Fix `bool_to_int_with_if` false positive with `if let`

3 files changed, 49 insertions, 9 deletions

diff --git a/tests/ui/bool_to_int_with_if.fixed b/tests/ui/bool_to_int_with_if.fixed
index 6e0ff053ff2..37d3e3286a4 100644
--- a/tests/ui/bool_to_int_with_if.fixed
+++ b/tests/ui/bool_to_int_with_if.fixed
@@ -1,5 +1,6 @@
 // run-rustfix
 
+#![feature(let_chains)]
 #![warn(clippy::bool_to_int_with_if)]
 #![allow(unused, dead_code, clippy::unnecessary_operation, clippy::no_effect)]
 
@@ -91,3 +92,22 @@ fn side_effect() {}
 fn cond(a: bool, b: bool) -> bool {
     a || b
 }
+
+enum Enum {
+    A,
+    B,
+}
+
+fn if_let(a: Enum, b: Enum) {
+    if let Enum::A = a {
+        1
+    } else {
+        0
+    };
+
+    if let Enum::A = a && let Enum::B = b {
+        1
+    } else {
+        0
+    };
+}
diff --git a/tests/ui/bool_to_int_with_if.rs b/tests/ui/bool_to_int_with_if.rs
index 90ad5aa64da..ebdf86fd185 100644
--- a/tests/ui/bool_to_int_with_if.rs
+++ b/tests/ui/bool_to_int_with_if.rs
@@ -1,5 +1,6 @@
 // run-rustfix
 
+#![feature(let_chains)]
 #![warn(clippy::bool_to_int_with_if)]
 #![allow(unused, dead_code, clippy::unnecessary_operation, clippy::no_effect)]
 
@@ -123,3 +124,22 @@ fn side_effect() {}
 fn cond(a: bool, b: bool) -> bool {
     a || b
 }
+
+enum Enum {
+    A,
+    B,
+}
+
+fn if_let(a: Enum, b: Enum) {
+    if let Enum::A = a {
+        1
+    } else {
+        0
+    };
+
+    if let Enum::A = a && let Enum::B = b {
+        1
+    } else {
+        0
+    };
+}
diff --git a/tests/ui/bool_to_int_with_if.stderr b/tests/ui/bool_to_int_with_if.stderr
index 1f447c9bfd1..5cfb75cc0df 100644
--- a/tests/ui/bool_to_int_with_if.stderr
+++ b/tests/ui/bool_to_int_with_if.stderr
@@ -1,5 +1,5 @@
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:15:5
+  --> $DIR/bool_to_int_with_if.rs:16:5
    |
 LL | /     if a {
 LL | |         1
@@ -12,7 +12,7 @@ LL | |     };
    = note: `-D clippy::bool-to-int-with-if` implied by `-D warnings`
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:20:5
+  --> $DIR/bool_to_int_with_if.rs:21:5
    |
 LL | /     if a {
 LL | |         0
@@ -24,7 +24,7 @@ LL | |     };
    = note: `!a as i32` or `(!a).into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:25:5
+  --> $DIR/bool_to_int_with_if.rs:26:5
    |
 LL | /     if !a {
 LL | |         1
@@ -36,7 +36,7 @@ LL | |     };
    = note: `!a as i32` or `(!a).into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:30:5
+  --> $DIR/bool_to_int_with_if.rs:31:5
    |
 LL | /     if a || b {
 LL | |         1
@@ -48,7 +48,7 @@ LL | |     };
    = note: `(a || b) as i32` or `(a || b).into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:35:5
+  --> $DIR/bool_to_int_with_if.rs:36:5
    |
 LL | /     if cond(a, b) {
 LL | |         1
@@ -60,7 +60,7 @@ LL | |     };
    = note: `cond(a, b) as i32` or `cond(a, b).into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:40:5
+  --> $DIR/bool_to_int_with_if.rs:41:5
    |
 LL | /     if x + y < 4 {
 LL | |         1
@@ -72,7 +72,7 @@ LL | |     };
    = note: `(x + y < 4) as i32` or `(x + y < 4).into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:49:12
+  --> $DIR/bool_to_int_with_if.rs:50:12
    |
 LL |       } else if b {
    |  ____________^
@@ -85,7 +85,7 @@ LL | |     };
    = note: `b as i32` or `b.into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:58:12
+  --> $DIR/bool_to_int_with_if.rs:59:12
    |
 LL |       } else if b {
    |  ____________^
@@ -98,7 +98,7 @@ LL | |     };
    = note: `!b as i32` or `(!b).into()` can also be valid options
 
 error: boolean to int conversion using if
-  --> $DIR/bool_to_int_with_if.rs:118:5
+  --> $DIR/bool_to_int_with_if.rs:119:5
    |
 LL |     if a { 1 } else { 0 }
    |     ^^^^^^^^^^^^^^^^^^^^^ help: replace with from: `u8::from(a)`