From 714836959be857e2fbd9c497974055deb2a91f9b Mon Sep 17 00:00:00 2001
From: Chetan Khilosiya <chetan.khilosiya@gmail.com>
Date: Tue, 16 Mar 2021 01:16:59 +0530
Subject: 7709: Added the check for return type of len function.

---
 crates/hir/src/lib.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'crates/hir')

diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index c5161dadd..1a1454068 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -1631,6 +1631,13 @@ impl Type {
         matches!(self.ty.value.interned(&Interner), TyKind::Ref(hir_ty::Mutability::Mut, ..))
     }
 
+    pub fn is_usize(&self) -> bool {
+        matches!(
+            self.ty.value.interned(&Interner),
+            TyKind::Scalar(Scalar::Uint(hir_ty::primitive::UintTy::Usize))
+        )
+    }
+
     pub fn remove_ref(&self) -> Option<Type> {
         match &self.ty.value.interned(&Interner) {
             TyKind::Ref(.., ty) => Some(self.derived(ty.clone())),
-- 
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