[nft PATCH v3 2/3] parser_json: Parse into symbol range expression if possible

[Phil Sutter <phil@nwl.cc>]

Apply the bison parser changes in commit 347039f64509e ("src: add symbol
range expression to further compact intervals") to JSON parser as well.

Fixes: 347039f64509e ("src: add symbol range expression to further compact intervals")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 src/parser_json.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/parser_json.c b/src/parser_json.c
index bd865de59007a..120c814bc7a9b 100644
--- a/src/parser_json.c
+++ b/src/parser_json.c
@@ -1353,7 +1353,7 @@ static struct expr *json_parse_prefix_expr(struct json_ctx *ctx,
 static struct expr *json_parse_range_expr(struct json_ctx *ctx,
 					  const char *type, json_t *root)
 {
-	struct expr *expr_low, *expr_high;
+	struct expr *expr_low, *expr_high, *tmp;
 	json_t *low, *high;
 
 	if (json_unpack_err(ctx, root, "[o, o!]", &low, &high))
@@ -1370,6 +1370,16 @@ static struct expr *json_parse_range_expr(struct json_ctx *ctx,
 		expr_free(expr_low);
 		return NULL;
 	}
+	if (is_symbol_value_expr(expr_low) && is_symbol_value_expr(expr_high)) {
+		tmp = symbol_range_expr_alloc(int_loc,
+					      SYMBOL_VALUE,
+					      expr_low->scope,
+					      expr_low->identifier,
+					      expr_high->identifier);
+		expr_free(expr_low);
+		expr_free(expr_high);
+		return tmp;
+	}
 	return range_expr_alloc(int_loc, expr_low, expr_high);
 }
 
-- 
2.49.0