fix indentation + test

Author: yonip23

clippy_lints/src/rc_clone_in_vec_init.rs

@@ -106,18 +106,18 @@ fn elem_snippet(cx: &LateContext<'_>, elem: &Expr<'_>, symbol_name: &str) -> Str
 fn loop_init_suggestion(elem: &str, len: &str, indent: &str) -> String {
     format!(
         r#"{{
-{indent}{indent}let mut v = Vec::with_capacity({len});
-{indent}{indent}(0..{len}).for_each(|_| v.push({elem}));
-{indent}{indent}v
+{indent}    let mut v = Vec::with_capacity({len});
+{indent}    (0..{len}).for_each(|_| v.push({elem}));
+{indent}    v
 {indent}}}"#
     )
 }
 
 fn extract_suggestion(elem: &str, len: &str, indent: &str) -> String {
     format!(
         "{{
-{indent}{indent}let data = {elem};
-{indent}{indent}vec![data; {len}]
+{indent}    let data = {elem};
+{indent}    vec![data; {len}]
 {indent}}}"
     )
 }

tests/ui/rc_clone_in_vec_init/arc.rs

@@ -7,6 +7,16 @@ fn should_warn_simple_case() {
     let v = vec![Arc::new("x".to_string()); 2];
 }
 
+fn should_warn_simple_case_with_big_indentation() {
+    if true {
+        let k = 1;
+        dbg!(k);
+        if true {
+            let v = vec![Arc::new("x".to_string()); 2];
+        }
+    }
+}
+
 fn should_warn_complex_case() {
     let v = vec![
         std::sync::Arc::new(Mutex::new({

tests/ui/rc_clone_in_vec_init/arc.stderr

@@ -23,7 +23,30 @@ LL ~     };
    |
 
 error: calling `Arc::new` in `vec![elem; len]`
-  --> $DIR/arc.rs:11:13
+  --> $DIR/arc.rs:15:21
+   |
+LL |             let v = vec![Arc::new("x".to_string()); 2];
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: each element will point to the same `Arc` instance
+help: consider initializing each `Arc` element individually
+   |
+LL ~             let v = {
+LL +                 let mut v = Vec::with_capacity(2);
+LL +                 (0..2).for_each(|_| v.push(Arc::new("x".to_string())));
+LL +                 v
+LL ~             };
+   |
+help: or if this is intentional, consider extracting the `Arc` initialization to a variable
+   |
+LL ~             let v = {
+LL +                 let data = Arc::new("x".to_string());
+LL +                 vec![data; 2]
+LL ~             };
+   |
+
+error: calling `Arc::new` in `vec![elem; len]`
+  --> $DIR/arc.rs:21:13
    |
 LL |       let v = vec![
    |  _____________^
@@ -53,7 +76,7 @@ LL ~     };
    |
 
 error: calling `Arc::new` in `vec![elem; len]`
-  --> $DIR/arc.rs:20:14
+  --> $DIR/arc.rs:30:14
    |
 LL |       let v1 = vec![
    |  ______________^
@@ -82,5 +105,5 @@ LL +         vec![data; 2]
 LL ~     };
    |
 
-error: aborting due to 3 previous errors
+error: aborting due to 4 previous errors
 

tests/ui/rc_clone_in_vec_init/rc.rs

@@ -8,6 +8,16 @@ fn should_warn_simple_case() {
     let v = vec![Rc::new("x".to_string()); 2];
 }
 
+fn should_warn_simple_case_with_big_indentation() {
+    if true {
+        let k = 1;
+        dbg!(k);
+        if true {
+            let v = vec![Rc::new("x".to_string()); 2];
+        }
+    }
+}
+
 fn should_warn_complex_case() {
     let v = vec![
         std::rc::Rc::new(Mutex::new({

tests/ui/rc_clone_in_vec_init/rc.stderr

@@ -23,7 +23,30 @@ LL ~     };
    |
 
 error: calling `Rc::new` in `vec![elem; len]`
-  --> $DIR/rc.rs:12:13
+  --> $DIR/rc.rs:16:21
+   |
+LL |             let v = vec![Rc::new("x".to_string()); 2];
+   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: each element will point to the same `Rc` instance
+help: consider initializing each `Rc` element individually
+   |
+LL ~             let v = {
+LL +                 let mut v = Vec::with_capacity(2);
+LL +                 (0..2).for_each(|_| v.push(Rc::new("x".to_string())));
+LL +                 v
+LL ~             };
+   |
+help: or if this is intentional, consider extracting the `Rc` initialization to a variable
+   |
+LL ~             let v = {
+LL +                 let data = Rc::new("x".to_string());
+LL +                 vec![data; 2]
+LL ~             };
+   |
+
+error: calling `Rc::new` in `vec![elem; len]`
+  --> $DIR/rc.rs:22:13
    |
 LL |       let v = vec![
    |  _____________^
@@ -53,7 +76,7 @@ LL ~     };
    |
 
 error: calling `Rc::new` in `vec![elem; len]`
-  --> $DIR/rc.rs:21:14
+  --> $DIR/rc.rs:31:14
    |
 LL |       let v1 = vec![
    |  ______________^
@@ -82,5 +105,5 @@ LL +         vec![data; 2]
 LL ~     };
    |
 
-error: aborting due to 3 previous errors
+error: aborting due to 4 previous errors