From 2980508ad2a04364f943af72c2c05337e03f4f6c Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 31 Jan 2019 11:09:19 +0300
Subject: debug impls

---
 crates/ra_hir/src/macros.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'crates/ra_hir/src/macros.rs')

diff --git a/crates/ra_hir/src/macros.rs b/crates/ra_hir/src/macros.rs
index c23ad53cc..4740e5337 100644
--- a/crates/ra_hir/src/macros.rs
+++ b/crates/ra_hir/src/macros.rs
@@ -250,3 +250,29 @@ fn convert_tt(tt: &SyntaxNode) -> Option<tt::Subtree> {
     };
     Some(res)
 }
+
+#[test]
+fn test_convert_tt() {
+    let text = r#"
+macro_rules! impl_froms {
+    ($e:ident: $($v:ident), *) => {
+        $(
+            impl From<$v> for $e {
+                fn from(it: $v) -> $e {
+                    $e::$v(it)
+                }
+            }
+        )*
+    }
+}
+"#;
+    let source_file = ast::SourceFile::parse(text);
+    let maco_call = source_file
+        .syntax()
+        .descendants()
+        .find_map(ast::MacroCall::cast)
+        .unwrap();
+    let tt = macro_call_to_tt(maco_call).unwrap();
+    let tt = mbe::parse(&tt);
+    dbg!(tt);
+}
-- 
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