Changes to source formatting

src/chains.rs

@@ -126,7 +126,10 @@ pub fn rewrite_chain(mut expr: &ast::Expr,
         &connector[..]
     };
 
-    Some(format!("{}{}{}", parent_rewrite, first_connector, rewrites.join(&connector)))
+    Some(format!("{}{}{}",
+                 parent_rewrite,
+                 first_connector,
+                 rewrites.join(&connector)))
 }
 
 fn pop_expr_chain<'a>(expr: &'a ast::Expr) -> Option<&'a ast::Expr> {
@@ -151,7 +154,13 @@ fn rewrite_chain_expr(expr: &ast::Expr,
     match expr.node {
         ast::Expr_::ExprMethodCall(ref method_name, ref types, ref expressions) => {
             let inner = &RewriteContext { block_indent: offset, ..*context };
-            rewrite_method_call(method_name.node, types, expressions, span, inner, width, offset)
+            rewrite_method_call(method_name.node,
+                                types,
+                                expressions,
+                                span,
+                                inner,
+                                width,
+                                offset)
         }
         ast::Expr_::ExprField(_, ref field) => {
             Some(format!(".{}", field.node))

src/comment.rs

@@ -343,8 +343,10 @@ mod test {
     #[test]
     fn test_uncommented() {
         assert_eq!(&uncommented("abc/*...*/"), "abc");
-        assert_eq!(&uncommented("// .... /* \n../* /* *** / */ */a/* // */c\n"), "..ac\n");
-        assert_eq!(&uncommented("abc \" /* */\" qsdf"), "abc \" /* */\" qsdf");
+        assert_eq!(&uncommented("// .... /* \n../* /* *** / */ */a/* // */c\n"),
+                   "..ac\n");
+        assert_eq!(&uncommented("abc \" /* */\" qsdf"),
+                   "abc \" /* */\" qsdf");
     }
 
     #[test]
@@ -365,7 +367,9 @@ mod test {
         check("/*/ */test", "test", Some(6));
         check("//test\ntest", "test", Some(7));
         check("/* comment only */", "whatever", None);
-        check("/* comment */ some text /* more commentary */ result", "result", Some(46));
+        check("/* comment */ some text /* more commentary */ result",
+              "result",
+              Some(46));
         check("sup // sup", "p", Some(2));
         check("sup", "x", None);
         check(r#"π? /**/ π is nice!"#, r#"π is nice"#, Some(9));

src/expr.rs

@@ -32,7 +32,11 @@ impl Rewrite for ast::Expr {
     fn rewrite(&self, context: &RewriteContext, width: usize, offset: Indent) -> Option<String> {
         match self.node {
             ast::Expr_::ExprVec(ref expr_vec) => {
-                rewrite_array(expr_vec.iter().map(|e| &**e), self.span, context, width, offset)
+                rewrite_array(expr_vec.iter().map(|e| &**e),
+                              self.span,
+                              context,
+                              width,
+                              offset)
             }
             ast::Expr_::ExprLit(ref l) => {
                 match l.node {
@@ -176,7 +180,10 @@ impl Rewrite for ast::Expr {
             ast::Expr_::ExprIndex(..) |
             ast::Expr_::ExprInlineAsm(..) |
             ast::Expr_::ExprRepeat(..) => {
-                wrap_str(context.snippet(self.span), context.config.max_width, width, offset)
+                wrap_str(context.snippet(self.span),
+                         context.config.max_width,
+                         width,
+                         offset)
             }
         }
     }
@@ -507,7 +514,13 @@ impl<'a> Rewrite for Loop<'a> {
         // FIXME: this drops any comment between "loop" and the block.
         self.block
             .rewrite(context, width, offset)
-            .map(|result| format!("{}{}{} {}", label_string, self.keyword, pat_expr_string, result))
+            .map(|result| {
+                format!("{}{}{} {}",
+                        label_string,
+                        self.keyword,
+                        pat_expr_string,
+                        result)
+            })
     }
 }
 
@@ -1108,7 +1121,9 @@ fn rewrite_paren(context: &RewriteContext,
                  width: usize,
                  offset: Indent)
                  -> Option<String> {
-    debug!("rewrite_paren, width: {}, offset: {:?}", width, offset);
+    debug!("rewrite_paren, width: {}, offset: {:?}",
+           width,
+           offset);
     // 1 is for opening paren, 2 is for opening+closing, we want to keep the closing
     // paren on the same line as the subexpr.
     let subexpr_str = subexpr.rewrite(context, try_opt!(width.checked_sub(2)), offset + 1);
@@ -1124,7 +1139,9 @@ fn rewrite_struct_lit<'a>(context: &RewriteContext,
                           width: usize,
                           offset: Indent)
                           -> Option<String> {
-    debug!("rewrite_struct_lit: width {}, offset {:?}", width, offset);
+    debug!("rewrite_struct_lit: width {}, offset {:?}",
+           width,
+           offset);
     assert!(!fields.is_empty() || base.is_some());
 
     enum StructLitField<'a> {
@@ -1229,10 +1246,15 @@ fn rewrite_struct_lit<'a>(context: &RewriteContext,
                                   .block_indent(context.config)
                                   .to_string(context.config);
         let outer_indent = context.block_indent.to_string(context.config);
-        Some(format!("{} {{\n{}{}\n{}}}", path_str, inner_indent, fields_str, outer_indent))
+        Some(format!("{} {{\n{}{}\n{}}}",
+                     path_str,
+                     inner_indent,
+                     fields_str,
+                     outer_indent))
     };
 
-    match (context.config.struct_lit_style, context.config.struct_lit_multiline_style) {
+    match (context.config.struct_lit_style,
+           context.config.struct_lit_multiline_style) {
         (StructLitStyle::Block, _) if fields_str.contains('\n') || fields_str.len() > h_budget =>
             format_on_newline(),
         (StructLitStyle::Block, MultilineStyle::ForceMulti) => format_on_newline(),
@@ -1250,8 +1272,9 @@ fn rewrite_field(context: &RewriteContext,
                  -> Option<String> {
     let name = &field.ident.node.to_string();
     let overhead = name.len() + 2;
-    let expr = field.expr
-                    .rewrite(context, try_opt!(width.checked_sub(overhead)), offset + overhead);
+    let expr = field.expr.rewrite(context,
+                                  try_opt!(width.checked_sub(overhead)),
+                                  offset + overhead);
     expr.map(|s| format!("{}: {}", name, s))
 }
 
@@ -1261,7 +1284,9 @@ fn rewrite_tuple_lit(context: &RewriteContext,
                      width: usize,
                      offset: Indent)
                      -> Option<String> {
-    debug!("rewrite_tuple_lit: width: {}, offset: {:?}", width, offset);
+    debug!("rewrite_tuple_lit: width: {}, offset: {:?}",
+           width,
+           offset);
     let indent = offset + 1;
     // In case of length 1, need a trailing comma
     if items.len() == 1 {
@@ -1352,7 +1377,9 @@ fn rewrite_unary_prefix(context: &RewriteContext,
                         width: usize,
                         offset: Indent)
                         -> Option<String> {
-    expr.rewrite(context, try_opt!(width.checked_sub(prefix.len())), offset + prefix.len())
+    expr.rewrite(context,
+                 try_opt!(width.checked_sub(prefix.len())),
+                 offset + prefix.len())
         .map(|r| format!("{}{}", prefix, r))
 }
 
@@ -1385,7 +1412,9 @@ fn rewrite_assignment(context: &RewriteContext,
 
     // 1 = space between lhs and operator.
     let max_width = try_opt!(width.checked_sub(operator_str.len() + 1));
-    let lhs_str = format!("{} {}", try_opt!(lhs.rewrite(context, max_width, offset)), operator_str);
+    let lhs_str = format!("{} {}",
+                          try_opt!(lhs.rewrite(context, max_width, offset)),
+                          operator_str);
 
     rewrite_assign_rhs(&context, lhs_str, rhs, width, offset)
 }

src/filemap.rs

@@ -115,7 +115,8 @@ fn write_file(text: &StringBuffer,
             try!(write_system_newlines(&mut v, text, config));
             let fmt_text = String::from_utf8(v).unwrap();
             let diff = make_diff(&ori_text, &fmt_text, 3);
-            print_diff(diff, |line_num| format!("\nDiff at line {}:", line_num));
+            print_diff(diff,
+                       |line_num| format!("\nDiff at line {}:", line_num));
         }
         WriteMode::Return => {
             // io::Write is not implemented for String, working around with

src/issues.rs

@@ -224,12 +224,14 @@ impl BadIssueSeeker {
 fn find_unnumbered_issue() {
     fn check_fail(text: &str, failing_pos: usize) {
         let mut seeker = BadIssueSeeker::new(ReportTactic::Unnumbered, ReportTactic::Unnumbered);
-        assert_eq!(Some(failing_pos), text.chars().position(|c| seeker.inspect(c).is_some()));
+        assert_eq!(Some(failing_pos),
+                   text.chars().position(|c| seeker.inspect(c).is_some()));
     }
 
     fn check_pass(text: &str) {
         let mut seeker = BadIssueSeeker::new(ReportTactic::Unnumbered, ReportTactic::Unnumbered);
-        assert_eq!(None, text.chars().position(|c| seeker.inspect(c).is_some()));
+        assert_eq!(None,
+                   text.chars().position(|c| seeker.inspect(c).is_some()));
     }
 
     check_fail("TODO\n", 4);
@@ -256,11 +258,17 @@ fn find_issue() {
                          ReportTactic::Always,
                          ReportTactic::Never));
 
-    assert!(!is_bad_issue("TODO: no number\n", ReportTactic::Never, ReportTactic::Always));
+    assert!(!is_bad_issue("TODO: no number\n",
+                          ReportTactic::Never,
+                          ReportTactic::Always));
 
-    assert!(is_bad_issue("This is a FIXME(#1)\n", ReportTactic::Never, ReportTactic::Always));
+    assert!(is_bad_issue("This is a FIXME(#1)\n",
+                         ReportTactic::Never,
+                         ReportTactic::Always));
 
-    assert!(!is_bad_issue("bad FIXME\n", ReportTactic::Always, ReportTactic::Never));
+    assert!(!is_bad_issue("bad FIXME\n",
+                          ReportTactic::Always,
+                          ReportTactic::Never));
 }
 
 #[test]

src/items.rs

@@ -307,7 +307,9 @@ impl<'a> FmtVisitor<'a> {
 
         let context = self.get_context();
         let ret_str = fd.output
-                        .rewrite(&context, self.config.max_width - indent.width(), indent)
+                        .rewrite(&context,
+                                 self.config.max_width - indent.width(),
+                                 indent)
                         .unwrap();
 
         // Args.
@@ -1011,7 +1013,9 @@ impl<'a> FmtVisitor<'a> {
         // 9 = " where ".len() + " {".len()
         if density == Density::Tall || preds_str.contains('\n') ||
            indent.width() + 9 + preds_str.len() > self.config.max_width {
-            Some(format!("\n{}where {}", (indent + extra_indent).to_string(self.config), preds_str))
+            Some(format!("\n{}where {}",
+                         (indent + extra_indent).to_string(self.config),
+                         preds_str))
         } else {
             Some(format!(" where {}", preds_str))
         }
@@ -1041,7 +1045,10 @@ impl Rewrite for ast::Arg {
     fn rewrite(&self, context: &RewriteContext, width: usize, offset: Indent) -> Option<String> {
         if is_named_arg(self) {
             if let ast::Ty_::TyInfer = self.ty.node {
-                wrap_str(pprust::pat_to_string(&self.pat), context.config.max_width, width, offset)
+                wrap_str(pprust::pat_to_string(&self.pat),
+                         context.config.max_width,
+                         width,
+                         offset)
             } else {
                 let mut result = pprust::pat_to_string(&self.pat);
                 result.push_str(": ");

src/lib.rs

@@ -115,7 +115,8 @@ impl Indent {
 
     pub fn to_string(&self, config: &Config) -> String {
         let (num_tabs, num_spaces) = if config.hard_tabs {
-            (self.block_indent / config.tab_spaces, self.alignment)
+            (self.block_indent / config.tab_spaces,
+             self.alignment)
         } else {
             (0, self.block_indent + self.alignment)
         };
@@ -146,7 +147,8 @@ impl Sub for Indent {
     type Output = Indent;
 
     fn sub(self, rhs: Indent) -> Indent {
-        Indent::new(self.block_indent - rhs.block_indent, self.alignment - rhs.alignment)
+        Indent::new(self.block_indent - rhs.block_indent,
+                    self.alignment - rhs.alignment)
     }
 }
 

src/macros.rs

@@ -103,7 +103,10 @@ pub fn rewrite_macro(mac: &ast::Mac,
         }
         MacroStyle::Braces => {
             // Skip macro invocations with braces, for now.
-            wrap_str(context.snippet(mac.span), context.config.max_width, width, offset)
+            wrap_str(context.snippet(mac.span),
+                     context.config.max_width,
+                     width,
+                     offset)
         }
     }
 }

src/missed_spans.rs

@@ -16,7 +16,8 @@ impl<'a> FmtVisitor<'a> {
     // TODO these format_missing methods are ugly. Refactor and add unit tests
     // for the central whitespace stripping loop.
     pub fn format_missing(&mut self, end: BytePos) {
-        self.format_missing_inner(end, |this, last_snippet, _| this.buffer.push_str(last_snippet))
+        self.format_missing_inner(end,
+                                  |this, last_snippet, _| this.buffer.push_str(last_snippet))
     }
 
     pub fn format_missing_with_indent(&mut self, end: BytePos) {

src/modules.rs

@@ -25,7 +25,10 @@ pub fn list_files<'a>(krate: &'a ast::Crate,
                       -> HashMap<PathBuf, &'a ast::Mod> {
     let mut result = HashMap::new();
     let root_filename: PathBuf = codemap.span_to_filename(krate.span).into();
-    list_submodules(&krate.module, root_filename.parent().unwrap(), codemap, &mut result);
+    list_submodules(&krate.module,
+                    root_filename.parent().unwrap(),
+                    codemap,
+                    &mut result);
     result.insert(root_filename, &krate.module);
     result
 }

src/types.rs

@@ -205,7 +205,9 @@ fn rewrite_segment(segment: &ast::PathSegment,
                                  .collect::<Vec<_>>();
 
             let next_span_lo = param_list.last().unwrap().get_span().hi + BytePos(1);
-            let list_lo = span_after(codemap::mk_sp(*span_lo, span_hi), "<", context.codemap);
+            let list_lo = span_after(codemap::mk_sp(*span_lo, span_hi),
+                                     "<",
+                                     context.codemap);
             let separator = get_path_separator(context.codemap, *span_lo, list_lo);
 
             // 1 for <
@@ -363,7 +365,8 @@ impl Rewrite for ast::TyParamBound {
                 tref.rewrite(context, width, offset)
             }
             ast::TyParamBound::TraitTyParamBound(ref tref, ast::TraitBoundModifier::Maybe) => {
-                Some(format!("?{}", try_opt!(tref.rewrite(context, width - 1, offset + 1))))
+                Some(format!("?{}",
+                             try_opt!(tref.rewrite(context, width - 1, offset + 1))))
             }
             ast::TyParamBound::RegionTyParamBound(ref l) => {
                 Some(pprust::lifetime_to_string(l))

src/visitor.rs

@@ -316,7 +316,9 @@ impl<'a> FmtVisitor<'a> {
     }
 
     fn format_mod(&mut self, m: &ast::Mod, s: Span, ident: ast::Ident) {
-        debug!("FmtVisitor::format_mod: ident: {:?}, span: {:?}", ident, s);
+        debug!("FmtVisitor::format_mod: ident: {:?}, span: {:?}",
+               ident,
+               s);
 
         // Decide whether this is an inline mod or an external mod.
         let local_file_name = self.codemap.span_to_filename(s);
@@ -354,7 +356,9 @@ impl<'a> FmtVisitor<'a> {
             overflow_indent: Indent::empty(),
         };
         // 1 = ";"
-        match vp.rewrite(&context, self.config.max_width - offset.width() - 1, offset) {
+        match vp.rewrite(&context,
+                         self.config.max_width - offset.width() - 1,
+                         offset) {
             Some(ref s) if s.is_empty() => {
                 // Format up to last newline
                 let prev_span = codemap::mk_sp(self.last_pos, span.lo);