diff --git a/Cargo.lock b/Cargo.lock
index 9d57626e7bf..d2f0898e3bd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,6 +19,11 @@ dependencies = [
"winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "arc-swap"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
[[package]]
name = "arrayvec"
version = "0.4.10"
@@ -84,6 +89,15 @@ name = "byteorder"
version = "1.2.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
+[[package]]
+name = "bytes"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "bytesize"
version = "1.0.0"
@@ -287,6 +301,15 @@ dependencies = [
"crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "crossbeam-deque"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crossbeam-epoch 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "crossbeam-epoch"
version = "0.3.1"
@@ -301,6 +324,19 @@ dependencies = [
"scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "crossbeam-epoch"
+version = "0.7.0"
+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)",
+ "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "crossbeam-utils"
version = "0.2.2"
@@ -652,6 +688,15 @@ dependencies = [
"typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "iovec"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.46 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "itertools"
version = "0.7.11"
@@ -803,6 +848,16 @@ dependencies = [
"cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "lsp-codec"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "matches"
version = "0.1.8"
@@ -851,6 +906,56 @@ dependencies = [
"miniz_oxide 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "mio"
+version = "0.6.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "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 0.2.46 (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)",
+ "slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "mio-named-pipes"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miow 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.46 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "miow"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "miow"
version = "0.3.3"
@@ -860,6 +965,16 @@ dependencies = [
"winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "net2"
+version = "0.2.33"
+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)",
+ "libc 0.2.46 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
[[package]]
name = "nodrop"
version = "0.1.13"
@@ -1223,12 +1338,14 @@ dependencies = [
"difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
"env_logger 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
"failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
"home 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
"itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
"jsonrpc-core 9.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
"languageserver-types 0.53.1 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 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)",
+ "lsp-codec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"ordslice 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"racer 2.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1249,6 +1366,9 @@ dependencies = [
"serde_derive 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
"tempfile 3.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-process 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-timer 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
"toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
"url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
"walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1599,6 +1719,20 @@ name = "shell-escape"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
+[[package]]
+name = "signal-hook"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arc-swap 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.46 (registry+https://github.com/rust-lang/crates.io-index)",
+]
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+[[package]]
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+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
[[package]]
name = "smallvec"
version = "0.6.7"
@@ -1715,6 +1849,194 @@ dependencies = [
"lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
+[[package]]
+name = "tokio"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "tokio-current-thread 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-fs 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-threadpool 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-timer 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-udp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-uds 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
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+
[[package]]
name = "toml"
version = "0.4.10"
@@ -1869,10 +2191,20 @@ dependencies = [
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]
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+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"checksum atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
"checksum autocfg 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4e5f34df7a019573fb8bdc7e24a2bfebe51a2a1d6bfdbaeccedb3c41fc574727"
@@ -1882,6 +2214,7 @@ dependencies = [
"checksum build_const 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "39092a32794787acd8525ee150305ff051b0aa6cc2abaf193924f5ab05425f39"
"checksum bytecount 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b92204551573580e078dc80017f36a213eb77a0450e4ddd8cfa0f3f2d1f0178f"
"checksum byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "94f88df23a25417badc922ab0f5716cc1330e87f71ddd9203b3a3ccd9cedf75d"
+"checksum bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "40ade3d27603c2cb345eb0912aec461a6dec7e06a4ae48589904e808335c7afa"
"checksum bytesize 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "716960a18f978640f25101b5cbf1c6f6b0d3192fab36a2d98ca96f0ecbe41010"
"checksum cargo 0.34.0 (git+https://github.com/rust-lang/cargo?rev=2a9f16da7ffc4877aacf7547bac705f0d82de2d6)" = "<none>"
"checksum cargo_metadata 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "e5d1b4d380e1bab994591a24c2bdd1b054f64b60bef483a8c598c7c345bc3bbe"
@@ -1899,7 +2232,9 @@ dependencies = [
"checksum crc32fast 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e91d5240c6975ef33aeb5f148f35275c25eda8e8a5f95abe421978b05b8bf192"
"checksum crossbeam-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "137bc235f622ffaa0428e3854e24acb53291fc0b3ff6fb2cb75a8be6fb02f06b"
"checksum crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f739f8c5363aca78cfb059edf753d8f0d36908c348f3d8d1503f03d8b75d9cf3"
+"checksum crossbeam-deque 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "05e44b8cf3e1a625844d1750e1f7820da46044ff6d28f4d43e455ba3e5bb2c13"
"checksum crossbeam-epoch 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "927121f5407de9956180ff5e936fe3cf4324279280001cd56b669d28ee7e9150"
+"checksum crossbeam-epoch 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f10a4f8f409aaac4b16a5474fb233624238fcdeefb9ba50d5ea059aab63ba31c"
"checksum crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2760899e32a1d58d5abb31129f8fae5de75220bc2176e77ff7c627ae45c918d9"
"checksum crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "41ee4864f4797060e52044376f7d107429ce1fb43460021b126424b7180ee21a"
"checksum crypto-hash 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "20ff87d28defc77c9980a5b81cae1a33c791dd0ead8af0cee0833eb98c8305b9"
@@ -1939,6 +2274,7 @@ dependencies = [
"checksum if_chain 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4bac95d9aa0624e7b78187d6fb8ab012b41d9f6f54b1bcb61e61c4845f8357ec"
"checksum ignore 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ad03ca67dc12474ecd91fdb94d758cbd20cb4e7a78ebe831df26a9b7511e1162"
"checksum im-rc 12.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d4591152fd573cf453a890b5f9fdc5c328a751a0785539316739d5f85e5c468c"
+"checksum iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dbe6e417e7d0975db6512b90796e8ce223145ac4e33c377e4a42882a0e88bb08"
"checksum itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)" = "0d47946d458e94a1b7bcabbf6521ea7c037062c81f534615abcad76e84d4970d"
"checksum itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5b8467d9c1cebe26feb08c640139247fac215782d35371ade9a2136ed6085358"
"checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
@@ -1956,13 +2292,19 @@ dependencies = [
"checksum libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "2eb5e43362e38e2bca2fd5f5134c4d4564a23a5c28e9b95411652021a8675ebe"
"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"
+"checksum lsp-codec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9b29e3d1632fef13c1286b0b2f8545a7d894ae565a7fac013b90a17ee5bfbc91"
"checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
"checksum memchr 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "db4c41318937f6e76648f42826b1d9ade5c09cafb5aef7e351240a70f39206e9"
"checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
"checksum miniz-sys 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "0300eafb20369952951699b68243ab4334f4b10a88f411c221d444b36c40e649"
"checksum miniz_oxide 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5ad30a47319c16cde58d0314f5d98202a80c9083b5f61178457403dfb14e509c"
"checksum miniz_oxide_c_api 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "28edaef377517fd9fe3e085c37d892ce7acd1fbeab9239c5a36eec352d8a8b7e"
+"checksum mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)" = "71646331f2619b1026cc302f87a2b8b648d5c6dd6937846a16cc8ce0f347f432"
+"checksum mio-named-pipes 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "f5e374eff525ce1c5b7687c4cef63943e7686524a387933ad27ca7ec43779cb3"
+"checksum mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "966257a94e196b11bb43aca423754d87429960a768de9414f3691d6957abf125"
+"checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
"checksum miow 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "396aa0f2003d7df8395cb93e09871561ccc3e785f0acb369170e8cc74ddf9226"
+"checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
"checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
"checksum num-derive 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8af1847c907c2f04d7bfd572fb25bbb4385c637fe5be163cf2f8c5d778fe1e7d"
"checksum num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0b3a5d7cc97d6d30d8b9bc8fa19bf45349ffe46241e8816f50f62f6d6aaabee1"
@@ -2040,6 +2382,8 @@ dependencies = [
"checksum serde_ignored 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "190e9765dcedb56be63b6e0993a006c7e3b071a016a304736e4a315dc01fb142"
"checksum serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)" = "bdf540260cfee6da923831f4776ddc495ada940c30117977c70f1313a6130545"
"checksum shell-escape 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "170a13e64f2a51b77a45702ba77287f5c6829375b04a69cf2222acd17d0cfab9"
+"checksum signal-hook 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1f272d1b7586bec132ed427f532dd418d8beca1ca7f2caf7df35569b1415a4b4"
+"checksum slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5f9776d6b986f77b35c6cf846c11ad986ff128fe0b2b63a3628e3755e8d3102d"
"checksum smallvec 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b73ea3738b47563803ef814925e69be00799a8c07420be8b996f8e98fb2336db"
"checksum socket2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "c4d11a52082057d87cb5caa31ad812f4504b97ab44732cd8359df2e9ff9f48e7"
"checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
@@ -2053,6 +2397,20 @@ dependencies = [
"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
"checksum textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "307686869c93e71f94da64286f9a9524c0f308a9e1c87a583de8e9c9039ad3f6"
"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
+"checksum tokio 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "4790d0be6f4ba6ae4f48190efa2ed7780c9e3567796abdb285003cf39840d9c5"
+"checksum tokio-codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5c501eceaf96f0e1793cf26beb63da3d11c738c4a943fdf3746d81d64684c39f"
+"checksum tokio-current-thread 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "331c8acc267855ec06eb0c94618dcbbfea45bed2d20b77252940095273fb58f6"
+"checksum tokio-executor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "30c6dbf2d1ad1de300b393910e8a3aa272b724a400b6531da03eed99e329fbf0"
+"checksum tokio-fs 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0e9cbbc8a3698b7ab652340f46633364f9eaa928ddaaee79d8b8f356dd79a09d"
+"checksum tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b53aeb9d3f5ccf2ebb29e19788f96987fa1355f8fe45ea193928eaaaf3ae820f"
+"checksum tokio-process 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "88e1281e412013f1ff5787def044a9577a0bed059f451e835f1643201f8b777d"
+"checksum tokio-reactor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "afbcdb0f0d2a1e4c440af82d7bbf0bf91a8a8c0575bcd20c05d15be7e9d3a02f"
+"checksum tokio-signal 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "dd6dc5276ea05ce379a16de90083ec80836440d5ef8a6a39545a3207373b8296"
+"checksum tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1d14b10654be682ac43efee27401d792507e30fd8d26389e1da3b185de2e4119"
+"checksum tokio-threadpool 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "17465013014410310f9f61fa10bf4724803c149ea1d51efece131c38efca93aa"
+"checksum tokio-timer 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "4f37f0111d76cc5da132fe9bc0590b9b9cfd079bc7e75ac3846278430a299ff8"
+"checksum tokio-udp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "66268575b80f4a4a710ef83d087fdfeeabdce9b74c797535fbac18a2cb906e92"
+"checksum tokio-uds 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "037ffc3ba0e12a0ab4aca92e5234e0dedeb48fddf6ccd260f1f150a36a9f2445"
"checksum toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "758664fc71a3a69038656bee8b6be6477d2a6c315a6b81f7081f591bffa4111f"
"checksum typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "612d636f949607bdf9b123b4a6f6d966dedf3ff669f7f045890d3a4a73948169"
"checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"
@@ -2077,3 +2435,4 @@ dependencies = [
"checksum winapi-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "afc5508759c5bf4285e61feb862b6083c8480aec864fa17a81fdec6f69b461ab"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
"checksum wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "561ed901ae465d6185fa7864d63fbd5720d0ef718366c9a4dc83cf6170d7e9ba"
+"checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
diff --git a/Cargo.toml b/Cargo.toml
index 930b130ae16..63e00f457eb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -61,6 +61,11 @@ rustc-workspace-hack = "1.0.0"
[dev-dependencies]
difference = "2"
tempfile = "3"
+lsp-codec = "0.1"
+tokio = "0.1"
+futures = "0.1"
+tokio-process = "0.2"
+tokio-timer = "0.2"
[build-dependencies]
rustc_tools_util = "0.1.1"
diff --git a/tests/client.rs b/tests/client.rs
new file mode 100644
index 00000000000..e97300363a1
--- /dev/null
+++ b/tests/client.rs
@@ -0,0 +1,116 @@
+use self::support::project_builder::project;
+
+#[allow(dead_code)]
+mod support;
+
+#[test]
+fn client_test_simple_workspace() {
+ let p = project("simple_workspace")
+ .file(
+ "Cargo.toml",
+ r#"
+ [workspace]
+ members = [
+ "member_lib",
+ "member_bin",
+ ]
+ "#,
+ )
+ .file(
+ "Cargo.lock",
+ r#"
+ [root]
+ name = "member_lib"
+ version = "0.1.0"
+
+ [[package]]
+ name = "member_bin"
+ version = "0.1.0"
+ dependencies = [
+ "member_lib 0.1.0",
+ ]
+ "#,
+ )
+ .file(
+ "member_bin/Cargo.toml",
+ r#"
+ [package]
+ name = "member_bin"
+ version = "0.1.0"
+ authors = ["Igor Matuszewski <Xanewok@gmail.com>"]
+
+ [dependencies]
+ member_lib = { path = "../member_lib" }
+ "#,
+ )
+ .file(
+ "member_bin/src/main.rs",
+ r#"
+ extern crate member_lib;
+
+ fn main() {
+ let a = member_lib::MemberLibStruct;
+ }
+ "#,
+ )
+ .file(
+ "member_lib/Cargo.toml",
+ r#"
+ [package]
+ name = "member_lib"
+ version = "0.1.0"
+ authors = ["Igor Matuszewski <Xanewok@gmail.com>"]
+
+ [dependencies]
+ "#,
+ )
+ .file(
+ "member_lib/src/lib.rs",
+ r#"
+ pub struct MemberLibStruct;
+
+ struct Unused;
+
+ #[cfg(test)]
+ mod tests {
+ #[test]
+ fn it_works() {
+ }
+ }
+ "#,
+ )
+ .build();
+
+ let root_path = p.root();
+ let mut rls = p.spawn_rls_async();
+
+ rls.request::<languageserver_types::request::Initialize>(
+ 0,
+ languageserver_types::InitializeParams {
+ process_id: None,
+ root_uri: None,
+ root_path: Some(root_path.display().to_string()),
+ initialization_options: None,
+ capabilities: languageserver_types::ClientCapabilities {
+ workspace: None,
+ text_document: None,
+ experimental: None,
+ },
+ trace: None,
+ workspace_folders: None,
+ },
+ );
+
+ rls.wait_for_indexing();
+
+ // Check if we built member_lib and member_bin + their cfg(test) variants
+ let count = rls.messages()
+ .iter()
+ .filter(|msg| msg["method"] == "window/progress")
+ .filter(|msg| msg["params"]["title"] == "Building")
+ .filter(|msg| msg["params"]["message"].as_str().map(|x| x.starts_with("member_")).unwrap_or(false))
+ .count();
+ assert_eq!(count, 4);
+
+ rls.shutdown();
+}
diff --git a/tests/support/client.rs b/tests/support/client.rs
new file mode 100644
index 00000000000..3f7fb47121e
--- /dev/null
+++ b/tests/support/client.rs
@@ -0,0 +1,218 @@
+//! Tokio-based LSP client. The tokio `current_thread::Runtime` allows for a
+//! cheap, single-threaded blocking until a certain message is received from the
+//! server. It also allows enforcing timeouts, which are necessary for testing.
+//!
+//! More concretely, we couple spawned RLS handle with the Tokio runtime on
+//! current thread. A message reader `Stream<Item = Value, ...>` future is
+//! spawned on the runtime, which allows us to queue channel senders which can
+//! be notified when resolving the reader future. On each message reception we
+//! check if a channel sender was registered with an associated predicate being
+//! true for the message received, and if so we send the message, notifying the
+//! receiver (thus, implementing the Future<Item = Value> model).
+
+use std::cell::{Ref, RefCell};
+use std::process::{Command, Stdio};
+use std::rc::Rc;
+
+use futures::sink::Sink;
+use futures::stream::Stream;
+use futures::unsync::oneshot;
+use futures::Future;
+use lsp_codec::{LspDecoder, LspEncoder};
+use serde::Deserialize;
+use serde_json::{json, Value};
+use tokio::codec::{FramedRead, FramedWrite};
+use tokio::runtime::current_thread::Runtime;
+use tokio::util::FutureExt;
+use tokio_process::{Child, ChildStdin, CommandExt};
+
+use super::project_builder::Project;
+use super::{rls_exe, rls_timeout};
+
+// `Rc` because we share those in message reader stream and the RlsHandle.
+// `RefCell` because borrows don't overlap. This is safe, because `process_msg`
+// is only called (synchronously) when we execute some work on the runtime,
+// however we only call `Runtime::block_on` and whenever we do it, there are no
+// active borrows in scope.
+type Messages = Rc<RefCell<Vec<Value>>>;
+type Channels = Rc<RefCell<Vec<(Box<Fn(&Value) -> bool>, oneshot::Sender<Value>)>>>;
+
+impl Project {
+ pub fn spawn_rls_async(&self) -> RlsHandle {
+ let mut cmd = Command::new(rls_exe());
+ cmd.current_dir(self.root())
+ .stdin(Stdio::piped())
+ .stdout(Stdio::piped())
+ .stderr(Stdio::inherit());
+
+ let mut child = cmd.spawn_async().expect("Couldn't spawn RLS");
+ let stdin = child.stdin().take().unwrap();
+ let stdout = child.stdout().take().unwrap();
+
+ let msgs = Messages::default();
+ let chans = Channels::default();
+
+ let reader = FramedRead::new(std::io::BufReader::new(stdout), LspDecoder::default())
+ .map_err(|_| ())
+ .for_each({
+ let msgs = Rc::clone(&msgs);
+ let chans = Rc::clone(&chans);
+ move |msg| process_msg(msg, msgs.clone(), chans.clone())
+ })
+ .timeout(rls_timeout());
+
+ let writer = Some(FramedWrite::new(stdin, LspEncoder));
+
+ let mut rt = Runtime::new().unwrap();
+ rt.spawn(reader.map_err(|_| ()));
+
+ RlsHandle {
+ writer,
+ child,
+ runtime: rt,
+ messages: msgs,
+ channels: chans,
+ }
+ }
+}
+
+fn process_msg(msg: Value, msgs: Messages, chans: Channels) -> Result<(), ()> {
+ eprintln!("Processing message: {:?}", msg);
+
+ let mut chans = chans.borrow_mut();
+
+ if chans.len() > 0 {
+ let mut idx = (chans.len() - 1) as isize;
+
+ // Poor man's drain_filter. Iterates over entire collection starting
+ // from the end, takes ownership over the element and the predicate is
+ // true, then we consume the value; otherwise, we push it to the back,
+ // effectively undoing swap_remove (post-swap). This is correct, because
+ // on every iteration we decrease idx by 1, so we won't loop and we will
+ // check every element.
+ while idx >= 0 {
+ let (pred, tx) = chans.swap_remove(idx as usize);
+ if pred(&msg) {
+ tx.send(msg.clone()).map_err(|_| ())?;
+ } else {
+ chans.push((pred, tx));
+ }
+
+ idx -= 1;
+ }
+
+ debug_assert!(chans.iter().all(|(pred, _)| !pred(&msg)));
+ }
+
+ msgs.borrow_mut().push(msg);
+
+ Ok(())
+}
+
+/// Holds the handle to a spawned RLS child process and allows to send and
+/// receive messages to and from the process.
+pub struct RlsHandle {
+ /// Asynchronous LSP writer for the spawned process.
+ writer: Option<FramedWrite<ChildStdin, LspEncoder>>,
+ /// Handle to the spawned child.
+ child: Child,
+ /// Tokio single-thread runtime onto which LSP message reading stream has
+ /// been spawned. Allows to synchronously write messages via `writer` and
+ /// block on received messages matching an enqueued predicate in `channels`.
+ runtime: Runtime,
+ /// Handle to all of the received LSP messages.
+ messages: Messages,
+ /// Handle to enqueued channel senders, used to notify when a given message
+ /// has been received.
+ channels: Channels,
+}
+
+impl RlsHandle {
+ /// Returns messages received until the moment of the call.
+ pub fn messages(&self) -> Ref<Vec<Value>> {
+ self.messages.borrow()
+ }
+
+ /// Send a request to the RLS and block until we receive the message.
+ /// Note that between sending and receiving the response *another* messages
+ /// can be received.
+ pub fn request<R>(&mut self, id: u64, params: R::Params) -> R::Result
+ where
+ R: rls::lsp_data::LSPRequest,
+ R::Params: serde::Serialize,
+ R::Result: serde::de::DeserializeOwned,
+ {
+ self.send(json!({
+ "jsonrpc": "2.0",
+ "id": id,
+ "method": R::METHOD,
+ "params": params,
+ }));
+
+ let msg = self.wait_for_message(move |val| val["id"] == id && val.get("result").is_some());
+
+ R::Result::deserialize(&msg["result"])
+ .unwrap_or_else(|_| panic!("Can't deserialize results: {:?}", msg))
+ }
+
+ /// Synchronously sends a notification to the RLS.
+ pub fn notify<R>(&mut self, params: R::Params)
+ where
+ R: rls::lsp_data::LSPNotification,
+ R::Params: serde::Serialize,
+ {
+ self.send(json!({
+ "jsonrpc": "2.0",
+ "method": R::METHOD,
+ "params": params,
+ }));
+ }
+
+ /// Synchronously sends a message to the RLS.
+ pub fn send(&mut self, msg: Value) {
+ eprintln!("Sending: {:?}", msg);
+
+ let writer = self.writer.take().unwrap();
+
+ let fut = writer.send(msg);
+
+ self.writer = Some(self.runtime.block_on(fut).unwrap());
+ }
+
+ /// Enqueues a channel that is notified and consumed when a given predicate
+ /// `f` is true for a received message.
+ fn future_msg(
+ &mut self,
+ f: impl Fn(&Value) -> bool + 'static,
+ ) -> impl Future<Item = Value, Error = oneshot::Canceled> {
+ let (tx, rx) = oneshot::channel();
+
+ self.channels.borrow_mut().push((Box::new(f), tx));
+
+ rx
+ }
+
+ /// Blocks until a message, for which predicate `f` returns true, is received.
+ pub fn wait_for_message(&mut self, f: impl Fn(&Value) -> bool + 'static) -> Value {
+ let fut = self.future_msg(f);
+ self.runtime.block_on(fut).unwrap()
+ }
+
+ /// Blocks until the processing (building + indexing) is done by the RLS.
+ pub fn wait_for_indexing(&mut self) {
+ self.wait_for_message(|msg| {
+ msg["params"]["title"] == "Indexing" && msg["params"]["done"] == true
+ });
+ }
+
+ /// Requests the RLS to shut down and waits (with a timeout) until the child
+ /// process is terminated.
+ pub fn shutdown(mut self) {
+ self.request::<languageserver_types::request::Shutdown>(99999, ());
+ self.notify::<languageserver_types::notification::Exit>(());
+
+ let fut = self.child.wait_with_output().timeout(rls_timeout());
+
+ self.runtime.block_on(fut).unwrap();
+ }
+}
diff --git a/tests/support/mod.rs b/tests/support/mod.rs
index b52c0127fad..5f0dd8c925f 100644
--- a/tests/support/mod.rs
+++ b/tests/support/mod.rs
@@ -11,6 +11,7 @@ use std::sync::{Arc, Mutex};
use std::thread;
use std::time::{Duration, Instant};
+pub mod client;
pub mod project_builder;
pub mod paths;
pub mod harness;