From cc73abf72c46d9f13a176d93d1d38f3a72d638e3 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Fri, 18 Jun 2021 23:33:01 +0300
Subject: minor: use minicore

---
 crates/ide/src/inlay_hints.rs                      |  4 +-
 crates/ide_completion/src/completions/postfix.rs   | 18 ++---
 .../handlers/missing_ok_or_some_in_tail_expr.rs    | 76 ++--------------------
 3 files changed, 13 insertions(+), 85 deletions(-)

diff --git a/crates/ide/src/inlay_hints.rs b/crates/ide/src/inlay_hints.rs
index 335d57a0d..48bab0b2e 100644
--- a/crates/ide/src/inlay_hints.rs
+++ b/crates/ide/src/inlay_hints.rs
@@ -908,9 +908,7 @@ fn main() {
     fn unit_structs_have_no_type_hints() {
         check_types(
             r#"
-enum Result<T, E> { Ok(T), Err(E) }
-use Result::*;
-
+//- minicore: result
 struct SyntheticSyntax;
 
 fn main() {
diff --git a/crates/ide_completion/src/completions/postfix.rs b/crates/ide_completion/src/completions/postfix.rs
index c3c7e4589..c11deebcb 100644
--- a/crates/ide_completion/src/completions/postfix.rs
+++ b/crates/ide_completion/src/completions/postfix.rs
@@ -436,18 +436,15 @@ fn main() {
         check_edit(
             "ifl",
             r#"
-enum Option<T> { Some(T), None }
-
+//- minicore: option
 fn main() {
-    let bar = Option::Some(true);
+    let bar = Some(true);
     bar.$0
 }
 "#,
             r#"
-enum Option<T> { Some(T), None }
-
 fn main() {
-    let bar = Option::Some(true);
+    let bar = Some(true);
     if let Some($1) = bar {
     $0
 }
@@ -461,18 +458,15 @@ fn main() {
         check_edit(
             "match",
             r#"
-enum Result<T, E> { Ok(T), Err(E) }
-
+//- minicore: result
 fn main() {
-    let bar = Result::Ok(true);
+    let bar = Ok(true);
     bar.$0
 }
 "#,
             r#"
-enum Result<T, E> { Ok(T), Err(E) }
-
 fn main() {
-    let bar = Result::Ok(true);
+    let bar = Ok(true);
     match bar {
     Ok(${1:_}) => {$2},
     Err(${3:_}) => {$0},
diff --git a/crates/ide_diagnostics/src/handlers/missing_ok_or_some_in_tail_expr.rs b/crates/ide_diagnostics/src/handlers/missing_ok_or_some_in_tail_expr.rs
index 63de54570..c0edcd7d3 100644
--- a/crates/ide_diagnostics/src/handlers/missing_ok_or_some_in_tail_expr.rs
+++ b/crates/ide_diagnostics/src/handlers/missing_ok_or_some_in_tail_expr.rs
@@ -49,26 +49,15 @@ mod tests {
     fn test_wrap_return_type_option() {
         check_fix(
             r#"
-//- /main.rs crate:main deps:core
-use core::option::Option::{self, Some, None};
-
+//- minicore: option, result
 fn div(x: i32, y: i32) -> Option<i32> {
     if y == 0 {
         return None;
     }
     x / y$0
 }
-//- /core/lib.rs crate:core
-pub mod result {
-    pub enum Result<T, E> { Ok(T), Err(E) }
-}
-pub mod option {
-    pub enum Option<T> { Some(T), None }
-}
 "#,
             r#"
-use core::option::Option::{self, Some, None};
-
 fn div(x: i32, y: i32) -> Option<i32> {
     if y == 0 {
         return None;
@@ -83,26 +72,15 @@ fn div(x: i32, y: i32) -> Option<i32> {
     fn test_wrap_return_type() {
         check_fix(
             r#"
-//- /main.rs crate:main deps:core
-use core::result::Result::{self, Ok, Err};
-
+//- minicore: option, result
 fn div(x: i32, y: i32) -> Result<i32, ()> {
     if y == 0 {
         return Err(());
     }
     x / y$0
 }
-//- /core/lib.rs crate:core
-pub mod result {
-    pub enum Result<T, E> { Ok(T), Err(E) }
-}
-pub mod option {
-    pub enum Option<T> { Some(T), None }
-}
 "#,
             r#"
-use core::result::Result::{self, Ok, Err};
-
 fn div(x: i32, y: i32) -> Result<i32, ()> {
     if y == 0 {
         return Err(());
@@ -117,26 +95,15 @@ fn div(x: i32, y: i32) -> Result<i32, ()> {
     fn test_wrap_return_type_handles_generic_functions() {
         check_fix(
             r#"
-//- /main.rs crate:main deps:core
-use core::result::Result::{self, Ok, Err};
-
+//- minicore: option, result
 fn div<T>(x: T) -> Result<T, i32> {
     if x == 0 {
         return Err(7);
     }
     $0x
 }
-//- /core/lib.rs crate:core
-pub mod result {
-    pub enum Result<T, E> { Ok(T), Err(E) }
-}
-pub mod option {
-    pub enum Option<T> { Some(T), None }
-}
 "#,
             r#"
-use core::result::Result::{self, Ok, Err};
-
 fn div<T>(x: T) -> Result<T, i32> {
     if x == 0 {
         return Err(7);
@@ -151,9 +118,7 @@ fn div<T>(x: T) -> Result<T, i32> {
     fn test_wrap_return_type_handles_type_aliases() {
         check_fix(
             r#"
-//- /main.rs crate:main deps:core
-use core::result::Result::{self, Ok, Err};
-
+//- minicore: option, result
 type MyResult<T> = Result<T, ()>;
 
 fn div(x: i32, y: i32) -> MyResult<i32> {
@@ -162,17 +127,8 @@ fn div(x: i32, y: i32) -> MyResult<i32> {
     }
     x $0/ y
 }
-//- /core/lib.rs crate:core
-pub mod result {
-    pub enum Result<T, E> { Ok(T), Err(E) }
-}
-pub mod option {
-    pub enum Option<T> { Some(T), None }
-}
 "#,
             r#"
-use core::result::Result::{self, Ok, Err};
-
 type MyResult<T> = Result<T, ()>;
 
 fn div(x: i32, y: i32) -> MyResult<i32> {
@@ -189,18 +145,8 @@ fn div(x: i32, y: i32) -> MyResult<i32> {
     fn test_wrap_return_type_not_applicable_when_expr_type_does_not_match_ok_type() {
         check_diagnostics(
             r#"
-//- /main.rs crate:main deps:core
-use core::result::Result::{self, Ok, Err};
-
+//- minicore: option, result
 fn foo() -> Result<(), i32> { 0 }
-
-//- /core/lib.rs crate:core
-pub mod result {
-    pub enum Result<T, E> { Ok(T), Err(E) }
-}
-pub mod option {
-    pub enum Option<T> { Some(T), None }
-}
 "#,
         );
     }
@@ -209,20 +155,10 @@ pub mod option {
     fn test_wrap_return_type_not_applicable_when_return_type_is_not_result_or_option() {
         check_diagnostics(
             r#"
-//- /main.rs crate:main deps:core
-use core::result::Result::{self, Ok, Err};
-
+//- minicore: option, result
 enum SomeOtherEnum { Ok(i32), Err(String) }
 
 fn foo() -> SomeOtherEnum { 0 }
-
-//- /core/lib.rs crate:core
-pub mod result {
-    pub enum Result<T, E> { Ok(T), Err(E) }
-}
-pub mod option {
-    pub enum Option<T> { Some(T), None }
-}
 "#,
         );
     }
-- 
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