From e9e3ab549d5a73f85e19eed5b915d78870f8892c Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Tue, 12 Jan 2021 17:26:08 +0100
Subject: Move FamousDefs fixture out into its own file

---
 crates/ide_db/src/helpers/famous_defs_fixture.rs | 119 +++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 crates/ide_db/src/helpers/famous_defs_fixture.rs

(limited to 'crates/ide_db/src/helpers/famous_defs_fixture.rs')

diff --git a/crates/ide_db/src/helpers/famous_defs_fixture.rs b/crates/ide_db/src/helpers/famous_defs_fixture.rs
new file mode 100644
index 000000000..f3d355861
--- /dev/null
+++ b/crates/ide_db/src/helpers/famous_defs_fixture.rs
@@ -0,0 +1,119 @@
+//- /libcore.rs crate:core
+pub mod convert {
+    pub trait From<T> {
+        fn from(t: T) -> Self;
+    }
+}
+
+pub mod default {
+    pub trait Default {
+        fn default() -> Self;
+    }
+}
+
+pub mod iter {
+    pub use self::traits::{collect::IntoIterator, iterator::Iterator};
+    mod traits {
+        pub(crate) mod iterator {
+            use crate::option::Option;
+            pub trait Iterator {
+                type Item;
+                fn next(&mut self) -> Option<Self::Item>;
+                fn by_ref(&mut self) -> &mut Self {
+                    self
+                }
+                fn take(self, n: usize) -> crate::iter::Take<Self> {
+                    crate::iter::Take { inner: self }
+                }
+            }
+
+            impl<I: Iterator> Iterator for &mut I {
+                type Item = I::Item;
+                fn next(&mut self) -> Option<I::Item> {
+                    (**self).next()
+                }
+            }
+        }
+        pub(crate) mod collect {
+            pub trait IntoIterator {
+                type Item;
+            }
+        }
+    }
+
+    pub use self::sources::*;
+    pub(crate) mod sources {
+        use super::Iterator;
+        use crate::option::Option::{self, *};
+        pub struct Repeat<A> {
+            element: A,
+        }
+
+        pub fn repeat<T>(elt: T) -> Repeat<T> {
+            Repeat { element: elt }
+        }
+
+        impl<A> Iterator for Repeat<A> {
+            type Item = A;
+
+            fn next(&mut self) -> Option<A> {
+                None
+            }
+        }
+    }
+
+    pub use self::adapters::*;
+    pub(crate) mod adapters {
+        use super::Iterator;
+        use crate::option::Option::{self, *};
+        pub struct Take<I> {
+            pub(crate) inner: I,
+        }
+        impl<I> Iterator for Take<I>
+        where
+            I: Iterator,
+        {
+            type Item = <I as Iterator>::Item;
+            fn next(&mut self) -> Option<<I as Iterator>::Item> {
+                None
+            }
+        }
+    }
+}
+
+pub mod ops {
+    #[lang = "fn"]
+    pub trait Fn<Args>: FnMut<Args> {
+        extern "rust-call" fn call(&self, args: Args) -> Self::Output;
+    }
+
+    #[lang = "fn_mut"]
+    pub trait FnMut<Args>: FnOnce<Args> {
+        extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output;
+    }
+    #[lang = "fn_once"]
+    pub trait FnOnce<Args> {
+        #[lang = "fn_once_output"]
+        type Output;
+        extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
+    }
+}
+
+pub mod option {
+    pub enum Option<T> {
+        None,
+        Some(T),
+    }
+}
+
+pub mod prelude {
+    pub use crate::{
+        convert::From,
+        default::Default,
+        iter::{IntoIterator, Iterator},
+        ops::{Fn, FnMut, FnOnce},
+        option::Option::{self, *},
+    };
+}
+#[prelude_import]
+pub use prelude::*;
-- 
cgit v1.2.3


From 3d6480bc3103f7238b1b0e020518e8aa72af3156 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Tue, 12 Jan 2021 20:19:13 +0100
Subject: Render Fn* trait objects and impl types as rust does

---
 crates/ide_db/src/helpers/famous_defs_fixture.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'crates/ide_db/src/helpers/famous_defs_fixture.rs')

diff --git a/crates/ide_db/src/helpers/famous_defs_fixture.rs b/crates/ide_db/src/helpers/famous_defs_fixture.rs
index f3d355861..5e88de64d 100644
--- a/crates/ide_db/src/helpers/famous_defs_fixture.rs
+++ b/crates/ide_db/src/helpers/famous_defs_fixture.rs
@@ -1,4 +1,5 @@
 //- /libcore.rs crate:core
+//! Signatures of traits, types and functions from the core lib for use in tests.
 pub mod convert {
     pub trait From<T> {
         fn from(t: T) -> Self;
-- 
cgit v1.2.3