26 files changed, 707 insertions, 176 deletions

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..a77342d72
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+crates/ra_syntax/tests/data/** -text
diff --git a/Cargo.lock b/Cargo.lock
index ddd508b0a..0400c6a94 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "aho-corasick"
-version = "0.6.10"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -13,7 +13,7 @@ name = "ansi_term"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -34,9 +34,9 @@ name = "atty"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (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)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -46,15 +46,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.14"
+version = "0.3.15"
 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 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (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)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -62,8 +62,8 @@ name = "backtrace-sys"
 version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "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)",
+ "cc 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -123,14 +123,14 @@ 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 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.90 (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 = "1.0.31"
+version = "1.0.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -145,7 +145,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -175,8 +175,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -201,12 +201,12 @@ dependencies = [
  "clicolors-control 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "encode_unicode 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -265,7 +265,7 @@ 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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -298,7 +298,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "either"
-version = "1.5.1"
+version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -319,7 +319,7 @@ name = "error-chain"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -327,7 +327,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -338,7 +338,7 @@ 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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -353,19 +353,19 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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)",
- "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "flexi_logger"
-version = "0.11.2"
+version = "0.11.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -380,7 +380,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -388,7 +388,7 @@ name = "fsevent-sys"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -426,7 +426,7 @@ dependencies = [
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "lsp-types 0.56.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -485,7 +485,7 @@ dependencies = [
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "number_prefix 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -495,7 +495,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "inotify-sys 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -503,7 +503,7 @@ name = "inotify-sys"
 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)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -520,10 +520,10 @@ dependencies = [
  "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ron 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "uuid 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -531,7 +531,7 @@ name = "iovec"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -540,7 +540,7 @@ name = "itertools"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -554,7 +554,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -562,9 +562,9 @@ name = "jemalloc-sys"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "fs_extra 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -573,7 +573,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -602,7 +602,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.50"
+version = "0.2.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -635,8 +635,8 @@ dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-derive 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.6 (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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -672,7 +672,7 @@ dependencies = [
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -708,8 +708,8 @@ version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -728,11 +728,11 @@ dependencies = [
  "fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "inotify 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-extras 2.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -742,7 +742,7 @@ 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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -763,7 +763,7 @@ name = "num_cpus"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -796,11 +796,11 @@ name = "parking_lot_core"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (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 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -834,7 +834,7 @@ dependencies = [
  "pest_meta 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -869,7 +869,7 @@ dependencies = [
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -924,13 +924,14 @@ version = "0.1.0"
 dependencies = [
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "flexi_logger 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flexi_logger 0.11.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "indicatif 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "join_to_string 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_batch 0.1.0",
  "ra_db 0.1.0",
  "ra_hir 0.1.0",
  "ra_ide_api 0.1.0",
+ "ra_prof 0.1.0",
  "ra_syntax 0.1.0",
  "tools 0.1.0",
 ]
@@ -944,7 +945,7 @@ dependencies = [
  "ra_syntax 0.1.0",
  "relative-path 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "salsa 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "salsa 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "test_utils 0.1.0",
 ]
 
@@ -962,7 +963,7 @@ version = "0.1.0"
 dependencies = [
  "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "ena 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "flexi_logger 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flexi_logger 0.11.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "insta 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "join_to_string 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -970,6 +971,7 @@ dependencies = [
  "ra_arena 0.1.0",
  "ra_db 0.1.0",
  "ra_mbe 0.1.0",
+ "ra_prof 0.1.0",
  "ra_syntax 0.1.0",
  "ra_tt 0.1.0",
  "relative-path 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1011,20 +1013,21 @@ dependencies = [
  "crossbeam-channel 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "flexi_logger 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flexi_logger 0.11.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "gen_lsp_server 0.1.0",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "lsp-types 0.56.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_arena 0.1.0",
  "ra_ide_api 0.1.0",
+ "ra_prof 0.1.0",
  "ra_project_model 0.1.0",
  "ra_syntax 0.1.0",
  "ra_text_edit 0.1.0",
  "ra_vfs 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "relative-path 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "test_utils 0.1.0",
@@ -1037,6 +1040,7 @@ dependencies = [
 name = "ra_mbe"
 version = "0.1.0"
 dependencies = [
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_parser 0.1.0",
  "ra_syntax 0.1.0",
  "ra_tt 0.1.0",
@@ -1051,6 +1055,13 @@ dependencies = [
 ]
 
 [[package]]
+name = "ra_prof"
+version = "0.1.0"
+dependencies = [
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "ra_project_model"
 version = "0.1.0"
 dependencies = [
@@ -1061,7 +1072,7 @@ dependencies = [
  "ra_db 0.1.0",
  "relative-path 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "test_utils 0.1.0",
  "walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1121,7 +1132,7 @@ version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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)",
+ "libc 0.2.51 (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)",
@@ -1130,7 +1141,7 @@ dependencies = [
  "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)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1176,9 +1187,9 @@ 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)",
+ "libc 0.2.51 (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)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1188,10 +1199,10 @@ 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)",
+ "libc 0.2.51 (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)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1217,7 +1228,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon-core 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1228,7 +1239,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1242,7 +1253,7 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.51"
+version = "0.1.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1250,24 +1261,24 @@ name = "redox_termios"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex"
-version = "1.1.2"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.7.3 (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)",
+ "regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.5"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1283,7 +1294,7 @@ name = "remove_dir_all"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1293,7 +1304,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1335,7 +1346,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "salsa"
-version = "0.11.1"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "derive-new 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1344,19 +1355,19 @@ dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "salsa-macros 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "salsa-macros 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "salsa-macros"
-version = "0.11.1"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1378,7 +1389,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1388,20 +1399,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.89"
+version = "1.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.89"
+version = "1.0.90"
 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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1411,7 +1422,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1421,7 +1432,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1459,7 +1470,7 @@ name = "smol_str"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1479,7 +1490,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "syn"
-version = "0.15.29"
+version = "0.15.30"
 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)",
@@ -1494,7 +1505,7 @@ 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 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1504,11 +1515,11 @@ version = "3.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "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)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1523,8 +1534,8 @@ dependencies = [
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "slug 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "unic-segment 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1547,8 +1558,8 @@ name = "termion"
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1557,7 +1568,7 @@ name = "termios"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1575,7 +1586,7 @@ name = "text_unit"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1615,9 +1626,9 @@ name = "time"
 version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1744,7 +1755,7 @@ name = "url_serde"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1755,11 +1766,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "uuid"
-version = "0.7.3"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1778,7 +1789,7 @@ version = "2.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "same-file 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1789,7 +1800,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "winapi"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1811,7 +1822,7 @@ name = "winapi-util"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1837,13 +1848,13 @@ dependencies = [
 ]
 
 [metadata]
-"checksum aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "81ce3d38065e618af2d7b77e10c5ad9a069859b4be3c2250f674af3840d9c8a5"
+"checksum aho-corasick 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "e6f484ae0c99fec2e858eb6134949117399f222608d84cadb3f58c1f97c2364c"
 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 "checksum arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0d382e583f07208808f6b1249e60848879ba3543f57c32277bf52d69c2f0f0ee"
 "checksum arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "92c7fb76bc8826a8b33b4ee5bb07a247a81e76764ab4d55e8f73e3a4d8808c71"
 "checksum atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
 "checksum autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a6d640bee2da49f60a4068a7fae53acde8982514ab7bae8b8cea9e88cbcfd799"
-"checksum backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "cd5a90e2b463010cd0e0ce9a11d4a9d5d58d9f41d4a6ba3dcaf9e68b466e88b4"
+"checksum backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "f106c02a3604afcdc0df5d36cc47b44b55917dbaf3d808f71c163a0ddba64637"
 "checksum backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)" = "797c830ac25ccc92a7f8a7b9862bde440715531514594a6154e3d4a54dd769b6"
 "checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 "checksum bit-set 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e84c238982c4b1e1ee668d136c510c67a13465279c0cb367ea6baf6310620a80"
@@ -1854,7 +1865,7 @@ dependencies = [
 "checksum byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "560c32574a12a89ecd91f5e742165893f86e3ab98d21f8ea548658eb9eef5f40"
 "checksum byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a019b10a2a7cdeb292db131fc8113e57ea2a908f6e7894b0c3c671893b65dbeb"
 "checksum cargo_metadata 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "178d62b240c34223f265a4c1e275e37d62da163d421fc8d7f7e3ee340f803c57"
-"checksum cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)" = "c9ce8bb087aacff865633f0bd5aeaed910fe2fe55b55f4739527f2e023a2e53d"
+"checksum cc 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)" = "30f813bf45048a18eda9190fd3c6b78644146056740c43172a5a3699118588fd"
 "checksum cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "11d43355396e872eefb45ce6342e4374ed7bc2b3a502d1b28e36d6e23c05d1f4"
 "checksum chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
 "checksum ci_info 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e5e881307a989a3a5e20d52a32cc05950e3c2178cccfcc9428271a6cde09f902"
@@ -1874,7 +1885,7 @@ dependencies = [
 "checksum digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "03b072242a8cbaf9c145665af9d250c59af3b958f83ed6824e13533cf76d5b90"
 "checksum drop_bomb 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "69b26e475fd29098530e709294e94e661974c851aed42512793f120fed4e199f"
 "checksum dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6d301140eb411af13d3115f9a562c85cc6b541ade9dfa314132244aaee7489dd"
-"checksum either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c67353c641dc847124ea1902d69bd753dee9bb3beff9aa3662ecf86c971d1fac"
+"checksum either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "5527cfe0d098f36e3f8839852688e63c8fff1c90b2b405aef730615f9a7bcf7b"
 "checksum ena 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f56c93cc076508c549d9bb747f79aa9b4eb098be7b8cad8830c3137ef52d1e00"
 "checksum encode_unicode 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "90b2c9496c001e8cb61827acdefad780795c42264c137744cae6f7d9e3450abd"
 "checksum error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "07e791d3be96241c77c43846b665ef1384606da2cd2a48730abe606a12906e02"
@@ -1882,7 +1893,7 @@ dependencies = [
 "checksum failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "ea1063915fd7ef4309e222a5a07cf9c319fb9c7836b1f89b85458672dbb127e1"
 "checksum fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 "checksum filetime 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a2df5c1a8c4be27e7707789dc42ae65976e60b394afd293d1419ab915833e646"
-"checksum flexi_logger 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "005c01dd6942ca46283b7304d14c6d04ec2c87a62f6e62e17c06fb812a574f4a"
+"checksum flexi_logger 0.11.4 (registry+https://github.com/rust-lang/crates.io-index)" = "73de04baa435682b03677bb28f7b3e9d72b0489a551da5ba413c9b29f7979a19"
 "checksum fs_extra 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5f2a4a2034423744d2cc7ca2068453168dcdb82c438419e639a26bd87839c674"
 "checksum fsevent 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)" = "c4bbbf71584aeed076100b5665ac14e3d85eeb31fdbb45fbd41ef9a682b5ec05"
 "checksum fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "1a772d36c338d07a032d5375a36f15f9a7043bf0cb8ce7cee658e037c6032874"
@@ -1911,7 +1922,7 @@ dependencies = [
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
 "checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
-"checksum libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)" = "aab692d7759f5cd8c859e169db98ae5b52c924add2af5fbbca11d12fefb567c1"
+"checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
 "checksum linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
 "checksum lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "62ebf1391f6acad60e5c8b43706dde4582df75c06698ab44511d15016bc2442c"
 "checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
@@ -1957,10 +1968,10 @@ dependencies = [
 "checksum rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "373814f27745b2686b350dd261bfd24576a6fb0e2c5919b3a2b6005f820b0473"
 "checksum rayon-core 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b055d1e92aba6877574d8fe604a63c8b5df60f60e5982bf7ccbb1338ea527356"
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
-"checksum redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)" = "423e376fffca3dfa06c9e9790a9ccd282fafb3cc6e6397d01dbf64f9bacc6b85"
+"checksum redox_syscall 0.1.52 (registry+https://github.com/rust-lang/crates.io-index)" = "d32b3053e5ced86e4bc0411fec997389532bf56b000e66cb4884eeeb41413d69"
 "checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
-"checksum regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "53ee8cfdddb2e0291adfb9f13d31d3bbe0a03c9a402c01b1e24188d86c35b24f"
-"checksum regex-syntax 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "8c2f35eedad5295fdf00a63d7d4b238135723f92b434ec06774dad15c7ab0861"
+"checksum regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "559008764a17de49a3146b234641644ed37d118d1ef641a0bb573d146edc6ce0"
+"checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96"
 "checksum relative-path 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0e7790c7f1cc73d831d28dc5a7deb316a006e7848e6a7f467cdb10a0a9e0fb1c"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum ron 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "17f52a24414403f81528b67488cf8edc4eda977d3af1646bb6b106a600ead78f"
@@ -1969,14 +1980,14 @@ dependencies = [
 "checksum rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7540fc8b0c49f096ee9c961cda096467dce8084bec6bdca2fc83895fd9b28cb8"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "eb9e9b8cde282a9fe6a42dd4681319bfb63f121b8a8ee9439c6f4107e58a46f7"
-"checksum salsa 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "94f14bbb013866db2fbeceb97ed82cf35f42020edd39d35268f0b11f89399c79"
-"checksum salsa-macros 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1ad27cbae189e9739a96e469d37c6a6deafec36f1282d4fdf4681eae67c9dd39"
+"checksum salsa 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "249290390580a2ccdc1aa8256989733978a7c3e11e508abc529055ae4866e3a3"
+"checksum salsa-macros 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9120ba92eda59ebd3a39e8245531df9a3805468bf38fe57fdfc30f14d0fdbea9"
 "checksum same-file 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8f20c4be53a8a1ff4c1f1b2bd14570d2f634628709752f0702ecdd2b3f9a5267"
 "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "92514fb95f900c9b5126e32d020f5c6d40564c27a5ea6d1d7d9f157a96623560"
-"checksum serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6eabf4b5914e88e24eea240bb7c9f9a2cbc1bbbe8d961d381975ec3c6b806c"
+"checksum serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "aa5f7c20820475babd2c077c3ab5f8c77a31c15e16ea38687b4c02d3e48680f4"
+"checksum serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "58fc82bec244f168b23d1963b45c8bf5726e9a15a9d146a067f9081aeed2de79"
 "checksum serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)" = "5a23aa71d4a4d43fdbfaac00eff68ba8a06a51759a89ac3304323e800c4dd40d"
 "checksum serde_yaml 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)" = "0887a8e097a69559b56aa2526bf7aff7c3048cf627dff781f0b56a6001534593"
 "checksum sha-1 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "51b9d1f3b5de8a167ab06834a7c883bd197f2191e1dda1a22d9ccfeedbf9aded"
@@ -1987,7 +1998,7 @@ dependencies = [
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 "checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
 "checksum superslice 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ab16ced94dbd8a46c82fd81e3ed9a8727dac2977ea869d217bcc4ea1f122e81f"
-"checksum syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)" = "1825685f977249735d510a242a6727b46efe914bb67e38d30c071b1b72b1d5c2"
+"checksum syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)" = "66c8865bf5a7cbb662d8b011950060b3c8743dca141b054bf7195b20d314d8e2"
 "checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
 "checksum tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b86c784c88d98c801132806dadd3819ed29d8600836c4088e855cdf3e178ed8a"
 "checksum tera 0.11.20 (registry+https://github.com/rust-lang/crates.io-index)" = "4b505279e19d8f7d24b1a9dc58327c9c36174b1a2c7ebdeac70792d017cb64f3"
@@ -2017,12 +2028,12 @@ dependencies = [
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "74e7d099f1ee52f823d4bdd60c93c3602043c728f5db3b97bdb548467f7bddea"
 "checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
-"checksum uuid 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "600ef8213e9f8a0ac1f876e470e90780ae0478eabce7f76aff41b0f4ef0fd5c0"
+"checksum uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "90dbc611eb48397705a6b0f6e917da23ae517e4d127123d2cf7674206627d32a"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "9d9d7ed3431229a144296213105a390676cc49c9b6a72bd19f3176c98e129fa1"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-"checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
+"checksum winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f10e386af2b13e47c89e7236a7a14a086791a2b88ebad6df9bf42040195cf770"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9"
diff --git a/crates/ra_batch/src/lib.rs b/crates/ra_batch/src/lib.rs
index 3bbcdb0b8..5bb47afb2 100644
--- a/crates/ra_batch/src/lib.rs
+++ b/crates/ra_batch/src/lib.rs
@@ -126,10 +126,7 @@ mod tests {
 
     #[test]
     fn test_loading_rust_analyzer() {
-        let mut path = std::env::current_exe().unwrap();
-        while !path.join("Cargo.toml").is_file() {
-            path = path.parent().unwrap().to_owned();
-        }
+        let path = Path::new(env!("CARGO_MANIFEST_DIR")).parent().unwrap().parent().unwrap();
         let (db, roots) = BatchDatabase::load_cargo(path).unwrap();
         let mut n_crates = 0;
         for root in roots {
diff --git a/crates/ra_cli/Cargo.toml b/crates/ra_cli/Cargo.toml
index 467628236..328b2436f 100644
--- a/crates/ra_cli/Cargo.toml
+++ b/crates/ra_cli/Cargo.toml
@@ -18,3 +18,4 @@ tools = { path = "../tools" }
 ra_batch = { path = "../ra_batch" }
 ra_hir = { path = "../ra_hir" }
 ra_db = { path = "../ra_db" }
+ra_prof = { path = "../ra_prof" }
diff --git a/crates/ra_cli/src/main.rs b/crates/ra_cli/src/main.rs
index 1f2750d89..45555be6e 100644
--- a/crates/ra_cli/src/main.rs
+++ b/crates/ra_cli/src/main.rs
@@ -1,12 +1,13 @@
 mod analysis_stats;
 
-use std::{fs, io::Read, path::Path, time::Instant};
+use std::{fs, io::Read, path::Path};
 
 use clap::{App, Arg, SubCommand};
 use ra_ide_api::file_structure;
 use ra_syntax::{SourceFile, TreeArc, AstNode};
 use tools::collect_tests;
 use flexi_logger::Logger;
+use ra_prof::profile;
 
 type Result<T> = ::std::result::Result<T, failure::Error>;
 
@@ -27,13 +28,11 @@ fn main() -> Result<()> {
         .get_matches();
     match matches.subcommand() {
         ("parse", Some(matches)) => {
-            let start = Instant::now();
+            let _p = profile("parsing");
             let file = file()?;
-            let elapsed = start.elapsed();
             if !matches.is_present("no-dump") {
                 println!("{}", file.syntax().debug_dump());
             }
-            eprintln!("parsing: {:?}", elapsed);
             ::std::mem::forget(file);
         }
         ("symbols", _) => {
diff --git a/crates/ra_db/Cargo.toml b/crates/ra_db/Cargo.toml
index 581cd32fd..08aef9bf5 100644
--- a/crates/ra_db/Cargo.toml
+++ b/crates/ra_db/Cargo.toml
@@ -5,7 +5,7 @@ version = "0.1.0"
 authors = ["rust-analyzer developers"]
 
 [dependencies]
-salsa = "0.11.1"
+salsa = "0.12.0"
 relative-path = "0.4.0"
 rustc-hash = "1.0"
 parking_lot = "0.7.0"
diff --git a/crates/ra_hir/Cargo.toml b/crates/ra_hir/Cargo.toml
index 501308acc..a2858dad9 100644
--- a/crates/ra_hir/Cargo.toml
+++ b/crates/ra_hir/Cargo.toml
@@ -19,6 +19,7 @@ ra_db = { path = "../ra_db" }
 mbe = { path = "../ra_mbe", package = "ra_mbe" }
 tt = { path = "../ra_tt", package = "ra_tt" }
 test_utils = { path = "../test_utils" }
+ra_prof = {path = "../ra_prof" }
 
 [dev-dependencies]
 flexi_logger = "0.11.0"
diff --git a/crates/ra_hir/src/nameres.rs b/crates/ra_hir/src/nameres.rs
index 6f049acfc..4ae04514a 100644
--- a/crates/ra_hir/src/nameres.rs
+++ b/crates/ra_hir/src/nameres.rs
@@ -60,6 +60,7 @@ use ra_arena::{Arena, RawId, impl_arena_id};
 use ra_db::{FileId, Edition};
 use test_utils::tested_by;
 use ra_syntax::ast;
+use ra_prof::profile;
 
 use crate::{
     ModuleDef, Name, Crate, Module,
@@ -181,7 +182,7 @@ enum ReachedFixedPoint {
 
 impl CrateDefMap {
     pub(crate) fn crate_def_map_query(db: &impl DefDatabase, krate: Crate) -> Arc<CrateDefMap> {
-        let start = std::time::Instant::now();
+        let _p = profile("crate_def_map_query");
         let def_map = {
             let edition = krate.edition(db);
             let mut modules: Arena<CrateModuleId, ModuleData> = Arena::default();
@@ -198,7 +199,6 @@ impl CrateDefMap {
             }
         };
         let def_map = collector::collect_defs(db, def_map);
-        log::info!("crate_def_map_query: {:?}", start.elapsed());
         Arc::new(def_map)
     }
 
diff --git a/crates/ra_lsp_server/Cargo.toml b/crates/ra_lsp_server/Cargo.toml
index d82410700..bc181e4eb 100644
--- a/crates/ra_lsp_server/Cargo.toml
+++ b/crates/ra_lsp_server/Cargo.toml
@@ -27,6 +27,7 @@ ra_ide_api = { path = "../ra_ide_api" }
 ra_arena = { path = "../ra_arena" }
 gen_lsp_server = { path = "../gen_lsp_server" }
 ra_project_model = { path = "../ra_project_model" }
+ra_prof = { path = "../ra_prof" }
 
 [dev-dependencies]
 tempfile = "3"
diff --git a/crates/ra_lsp_server/src/main.rs b/crates/ra_lsp_server/src/main.rs
index 5a2905207..eb4091a3d 100644
--- a/crates/ra_lsp_server/src/main.rs
+++ b/crates/ra_lsp_server/src/main.rs
@@ -3,6 +3,7 @@ use flexi_logger::{Duplicate, Logger};
 use gen_lsp_server::{run_server, stdio_transport};
 
 use ra_lsp_server::{Result, InitializationOptions};
+use ra_prof;
 
 fn main() -> Result<()> {
     ::std::env::set_var("RUST_BACKTRACE", "short");
@@ -11,6 +12,15 @@ fn main() -> Result<()> {
         Ok(ref v) if v == "1" => logger.log_to_file().directory("log").start()?,
         _ => logger.start()?,
     };
+    let prof_depth = match ::std::env::var("RA_PROFILE_DEPTH") {
+        Ok(ref d) => d.parse()?,
+        _ => 0,
+    };
+    let profile_allowed = match ::std::env::var("RA_PROFILE") {
+        Ok(ref p) => p.split(";").map(String::from).collect(),
+        _ => Vec::new(),
+    };
+    ra_prof::set_filter(ra_prof::Filter::new(prof_depth, profile_allowed));
     log::info!("lifecycle: server started");
     match ::std::panic::catch_unwind(main_inner) {
         Ok(res) => {
diff --git a/crates/ra_lsp_server/src/main_loop.rs b/crates/ra_lsp_server/src/main_loop.rs
index eecf278a8..82410bee3 100644
--- a/crates/ra_lsp_server/src/main_loop.rs
+++ b/crates/ra_lsp_server/src/main_loop.rs
@@ -24,6 +24,7 @@ use crate::{
     Result,
     InitializationOptions,
 };
+use ra_prof::profile;
 
 #[derive(Debug, Fail)]
 #[fail(display = "Language Server request failed with {}. ({})", code, message)]
@@ -181,7 +182,7 @@ fn main_loop_inner(
             recv(libdata_receiver) -> data => Event::Lib(data.unwrap())
         };
         log::info!("loop_turn = {:?}", event);
-        let start = std::time::Instant::now();
+        let _p = profile("loop_turn");
         let mut state_changed = false;
         match event {
             Event::Task(task) => on_task(task, msg_sender, pending_requests),
@@ -235,10 +236,9 @@ fn main_loop_inner(
             in_flight_libraries += 1;
             let sender = libdata_sender.clone();
             pool.execute(move || {
-                let start = ::std::time::Instant::now();
                 log::info!("indexing {:?} ... ", root);
+                let _p = profile(&format!("indexed {:?}", root));
                 let data = LibraryData::prepare(root, files);
-                log::info!("indexed {:?} {:?}", start.elapsed(), root);
                 sender.send(data).unwrap();
             });
         }
@@ -266,7 +266,6 @@ fn main_loop_inner(
                 subs.subscriptions(),
             )
         }
-        log::info!("loop_turn = {:?}", start.elapsed());
     }
 }
 
diff --git a/crates/ra_mbe/Cargo.toml b/crates/ra_mbe/Cargo.toml
index 6e785f570..1d0c2a340 100644
--- a/crates/ra_mbe/Cargo.toml
+++ b/crates/ra_mbe/Cargo.toml
@@ -8,5 +8,5 @@ authors = ["rust-analyzer developers"]
 ra_syntax = { path = "../ra_syntax" }
 ra_parser = { path = "../ra_parser" }
 tt = { path = "../ra_tt", package = "ra_tt" }
-
+itertools = "0.8.0"
 rustc-hash = "1.0.0"
diff --git a/crates/ra_mbe/src/lib.rs b/crates/ra_mbe/src/lib.rs
index 93246f54a..4203929d4 100644
--- a/crates/ra_mbe/src/lib.rs
+++ b/crates/ra_mbe/src/lib.rs
@@ -167,7 +167,7 @@ impl_froms!(TokenTree: Leaf, Subtree);
     )
     }
 
-    fn create_rules(macro_definition: &str) -> MacroRules {
+    pub(crate) fn create_rules(macro_definition: &str) -> MacroRules {
         let source_file = ast::SourceFile::parse(macro_definition);
         let macro_definition =
             source_file.syntax().descendants().find_map(ast::MacroCall::cast).unwrap();
@@ -176,7 +176,7 @@ impl_froms!(TokenTree: Leaf, Subtree);
         crate::MacroRules::parse(&definition_tt).unwrap()
     }
 
-    fn expand(rules: &MacroRules, invocation: &str) -> tt::Subtree {
+    pub(crate) fn expand(rules: &MacroRules, invocation: &str) -> tt::Subtree {
         let source_file = ast::SourceFile::parse(invocation);
         let macro_invocation =
             source_file.syntax().descendants().find_map(ast::MacroCall::cast).unwrap();
@@ -186,7 +186,7 @@ impl_froms!(TokenTree: Leaf, Subtree);
         rules.expand(&invocation_tt).unwrap()
     }
 
-    fn assert_expansion(rules: &MacroRules, invocation: &str, expansion: &str) {
+    pub(crate) fn assert_expansion(rules: &MacroRules, invocation: &str, expansion: &str) {
         let expanded = expand(rules, invocation);
         assert_eq!(expanded.to_string(), expansion);
     }
@@ -337,4 +337,46 @@ SOURCE_FILE@[0; 40)
         );
     }
 
+    #[test]
+    fn expand_literals_to_token_tree() {
+        fn to_subtree(tt: &tt::TokenTree) -> &tt::Subtree {
+            if let tt::TokenTree::Subtree(subtree) = tt {
+                return &subtree;
+            }
+            unreachable!("It is not a subtree");
+        }
+
+        fn to_literal(tt: &tt::TokenTree) -> &tt::Literal {
+            if let tt::TokenTree::Leaf(tt::Leaf::Literal(lit)) = tt {
+                return lit;
+            }
+            unreachable!("It is not a literal");
+        }
+
+        let rules = create_rules(
+            r#"
+            macro_rules! literals {
+                ($i:ident) => {
+                    {
+                        let a = 'c';
+                        let c = 1000;
+                        let f = 12E+99_f64;
+                        let s = "rust1";
+                    }
+                }
+            }
+            "#,
+        );
+        let expansion = expand(&rules, "literals!(foo)");
+        let stm_tokens = &to_subtree(&expansion.token_trees[0]).token_trees;
+
+        // [let] [a] [=] ['c'] [;]
+        assert_eq!(to_literal(&stm_tokens[3]).text, "'c'");
+        // [let] [c] [=] [1000] [;]
+        assert_eq!(to_literal(&stm_tokens[5 + 3]).text, "1000");
+        // [let] [f] [=] [12E+99_f64] [;]
+        assert_eq!(to_literal(&stm_tokens[10 + 3]).text, "12E+99_f64");
+        // [let] [s] [=] ["rust1"] [;]
+        assert_eq!(to_literal(&stm_tokens[15 + 3]).text, "\"rust1\"");
+    }
 }
diff --git a/crates/ra_mbe/src/syntax_bridge.rs b/crates/ra_mbe/src/syntax_bridge.rs
index 05f9817da..139a0fd33 100644
--- a/crates/ra_mbe/src/syntax_bridge.rs
+++ b/crates/ra_mbe/src/syntax_bridge.rs
@@ -1,7 +1,7 @@
 use ra_parser::{TokenSource, TreeSink, ParseError};
 use ra_syntax::{
     AstNode, SyntaxNode, TextRange, SyntaxKind, SmolStr, SyntaxTreeBuilder, TreeArc, SyntaxElement,
-    ast, SyntaxKind::*, TextUnit
+    ast, SyntaxKind::*, TextUnit, classify_literal
 };
 
 /// Maps `tt::TokenId` to the relative range of the original token.
@@ -103,16 +103,63 @@ fn convert_tt(
     Some(res)
 }
 
+#[derive(Debug)]
 struct TtTokenSource {
     tokens: Vec<TtToken>,
 }
 
+#[derive(Debug)]
 struct TtToken {
     kind: SyntaxKind,
     is_joint_to_next: bool,
     text: SmolStr,
 }
 
+// Some helper functions
+fn to_punct(tt: &tt::TokenTree) -> Option<&tt::Punct> {
+    if let tt::TokenTree::Leaf(tt::Leaf::Punct(pp)) = tt {
+        return Some(pp);
+    }
+    None
+}
+
+struct TokenPeek<'a, I>
+where
+    I: Iterator<Item = &'a tt::TokenTree>,
+{
+    iter: itertools::MultiPeek<I>,
+}
+
+impl<'a, I> TokenPeek<'a, I>
+where
+    I: Iterator<Item = &'a tt::TokenTree>,
+{
+    fn next(&mut self) -> Option<&tt::TokenTree> {
+        self.iter.next()
+    }
+
+    fn current_punct2(&mut self, p: &tt::Punct) -> Option<((char, char), bool)> {
+        if p.spacing != tt::Spacing::Joint {
+            return None;
+        }
+
+        self.iter.reset_peek();
+        let p1 = to_punct(self.iter.peek()?)?;
+        Some(((p.char, p1.char), p1.spacing == tt::Spacing::Joint))
+    }
+
+    fn current_punct3(&mut self, p: &tt::Punct) -> Option<((char, char, char), bool)> {
+        self.current_punct2(p).and_then(|((p0, p1), last_joint)| {
+            if !last_joint {
+                None
+            } else {
+                let p2 = to_punct(*self.iter.peek()?)?;
+                Some(((p0, p1, p2.char), p2.spacing == tt::Spacing::Joint))
+            }
+        })
+    }
+}
+
 impl TtTokenSource {
     fn new(tt: &tt::Subtree) -> TtTokenSource {
         let mut res = TtTokenSource { tokens: Vec::new() };
@@ -121,38 +168,53 @@ impl TtTokenSource {
     }
     fn convert_subtree(&mut self, sub: &tt::Subtree) {
         self.push_delim(sub.delimiter, false);
-        sub.token_trees.iter().for_each(|tt| self.convert_tt(tt));
+        let mut peek = TokenPeek { iter: itertools::multipeek(sub.token_trees.iter()) };
+        while let Some(tt) = peek.iter.next() {
+            self.convert_tt(tt, &mut peek);
+        }
         self.push_delim(sub.delimiter, true)
     }
-    fn convert_tt(&mut self, tt: &tt::TokenTree) {
+
+    fn convert_tt<'a, I>(&mut self, tt: &tt::TokenTree, iter: &mut TokenPeek<'a, I>)
+    where
+        I: Iterator<Item = &'a tt::TokenTree>,
+    {
         match tt {
-            tt::TokenTree::Leaf(token) => self.convert_token(token),
+            tt::TokenTree::Leaf(token) => self.convert_token(token, iter),
             tt::TokenTree::Subtree(sub) => self.convert_subtree(sub),
         }
     }
-    fn convert_token(&mut self, token: &tt::Leaf) {
+
+    fn convert_token<'a, I>(&mut self, token: &tt::Leaf, iter: &mut TokenPeek<'a, I>)
+    where
+        I: Iterator<Item = &'a tt::TokenTree>,
+    {
         let tok = match token {
             tt::Leaf::Literal(l) => TtToken {
-                kind: SyntaxKind::INT_NUMBER, // FIXME
+                kind: classify_literal(&l.text).unwrap().kind,
                 is_joint_to_next: false,
                 text: l.text.clone(),
             },
             tt::Leaf::Punct(p) => {
-                let kind = match p.char {
-                    // lexer may produce combpund tokens for these ones
-                    '.' => DOT,
-                    ':' => COLON,
-                    '=' => EQ,
-                    '!' => EXCL,
-                    '-' => MINUS,
-                    c => SyntaxKind::from_char(c).unwrap(),
-                };
-                let text = {
-                    let mut buf = [0u8; 4];
-                    let s: &str = p.char.encode_utf8(&mut buf);
-                    SmolStr::new(s)
-                };
-                TtToken { kind, is_joint_to_next: p.spacing == tt::Spacing::Joint, text }
+                if let Some(tt) = Self::convert_multi_char_punct(p, iter) {
+                    tt
+                } else {
+                    let kind = match p.char {
+                        // lexer may produce combpund tokens for these ones
+                        '.' => DOT,
+                        ':' => COLON,
+                        '=' => EQ,
+                        '!' => EXCL,
+                        '-' => MINUS,
+                        c => SyntaxKind::from_char(c).unwrap(),
+                    };
+                    let text = {
+                        let mut buf = [0u8; 4];
+                        let s: &str = p.char.encode_utf8(&mut buf);
+                        SmolStr::new(s)
+                    };
+                    TtToken { kind, is_joint_to_next: p.spacing == tt::Spacing::Joint, text }
+                }
             }
             tt::Leaf::Ident(ident) => {
                 let kind = SyntaxKind::from_keyword(ident.text.as_str()).unwrap_or(IDENT);
@@ -161,6 +223,64 @@ impl TtTokenSource {
         };
         self.tokens.push(tok)
     }
+
+    fn convert_multi_char_punct<'a, I>(
+        p: &tt::Punct,
+        iter: &mut TokenPeek<'a, I>,
+    ) -> Option<TtToken>
+    where
+        I: Iterator<Item = &'a tt::TokenTree>,
+    {
+        if let Some((m, is_joint_to_next)) = iter.current_punct3(p) {
+            if let Some((kind, text)) = match m {
+                ('<', '<', '=') => Some((SHLEQ, "<<=")),
+                ('>', '>', '=') => Some((SHREQ, ">>=")),
+                ('.', '.', '.') => Some((DOTDOTDOT, "...")),
+                ('.', '.', '=') => Some((DOTDOTEQ, "..=")),
+                _ => None,
+            } {
+                iter.next();
+                iter.next();
+                return Some(TtToken { kind, is_joint_to_next, text: text.into() });
+            }
+        }
+
+        if let Some((m, is_joint_to_next)) = iter.current_punct2(p) {
+            if let Some((kind, text)) = match m {
+                ('<', '<') => Some((SHL, "<<")),
+                ('>', '>') => Some((SHR, ">>")),
+
+                ('|', '|') => Some((PIPEPIPE, "||")),
+                ('&', '&') => Some((AMPAMP, "&&")),
+                ('%', '=') => Some((PERCENTEQ, "%=")),
+                ('*', '=') => Some((STAREQ, "*=")),
+                ('/', '=') => Some((SLASHEQ, "/=")),
+                ('^', '=') => Some((CARETEQ, "^=")),
+
+                ('&', '=') => Some((AMPEQ, "&=")),
+                ('|', '=') => Some((PIPEEQ, "|=")),
+                ('-', '=') => Some((MINUSEQ, "-=")),
+                ('+', '=') => Some((PLUSEQ, "+=")),
+                ('>', '=') => Some((GTEQ, ">=")),
+                ('<', '=') => Some((LTEQ, "<=")),
+
+                ('-', '>') => Some((THIN_ARROW, "->")),
+                ('!', '=') => Some((NEQ, "!=")),
+                ('=', '>') => Some((FAT_ARROW, "=>")),
+                ('=', '=') => Some((EQEQ, "==")),
+                ('.', '.') => Some((DOTDOT, "..")),
+                (':', ':') => Some((COLONCOLON, "::")),
+
+                _ => None,
+            } {
+                iter.next();
+                return Some(TtToken { kind, is_joint_to_next, text: text.into() });
+            }
+        }
+
+        None
+    }
+
     fn push_delim(&mut self, d: tt::Delimiter, closing: bool) {
         let (kinds, texts) = match d {
             tt::Delimiter::Parenthesis => ([L_PAREN, R_PAREN], "()"),
@@ -237,3 +357,44 @@ impl<'a> TreeSink for TtTreeSink<'a> {
         self.inner.error(error, self.text_pos)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::tests::{expand, create_rules};
+
+    #[test]
+    fn convert_tt_token_source() {
+        let rules = create_rules(
+            r#"
+            macro_rules! literals {
+                ($i:ident) => {
+                    {
+                        let a = 'c';
+                        let c = 1000;
+                        let f = 12E+99_f64;
+                        let s = "rust1";
+                    }
+                }
+            }
+            "#,
+        );
+        let expansion = expand(&rules, "literals!(foo)");
+        let tt_src = TtTokenSource::new(&expansion);
+
+        // [{]
+        // [let] [a] [=] ['c'] [;]
+        assert_eq!(tt_src.tokens[1 + 3].text, "'c'");
+        assert_eq!(tt_src.tokens[1 + 3].kind, CHAR);
+        // [let] [c] [=] [1000] [;]
+        assert_eq!(tt_src.tokens[1 + 5 + 3].text, "1000");
+        assert_eq!(tt_src.tokens[1 + 5 + 3].kind, INT_NUMBER);
+        // [let] [f] [=] [12E+99_f64] [;]
+        assert_eq!(tt_src.tokens[1 + 10 + 3].text, "12E+99_f64");
+        assert_eq!(tt_src.tokens[1 + 10 + 3].kind, FLOAT_NUMBER);
+
+        // [let] [s] [=] ["rust1"] [;]
+        assert_eq!(tt_src.tokens[1 + 15 + 3].text, "\"rust1\"");
+        assert_eq!(tt_src.tokens[1 + 15 + 3].kind, STRING);
+    }
+}
diff --git a/crates/ra_parser/src/grammar/items.rs b/crates/ra_parser/src/grammar/items.rs
index c4b8ef3c7..318fd69a1 100644
--- a/crates/ra_parser/src/grammar/items.rs
+++ b/crates/ra_parser/src/grammar/items.rs
@@ -79,19 +79,22 @@ pub(super) fn maybe_item(p: &mut Parser, m: Marker, flavor: ItemFlavor) -> Resul
     let mut has_mods = false;
 
     // modifiers
-    // test_err async_without_semicolon
-    // fn foo() { let _ = async {} }
     has_mods |= p.eat(CONST_KW);
-    if p.at(ASYNC_KW) && p.nth(1) != L_CURLY && p.nth(1) != MOVE_KW && p.nth(1) != PIPE {
-        p.eat(ASYNC_KW);
-        has_mods = true;
-    }
+
     // test_err unsafe_block_in_mod
     // fn foo(){} unsafe { } fn bar(){}
     if p.at(UNSAFE_KW) && p.nth(1) != L_CURLY {
         p.eat(UNSAFE_KW);
         has_mods = true;
     }
+
+    // test_err async_without_semicolon
+    // fn foo() { let _ = async {} }
+    if p.at(ASYNC_KW) && p.nth(1) != L_CURLY && p.nth(1) != MOVE_KW && p.nth(1) != PIPE {
+        p.eat(ASYNC_KW);
+        has_mods = true;
+    }
+
     if p.at(EXTERN_KW) {
         has_mods = true;
         abi(p);
@@ -124,6 +127,14 @@ pub(super) fn maybe_item(p: &mut Parser, m: Marker, flavor: ItemFlavor) -> Resul
 
         // test unsafe_fn
         // unsafe fn foo() {}
+
+        // test combined_fns
+        // unsafe async fn foo() {}
+        // const unsafe fn bar() {}
+
+        // test_err wrong_order_fns
+        // async unsafe fn foo() {}
+        // unsafe const fn bar() {}
         FN_KW => {
             fn_def(p, flavor);
             m.complete(p, FN_DEF);
diff --git a/crates/ra_prof/Cargo.toml b/crates/ra_prof/Cargo.toml
new file mode 100644
index 000000000..19ce21783
--- /dev/null
+++ b/crates/ra_prof/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+edition = "2018"
+name = "ra_prof"
+version = "0.1.0"
+authors = ["rust-analyzer developers"]
+publish = false
+
+[dependencies]
+lazy_static = "1.3.0"
\ No newline at end of file
diff --git a/crates/ra_prof/src/lib.rs b/crates/ra_prof/src/lib.rs
new file mode 100644
index 000000000..1cc8e361d
--- /dev/null
+++ b/crates/ra_prof/src/lib.rs
@@ -0,0 +1,198 @@
+use std::cell::RefCell;
+use std::time::{Duration, Instant};
+use std::mem;
+use std::io::{stderr, Write};
+use std::iter::repeat;
+use std::collections::{HashSet};
+use std::default::Default;
+use std::iter::FromIterator;
+use std::sync::RwLock;
+use lazy_static::lazy_static;
+
+/// Set profiling filter. It specifies descriptions allowed to profile.
+/// This is helpful when call stack has too many nested profiling scopes.
+/// Additionally filter can specify maximum depth of profiling scopes nesting.
+///
+/// #Example
+/// ```
+/// use ra_prof::set_filter;
+/// use ra_prof::Filter;
+/// let max_depth = 2;
+/// let allowed = vec!["profile1".to_string(), "profile2".to_string()];
+/// let f = Filter::new( max_depth, allowed );
+/// set_filter(f);
+/// ```
+///
+pub fn set_filter(f: Filter) {
+    let set = HashSet::from_iter(f.allowed.iter().cloned());
+    let mut old = FILTER.write().unwrap();
+    let filter_data = FilterData { depth: f.depth, allowed: set, version: old.version + 1 };
+    *old = filter_data;
+}
+
+/// This function starts a profiling scope in the current execution stack with a given description.
+/// It returns a Profile structure and measure elapsed time between this method invocation and Profile structure drop.
+/// It supports nested profiling scopes in case when this function invoked multiple times at the execution stack. In this case the profiling information will be nested at the output.
+/// Profiling information is being printed in the stderr.
+///
+/// #Example
+/// ```
+/// use ra_prof::profile;
+/// use ra_prof::set_filter;
+/// use ra_prof::Filter;
+///
+/// let allowed = vec!["profile1".to_string(), "profile2".to_string()];
+/// let f = Filter::new(2, allowed);
+/// set_filter(f);
+/// profiling_function1();
+///
+/// fn profiling_function1() {
+///     let _p = profile("profile1");
+///     profiling_function2();
+/// }
+///
+/// fn profiling_function2() {
+///     let _p = profile("profile2");
+/// }
+/// ```
+/// This will print in the stderr the following:
+/// ```text
+///  0ms - profile
+///      0ms - profile2
+/// ```
+///
+pub fn profile(desc: &str) -> Profiler {
+    PROFILE_STACK.with(|stack| {
+        let mut stack = stack.borrow_mut();
+        if stack.starts.len() == 0 {
+            match FILTER.try_read() {
+                Ok(f) => {
+                    if f.version > stack.filter_data.version {
+                        stack.filter_data = f.clone();
+                    }
+                }
+                Err(_) => (),
+            };
+        }
+        let desc_str = desc.to_string();
+        if desc_str.is_empty() {
+            Profiler { desc: None }
+        } else if stack.starts.len() < stack.filter_data.depth
+            && stack.filter_data.allowed.contains(&desc_str)
+        {
+            stack.starts.push(Instant::now());
+            Profiler { desc: Some(desc_str) }
+        } else {
+            Profiler { desc: None }
+        }
+    })
+}
+
+pub struct Profiler {
+    desc: Option<String>,
+}
+
+pub struct Filter {
+    depth: usize,
+    allowed: Vec<String>,
+}
+
+impl Filter {
+    pub fn new(depth: usize, allowed: Vec<String>) -> Filter {
+        Filter { depth, allowed }
+    }
+}
+
+struct ProfileStack {
+    starts: Vec<Instant>,
+    messages: Vec<Message>,
+    filter_data: FilterData,
+}
+
+struct Message {
+    level: usize,
+    duration: Duration,
+    message: String,
+}
+
+impl ProfileStack {
+    fn new() -> ProfileStack {
+        ProfileStack { starts: Vec::new(), messages: Vec::new(), filter_data: Default::default() }
+    }
+}
+
+#[derive(Default, Clone)]
+struct FilterData {
+    depth: usize,
+    version: usize,
+    allowed: HashSet<String>,
+}
+
+lazy_static! {
+    static ref FILTER: RwLock<FilterData> = RwLock::new(Default::default());
+}
+
+thread_local!(static PROFILE_STACK: RefCell<ProfileStack> = RefCell::new(ProfileStack::new()));
+
+impl Drop for Profiler {
+    fn drop(&mut self) {
+        match self {
+            Profiler { desc: Some(desc) } => {
+                PROFILE_STACK.with(|stack| {
+                    let mut stack = stack.borrow_mut();
+                    let start = stack.starts.pop().unwrap();
+                    let duration = start.elapsed();
+                    let level = stack.starts.len();
+                    let message = mem::replace(desc, String::new());
+                    stack.messages.push(Message { level, duration, message });
+                    if level == 0 {
+                        let stdout = stderr();
+                        print(0, &stack.messages, &mut stdout.lock());
+                        stack.messages.clear();
+                    }
+                });
+            }
+            Profiler { desc: None } => (),
+        }
+    }
+}
+
+fn print(lvl: usize, msgs: &[Message], out: &mut impl Write) {
+    let mut last = 0;
+    let indent = repeat("    ").take(lvl + 1).collect::<String>();
+    for (i, &Message { level: l, duration: dur, message: ref msg }) in msgs.iter().enumerate() {
+        if l != lvl {
+            continue;
+        }
+        writeln!(out, "{} {:6}ms - {}", indent, dur.as_millis(), msg)
+            .expect("printing profiling info to stdout");
+
+        print(lvl + 1, &msgs[last..i], out);
+        last = i;
+    }
+}
+
+#[cfg(test)]
+mod tests {
+
+    use super::profile;
+    use super::set_filter;
+    use super::Filter;
+
+    #[test]
+    fn test_basic_profile() {
+        let s = vec!["profile1".to_string(), "profile2".to_string()];
+        let f = Filter::new(2, s);
+        set_filter(f);
+        profiling_function1();
+    }
+
+    fn profiling_function1() {
+        let _p = profile("profile1");
+        profiling_function2();
+    }
+
+    fn profiling_function2() {
+        let _p = profile("profile2");
+    }
+}
diff --git a/crates/ra_syntax/src/lib.rs b/crates/ra_syntax/src/lib.rs
index e1088e296..c56bc9f16 100644
--- a/crates/ra_syntax/src/lib.rs
+++ b/crates/ra_syntax/src/lib.rs
@@ -40,7 +40,7 @@ pub use crate::{
     syntax_text::SyntaxText,
     syntax_node::{Direction,  SyntaxNode, WalkEvent, TreeArc, SyntaxTreeBuilder, SyntaxElement, SyntaxToken},
     ptr::{SyntaxNodePtr, AstPtr},
-    parsing::{tokenize, Token},
+    parsing::{tokenize, classify_literal, Token},
 };
 
 use ra_text_edit::AtomTextEdit;
diff --git a/crates/ra_syntax/src/parsing.rs b/crates/ra_syntax/src/parsing.rs
index ad5668a65..15d69c5ab 100644
--- a/crates/ra_syntax/src/parsing.rs
+++ b/crates/ra_syntax/src/parsing.rs
@@ -11,7 +11,7 @@ use crate::{
     syntax_node::GreenNode,
 };
 
-pub use self::lexer::{tokenize, Token};
+pub use self::lexer::{tokenize, classify_literal, Token};
 
 pub(crate) use self::reparsing::incremental_reparse;
 
diff --git a/crates/ra_syntax/src/parsing/lexer.rs b/crates/ra_syntax/src/parsing/lexer.rs
index 36e841609..3ae42912c 100644
--- a/crates/ra_syntax/src/parsing/lexer.rs
+++ b/crates/ra_syntax/src/parsing/lexer.rs
@@ -214,3 +214,12 @@ fn scan_literal_suffix(ptr: &mut Ptr) {
     }
     ptr.bump_while(is_ident_continue);
 }
+
+pub fn classify_literal(text: &str) -> Option<Token> {
+    let tkn = next_token(text);
+    if !tkn.kind.is_literal() || tkn.len.to_usize() != text.len() {
+        return None;
+    }
+
+    Some(tkn)
+}
diff --git a/crates/ra_syntax/tests/data/parser/inline/err/0010_wrong_order_fns.rs b/crates/ra_syntax/tests/data/parser/inline/err/0010_wrong_order_fns.rs
new file mode 100644
index 000000000..16edee95d
--- /dev/null
+++ b/crates/ra_syntax/tests/data/parser/inline/err/0010_wrong_order_fns.rs
@@ -0,0 +1,2 @@
+async unsafe fn foo() {}
+unsafe const fn bar() {}
diff --git a/crates/ra_syntax/tests/data/parser/inline/err/0010_wrong_order_fns.txt b/crates/ra_syntax/tests/data/parser/inline/err/0010_wrong_order_fns.txt
new file mode 100644
index 000000000..220191ffa
--- /dev/null
+++ b/crates/ra_syntax/tests/data/parser/inline/err/0010_wrong_order_fns.txt
@@ -0,0 +1,39 @@
+SOURCE_FILE@[0; 50)
+  ERROR@[0; 5)
+    ASYNC_KW@[0; 5) "async"
+    err: `expected fn, trait or impl`
+  WHITESPACE@[5; 6) " "
+  FN_DEF@[6; 24)
+    UNSAFE_KW@[6; 12) "unsafe"
+    WHITESPACE@[12; 13) " "
+    FN_KW@[13; 15) "fn"
+    WHITESPACE@[15; 16) " "
+    NAME@[16; 19)
+      IDENT@[16; 19) "foo"
+    PARAM_LIST@[19; 21)
+      L_PAREN@[19; 20) "("
+      R_PAREN@[20; 21) ")"
+    WHITESPACE@[21; 22) " "
+    BLOCK@[22; 24)
+      L_CURLY@[22; 23) "{"
+      R_CURLY@[23; 24) "}"
+  WHITESPACE@[24; 25) "\n"
+  ERROR@[25; 31)
+    UNSAFE_KW@[25; 31) "unsafe"
+    err: `expected fn, trait or impl`
+  WHITESPACE@[31; 32) " "
+  FN_DEF@[32; 49)
+    CONST_KW@[32; 37) "const"
+    WHITESPACE@[37; 38) " "
+    FN_KW@[38; 40) "fn"
+    WHITESPACE@[40; 41) " "
+    NAME@[41; 44)
+      IDENT@[41; 44) "bar"
+    PARAM_LIST@[44; 46)
+      L_PAREN@[44; 45) "("
+      R_PAREN@[45; 46) ")"
+    WHITESPACE@[46; 47) " "
+    BLOCK@[47; 49)
+      L_CURLY@[47; 48) "{"
+      R_CURLY@[48; 49) "}"
+  WHITESPACE@[49; 50) "\n"
diff --git a/crates/ra_syntax/tests/data/parser/inline/ok/0128_combined_fns.rs b/crates/ra_syntax/tests/data/parser/inline/ok/0128_combined_fns.rs
new file mode 100644
index 000000000..46af91b82
--- /dev/null
+++ b/crates/ra_syntax/tests/data/parser/inline/ok/0128_combined_fns.rs
@@ -0,0 +1,2 @@
+unsafe async fn foo() {}
+const unsafe fn bar() {}
diff --git a/crates/ra_syntax/tests/data/parser/inline/ok/0128_combined_fns.txt b/crates/ra_syntax/tests/data/parser/inline/ok/0128_combined_fns.txt
new file mode 100644
index 000000000..2a16aeb61
--- /dev/null
+++ b/crates/ra_syntax/tests/data/parser/inline/ok/0128_combined_fns.txt
@@ -0,0 +1,35 @@
+SOURCE_FILE@[0; 50)
+  FN_DEF@[0; 24)
+    UNSAFE_KW@[0; 6) "unsafe"
+    WHITESPACE@[6; 7) " "
+    ASYNC_KW@[7; 12) "async"
+    WHITESPACE@[12; 13) " "
+    FN_KW@[13; 15) "fn"
+    WHITESPACE@[15; 16) " "
+    NAME@[16; 19)
+      IDENT@[16; 19) "foo"
+    PARAM_LIST@[19; 21)
+      L_PAREN@[19; 20) "("
+      R_PAREN@[20; 21) ")"
+    WHITESPACE@[21; 22) " "
+    BLOCK@[22; 24)
+      L_CURLY@[22; 23) "{"
+      R_CURLY@[23; 24) "}"
+  WHITESPACE@[24; 25) "\n"
+  FN_DEF@[25; 49)
+    CONST_KW@[25; 30) "const"
+    WHITESPACE@[30; 31) " "
+    UNSAFE_KW@[31; 37) "unsafe"
+    WHITESPACE@[37; 38) " "
+    FN_KW@[38; 40) "fn"
+    WHITESPACE@[40; 41) " "
+    NAME@[41; 44)
+      IDENT@[41; 44) "bar"
+    PARAM_LIST@[44; 46)
+      L_PAREN@[44; 45) "("
+      R_PAREN@[45; 46) ")"
+    WHITESPACE@[46; 47) " "
+    BLOCK@[47; 49)
+      L_CURLY@[47; 48) "{"
+      R_CURLY@[48; 49) "}"
+  WHITESPACE@[49; 50) "\n"
diff --git a/docs/dev/README.md b/docs/dev/README.md
index d81c2f70d..7bb323f3f 100644
--- a/docs/dev/README.md
+++ b/docs/dev/README.md
@@ -45,7 +45,7 @@ mandatory), add yourself to the list!
   [E-medium](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-medium),
   [E-hard](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-hard),
   labels are *estimates* for how hard would be to write a fix.
-* [E-fun](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AE-fun)
+* [fun](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3Afun)
   is for cool, but probably hard stuff.
 
 # CI
diff --git a/editors/code/src/commands/cargo_watch.ts b/editors/code/src/commands/cargo_watch.ts
index d45d0e7d1..32bd38a1c 100644
--- a/editors/code/src/commands/cargo_watch.ts
+++ b/editors/code/src/commands/cargo_watch.ts
@@ -46,12 +46,15 @@ export class CargoWatchProvider {
             'Cargo Watch Trace'
         );
 
-        let args = '"check --message-format json';
+        let args = 'check --message-format json';
         if (Server.config.cargoWatchOptions.checkArguments.length > 0) {
             // Excape the double quote string:
             args += ' ' + Server.config.cargoWatchOptions.checkArguments;
         }
-        args += '"';
+        // Windows handles arguments differently than the unix-likes, so we need to wrap the args in double quotes
+        if (process.platform === 'win32') {
+            args = '"' + args + '"';
+        }
 
         // Start the cargo watch with json message
         this.cargoProcess = child_process.spawn(