From 984aa9a4cfe89d805f57010bff91e63710a313c7 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Tue, 20 Nov 2012 17:12:16 +0900
Subject: [PATCH] Support entity.field = structvar2 = structvar1;

The structvar2 = structvar1 is implemented as a move expresion, which
address_expr didn't like. Return the address of the source. For indirect
move expressions, this is just the source expression itself.
---
 tools/qfcc/source/expr.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/qfcc/source/expr.c b/tools/qfcc/source/expr.c
index 4b6f0e40f..3433e95c6 100644
--- a/tools/qfcc/source/expr.c
+++ b/tools/qfcc/source/expr.c
@@ -2189,6 +2189,16 @@ address_expr (expr_t *e1, expr_t *e2, type_t *t)
 				e->e.expr.type = pointer_type (e->e.expr.type);
 				break;
 			}
+			if (e1->e.expr.op == 'm') {
+				// direct move, so obtain the address of the source
+				e = address_expr (e1->e.expr.e2, 0, t);
+				break;
+			}
+			if (e1->e.expr.op == 'M') {
+				// indirect move, so we already have the address of the source
+				e = e1->e.expr.e2;
+				break;
+			}
 			return error (e1, "invalid type for unary &");
 		case ex_uexpr:
 			if (e1->e.expr.op == '.') {