Update rustc-ap-* crates to 407.0.0 (#3447)

2024-11-29 18:23:49 +00:00 · 2019-03-14 22:50:53 +09:00 · 2019-03-14 22:50:53 +09:00 · ce5cccc32c
commit ce5cccc32c
parent 331a0500ce
15 changed files with 293 additions and 396 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "aho-corasick"
-version = "0.6.9"
+version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -30,7 +30,7 @@ name = "atty"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -42,13 +42,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "backtrace"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -58,8 +58,8 @@ name = "backtrace-sys"
 version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -91,24 +91,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "cargo_metadata"
-version = "0.7.1"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "cc"
-version = "1.0.29"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "cfg-if"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
@ -139,9 +139,9 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
 "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@ -152,7 +152,7 @@ name = "crossbeam-utils"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -162,7 +162,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
 "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -172,17 +172,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "dirs"
-version = "1.0.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_users 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "either"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
@ -195,13 +195,13 @@ dependencies = [

 [[package]]
 name = "env_logger"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@ -210,7 +210,7 @@ name = "error-chain"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -218,7 +218,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@ -229,7 +229,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
 "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
 "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@ -259,7 +259,7 @@ name = "itertools"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -267,14 +267,24 @@ name = "itoa"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "jobserver"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "lazy_static"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "libc"
-version = "0.2.48"
+version = "0.2.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
@ -291,7 +301,7 @@ name = "log"
 version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -314,7 +324,7 @@ name = "num_cpus"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -330,27 +340,27 @@ name = "packed_simd"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "parking_lot"
-version = "0.6.4"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "parking_lot_core"
-version = "0.3.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@ -377,26 +387,29 @@ dependencies = [

 [[package]]
 name = "rand"
-version = "0.4.6"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_jitter 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
-name = "rand"
-version = "0.5.6"
+name = "rand_chacha"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@ -412,6 +425,62 @@ name = "rand_core"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "rand_hc"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_isaac"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_jitter"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_os"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_pcg"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_xorshift"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rdrand"
 version = "0.4.0"
@ -435,21 +504,21 @@ dependencies = [

 [[package]]
 name = "redox_users"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "argon2rs 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "regex"
-version = "1.1.0"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex-syntax 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@ -466,20 +535,20 @@ dependencies = [

 [[package]]
 name = "rustc-ap-arena"
-version = "373.0.0"
+version = "407.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rustc-ap-rustc_data_structures 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_data_structures 407.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "rustc-ap-graphviz"
-version = "373.0.0"
+version = "407.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "rustc-ap-rustc_cratesio_shim"
-version = "373.0.0"
+version = "407.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@ -489,84 +558,86 @@ dependencies = [

 [[package]]
 name = "rustc-ap-rustc_data_structures"
-version = "373.0.0"
+version = "407.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "ena 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jobserver 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-graphviz 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_cratesio_shim 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-graphviz 407.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-rustc_cratesio_shim 407.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-ap-serialize 407.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-rayon 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-rayon-core 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "rustc-ap-rustc_errors"
-version = "373.0.0"
+version = "407.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_cratesio_shim 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-rustc_data_structures 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-ap-serialize 373.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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--- a/Cargo.toml
+++ b/Cargo.toml
@ -49,9 +49,9 @@ env_logger = "0.6"
 getopts = "0.2"
 derive-new = "0.5"
 cargo_metadata = "0.7"
-rustc-ap-rustc_target = "373.0.0"
-rustc-ap-syntax = "373.0.0"
-rustc-ap-syntax_pos = "373.0.0"
+rustc-ap-rustc_target = "407.0.0"
+rustc-ap-syntax = "407.0.0"
+rustc-ap-syntax_pos = "407.0.0"
 failure = "0.1.3"
 bytecount = "0.5"
 unicode-width = "0.1.5"
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@ -21,10 +21,10 @@ pub mod file_lines;
 pub mod license;
 pub mod lists;

-/// This macro defines configuration options used in rustfmt. Each option
-/// is defined as follows:
-///
-/// `name: value type, default value, is stable, description;`
+// This macro defines configuration options used in rustfmt. Each option
+// is defined as follows:
+//
+// `name: value type, default value, is stable, description;`
 create_config! {
    // Fundamental stuff
    max_width: usize, 100, true, "Maximum width of each line";
--- a/src/config/options.rs
+++ b/src/config/options.rs
@ -237,10 +237,11 @@ configuration_option_enum! { Heuristics:
 }

 impl Density {
-    pub fn to_list_tactic(self) -> ListTactic {
+    pub fn to_list_tactic(self, len: usize) -> ListTactic {
        match self {
            Density::Compressed => ListTactic::Mixed,
            Density::Tall => ListTactic::HorizontalVertical,
+            Density::Vertical if len == 1 => ListTactic::Horizontal,
            Density::Vertical => ListTactic::Vertical,
        }
    }
@ -443,7 +444,7 @@ pub trait CliOptions {
    fn config_path(&self) -> Option<&Path>;
 }

-/// The edition of the compiler (RFC 2052)
+// The edition of the compiler (RFC 2052)
 configuration_option_enum! { Edition:
    Edition2015: 2015,
    Edition2018: 2018,
--- a/src/formatting.rs
+++ b/src/formatting.rs
@ -83,7 +83,7 @@ fn format_project<T: FormatHandler>(

    // Suppress error output if we have to do any further parsing.
    let silent_emitter = silent_emitter(source_map);
-    parse_session.span_diagnostic = Handler::with_emitter(true, false, silent_emitter);
+    parse_session.span_diagnostic = Handler::with_emitter(true, None, silent_emitter);

    let mut context = FormatContext::new(&krate, report, parse_session, config, handler);

@ -657,7 +657,7 @@ fn silent_emitter(source_map: Rc<SourceMap>) -> Box<EmitterWriter> {
 fn make_parse_sess(source_map: Rc<SourceMap>, config: &Config) -> ParseSess {
    let tty_handler = if config.hide_parse_errors() {
        let silent_emitter = silent_emitter(source_map.clone());
-        Handler::with_emitter(true, false, silent_emitter)
+        Handler::with_emitter(true, None, silent_emitter)
    } else {
        let supports_color = term::stderr().map_or(false, |term| term.supports_color());
        let color_cfg = if supports_color {
@ -665,7 +665,7 @@ fn make_parse_sess(source_map: Rc<SourceMap>, config: &Config) -> ParseSess {
        } else {
            ColorConfig::Never
        };
-        Handler::with_tty_emitter(color_cfg, true, false, Some(source_map.clone()))
+        Handler::with_tty_emitter(color_cfg, true, None, Some(source_map.clone()))
    };

    ParseSess::with_span_handler(tty_handler, source_map)
--- a/src/items.rs
+++ b/src/items.rs
@ -19,10 +19,7 @@ use crate::expr::{
    format_expr, is_empty_block, is_simple_block_stmt, rewrite_assign_rhs, rewrite_assign_rhs_with,
    ExprType, RhsTactics,
 };
-use crate::lists::{
-    definitive_tactic, extract_post_comment, extract_pre_comment, get_comment_end,
-    has_extra_newline, itemize_list, write_list, ListFormatting, ListItem, Separator,
-};
+use crate::lists::{definitive_tactic, itemize_list, write_list, ListFormatting, Separator};
 use crate::macros::{rewrite_macro, MacroPosition};
 use crate::overflow;
 use crate::rewrite::{Rewrite, RewriteContext};
@ -194,7 +191,7 @@ impl<'a> FnSig<'a> {
    ) -> FnSig<'a> {
        FnSig {
            unsafety: method_sig.header.unsafety,
-            is_async: method_sig.header.asyncness,
+            is_async: method_sig.header.asyncness.node,
            constness: method_sig.header.constness.node,
            defaultness: ast::Defaultness::Final,
            abi: method_sig.header.abi,
@ -216,7 +213,7 @@ impl<'a> FnSig<'a> {
                generics,
                abi: fn_header.abi,
                constness: fn_header.constness.node,
-                is_async: fn_header.asyncness,
+                is_async: fn_header.asyncness.node,
                defaultness,
                unsafety: fn_header.unsafety,
                visibility: visibility.clone(),
@ -1833,7 +1830,9 @@ fn is_empty_infer(ty: &ast::Ty, pat_span: Span) -> bool {

 impl Rewrite for ast::Arg {
    fn rewrite(&self, context: &RewriteContext<'_>, shape: Shape) -> Option<String> {
-        if is_named_arg(self) {
+        if let Some(ref explicit_self) = self.to_self() {
+            rewrite_explicit_self(context, explicit_self)
+        } else if is_named_arg(self) {
            let mut result = self
                .pat
                .rewrite(context, Shape::legacy(shape.width, shape.indent))?;
@ -1862,9 +1861,8 @@ impl Rewrite for ast::Arg {
 }

 fn rewrite_explicit_self(
-    explicit_self: &ast::ExplicitSelf,
-    args: &[ast::Arg],
    context: &RewriteContext<'_>,
+    explicit_self: &ast::ExplicitSelf,
 ) -> Option<String> {
    match explicit_self.node {
        ast::SelfKind::Region(lt, m) => {
@ -1880,10 +1878,7 @@ fn rewrite_explicit_self(
                None => Some(format!("&{}self", mut_str)),
            }
        }
-        ast::SelfKind::Explicit(ref ty, _) => {
-            assert!(!args.is_empty(), "&[ast::Arg] shouldn't be empty.");
-
-            let mutability = explicit_self_mutability(&args[0]);
+        ast::SelfKind::Explicit(ref ty, mutability) => {
            let type_str = ty.rewrite(
                context,
                Shape::legacy(context.config.max_width(), Indent::empty()),
@ -1895,23 +1890,7 @@ fn rewrite_explicit_self(
                type_str
            ))
        }
-        ast::SelfKind::Value(_) => {
-            assert!(!args.is_empty(), "&[ast::Arg] shouldn't be empty.");
-
-            let mutability = explicit_self_mutability(&args[0]);
-
-            Some(format!("{}self", format_mutability(mutability)))
-        }
-    }
-}
-
-// Hacky solution caused by absence of `Mutability` in `SelfValue` and
-// `SelfExplicit` variants of `ast::ExplicitSelf_`.
-fn explicit_self_mutability(arg: &ast::Arg) -> ast::Mutability {
-    if let ast::PatKind::Ident(ast::BindingMode::ByValue(mutability), _, _) = arg.pat.node {
-        mutability
-    } else {
-        unreachable!()
+        ast::SelfKind::Value(mutability) => Some(format!("{}self", format_mutability(mutability))),
    }
 }

@ -2048,14 +2027,12 @@ fn rewrite_fn_base(
    let arg_str = rewrite_args(
        context,
        &fd.inputs,
-        fd.get_self().as_ref(),
        one_line_budget,
        multi_line_budget,
        indent,
        arg_indent,
        args_span,
-        fd.variadic,
-        generics_str.contains('\n'),
+        fd.c_variadic,
    )?;

    let put_args_in_block = match context.config.indent_style() {
@ -2272,19 +2249,13 @@ impl WhereClauseOption {
 fn rewrite_args(
    context: &RewriteContext<'_>,
    args: &[ast::Arg],
-    explicit_self: Option<&ast::ExplicitSelf>,
    one_line_budget: usize,
    multi_line_budget: usize,
    indent: Indent,
    arg_indent: Indent,
    span: Span,
    variadic: bool,
-    generics_str_contains_newline: bool,
 ) -> Option<String> {
-    let terminator = ")";
-    let separator = ",";
-    let next_span_start = span.hi();
-
    if args.len() == 0 {
        let comment = context
            .snippet(mk_sp(
@ -2295,144 +2266,29 @@ fn rewrite_args(
            .trim();
        return Some(comment.to_owned());
    }
-
-    let mut arg_item_strs = args
-        .iter()
-        .map(|arg| {
-            arg.rewrite(context, Shape::legacy(multi_line_budget, arg_indent))
-                .unwrap_or_else(|| context.snippet(arg.span()).to_owned())
-        })
-        .collect::<Vec<_>>();
-
-    // Account for sugary self.
-    let mut pre_comment_str = "";
-    let mut post_comment_str = "";
-    let min_args = explicit_self
-        .and_then(|explicit_self| rewrite_explicit_self(explicit_self, args, context))
-        .map_or(1, |self_str| {
-            pre_comment_str = context.snippet(mk_sp(span.lo(), args[0].pat.span.lo()));
-
-            let next_start = if args.len() > 1 {
-                args[1].pat.span().lo()
-            } else {
-                span.hi()
-            };
-            post_comment_str = context.snippet(mk_sp(args[0].ty.span.hi(), next_start));
-
-            arg_item_strs[0] = self_str;
-            2
-        });
-
-    // Comments between args.
-    let mut arg_items = Vec::new();
-    if min_args == 2 {
-        arg_items.push(ListItem::from_str(""));
-    }
-
-    if args.len() >= min_args || variadic {
-        let comment_span_start = if min_args == 2 {
-            let remove_comma_byte_pos = context
-                .snippet_provider
-                .span_after(mk_sp(args[0].ty.span.hi(), args[1].pat.span.lo()), ",");
-            let first_post_and_second_pre_span =
-                mk_sp(remove_comma_byte_pos, args[1].pat.span.lo());
-            if count_newlines(context.snippet(first_post_and_second_pre_span)) > 0 {
-                context
-                    .snippet_provider
-                    .span_after(first_post_and_second_pre_span, "\n")
-            } else {
-                remove_comma_byte_pos
-            }
-        } else {
-            span.lo()
-        };
-
-        enum ArgumentKind<'a> {
-            Regular(&'a ast::Arg),
-            Variadic(BytePos),
-        }
-
-        let variadic_arg = if variadic {
-            let variadic_span = mk_sp(args.last().unwrap().ty.span.hi(), span.hi());
-            let variadic_start =
-                context.snippet_provider.span_after(variadic_span, "...") - BytePos(3);
-            Some(ArgumentKind::Variadic(variadic_start))
-        } else {
-            None
-        };
-
-        let more_items = itemize_list(
+    let arg_items: Vec<_> = itemize_list(
        context.snippet_provider,
-            args[min_args - 1..]
-                .iter()
-                .map(ArgumentKind::Regular)
-                .chain(variadic_arg),
-            terminator,
-            separator,
-            |arg| match *arg {
-                ArgumentKind::Regular(arg) => span_lo_for_arg(arg),
-                ArgumentKind::Variadic(start) => start,
+        args.iter(),
+        ")",
+        ",",
+        |arg| span_lo_for_arg(arg),
+        |arg| arg.ty.span.hi(),
+        |arg| {
+            arg.rewrite(context, Shape::legacy(multi_line_budget, arg_indent))
+                .or_else(|| Some(context.snippet(arg.span()).to_owned()))
        },
-            |arg| match *arg {
-                ArgumentKind::Regular(arg) => arg.ty.span.hi(),
-                ArgumentKind::Variadic(start) => start + BytePos(3),
-            },
-            |arg| match *arg {
-                ArgumentKind::Regular(..) => None,
-                ArgumentKind::Variadic(..) => Some("...".to_owned()),
-            },
-            comment_span_start,
-            next_span_start,
+        span.lo(),
+        span.hi(),
        false,
-        );
-
-        arg_items.extend(more_items);
-    }
-
-    let arg_items_len = arg_items.len();
-    let fits_in_one_line = !generics_str_contains_newline
-        && (arg_items.is_empty()
-            || arg_items_len == 1 && arg_item_strs[0].len() <= one_line_budget);
-
-    for (index, (item, arg)) in arg_items.iter_mut().zip(arg_item_strs).enumerate() {
-        // add pre comment and post comment for first arg(self)
-        if index == 0 && explicit_self.is_some() {
-            let (pre_comment, pre_comment_style) = extract_pre_comment(pre_comment_str);
-            item.pre_comment = pre_comment;
-            item.pre_comment_style = pre_comment_style;
-
-            let comment_end =
-                get_comment_end(post_comment_str, separator, terminator, arg_items_len == 1);
-
-            item.new_lines = has_extra_newline(post_comment_str, comment_end);
-            item.post_comment = extract_post_comment(post_comment_str, comment_end, separator);
-        }
-        item.item = Some(arg);
-    }
-
-    let last_line_ends_with_comment = arg_items
-        .iter()
-        .last()
-        .and_then(|item| item.post_comment.as_ref())
-        .map_or(false, |s| s.trim().starts_with("//"));
-
-    let (indent, trailing_comma) = match context.config.indent_style() {
-        IndentStyle::Block if fits_in_one_line => {
-            (indent.block_indent(context.config), SeparatorTactic::Never)
-        }
-        IndentStyle::Block => (
-            indent.block_indent(context.config),
-            context.config.trailing_comma(),
-        ),
-        IndentStyle::Visual if last_line_ends_with_comment => {
-            (arg_indent, context.config.trailing_comma())
-        }
-        IndentStyle::Visual => (arg_indent, SeparatorTactic::Never),
-    };
+    )
+    .collect();

    let tactic = definitive_tactic(
        &arg_items,
-        context.config.fn_args_density().to_list_tactic(),
+        context
+            .config
+            .fn_args_density()
+            .to_list_tactic(arg_items.len()),
        Separator::Comma,
        one_line_budget,
    );
@ -2440,13 +2296,17 @@ fn rewrite_args(
        DefinitiveListTactic::Horizontal => one_line_budget,
        _ => multi_line_budget,
    };
-
-    debug!("rewrite_args: budget: {}, tactic: {:?}", budget, tactic);
-
+    let indent = match context.config.indent_style() {
+        IndentStyle::Block => indent.block_indent(context.config),
+        IndentStyle::Visual => arg_indent,
+    };
    let trailing_separator = if variadic {
        SeparatorTactic::Never
    } else {
-        trailing_comma
+        match context.config.indent_style() {
+            IndentStyle::Block => context.config.trailing_comma(),
+            IndentStyle::Visual => SeparatorTactic::Never,
+        }
    };
    let fmt = ListFormatting::new(Shape::legacy(budget, indent), context.config)
        .tactic(tactic)
--- a/src/source_map.rs
+++ b/src/source_map.rs
@ -26,7 +26,13 @@ pub trait LineRangeUtils {

 impl<'a> SpanUtils for SnippetProvider<'a> {
    fn span_after(&self, original: Span, needle: &str) -> BytePos {
-        self.opt_span_after(original, needle).expect("bad span")
+        self.opt_span_after(original, needle).unwrap_or_else(|| {
+            panic!(
+                "bad span: `{}`: `{}`",
+                needle,
+                self.span_to_snippet(original).unwrap()
+            )
+        })
    }

    fn span_after_last(&self, original: Span, needle: &str) -> BytePos {
@ -43,7 +49,7 @@ impl<'a> SpanUtils for SnippetProvider<'a> {
    fn span_before(&self, original: Span, needle: &str) -> BytePos {
        self.opt_span_before(original, needle).unwrap_or_else(|| {
            panic!(
-                "bad span: {}: {}",
+                "bad span: `{}`: `{}`",
                needle,
                self.span_to_snippet(original).unwrap()
            )
--- a/src/types.rs
+++ b/src/types.rs
@ -302,24 +302,6 @@ where
        FunctionRetTy::Default(..) => String::new(),
    };

-    // Code for handling variadics is somewhat duplicated for items, but they
-    // are different enough to need some serious refactoring to share code.
-    enum ArgumentKind<T>
-    where
-        T: Deref,
-        <T as Deref>::Target: Rewrite + Spanned,
-    {
-        Regular(T),
-        Variadic(BytePos),
-    }
-
-    let variadic_arg = if variadic {
-        let variadic_start = context.snippet_provider.span_before(span, "...");
-        Some(ArgumentKind::Variadic(variadic_start))
-    } else {
-        None
-    };
-
    let list_shape = if context.use_block_indent() {
        Shape::indented(
            shape.block().indent.block_indent(context.config),
@ -335,21 +317,12 @@ where
    let list_lo = context.snippet_provider.span_after(span, "(");
    let items = itemize_list(
        context.snippet_provider,
-        inputs.map(ArgumentKind::Regular).chain(variadic_arg),
+        inputs,
        ")",
        ",",
-        |arg| match *arg {
-            ArgumentKind::Regular(ref ty) => ty.span().lo(),
-            ArgumentKind::Variadic(start) => start,
-        },
-        |arg| match *arg {
-            ArgumentKind::Regular(ref ty) => ty.span().hi(),
-            ArgumentKind::Variadic(start) => start + BytePos(3),
-        },
-        |arg| match *arg {
-            ArgumentKind::Regular(ref ty) => ty.rewrite(context, list_shape),
-            ArgumentKind::Variadic(_) => Some("...".to_owned()),
-        },
+        |arg| arg.span().lo(),
+        |arg| arg.span().hi(),
+        |arg| arg.rewrite(context, list_shape),
        list_lo,
        span.hi(),
        false,
@ -697,6 +670,7 @@ impl Rewrite for ast::Ty {
            ast::TyKind::ImplTrait(_, ref it) => it
                .rewrite(context, shape)
                .map(|it_str| format!("impl {}", it_str)),
+            ast::TyKind::CVarArgs => Some("...".to_owned()),
            ast::TyKind::Err | ast::TyKind::Typeof(..) => unreachable!(),
        }
    }
@ -741,7 +715,7 @@ fn rewrite_bare_fn(
    let rewrite = format_function_type(
        bare_fn.decl.inputs.iter(),
        &bare_fn.decl.output,
-        bare_fn.decl.variadic,
+        bare_fn.decl.c_variadic,
        span,
        context,
        func_ty_shape,
--- a/src/visitor.rs
+++ b/src/visitor.rs
@ -388,7 +388,7 @@ impl<'b, 'a: 'b> FmtVisitor<'a> {
            ast::ItemKind::Static(..) | ast::ItemKind::Const(..) => {
                self.visit_static(&StaticParts::from_item(item));
            }
-            ast::ItemKind::Fn(ref decl, fn_header, ref generics, ref body) => {
+            ast::ItemKind::Fn(ref decl, ref fn_header, ref generics, ref body) => {
                let inner_attrs = inner_attributes(&item.attrs);
                self.visit_fn(
                    visit::FnKind::ItemFn(item.ident, fn_header, &item.vis, body),
--- a/tests/source/attrib.rs
+++ b/tests/source/attrib.rs
@ -168,7 +168,6 @@ pub fn foo() {}

 // path attrs
 #[clippy::bar]
-#[clippy::bar=foo]
 #[clippy::bar(a, b, c)]
 pub fn foo() {}

--- a/tests/source/doc-attrib.rs
+++ b/tests/source/doc-attrib.rs
@ -47,7 +47,6 @@ pub fn foo() {}

 // path attrs
 #[clippy::bar]
-#[clippy::bar=foo]
 #[clippy::bar(a, b, c)]
 pub fn foo() {}

--- a/tests/target/attrib.rs
+++ b/tests/target/attrib.rs
@ -197,7 +197,6 @@ pub fn foo() {}

 // path attrs
 #[clippy::bar]
-#[clippy::bar=foo]
 #[clippy::bar(a, b, c)]
 pub fn foo() {}

--- a/tests/target/doc-attrib.rs
+++ b/tests/target/doc-attrib.rs
@ -55,7 +55,6 @@ pub fn foo() {}

 // path attrs
 #[clippy::bar]
-#[clippy::bar=foo]
 #[clippy::bar(a, b, c)]
 pub fn foo() {}

--- a/tests/target/trailing_commas.rs
+++ b/tests/target/trailing_commas.rs
@ -23,7 +23,7 @@ impl Trait for T
 where
    T: P,
 {
-    fn f(x: T) -> T
+    fn f(x: T,) -> T
    where
        T: Q + R,
    {