally attached this patch to:
https://bugzilla.gnome.org/show_bug.cgi?id=620133
Upon further review though I'm not really sure if the patch and the bug
report are related. Given that, I've decided to re-post the patch here. I
think it's still worth committing even if it doesn't solve the
aforementioned bug.
Steven N. Oliver
From f7dd5161bc35306b2ff8ad12e4d8a5e16f32c773 Mon Sep 17 00:00:00 2001
From: Steven Oliver <oliver.ste...@gmail.com>
Date: Mon, 9 Sep 2013 17:17:22 -0400
Subject: [PATCH] [Genie] Add coalescing function
---
vala/valagenieparser.vala | 11 +++++++++++
vala/valagenietokentype.vala | 1 +
2 files changed, 12 insertions(+)
diff --git a/vala/valagenieparser.vala b/vala/valagenieparser.vala
index f479905..ad84415 100644
--- a/vala/valagenieparser.vala
+++ b/vala/valagenieparser.vala
@@ -1520,6 +1520,17 @@ public class Vala.Genie.Parser : CodeVisitor {
return left;
}
+ Expression parse_coalescing_expression () throws ParseError {
+ var begin = get_location ();
+ var left = parse_conditional_or_expression ();
+ if (accept (TokenType.OP_COALESCING)) {
+ var right = parse_coalescing_expression ();
+ return new BinaryExpression (BinaryOperator.COALESCE,
left, right, get_src (begin));
+ } else {
+ return left;
+ }
+ }
+
Expression parse_conditional_or_expression () throws ParseError {
var begin = get_location ();
var left = parse_conditional_and_expression ();
diff --git a/vala/valagenietokentype.vala b/vala/valagenietokentype.vala
index 920a96a..df78e22 100644
--- a/vala/valagenietokentype.vala
+++ b/vala/valagenietokentype.vala
@@ -107,6 +107,7 @@ public enum Vala.Genie.TokenType {
OF,
OUT,
OP_AND,
+ OP_COALESCING,
OP_DEC,
OP_EQ,
OP_GE,
--
1.8.3.1
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