From 7744cd41e2ad79c1b36d3d9fccd3bc0dbfd9e2d9 Mon Sep 17 00:00:00 2001
From: Florian Diebold <flodiebold@gmail.com>
Date: Tue, 7 May 2019 17:35:45 +0200
Subject: Reduce Chalk max_size parameter, add test for slow case

---
 crates/ra_hir/src/ty/tests.rs | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'crates/ra_hir/src/ty/tests.rs')

diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index f0793bfb4..6f8d8fa49 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -2581,6 +2581,35 @@ fn test() { foo.call()<|>; }
     );
 }
 
+#[test]
+fn method_resolution_slow() {
+    // this can get quite slow if we set the solver size limit too high
+    let t = type_at(
+        r#"
+//- /main.rs
+trait Send {}
+
+struct S1; impl Send for S1;
+struct S2; impl Send for S2;
+struct U1;
+
+trait Trait { fn method(self); }
+
+struct X1<A, B> {}
+impl<A, B> Send for X1<A, B> where A: Send, B: Send {}
+
+struct S<B, C> {}
+
+trait Fn {}
+
+impl<B, C> Trait for S<B, C> where C: Fn, B: Send {}
+
+fn test() { (S {}).method()<|>; }
+"#,
+    );
+    assert_eq!(t, "{unknown}");
+}
+
 fn type_at_pos(db: &MockDatabase, pos: FilePosition) -> String {
     let file = db.parse(pos.file_id);
     let expr = algo::find_node_at_offset::<ast::Expr>(file.syntax(), pos.offset).unwrap();
-- 
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