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-rw-r--r--crates/hir_ty/src/tests/traits.rs37
1 files changed, 37 insertions, 0 deletions
diff --git a/crates/hir_ty/src/tests/traits.rs b/crates/hir_ty/src/tests/traits.rs
index a5a2df54c..71905baeb 100644
--- a/crates/hir_ty/src/tests/traits.rs
+++ b/crates/hir_ty/src/tests/traits.rs
@@ -161,6 +161,43 @@ mod result {
161} 161}
162 162
163#[test] 163#[test]
164fn infer_tryv2() {
165 check_types(
166 r#"
167//- /main.rs crate:main deps:core
168fn test() {
169 let r: Result<i32, u64> = Result::Ok(1);
170 let v = r?;
171 v;
172} //^ i32
173
174//- /core.rs crate:core
175#[prelude_import] use ops::*;
176mod ops {
177 trait Try {
178 type Output;
179 type Residual;
180 }
181}
182
183#[prelude_import] use result::*;
184mod result {
185 enum Infallible {}
186 enum Result<O, E> {
187 Ok(O),
188 Err(E)
189 }
190
191 impl<O, E> crate::ops::Try for Result<O, E> {
192 type Output = O;
193 type Error = Result<Infallible, E>;
194 }
195}
196"#,
197 );
198}
199
200#[test]
164fn infer_for_loop() { 201fn infer_for_loop() {
165 check_types( 202 check_types(
166 r#" 203 r#"