6 files changed, 175 insertions, 0 deletions

diff --git a/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_1.snap b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_1.snap
new file mode 100644
index 000000000..4b99788e4
--- /dev/null
+++ b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_1.snap
@@ -0,0 +1,13 @@
+---
+created: "2019-02-09T16:56:24.803326529Z"
+creator: [email protected]
+source: crates/ra_hir/src/ty/tests.rs
+expression: "&result"
+---
+[54; 139) '{     ...   } }': ()
+[60; 137) 'match ...     }': ()
+[66; 83) 'someth...nknown': Maybe<[unknown]>
+[94; 124) 'Maybe:...thing)': Maybe<[unknown]>
+[106; 123) 'ref mu...ething': &mut [unknown]
+[128; 130) '()': ()
+
diff --git a/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_2.snap b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_2.snap
new file mode 100644
index 000000000..fd0b39b7d
--- /dev/null
+++ b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_2.snap
@@ -0,0 +1,14 @@
+---
+created: "2019-02-09T17:03:11.974225590Z"
+creator: [email protected]
+source: crates/ra_hir/src/ty/tests.rs
+expression: "&result"
+---
+[23; 53) '{     ...n']; }': ()
+[29; 50) '&[0, b...b'\n']': &[u8]
+[30; 50) '[0, b'...b'\n']': [u8]
+[31; 32) '0': u8
+[34; 39) 'b'\n'': u8
+[41; 42) '1': u8
+[44; 49) 'b'\n'': u8
+
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/snapshots/tests__infer_std_crash_4.snap b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_4.snap
new file mode 100644
index 000000000..fb31883ce
--- /dev/null
+++ b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_4.snap
@@ -0,0 +1,16 @@
+---
+created: "2019-02-09T19:55:39.712470520Z"
+creator: [email protected]
+source: crates/ra_hir/src/ty/tests.rs
+expression: "&result"
+---
+[25; 110) '{     ...   } }': ()
+[31; 108) 'match ...     }': ()
+[37; 42) '*self': [unknown]
+[38; 42) 'self': [unknown]
+[53; 95) 'Borrow...), ..}': [unknown]
+[74; 77) 'box': [unknown]
+[78; 87) 'Primitive': [unknown]
+[88; 89) 'p': [unknown]
+[99; 101) '{}': ()
+
diff --git a/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_5.snap b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_5.snap
new file mode 100644
index 000000000..6bbf59fb6
--- /dev/null
+++ b/crates/ra_hir/src/ty/snapshots/tests__infer_std_crash_5.snap
@@ -0,0 +1,30 @@
+---
+created: "2019-02-09T20:28:37.294693728Z"
+creator: [email protected]
+source: crates/ra_hir/src/ty/tests.rs
+expression: "&result"
+---
+[27; 323) '{     ...   } }': ()
+[33; 321) 'for co...     }': ()
+[37; 44) 'content': &[unknown]
+[48; 61) 'doesnt_matter': [unknown]
+[62; 321) '{     ...     }': ()
+[76; 80) 'name': &&[unknown]
+[83; 167) 'if doe...     }': &&[unknown]
+[86; 99) 'doesnt_matter': bool
+[100; 129) '{     ...     }': &&[unknown]
+[114; 119) 'first': &&[unknown]
+[135; 167) '{     ...     }': &&[unknown]
+[149; 157) '&content': &&[unknown]
+[150; 157) 'content': &[unknown]
+[182; 189) 'content': &&[unknown]
+[192; 314) 'if ICE...     }': &&[unknown]
+[195; 232) 'ICE_RE..._VALUE': [unknown]
+[195; 248) 'ICE_RE...&name)': bool
+[242; 247) '&name': &&&[unknown]
+[243; 247) 'name': &&[unknown]
+[249; 277) '{     ...     }': &&[unknown]
+[263; 267) 'name': &&[unknown]
+[283; 314) '{     ...     }': &[unknown]
+[297; 304) 'content': &[unknown]
+
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index 2621d1b55..e64fd2749 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -630,6 +630,95 @@ fn test() {
     );
 }
 
+#[test]
+fn infer_std_crash_1() {
+    // caused stack overflow, taken from std
+    check_inference(
+        "infer_std_crash_1",
+        r#"
+enum Maybe<T> {
+    Real(T),
+    Fake,
+}
+
+fn write() {
+    match something_unknown {
+        Maybe::Real(ref mut something) => (),
+    }
+}
+"#,
+    );
+}
+
+#[test]
+fn infer_std_crash_2() {
+    covers!(type_var_resolves_to_int_var);
+    // caused "equating two type variables, ...", taken from std
+    check_inference(
+        "infer_std_crash_2",
+        r#"
+fn test_line_buffer() {
+    &[0, b'\n', 1, b'\n'];
+}
+"#,
+    );
+}
+
+#[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 } => {}
+    }
+}
+"#,
+    );
+}
+
+#[test]
+fn infer_std_crash_4() {
+    // taken from rustc
+    check_inference(
+        "infer_std_crash_4",
+        r#"
+pub fn primitive_type() {
+    match *self {
+        BorrowedRef { type_: box Primitive(p), ..} => {},
+    }
+}
+"#,
+    );
+}
+
+#[test]
+fn infer_std_crash_5() {
+    // taken from rustc
+    check_inference(
+        "infer_std_crash_5",
+        r#"
+fn extra_compiler_flags() {
+    for content in doesnt_matter {
+        let name = if doesnt_matter {
+            first
+        } else {
+            &content
+        };
+
+        let content = if ICE_REPORT_COMPILER_FLAGS_STRIP_VALUE.contains(&name) {
+            name
+        } else {
+            content
+        };
+    }
+}
+"#,
+    );
+}
+
 fn infer(content: &str) -> String {
     let (db, _, file_id) = MockDatabase::with_single_file(content);
     let source_file = db.parse(file_id);