diff --git a/clippy_lints/src/assign_ops.rs b/clippy_lints/src/assign_ops.rs
index 5acdf8172e68..c2d0ccd1534e 100644
--- a/clippy_lints/src/assign_ops.rs
+++ b/clippy_lints/src/assign_ops.rs
@@ -4,6 +4,7 @@ use rustc::hir;
 use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast;
 
 /// **What it does:** Checks for compound assignment operations (`+=` and
diff --git a/clippy_lints/src/attrs.rs b/clippy_lints/src/attrs.rs
index c19f075cea37..9d8b8a7f9e60 100644
--- a/clippy_lints/src/attrs.rs
+++ b/clippy_lints/src/attrs.rs
@@ -8,6 +8,7 @@ use crate::utils::{
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, TyCtxt};
 use semver::Version;
 use syntax::ast::{AttrStyle, Attribute, Lit, LitKind, MetaItemKind, NestedMetaItem, NestedMetaItemKind};
diff --git a/clippy_lints/src/bit_mask.rs b/clippy_lints/src/bit_mask.rs
index e772042f0a69..2e4e60c412a3 100644
--- a/clippy_lints/src/bit_mask.rs
+++ b/clippy_lints/src/bit_mask.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast::LitKind;
 use syntax::codemap::Span;
 use crate::utils::{span_lint, span_lint_and_then};
diff --git a/clippy_lints/src/bytecount.rs b/clippy_lints/src/bytecount.rs
index f27961783e7f..f66c376c8642 100644
--- a/clippy_lints/src/bytecount.rs
+++ b/clippy_lints/src/bytecount.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use syntax::ast::{Name, UintTy};
 use crate::utils::{contains_name, get_pat_name, match_type, paths, single_segment_path, snippet, span_lint_and_sugg,
diff --git a/clippy_lints/src/collapsible_if.rs b/clippy_lints/src/collapsible_if.rs
index a2d280e75e3c..b77935196020 100644
--- a/clippy_lints/src/collapsible_if.rs
+++ b/clippy_lints/src/collapsible_if.rs
@@ -14,6 +14,7 @@
 
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast;
 
 use crate::utils::{in_macro, snippet_block, span_lint_and_sugg, span_lint_and_then};
diff --git a/clippy_lints/src/default_trait_access.rs b/clippy_lints/src/default_trait_access.rs
index 915386757f0e..4078237e8aa8 100644
--- a/clippy_lints/src/default_trait_access.rs
+++ b/clippy_lints/src/default_trait_access.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::TypeVariants;
 
 use crate::utils::{any_parent_is_automatically_derived, match_def_path, opt_def_id, paths, span_lint_and_sugg};
diff --git a/clippy_lints/src/derive.rs b/clippy_lints/src/derive.rs
index 02816ce9e4e5..0689ef25c207 100644
--- a/clippy_lints/src/derive.rs
+++ b/clippy_lints/src/derive.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty};
 use rustc::hir::*;
 use syntax::codemap::Span;
diff --git a/clippy_lints/src/drop_forget_ref.rs b/clippy_lints/src/drop_forget_ref.rs
index 8fb01d79a1ee..071afde986ad 100644
--- a/clippy_lints/src/drop_forget_ref.rs
+++ b/clippy_lints/src/drop_forget_ref.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use rustc::hir::*;
 use crate::utils::{is_copy, match_def_path, opt_def_id, paths, span_note_and_lint};
diff --git a/clippy_lints/src/duration_subsec.rs b/clippy_lints/src/duration_subsec.rs
index 4679ce158712..517befa7790f 100644
--- a/clippy_lints/src/duration_subsec.rs
+++ b/clippy_lints/src/duration_subsec.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::codemap::Spanned;
 
 use crate::consts::{constant, Constant};
diff --git a/clippy_lints/src/entry.rs b/clippy_lints/src/entry.rs
index 8f731e992ab6..26ee6be5796b 100644
--- a/clippy_lints/src/entry.rs
+++ b/clippy_lints/src/entry.rs
@@ -2,6 +2,7 @@ use rustc::hir::*;
 use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::codemap::Span;
 use crate::utils::SpanlessEq;
 use crate::utils::{get_item_name, match_type, paths, snippet, span_lint_and_then, walk_ptrs_ty};
diff --git a/clippy_lints/src/eval_order_dependence.rs b/clippy_lints/src/eval_order_dependence.rs
index 33f6295a23bd..b0295d2e7d47 100644
--- a/clippy_lints/src/eval_order_dependence.rs
+++ b/clippy_lints/src/eval_order_dependence.rs
@@ -3,6 +3,7 @@ use rustc::hir::*;
 use rustc::ty;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast;
 use crate::utils::{get_parent_expr, span_lint, span_note_and_lint};
 
diff --git a/clippy_lints/src/excessive_precision.rs b/clippy_lints/src/excessive_precision.rs
index a1c4484a2e55..28819077f9bc 100644
--- a/clippy_lints/src/excessive_precision.rs
+++ b/clippy_lints/src/excessive_precision.rs
@@ -1,6 +1,7 @@
 use rustc::hir;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::TypeVariants;
 use std::f32;
 use std::f64;
diff --git a/clippy_lints/src/explicit_write.rs b/clippy_lints/src/explicit_write.rs
index 554d52d4499d..22e6834ee884 100644
--- a/clippy_lints/src/explicit_write.rs
+++ b/clippy_lints/src/explicit_write.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use crate::utils::{is_expn_of, match_def_path, resolve_node, span_lint};
 use crate::utils::opt_def_id;
 
diff --git a/clippy_lints/src/fallible_impl_from.rs b/clippy_lints/src/fallible_impl_from.rs
index b6136708e18b..18c3d807f1ab 100644
--- a/clippy_lints/src/fallible_impl_from.rs
+++ b/clippy_lints/src/fallible_impl_from.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir;
 use rustc::ty;
 use syntax_pos::Span;
diff --git a/clippy_lints/src/format.rs b/clippy_lints/src/format.rs
index 31ae3eb0fec4..668ef3dbf6ef 100644
--- a/clippy_lints/src/format.rs
+++ b/clippy_lints/src/format.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use syntax::ast::LitKind;
 use syntax_pos::Span;
diff --git a/clippy_lints/src/infallible_destructuring_match.rs b/clippy_lints/src/infallible_destructuring_match.rs
index 0f1ccddb3c44..8b8cb32deb1a 100644
--- a/clippy_lints/src/infallible_destructuring_match.rs
+++ b/clippy_lints/src/infallible_destructuring_match.rs
@@ -2,6 +2,7 @@ use super::utils::{get_arg_name, match_var, remove_blocks, snippet, span_lint_an
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 
 /// **What it does:** Checks for matches being used to destructure a single-variant enum
 /// or tuple struct where a `let` will suffice.
diff --git a/clippy_lints/src/invalid_ref.rs b/clippy_lints/src/invalid_ref.rs
index 8fd097edafd8..b529cb3ac381 100644
--- a/clippy_lints/src/invalid_ref.rs
+++ b/clippy_lints/src/invalid_ref.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use rustc::hir::*;
 use crate::utils::{match_def_path, opt_def_id, paths, span_help_and_lint};
diff --git a/clippy_lints/src/let_if_seq.rs b/clippy_lints/src/let_if_seq.rs
index dd8d1d175ccc..57ca5eff9553 100644
--- a/clippy_lints/src/let_if_seq.rs
+++ b/clippy_lints/src/let_if_seq.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir;
 use rustc::hir::BindingAnnotation;
 use rustc::hir::def::Def;
diff --git a/clippy_lints/src/lib.rs b/clippy_lints/src/lib.rs
index 6b6df8490014..1c4c4ef18fff 100644
--- a/clippy_lints/src/lib.rs
+++ b/clippy_lints/src/lib.rs
@@ -19,9 +19,6 @@ use toml;
 use rustc_plugin;
 
 
-#[macro_use]
-extern crate if_chain;
-
 macro_rules! declare_clippy_lint {
     { pub $name:tt, style, $description:tt } => {
         declare_lint! { pub $name, Warn, $description }
diff --git a/clippy_lints/src/literal_representation.rs b/clippy_lints/src/literal_representation.rs
index 2788258a0cd8..bb5a923eaf9c 100644
--- a/clippy_lints/src/literal_representation.rs
+++ b/clippy_lints/src/literal_representation.rs
@@ -3,6 +3,7 @@
 
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast::*;
 use syntax_pos;
 use crate::utils::{in_external_macro, snippet_opt, span_lint_and_sugg};
diff --git a/clippy_lints/src/loops.rs b/clippy_lints/src/loops.rs
index f975df6001e0..86580c27cff8 100644
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@@ -7,6 +7,7 @@ use rustc::hir::intravisit::{walk_block, walk_decl, walk_expr, walk_pat, walk_st
 use rustc::hir::map::Node::{NodeBlock, NodeExpr, NodeStmt};
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::middle::region;
 // use rustc::middle::region::CodeExtent;
 use rustc::middle::expr_use_visitor::*;
diff --git a/clippy_lints/src/map_clone.rs b/clippy_lints/src/map_clone.rs
index 40bb23649358..0c427c5ffe4c 100644
--- a/clippy_lints/src/map_clone.rs
+++ b/clippy_lints/src/map_clone.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use rustc::ty;
 use syntax::ast;
diff --git a/clippy_lints/src/map_unit_fn.rs b/clippy_lints/src/map_unit_fn.rs
index 99df6a41eef2..bd5613d0b487 100644
--- a/clippy_lints/src/map_unit_fn.rs
+++ b/clippy_lints/src/map_unit_fn.rs
@@ -1,6 +1,7 @@
 use rustc::hir;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use rustc_errors::Applicability;
 use syntax::codemap::Span;
diff --git a/clippy_lints/src/matches.rs b/clippy_lints/src/matches.rs
index 82ed199e0cb0..65c360922b29 100644
--- a/clippy_lints/src/matches.rs
+++ b/clippy_lints/src/matches.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty};
 use std::cmp::Ordering;
 use std::collections::Bound;
diff --git a/clippy_lints/src/methods.rs b/clippy_lints/src/methods.rs
index 30c2941efe46..3ebad1d705b9 100644
--- a/clippy_lints/src/methods.rs
+++ b/clippy_lints/src/methods.rs
@@ -2,6 +2,7 @@ use matches::matches;
 use rustc::hir;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty};
 use rustc::hir::def::Def;
 use std::borrow::Cow;
diff --git a/clippy_lints/src/misc.rs b/clippy_lints/src/misc.rs
index 34afa1585aca..a32c95e96725 100644
--- a/clippy_lints/src/misc.rs
+++ b/clippy_lints/src/misc.rs
@@ -4,6 +4,7 @@ use rustc::hir::*;
 use rustc::hir::intravisit::FnKind;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use syntax::codemap::{ExpnFormat, Span};
 use crate::utils::{get_item_name, get_parent_expr, implements_trait, in_constant, in_macro, is_integer_literal,
diff --git a/clippy_lints/src/misc_early.rs b/clippy_lints/src/misc_early.rs
index a5ee070d9009..5bf7d5f3404c 100644
--- a/clippy_lints/src/misc_early.rs
+++ b/clippy_lints/src/misc_early.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use std::collections::HashMap;
 use std::char;
 use syntax::ast::*;
diff --git a/clippy_lints/src/needless_borrow.rs b/clippy_lints/src/needless_borrow.rs
index 728ca969ac58..7986b43919c8 100644
--- a/clippy_lints/src/needless_borrow.rs
+++ b/clippy_lints/src/needless_borrow.rs
@@ -4,6 +4,7 @@
 
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::{BindingAnnotation, Expr, ExprKind, MutImmutable, Pat, PatKind};
 use rustc::ty;
 use rustc::ty::adjustment::{Adjust, Adjustment};
diff --git a/clippy_lints/src/needless_borrowed_ref.rs b/clippy_lints/src/needless_borrowed_ref.rs
index ebefcfcca167..1679a9007b46 100644
--- a/clippy_lints/src/needless_borrowed_ref.rs
+++ b/clippy_lints/src/needless_borrowed_ref.rs
@@ -4,6 +4,7 @@
 
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::{BindingAnnotation, MutImmutable, Pat, PatKind};
 use crate::utils::{in_macro, snippet, span_lint_and_then};
 
diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index 3300c9f23fb0..7463ea2d9c3d 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -4,6 +4,7 @@ use rustc::hir::map::*;
 use rustc::hir::intravisit::FnKind;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, RegionKind, TypeFoldable};
 use rustc::traits;
 use rustc::middle::expr_use_visitor as euv;
diff --git a/clippy_lints/src/neg_cmp_op_on_partial_ord.rs b/clippy_lints/src/neg_cmp_op_on_partial_ord.rs
index fd2266c86144..70a47674d9fe 100644
--- a/clippy_lints/src/neg_cmp_op_on_partial_ord.rs
+++ b/clippy_lints/src/neg_cmp_op_on_partial_ord.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 
 use crate::utils::{self, paths, span_lint, in_external_macro};
 
diff --git a/clippy_lints/src/neg_multiply.rs b/clippy_lints/src/neg_multiply.rs
index 0a12217e8d0c..96f2e58f3bed 100644
--- a/clippy_lints/src/neg_multiply.rs
+++ b/clippy_lints/src/neg_multiply.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::codemap::{Span, Spanned};
 
 use crate::consts::{self, Constant};
diff --git a/clippy_lints/src/new_without_default.rs b/clippy_lints/src/new_without_default.rs
index 80c92042687e..a21927102923 100644
--- a/clippy_lints/src/new_without_default.rs
+++ b/clippy_lints/src/new_without_default.rs
@@ -2,6 +2,7 @@ use rustc::hir::def_id::DefId;
 use rustc::hir;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty};
 use syntax::codemap::Span;
 use crate::utils::paths;
diff --git a/clippy_lints/src/ok_if_let.rs b/clippy_lints/src/ok_if_let.rs
index 6a21807b90b3..2a7f71c71452 100644
--- a/clippy_lints/src/ok_if_let.rs
+++ b/clippy_lints/src/ok_if_let.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use crate::utils::{match_type, method_chain_args, paths, snippet, span_help_and_lint};
 
diff --git a/clippy_lints/src/overflow_check_conditional.rs b/clippy_lints/src/overflow_check_conditional.rs
index 0ae400879da0..5714bdb521c8 100644
--- a/clippy_lints/src/overflow_check_conditional.rs
+++ b/clippy_lints/src/overflow_check_conditional.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use crate::utils::{span_lint, SpanlessEq};
 
diff --git a/clippy_lints/src/panic_unimplemented.rs b/clippy_lints/src/panic_unimplemented.rs
index 2edcef5bcda4..e8dfca24c574 100644
--- a/clippy_lints/src/panic_unimplemented.rs
+++ b/clippy_lints/src/panic_unimplemented.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast::LitKind;
 use syntax::ptr::P;
 use syntax::ext::quote::rt::Span;
diff --git a/clippy_lints/src/partialeq_ne_impl.rs b/clippy_lints/src/partialeq_ne_impl.rs
index e001bbebd3c2..675d014c527a 100644
--- a/clippy_lints/src/partialeq_ne_impl.rs
+++ b/clippy_lints/src/partialeq_ne_impl.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use crate::utils::{is_automatically_derived, span_lint};
 
diff --git a/clippy_lints/src/ptr.rs b/clippy_lints/src/ptr.rs
index 5093819db5f5..167ce84f803f 100644
--- a/clippy_lints/src/ptr.rs
+++ b/clippy_lints/src/ptr.rs
@@ -6,6 +6,7 @@ use rustc::hir::map::NodeItem;
 use rustc::hir::QPath;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use syntax::ast::NodeId;
 use syntax::codemap::Span;
diff --git a/clippy_lints/src/question_mark.rs b/clippy_lints/src/question_mark.rs
index 9ede9afebd73..b2d53e124ff4 100644
--- a/clippy_lints/src/question_mark.rs
+++ b/clippy_lints/src/question_mark.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use rustc::hir::def::Def;
 use crate::utils::sugg::Sugg;
diff --git a/clippy_lints/src/ranges.rs b/clippy_lints/src/ranges.rs
index 03bf7be4285f..9525ea014a9e 100644
--- a/clippy_lints/src/ranges.rs
+++ b/clippy_lints/src/ranges.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use syntax::ast::RangeLimits;
 use syntax::codemap::Spanned;
diff --git a/clippy_lints/src/reference.rs b/clippy_lints/src/reference.rs
index 6baa61745634..27aca6f4bf1a 100644
--- a/clippy_lints/src/reference.rs
+++ b/clippy_lints/src/reference.rs
@@ -1,6 +1,7 @@
 use syntax::ast::{Expr, ExprKind, UnOp};
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use crate::utils::{snippet, span_lint_and_sugg};
 
 /// **What it does:** Checks for usage of `*&` and `*&mut` in expressions.
diff --git a/clippy_lints/src/regex.rs b/clippy_lints/src/regex.rs
index 114a14bdf967..39b7888dcc60 100644
--- a/clippy_lints/src/regex.rs
+++ b/clippy_lints/src/regex.rs
@@ -2,6 +2,7 @@ use regex_syntax;
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use std::collections::HashSet;
 use syntax::ast::{LitKind, NodeId, StrStyle};
 use syntax::codemap::{BytePos, Span};
diff --git a/clippy_lints/src/replace_consts.rs b/clippy_lints/src/replace_consts.rs
index 5f5957b02099..b9a4c6ebb195 100644
--- a/clippy_lints/src/replace_consts.rs
+++ b/clippy_lints/src/replace_consts.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir;
 use rustc::hir::def::Def;
 use crate::utils::{match_def_path, span_lint_and_sugg};
diff --git a/clippy_lints/src/returns.rs b/clippy_lints/src/returns.rs
index 29d50d87fb8d..2bfc1e7d1071 100644
--- a/clippy_lints/src/returns.rs
+++ b/clippy_lints/src/returns.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use syntax::ast;
 use syntax::codemap::Span;
 use syntax::visit::FnKind;
diff --git a/clippy_lints/src/suspicious_trait_impl.rs b/clippy_lints/src/suspicious_trait_impl.rs
index 704ad04325da..bd0f6dc68dcc 100644
--- a/clippy_lints/src/suspicious_trait_impl.rs
+++ b/clippy_lints/src/suspicious_trait_impl.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir;
 use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
 use syntax::ast;
diff --git a/clippy_lints/src/swap.rs b/clippy_lints/src/swap.rs
index e76cf78f8d10..4278d6d74ac6 100644
--- a/clippy_lints/src/swap.rs
+++ b/clippy_lints/src/swap.rs
@@ -2,6 +2,7 @@ use matches::matches;
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty;
 use crate::utils::{differing_macro_contexts, match_type, paths, snippet, span_lint_and_then, walk_ptrs_ty, SpanlessEq};
 use crate::utils::sugg::Sugg;
diff --git a/clippy_lints/src/transmute.rs b/clippy_lints/src/transmute.rs
index 7abf5fdcc923..aa964e4558f3 100644
--- a/clippy_lints/src/transmute.rs
+++ b/clippy_lints/src/transmute.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty};
 use rustc::hir::*;
 use std::borrow::Cow;
diff --git a/clippy_lints/src/trivially_copy_pass_by_ref.rs b/clippy_lints/src/trivially_copy_pass_by_ref.rs
index 8d2b21058cf6..b6fd8db51575 100644
--- a/clippy_lints/src/trivially_copy_pass_by_ref.rs
+++ b/clippy_lints/src/trivially_copy_pass_by_ref.rs
@@ -6,6 +6,7 @@ use rustc::hir::map::*;
 use rustc::hir::intravisit::FnKind;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::TypeVariants;
 use rustc::session::config::Config as SessionConfig;
 use rustc_target::spec::abi::Abi;
diff --git a/clippy_lints/src/types.rs b/clippy_lints/src/types.rs
index df14eb159570..2921b502c1f8 100644
--- a/clippy_lints/src/types.rs
+++ b/clippy_lints/src/types.rs
@@ -4,6 +4,7 @@ use rustc::hir::*;
 use rustc::hir::intravisit::{walk_body, walk_expr, walk_ty, FnKind, NestedVisitorMap, Visitor};
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty, TyCtxt, TypeckTables};
 use rustc::ty::layout::LayoutOf;
 use rustc_typeck::hir_ty_to_ty;
diff --git a/clippy_lints/src/unwrap.rs b/clippy_lints/src/unwrap.rs
index 4f7e9e9c0a15..6cafcaeffe97 100644
--- a/clippy_lints/src/unwrap.rs
+++ b/clippy_lints/src/unwrap.rs
@@ -1,5 +1,6 @@
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 
 use crate::utils::{in_macro, match_type, paths, span_lint_and_then, usage::is_potentially_mutated};
 use rustc::hir::intravisit::*;
diff --git a/clippy_lints/src/use_self.rs b/clippy_lints/src/use_self.rs
index 3b6773792986..2ea4497a0d1b 100644
--- a/clippy_lints/src/use_self.rs
+++ b/clippy_lints/src/use_self.rs
@@ -1,5 +1,6 @@
 use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use rustc::hir::intravisit::{walk_path, NestedVisitorMap, Visitor};
 use crate::utils::{in_macro, span_lint_and_then};
diff --git a/clippy_lints/src/utils/higher.rs b/clippy_lints/src/utils/higher.rs
index 3f0243a91c07..d63a2dae8025 100644
--- a/clippy_lints/src/utils/higher.rs
+++ b/clippy_lints/src/utils/higher.rs
@@ -3,6 +3,7 @@
 
 #![deny(missing_docs_in_private_items)]
 
+use if_chain::if_chain;
 use rustc::{hir, ty};
 use rustc::lint::LateContext;
 use syntax::ast;
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index 1888321827d1..64840a39fe1a 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -1,5 +1,6 @@
 use crate::reexport::*;
 use matches::matches;
+use if_chain::if_chain;
 use rustc::hir;
 use rustc::hir::*;
 use rustc::hir::def_id::{DefId, CRATE_DEF_INDEX};
diff --git a/clippy_lints/src/vec.rs b/clippy_lints/src/vec.rs
index 68caa5b44942..a58d73f86daa 100644
--- a/clippy_lints/src/vec.rs
+++ b/clippy_lints/src/vec.rs
@@ -1,6 +1,7 @@
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::ty::{self, Ty};
 use syntax::codemap::Span;
 use crate::utils::{higher, is_copy, snippet, span_lint_and_sugg};
diff --git a/clippy_lints/src/write.rs b/clippy_lints/src/write.rs
index 5112ad86ff0b..0f0bd64cb61d 100644
--- a/clippy_lints/src/write.rs
+++ b/clippy_lints/src/write.rs
@@ -2,6 +2,7 @@ use rustc::hir::map::Node::{NodeImplItem, NodeItem};
 use rustc::hir::*;
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use std::ops::Deref;
 use syntax::ast::LitKind;
 use syntax::ptr;
diff --git a/clippy_lints/src/zero_div_zero.rs b/clippy_lints/src/zero_div_zero.rs
index 0b1b3a413055..7c8af7880ba2 100644
--- a/clippy_lints/src/zero_div_zero.rs
+++ b/clippy_lints/src/zero_div_zero.rs
@@ -1,6 +1,7 @@
 use crate::consts::{constant_simple, Constant};
 use rustc::lint::*;
 use rustc::{declare_lint, lint_array};
+use if_chain::if_chain;
 use rustc::hir::*;
 use crate::utils::span_help_and_lint;