From 55104ac430bed00caf6b5a9fb9c0861ca2eecb68 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Tue, 9 Feb 2021 19:30:30 +0900
Subject: [PATCH] [util] Allow "any type" results for cexpr

Setting the result type cexpr_exprval tells cexpr to simply return whoe
exprval object rather than the referenced value, thus allowing the
caller to check the type when the expression is context sensitive.
---
 libs/util/cexpr-parse.y | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libs/util/cexpr-parse.y b/libs/util/cexpr-parse.y
index 8ccf0b20b..ad734def7 100644
--- a/libs/util/cexpr-parse.y
+++ b/libs/util/cexpr-parse.y
@@ -191,6 +191,10 @@ assign_expr (exprval_t *dst, const exprval_t *src, exprctx_t *context)
 	if (!src) {
 		return;
 	}
+	if (dst->type == &cexpr_exprval) {
+		*(exprval_t **) dst->value = (exprval_t *) src;
+		return;
+	}
 	binop = cexpr_find_cast (dst->type, src->type);
 	if (binop && binop->op) {
 		binop->func (dst, src, dst, context);