Merge commit '0e87918536b9833bbc6c683d1f9d51ee2bf03ef1' into clippyup

[rust.git] / clippy_lints / src / formatting.rs

diff --git a/clippy_lints/src/formatting.rs b/clippy_lints/src/formatting.rs
index a05f911c4c5e1264a6c39462bb430699e86b05b2..b10e83c0ea819e5c1c891d310d6a3b7cd3288a72 100644 (file)
--- a/clippy_lints/src/formatting.rs
+++ b/clippy_lints/src/formatting.rs
@@ -1,8 +1,10 @@
-use crate::utils::{differing_macro_contexts, snippet_opt, span_lint_and_help, span_lint_and_note};
+use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_note};
+use clippy_utils::differing_macro_contexts;
+use clippy_utils::source::snippet_opt;
 use if_chain::if_chain;
-use rustc::lint::in_external_macro;
 use rustc_ast::ast::{BinOpKind, Block, Expr, ExprKind, StmtKind, UnOp};
 use rustc_lint::{EarlyContext, EarlyLintPass};
+use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::source_map::Span;
 
@@ -112,12 +114,8 @@
 impl EarlyLintPass for Formatting {
     fn check_block(&mut self, cx: &EarlyContext<'_>, block: &Block) {
         for w in block.stmts.windows(2) {
-            match (&w[0].kind, &w[1].kind) {
-                (&StmtKind::Expr(ref first), &StmtKind::Expr(ref second))
-                | (&StmtKind::Expr(ref first), &StmtKind::Semi(ref second)) => {
-                    check_missing_else(cx, first, second);
-                },
-                _ => (),
+            if let (StmtKind::Expr(first), StmtKind::Expr(second) | StmtKind::Semi(second)) = (&w[0].kind, &w[1].kind) {
+                check_missing_else(cx, first, second);
             }
         }
     }
@@ -149,7 +147,7 @@ fn check_assign(cx: &EarlyContext<'_>, expr: &Expr) {
                                  really are doing `.. = ({op} ..)`",
                                 op = op
                             ),
-                            eqop_span,
+                            None,
                             &format!("to remove this lint, use either `{op}=` or `= {op}`", op = op),
                         );
                     }
@@ -188,6 +186,7 @@ fn check_unop(cx: &EarlyContext<'_>, expr: &Expr) {
                     binop = binop_str,
                     unop = unop_str
                 ),
+                None,
                 &format!(
                     "put a space between `{binop}` and `{unop}` and remove the space after `{unop}`",
                     binop = binop_str,
@@ -226,7 +225,7 @@ fn check_else(cx: &EarlyContext<'_>, expr: &Expr) {
                 SUSPICIOUS_ELSE_FORMATTING,
                 else_span,
                 &format!("this is an `else {}` but the formatting might hide it", else_desc),
-                else_span,
+                None,
                 &format!(
                     "to remove this lint, remove the `else` or remove the new line between \
                      `else` and `{}`",
@@ -265,7 +264,7 @@ fn check_array(cx: &EarlyContext<'_>, expr: &Expr) {
                         POSSIBLE_MISSING_COMMA,
                         lint_span,
                         "possibly missing a comma here",
-                        lint_span,
+                        None,
                         "to remove this lint, add a comma or write the expr in a single line",
                     );
                 }
@@ -296,7 +295,7 @@ fn check_missing_else(cx: &EarlyContext<'_>, first: &Expr, second: &Expr) {
                     SUSPICIOUS_ELSE_FORMATTING,
                     else_span,
                     &format!("this looks like {} but the `else` is missing", looks_like),
-                    else_span,
+                    None,
                     &format!(
                         "to remove this lint, add the missing `else` or add a new line before {}",
                         next_thing,
@@ -308,18 +307,10 @@ fn check_missing_else(cx: &EarlyContext<'_>, first: &Expr, second: &Expr) {
 }
 
 fn is_block(expr: &Expr) -> bool {
-    if let ExprKind::Block(..) = expr.kind {
-        true
-    } else {
-        false
-    }
+    matches!(expr.kind, ExprKind::Block(..))
 }
 
 /// Check if the expression is an `if` or `if let`
 fn is_if(expr: &Expr) -> bool {
-    if let ExprKind::If(..) = expr.kind {
-        true
-    } else {
-        false
-    }
+    matches!(expr.kind, ExprKind::If(..))
 }