Fix handling of literal patterns

Wrap them in a LiteralPat node so they can be distinguished from literal
expressions.

2 files changed, 28 insertions, 0 deletions

diff --git a/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_3.snap b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_3.snap
new file mode 100644
index 000000000..d15b77e17
--- /dev/null
+++ b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_3.snap
@@ -0,0 +1,13 @@
+---
+created: "2019-02-09T18:02:37.377591660Z"
+creator: [email protected]
+source: crates/ra_hir/src/ty/tests.rs
+expression: "&result"
+---
+[18; 102) '{     ...   } }': ()
+[24; 100) 'match ...     }': ()
+[42; 88) 'SizeSk...tail }': [unknown]
+[76; 80) 'true': [unknown]
+[82; 86) 'tail': [unknown]
+[92; 94) '{}': ()
+
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index 3139eba0b..e0b5a6471 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -663,6 +663,21 @@ fn test_line_buffer() {
     );
 }
 
+#[test]
+fn infer_std_crash_3() {
+    // taken from rustc
+    check_inference(
+        "infer_std_crash_3",
+        r#"
+pub fn compute() {
+    match _ {
+        SizeSkeleton::Pointer { non_zero: true, tail } => {}
+    }
+}
+"#,
+    );
+}
+
 fn infer(content: &str) -> String {
     let (db, _, file_id) = MockDatabase::with_single_file(content);
     let source_file = db.parse(file_id);