add expand log

2021-03-13 20:14:21 +08:00
parent f0b7c02f16
commit f1350dd93c
2 changed files with 49 additions and 0 deletions
--- a/crates/hir_expand/src/db.rs
+++ b/crates/hir_expand/src/db.rs
@@ -340,6 +340,8 @@ fn parse_macro_with_arg(
        None => return ExpandResult { value: None, err: result.err },
    };

+    log::debug!("expanded = {}", tt.as_debug_string());
+
    let fragment_kind = to_fragment_kind(db, macro_call_id);

    let (parse, rev_token_map) = match mbe::token_tree_to_syntax_node(&tt, fragment_kind) {