save node->fmt as the name of the attribute we're looking for

we should arguably walk through the xlat after it's been parsed,
and replace node->fmt with the *printed* version of the node.
That way we don't have to resort to run-time walking through the
func+argc, etc. in order to print a name for the xlat we're
resolving.

diff --git a/src/lib/unlang/xlat_expr.c b/src/lib/unlang/xlat_expr.c
index e69a7eae847368f074a44c5413acaebb28ea12b8..987263ee73d296435ef57041847dea1cdcf25e45 100644 (file)
--- a/src/lib/unlang/xlat_expr.c
+++ b/src/lib/unlang/xlat_expr.c
@@ -122,6 +122,10 @@ static xlat_exp_t *xlat_exists_alloc(TALLOC_CTX *ctx, xlat_exp_t *child)
        fr_assert(node->call.func != NULL);
        node->flags = node->call.func->flags;
 
+       fr_assert(child->type == XLAT_TMPL);
+       fr_assert(tmpl_contains_attr(child->vpt));
+       node->fmt = child->vpt->name;
+
        xlat_func_append_arg(node, child, false);
 
        return node;