From 9db970ee082e315cfa04db163fe2e0268b618531 Mon Sep 17 00:00:00 2001
From: lbrande <lovbra00@gmail.com>
Date: Mon, 22 Feb 2021 16:23:42 +0100
Subject: De Morgan's Law assist now correctly inverts <, <=, >, >=.

---
 crates/ide_db/src/helpers.rs                     |  4 ++++
 crates/ide_db/src/helpers/famous_defs_fixture.rs | 11 +++++++++++
 2 files changed, 15 insertions(+)

(limited to 'crates/ide_db')

diff --git a/crates/ide_db/src/helpers.rs b/crates/ide_db/src/helpers.rs
index bc7aee110..f9de8ce0e 100644
--- a/crates/ide_db/src/helpers.rs
+++ b/crates/ide_db/src/helpers.rs
@@ -45,6 +45,10 @@ impl FamousDefs<'_, '_> {
         self.find_crate("core")
     }
 
+    pub fn core_cmp_Ord(&self) -> Option<Trait> {
+        self.find_trait("core:cmp:Ord")
+    }
+
     pub fn core_convert_From(&self) -> Option<Trait> {
         self.find_trait("core:convert:From")
     }
diff --git a/crates/ide_db/src/helpers/famous_defs_fixture.rs b/crates/ide_db/src/helpers/famous_defs_fixture.rs
index 5e88de64d..bb4e9666b 100644
--- a/crates/ide_db/src/helpers/famous_defs_fixture.rs
+++ b/crates/ide_db/src/helpers/famous_defs_fixture.rs
@@ -1,5 +1,15 @@
 //- /libcore.rs crate:core
 //! Signatures of traits, types and functions from the core lib for use in tests.
+pub mod cmp {
+
+    pub trait Ord {
+        fn cmp(&self, other: &Self) -> Ordering;
+        fn max(self, other: Self) -> Self;
+        fn min(self, other: Self) -> Self;
+        fn clamp(self, min: Self, max: Self) -> Self;
+    }
+}
+
 pub mod convert {
     pub trait From<T> {
         fn from(t: T) -> Self;
@@ -109,6 +119,7 @@ pub mod option {
 
 pub mod prelude {
     pub use crate::{
+        cmp::Ord,
         convert::From,
         default::Default,
         iter::{IntoIterator, Iterator},
-- 
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