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-rw-r--r--src/evaluate.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/evaluate.c b/src/evaluate.c
index 27cee989..4ca14842 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -1759,6 +1759,21 @@ static int stmt_evaluate_arg(struct eval_ctx *ctx, struct stmt *stmt,
"datatype mismatch: expected %s, "
"expression has type %s",
dtype->desc, (*expr)->dtype->desc);
+
+ /* we are setting a value, we can't use a set */
+ switch ((*expr)->ops->type) {
+ case EXPR_SET:
+ return stmt_binary_error(ctx, *expr, stmt,
+ "you cannot use a set here, unknown "
+ "value to use");
+ case EXPR_SET_REF:
+ return stmt_binary_error(ctx, *expr, stmt,
+ "you cannot reference a set here, "
+ "unknown value to use");
+ default:
+ break;
+ }
+
return 0;
}