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authorBlaž Hrastnik2020-12-03 04:12:40 +0000
committerGitHub2020-12-03 04:12:40 +0000
commitb7a3e525ed7fed5ed79e8580df2e3496bd994419 (patch)
treed202637047759b0510a16d8c59fdbbde62b50617
parent2e12fc9a7cd221bb7b5f4b5c1ece599089770ccb (diff)
parent39bf1ca82514e1dc56dfebdce2558cce662367d1 (diff)
Merge pull request #5 from helix-editor/lsp
LSP: mk1
Diffstat
-rw-r--r--Cargo.lock678
-rw-r--r--Cargo.toml1
-rw-r--r--helix-core/src/diagnostic.rs7
-rw-r--r--helix-core/src/history.rs46
-rw-r--r--helix-core/src/indent.rs29
-rw-r--r--helix-core/src/lib.rs4
-rw-r--r--helix-core/src/selection.rs5
-rw-r--r--helix-core/src/state.rs78
-rw-r--r--helix-core/src/syntax.rs6
-rw-r--r--helix-core/src/transaction.rs45
-rw-r--r--helix-lsp/Cargo.toml26
-rw-r--r--helix-lsp/src/client.rs355
-rw-r--r--helix-lsp/src/lib.rs117
-rw-r--r--helix-lsp/src/transport.rs212
-rw-r--r--helix-term/Cargo.toml10
-rw-r--r--helix-term/src/application.rs454
-rw-r--r--helix-term/src/main.rs51
-rw-r--r--helix-view/Cargo.toml3
-rw-r--r--helix-view/src/commands.rs533
-rw-r--r--helix-view/src/document.rs209
-rw-r--r--helix-view/src/editor.rs32
-rw-r--r--helix-view/src/keymap.rs16
-rw-r--r--helix-view/src/lib.rs3
-rw-r--r--helix-view/src/theme.rs2
-rw-r--r--helix-view/src/view.rs48
25 files changed, 2322 insertions, 648 deletions
diff --git a/Cargo.lock b/Cargo.lock
index 0a3137d9..a3e93bd7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,24 +2,30 @@
# It is not intended for manual editing.
[[package]]
name = "aho-corasick"
-version = "0.7.14"
+version = "0.7.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b476ce7103678b0c6d3d395dbbae31d48ff910bd28be979ba5d48c6351131d0d"
+checksum = "7404febffaa47dac81aa44dba71523c9d069b1bdc50a77db41195149e17f68e5"
dependencies = [
"memchr",
]
[[package]]
name = "anyhow"
-version = "1.0.33"
+version = "1.0.34"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1fd36ffbb1fb7c834eac128ea8d0e310c5aeb635548f9d58861e1308d46e71c"
+checksum = "bf8dcb5b4bbaa28653b647d8c77bd4ed40183b48882e130c1f1ffb73de069fd7"
[[package]]
-name = "arc-swap"
-version = "0.4.7"
+name = "arrayref"
+version = "0.3.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d25d88fd6b8041580a654f9d0c581a047baee2b3efee13275f2fc392fc75034"
+checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
+
+[[package]]
+name = "arrayvec"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
[[package]]
name = "async-channel"
@@ -34,9 +40,9 @@ dependencies = [
[[package]]
name = "async-executor"
-version = "1.3.0"
+version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d373d78ded7d0b3fa8039375718cde0aace493f2e34fb60f51cbf567562ca801"
+checksum = "eb877970c7b440ead138f6321a3b5395d6061183af779340b65e20c0fede9146"
dependencies = [
"async-task",
"concurrent-queue",
@@ -59,9 +65,9 @@ dependencies = [
[[package]]
name = "async-io"
-version = "1.1.10"
+version = "1.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d54bc4c1c7292475efb2253227dbcfad8fe1ca4c02bc62c510cc2f3da5c4704e"
+checksum = "9315f8f07556761c3e48fec2e6b276004acf426e6dc068b2c2251854d65ee0fd"
dependencies = [
"concurrent-queue",
"fastrand",
@@ -88,9 +94,9 @@ dependencies = [
[[package]]
name = "async-net"
-version = "1.4.7"
+version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee4c3668eb091d781e97f0026b5289b457c77d407a85749a9bb4c057456c428f"
+checksum = "06de475c85affe184648202401d7622afb32f0f74e02192857d0201a16defbe5"
dependencies = [
"async-io",
"blocking",
@@ -106,7 +112,7 @@ checksum = "4c8cea09c1fb10a317d1b5af8024eeba256d6554763e85ecd90ff8df31c7bbda"
dependencies = [
"async-io",
"blocking",
- "cfg-if",
+ "cfg-if 0.1.10",
"event-listener",
"futures-lite",
"once_cell",
@@ -116,9 +122,9 @@ dependencies = [
[[package]]
name = "async-task"
-version = "4.0.2"
+version = "4.0.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ab27c1aa62945039e44edaeee1dc23c74cc0c303dd5fe0fb462a184f1c3a518"
+checksum = "e91831deabf0d6d7ec49552e489aed63b7456a7a3c46cff62adad428110b0af0"
[[package]]
name = "atomic-waker"
@@ -133,12 +139,35 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
[[package]]
+name = "base64"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
+
+[[package]]
+name = "base64"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+
+[[package]]
name = "bitflags"
version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
[[package]]
+name = "blake2b_simd"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "constant_time_eq",
+]
+
+[[package]]
name = "blocking"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -166,9 +195,9 @@ checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
[[package]]
name = "cc"
-version = "1.0.61"
+version = "1.0.65"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed67cbde08356238e75fc4656be4749481eeffb09e19f320a25237d5221c985d"
+checksum = "95752358c8f7552394baf48cd82695b345628ad3f170d607de3ca03b8dacca15"
dependencies = [
"jobserver",
]
@@ -180,6 +209,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "chrono"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+dependencies = [
+ "libc",
+ "num-integer",
+ "num-traits",
+ "time",
+ "winapi",
+]
+
+[[package]]
name = "clap"
version = "3.0.0-beta.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -213,10 +261,27 @@ dependencies = [
]
[[package]]
+name = "constant_time_eq"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02d96d1e189ef58269ebe5b97953da3274d83a93af647c2ddd6f9dab28cedb8d"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "lazy_static",
+]
+
+[[package]]
name = "crossterm"
-version = "0.18.0"
+version = "0.18.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2fcdc3c9cf8ee446222e8ee8691a6d21b563b8fe1a64b1873080db7b5b23cf0"
+checksum = "4e86d73f2a0b407b5768d10a8c720cf5d2df49a9efc10ca09176d201ead4b7fb"
dependencies = [
"bitflags",
"crossterm_winapi",
@@ -231,14 +296,35 @@ dependencies = [
[[package]]
name = "crossterm_winapi"
-version = "0.6.1"
+version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "057b7146d02fb50175fd7dbe5158f6097f33d02831f43b4ee8ae4ddf67b68f5c"
+checksum = "c2265c3f8e080075d9b6417aa72293fc71662f34b4af2612d8d1b074d29510db"
dependencies = [
"winapi",
]
[[package]]
+name = "dirs"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13aea89a5c93364a98e9b37b2fa237effbb694d5cfe01c5b70941f7eb087d5e3"
+dependencies = [
+ "cfg-if 0.1.10",
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e93d7f5705de3e49895a2b5e0b8855a1c27f080192ae9c32a6432d50741a57a"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
+[[package]]
name = "event-listener"
version = "2.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -254,6 +340,25 @@ dependencies = [
]
[[package]]
+name = "fern"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c9a4820f0ccc8a7afd67c39a0f1a0f4b07ca1725164271a64939d7aeb9af065"
+dependencies = [
+ "log",
+]
+
+[[package]]
+name = "form_urlencoded"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ece68d15c92e84fa4f19d3780f1294e5ca82a78a6d515f1efaabcc144688be00"
+dependencies = [
+ "matches",
+ "percent-encoding",
+]
+
+[[package]]
name = "futf"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -264,22 +369,28 @@ dependencies = [
]
[[package]]
+name = "futures"
+version = "0.1.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c7e4c2612746b0df8fed4ce0c69156021b704c9aefa360311c04e6e9e002eed"
+
+[[package]]
name = "futures-core"
-version = "0.3.6"
+version = "0.3.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d674eaa0056896d5ada519900dbf97ead2e46a7b6621e8160d79e2f2e1e2784b"
+checksum = "847ce131b72ffb13b6109a221da9ad97a64cbe48feb1028356b836b47b8f1748"
[[package]]
name = "futures-io"
-version = "0.3.6"
+version = "0.3.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fc94b64bb39543b4e432f1790b6bf18e3ee3b74653c5449f63310e9a74b123c"
+checksum = "611834ce18aaa1bd13c4b374f5d653e1027cf99b6b502584ff8c9a64413b30bb"
[[package]]
name = "futures-lite"
-version = "1.11.1"
+version = "1.11.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "381a7ad57b1bad34693f63f6f377e1abded7a9c85c9d3eb6771e11c60aaadab9"
+checksum = "5e6c079abfac3ab269e2927ec048dabc89d009ebfdda6b8ee86624f30c689658"
dependencies = [
"fastrand",
"futures-core",
@@ -291,6 +402,60 @@ dependencies = [
]
[[package]]
+name = "futures-macro"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77408a692f1f97bcc61dc001d752e00643408fbc922e4d634c655df50d595556"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-task"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c554eb5bf48b2426c4771ab68c6b14468b6e76cc90996f528c3338d761a4d0d"
+dependencies = [
+ "once_cell",
+]
+
+[[package]]
+name = "futures-util"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d304cff4a7b99cfb7986f7d43fbe93d175e72e704a8860787cc95e9ffd85cbd2"
+dependencies = [
+ "futures-core",
+ "futures-macro",
+ "futures-task",
+ "pin-project",
+ "pin-utils",
+ "proc-macro-hack",
+ "proc-macro-nested",
+ "slab",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.1.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
+dependencies = [
+ "cfg-if 0.1.10",
+ "libc",
+ "wasi 0.9.0+wasi-snapshot-preview1",
+]
+
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
+[[package]]
name = "hashbrown"
version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -313,6 +478,28 @@ dependencies = [
]
[[package]]
+name = "helix-lsp"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "futures-util",
+ "glob",
+ "helix-core",
+ "helix-view",
+ "jsonrpc-core",
+ "log",
+ "lsp-types",
+ "once_cell",
+ "pathdiff",
+ "serde",
+ "serde_json",
+ "shellexpand",
+ "smol",
+ "thiserror",
+ "url",
+]
+
+[[package]]
name = "helix-syntax"
version = "0.1.0"
dependencies = [
@@ -325,10 +512,15 @@ name = "helix-term"
version = "0.1.0"
dependencies = [
"anyhow",
+ "chrono",
"clap",
"crossterm",
+ "fern",
+ "futures-util",
"helix-core",
+ "helix-lsp",
"helix-view",
+ "log",
"num_cpus",
"smol",
"tui",
@@ -342,7 +534,9 @@ dependencies = [
"crossterm",
"helix-core",
"once_cell",
+ "smol",
"tui",
+ "url",
]
[[package]]
@@ -355,6 +549,17 @@ dependencies = [
]
[[package]]
+name = "idna"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02e2673c30ee86b5b96a9cb52ad15718aa1f966f5ab9ad54a8b95d5ca33120a9"
+dependencies = [
+ "matches",
+ "unicode-bidi",
+ "unicode-normalization",
+]
+
+[[package]]
name = "indexmap"
version = "1.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -366,14 +571,20 @@ dependencies = [
[[package]]
name = "instant"
-version = "0.1.7"
+version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "63312a18f7ea8760cdd0a7c5aac1a619752a246b833545e3e36d1f81f7cd9e66"
+checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
]
[[package]]
+name = "itoa"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
+
+[[package]]
name = "jobserver"
version = "0.1.21"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -383,6 +594,19 @@ dependencies = [
]
[[package]]
+name = "jsonrpc-core"
+version = "15.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0745a6379e3edc893c84ec203589790774e4247420033e71a76d3ab4687991fa"
+dependencies = [
+ "futures",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+]
+
+[[package]]
name = "lazy_static"
version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -390,15 +614,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
[[package]]
name = "libc"
-version = "0.2.79"
+version = "0.2.80"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2448f6066e80e3bfc792e9c98bf705b4b0fc6e8ef5b43e5889aff0eaa9c58743"
+checksum = "4d58d1b70b004888f764dfbf6a26a3b0342a1632d33968e4a179d8011c760614"
[[package]]
name = "lock_api"
-version = "0.4.1"
+version = "0.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28247cc5a5be2f05fbcd76dd0cf2c7d3b5400cb978a28042abcd4fa0b3f8261c"
+checksum = "dd96ffd135b2fd7b973ac026d28085defbe8983df057ced3eb4f2130b0831312"
dependencies = [
"scopeguard",
]
@@ -409,7 +633,21 @@ version = "0.4.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
+]
+
+[[package]]
+name = "lsp-types"
+version = "0.84.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b95be71fe205e44de754185bcf86447b65813ce1ceb298f8d3793ade5fff08d"
+dependencies = [
+ "base64 0.12.3",
+ "bitflags",
+ "serde",
+ "serde_json",
+ "serde_repr",
+ "url",
]
[[package]]
@@ -419,16 +657,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
[[package]]
+name = "matches"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
+
+[[package]]
name = "memchr"
-version = "2.3.3"
+version = "2.3.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -579,12 +921,81 @@ dependencies = [
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diff --git a/Cargo.toml b/Cargo.toml
index 25dbe725..d7dab22e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ members = [
"helix-view",
"helix-term",
"helix-syntax",
+ "helix-lsp",
]
# Build helix-syntax in release mode to make the code path faster in development.
diff --git a/helix-core/src/diagnostic.rs b/helix-core/src/diagnostic.rs
new file mode 100644
index 00000000..96ed6746
--- /dev/null
+++ b/helix-core/src/diagnostic.rs
@@ -0,0 +1,7 @@
+use crate::Range;
+
+pub struct Diagnostic {
+ pub range: (usize, usize),
+ pub line: usize,
+ pub message: String,
+}
diff --git a/helix-core/src/history.rs b/helix-core/src/history.rs
index e6d9a738..66445525 100644
--- a/helix-core/src/history.rs
+++ b/helix-core/src/history.rs
@@ -57,37 +57,31 @@ impl History {
self.cursor == 0
}
- pub fn undo(&mut self, state: &mut State) {
+ // TODO: I'd like to pass Transaction by reference but it fights with the borrowck
+
+ pub fn undo(&mut self) -> Option<Transaction> {
if self.at_root() {
// We're at the root of undo, nothing to do.
- return;
+ return None;
}
let current_revision = &self.revisions[self.cursor];
- // TODO: pass the return value through? It should always succeed
- let success = current_revision.revert.apply(state);
-
- if !success {
- panic!("Failed to apply undo!");
- }
-
self.cursor = current_revision.parent;
+
+ Some(current_revision.revert.clone())
}
- pub fn redo(&mut self, state: &mut State) {
+ pub fn redo(&mut self) -> Option<Transaction> {
let current_revision = &self.revisions[self.cursor];
// for now, simply pick the latest child (linear undo / redo)
if let Some((index, transaction)) = current_revision.children.last() {
- let success = transaction.apply(state);
-
- if !success {
- panic!("Failed to apply redo!");
- }
-
self.cursor = *index;
+
+ return Some(transaction.clone());
}
+ None
}
}
@@ -120,17 +114,27 @@ mod test {
assert_eq!("hello 世界!", state.doc());
// ---
+ fn undo(history: &mut History, state: &mut State) {
+ if let Some(transaction) = history.undo() {
+ transaction.apply(state);
+ }
+ }
+ fn redo(history: &mut History, state: &mut State) {
+ if let Some(transaction) = history.redo() {
+ transaction.apply(state);
+ }
+ }
- history.undo(&mut state);
+ undo(&mut history, &mut state);
assert_eq!("hello world!", state.doc());
- history.redo(&mut state);
+ redo(&mut history, &mut state);
assert_eq!("hello 世界!", state.doc());
- history.undo(&mut state);
- history.undo(&mut state);
+ undo(&mut history, &mut state);
+ undo(&mut history, &mut state);
assert_eq!("hello", state.doc());
// undo at root is a no-op
- history.undo(&mut state);
+ undo(&mut history, &mut state);
assert_eq!("hello", state.doc());
}
}
diff --git a/helix-core/src/indent.rs b/helix-core/src/indent.rs
index 2e1a095e..6b9a1ab1 100644
--- a/helix-core/src/indent.rs
+++ b/helix-core/src/indent.rs
@@ -111,17 +111,17 @@ fn find_first_non_whitespace_char(state: &State, line_num: usize) -> usize {
start
}
-fn suggested_indent_for_line(state: &State, line_num: usize) -> usize {
+fn suggested_indent_for_line(syntax: Option<&Syntax>, state: &State, line_num: usize) -> usize {
let line = state.doc.line(line_num);
let current = indent_level_for_line(line);
let start = find_first_non_whitespace_char(state, line_num);
- suggested_indent_for_pos(state, start)
+ suggested_indent_for_pos(syntax, state, start)
}
-pub fn suggested_indent_for_pos(state: &State, pos: usize) -> usize {
- if let Some(syntax) = &state.syntax {
+pub fn suggested_indent_for_pos(syntax: Option<&Syntax>, state: &State, pos: usize) -> usize {
+ if let Some(syntax) = syntax {
let byte_start = state.doc.char_to_byte(pos);
let node = get_highest_syntax_node_at_bytepos(syntax, byte_start);
@@ -163,13 +163,18 @@ mod test {
",
);
- let mut state = State::new(doc);
- state.set_language("source.rust", &[]);
-
- assert_eq!(suggested_indent_for_line(&state, 0), 0); // mod
- assert_eq!(suggested_indent_for_line(&state, 1), 1); // fn
- assert_eq!(suggested_indent_for_line(&state, 2), 2); // 1 + 1
- assert_eq!(suggested_indent_for_line(&state, 4), 1); // }
- assert_eq!(suggested_indent_for_line(&state, 5), 0); // }
+ let state = State::new(doc);
+ // TODO: set_language
+ let language_config = crate::syntax::LOADER
+ .language_config_for_scope("source.rust")
+ .unwrap();
+ let highlight_config = language_config.highlight_config(&[]).unwrap().unwrap();
+ let syntax = Syntax::new(&state.doc, highlight_config.clone());
+
+ assert_eq!(suggested_indent_for_line(Some(&syntax), &state, 0), 0); // mod
+ assert_eq!(suggested_indent_for_line(Some(&syntax), &state, 1), 1); // fn
+ assert_eq!(suggested_indent_for_line(Some(&syntax), &state, 2), 2); // 1 + 1
+ assert_eq!(suggested_indent_for_line(Some(&syntax), &state, 4), 1); // }
+ assert_eq!(suggested_indent_for_line(Some(&syntax), &state, 5), 0); // }
}
}
diff --git a/helix-core/src/lib.rs b/helix-core/src/lib.rs
index 62d23a10..ddf1439c 100644
--- a/helix-core/src/lib.rs
+++ b/helix-core/src/lib.rs
@@ -1,4 +1,5 @@
#![allow(unused)]
+mod diagnostic;
pub mod graphemes;
mod history;
pub mod indent;
@@ -22,7 +23,8 @@ pub use selection::Range;
pub use selection::Selection;
pub use syntax::Syntax;
+pub use diagnostic::Diagnostic;
pub use history::History;
pub use state::State;
-pub use transaction::{Assoc, Change, ChangeSet, Transaction};
+pub use transaction::{Assoc, Change, ChangeSet, Operation, Transaction};
diff --git a/helix-core/src/selection.rs b/helix-core/src/selection.rs
index 13c820f1..9413fead 100644
--- a/helix-core/src/selection.rs
+++ b/helix-core/src/selection.rs
@@ -179,6 +179,11 @@ impl Selection {
}
}
+ /// Constructs a selection holding a single cursor.
+ pub fn point(pos: usize) -> Self {
+ Self::single(pos, pos)
+ }
+
#[must_use]
pub fn new(ranges: SmallVec<[Range; 1]>, primary_index: usize) -> Self {
fn normalize(mut ranges: SmallVec<[Range; 1]>, mut primary_index: usize) -> Selection {
diff --git a/helix-core/src/state.rs b/helix-core/src/state.rs
index 1b0a67ae..4d531aa0 100644
--- a/helix-core/src/state.rs
+++ b/helix-core/src/state.rs
@@ -1,33 +1,14 @@
use crate::graphemes::{nth_next_grapheme_boundary, nth_prev_grapheme_boundary, RopeGraphemes};
use crate::syntax::LOADER;
-use crate::{ChangeSet, Position, Range, Rope, RopeSlice, Selection, Syntax};
+use crate::{ChangeSet, Diagnostic, Position, Range, Rope, RopeSlice, Selection, Syntax};
use anyhow::Error;
-use std::path::PathBuf;
-
-#[derive(Copy, Clone, PartialEq, Eq, Hash)]
-pub enum Mode {
- Normal,
- Insert,
- Goto,
-}
-
/// A state represents the current editor state of a single buffer.
+#[derive(Clone)]
pub struct State {
// TODO: fields should be private but we need to refactor commands.rs first
- /// Path to file on disk.
- pub path: Option<PathBuf>,
pub doc: Rope,
pub selection: Selection,
- pub mode: Mode,
-
- pub restore_cursor: bool,
-
- //
- pub syntax: Option<Syntax>,
- /// Pending changes since last history commit.
- pub changes: ChangeSet,
- pub old_state: Option<(Rope, Selection)>,
}
#[derive(Copy, Clone, PartialEq, Eq)]
@@ -46,57 +27,12 @@ pub enum Granularity {
impl State {
#[must_use]
pub fn new(doc: Rope) -> Self {
- let changes = ChangeSet::new(&doc);
- let old_state = Some((doc.clone(), Selection::single(0, 0)));
-
Self {
- path: None,
doc,
selection: Selection::single(0, 0),
- mode: Mode::Normal,
- restore_cursor: false,
- syntax: None,
- changes,
- old_state,
}
}
- // TODO: passing scopes here is awkward
- pub fn load(path: PathBuf, scopes: &[String]) -> Result<Self, Error> {
- use std::{env, fs::File, io::BufReader, path::PathBuf};
- let _current_dir = env::current_dir()?;
-
- let doc = Rope::from_reader(BufReader::new(File::open(path.clone())?))?;
-
- // TODO: create if not found
-
- let mut state = Self::new(doc);
-
- if let Some(language_config) = LOADER.language_config_for_file_name(path.as_path()) {
- let highlight_config = language_config.highlight_config(scopes).unwrap().unwrap();
- // TODO: config.configure(scopes) is now delayed, is that ok?
-
- let syntax = Syntax::new(&state.doc, highlight_config.clone());
-
- state.syntax = Some(syntax);
- };
-
- state.path = Some(path);
-
- Ok(state)
- }
-
- pub fn set_language(&mut self, scope: &str, scopes: &[String]) {
- if let Some(language_config) = LOADER.language_config_for_scope(scope) {
- let highlight_config = language_config.highlight_config(scopes).unwrap().unwrap();
- // TODO: config.configure(scopes) is now delayed, is that ok?
-
- let syntax = Syntax::new(&self.doc, highlight_config.clone());
-
- self.syntax = Some(syntax);
- };
- }
-
// TODO: doc/selection accessors
// TODO: be able to take either Rope or RopeSlice
@@ -110,16 +46,6 @@ impl State {
&self.selection
}
- #[inline]
- pub fn mode(&self) -> Mode {
- self.mode
- }
-
- #[inline]
- pub fn path(&self) -> Option<&PathBuf> {
- self.path.as_ref()
- }
-
// pub fn doc<R>(&self, range: R) -> RopeSlice
// where
// R: std::ops::RangeBounds<usize>,
diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index 02903637..70d42c47 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -62,11 +62,15 @@ impl LanguageConfiguration {
})
.map(Option::as_ref)
}
+
+ pub fn scope(&self) -> &str {
+ &self.scope
+ }
}
use once_cell::sync::Lazy;
-pub(crate) static LOADER: Lazy<Loader> = Lazy::new(Loader::init);
+pub static LOADER: Lazy<Loader> = Lazy::new(Loader::init);
pub struct Loader {
// highlight_names ?
diff --git a/helix-core/src/transaction.rs b/helix-core/src/transaction.rs
index 6f3956aa..f1cb2ca1 100644
--- a/helix-core/src/transaction.rs
+++ b/helix-core/src/transaction.rs
@@ -5,8 +5,9 @@ use std::convert::TryFrom;
/// (from, to, replacement)
pub type Change = (usize, usize, Option<Tendril>);
+// TODO: pub(crate)
#[derive(Debug, Clone, PartialEq, Eq)]
-pub(crate) enum Operation {
+pub enum Operation {
/// Move cursor by n characters.
Retain(usize),
/// Delete n characters.
@@ -40,6 +41,12 @@ impl ChangeSet {
}
// TODO: from iter
+ //
+
+ #[doc(hidden)] // used by lsp to convert to LSP changes
+ pub fn changes(&self) -> &[Operation] {
+ &self.changes
+ }
#[must_use]
fn len_after(&self) -> usize {
@@ -351,22 +358,6 @@ pub struct Transaction {
// scroll_into_view
}
-/// Like std::mem::replace() except it allows the replacement value to be mapped from the
-/// original value.
-pub fn take_with<T, F>(mut_ref: &mut T, closure: F)
-where
- F: FnOnce(T) -> T,
-{
- use std::{panic, ptr};
-
- unsafe {
- let old_t = ptr::read(mut_ref);
- let new_t = panic::catch_unwind(panic::AssertUnwindSafe(|| closure(old_t)))
- .unwrap_or_else(|_| ::std::process::abort());
- ptr::write(mut_ref, new_t);
- }
-}
-
impl Transaction {
/// Create a new, empty transaction.
pub fn new(state: &mut State) -> Self {
@@ -376,29 +367,21 @@ impl Transaction {
}
}
+ pub fn changes(&self) -> &ChangeSet {
+ &self.changes
+ }
+
/// Returns true if applied successfully.
pub fn apply(&self, state: &mut State) -> bool {
if !self.changes.is_empty() {
- // TODO: also avoid mapping the selection if not necessary
-
- let old_doc = state.doc().clone();
-
// apply changes to the document
if !self.changes.apply(&mut state.doc) {
return false;
}
-
- // Compose this transaction with the previous one
- take_with(&mut state.changes, |changes| {
- changes.compose(self.changes.clone()).unwrap()
- });
-
- if let Some(syntax) = &mut state.syntax {
- // TODO: no unwrap
- syntax.update(&old_doc, &state.doc, &self.changes).unwrap();
- }
}
+ // TODO: also avoid mapping the selection if not necessary
+
// update the selection: either take the selection specified in the transaction, or map the
// current selection through changes.
state.selection = self
diff --git a/helix-lsp/Cargo.toml b/helix-lsp/Cargo.toml
new file mode 100644
index 00000000..2ecd0cc1
--- /dev/null
+++ b/helix-lsp/Cargo.toml
@@ -0,0 +1,26 @@
+[package]
+name = "helix-lsp"
+version = "0.1.0"
+authors = ["Blaž Hrastnik <blaz@mxxn.io>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+helix-core = { path = "../helix-core" }
+helix-view = { path = "../helix-view" }
+once_cell = "1.4"
+
+lsp-types = { version = "0.84", features = ["proposed"] }
+smol = "1.2"
+url = "2"
+pathdiff = "0.2"
+shellexpand = "2.0"
+glob = "0.3"
+anyhow = "1"
+serde_json = "1.0"
+serde = { version = "1.0", features = ["derive"] }
+jsonrpc-core = "15.1"
+futures-util = "0.3"
+thiserror = "1"
+log = "0.4"
diff --git a/helix-lsp/src/client.rs b/helix-lsp/src/client.rs
new file mode 100644
index 00000000..1f07cf89
--- /dev/null
+++ b/helix-lsp/src/client.rs
@@ -0,0 +1,355 @@
+use crate::{
+ transport::{Payload, Transport},
+ Call, Error,
+};
+
+type Result<T> = core::result::Result<T, Error>;
+
+use helix_core::{ChangeSet, Transaction};
+use helix_view::Document;
+
+// use std::collections::HashMap;
+use std::sync::atomic::{AtomicU64, Ordering};
+
+use jsonrpc_core as jsonrpc;
+use lsp_types as lsp;
+use serde_json::Value;
+
+use smol::{
+ channel::{Receiver, Sender},
+ io::{BufReader, BufWriter},
+ // prelude::*,
+ process::{Child, ChildStderr, Command, Stdio},
+ Executor,
+};
+
+pub struct Client {
+ _process: Child,
+ stderr: BufReader<ChildStderr>,
+
+ outgoing: Sender<Payload>,
+ pub incoming: Receiver<Call>,
+
+ pub request_counter: AtomicU64,
+
+ capabilities: Option<lsp::ServerCapabilities>,
+ // TODO: handle PublishDiagnostics Version
+ // diagnostics: HashMap<lsp::Url, Vec<lsp::Diagnostic>>,
+}
+
+impl Client {
+ pub fn start(ex: &Executor, cmd: &str, args: &[String]) -> Self {
+ let mut process = Command::new(cmd)
+ .args(args)
+ .stdin(Stdio::piped())
+ .stdout(Stdio::piped())
+ .stderr(Stdio::piped())
+ .spawn()
+ .expect("Failed to start language server");
+ // smol makes sure the process is reaped on drop, but using kill_on_drop(true) maybe?
+
+ // TODO: do we need bufreader/writer here? or do we use async wrappers on unblock?
+ let writer = BufWriter::new(process.stdin.take().expect("Failed to open stdin"));
+ let reader = BufReader::new(process.stdout.take().expect("Failed to open stdout"));
+ let stderr = BufReader::new(process.stderr.take().expect("Failed to open stderr"));
+
+ let (incoming, outgoing) = Transport::start(ex, reader, writer);
+
+ Client {
+ _process: process,
+ stderr,
+
+ outgoing,
+ incoming,
+
+ request_counter: AtomicU64::new(0),
+
+ capabilities: None,
+ // diagnostics: HashMap::new(),
+ }
+ }
+
+ fn next_request_id(&self) -> jsonrpc::Id {
+ let id = self.request_counter.fetch_add(1, Ordering::Relaxed);
+ jsonrpc::Id::Num(id)
+ }
+
+ fn to_params(value: Value) -> Result<jsonrpc::Params> {
+ use jsonrpc::Params;
+
+ let params = match value {
+ Value::Null => Params::None,
+ Value::Bool(_) | Value::Number(_) | Value::String(_) => Params::Array(vec![value]),
+ Value::Array(vec) => Params::Array(vec),
+ Value::Object(map) => Params::Map(map),
+ };
+
+ Ok(params)
+ }
+
+ /// Execute a RPC request on the language server.
+ pub async fn request<R: lsp::request::Request>(&self, params: R::Params) -> Result<R::Result>
+ where
+ R::Params: serde::Serialize,
+ R::Result: core::fmt::Debug, // TODO: temporary
+ {
+ let params = serde_json::to_value(params)?;
+
+ let request = jsonrpc::MethodCall {
+ jsonrpc: Some(jsonrpc::Version::V2),
+ id: self.next_request_id(),
+ method: R::METHOD.to_string(),
+ params: Self::to_params(params)?,
+ };
+
+ let (tx, rx) = smol::channel::bounded::<Result<Value>>(1);
+
+ self.outgoing
+ .send(Payload::Request {
+ chan: tx,
+ value: request,
+ })
+ .await
+ .map_err(|e| Error::Other(e.into()))?;
+
+ let response = rx.recv().await.map_err(|e| Error::Other(e.into()))??;
+
+ let response = serde_json::from_value(response)?;
+
+ // TODO: we should pass request to a sender thread via a channel
+ // so it can't be interleaved
+
+ // TODO: responses can be out of order, we need to register a single shot response channel
+
+ Ok(response)
+ }
+
+ /// Send a RPC notification to the language server.
+ pub async fn notify<R: lsp::notification::Notification>(&self, params: R::Params) -> Result<()>
+ where
+ R::Params: serde::Serialize,
+ {
+ let params = serde_json::to_value(params)?;
+
+ let notification = jsonrpc::Notification {
+ jsonrpc: Some(jsonrpc::Version::V2),
+ method: R::METHOD.to_string(),
+ params: Self::to_params(params)?,
+ };
+
+ self.outgoing
+ .send(Payload::Notification(notification))
+ .await
+ .map_err(|e| Error::Other(e.into()))?;
+
+ Ok(())
+ }
+
+ /// Reply to a language server RPC call.
+ pub async fn reply(
+ &self,
+ id: jsonrpc::Id,
+ result: core::result::Result<Value, jsonrpc::Error>,
+ ) -> Result<()> {
+ use jsonrpc::{Failure, Output, Success, Version};
+
+ let output = match result {
+ Ok(result) => Output::Success(Success {
+ jsonrpc: Some(Version::V2),
+ id,
+ result,
+ }),
+ Err(error) => Output::Failure(Failure {
+ jsonrpc: Some(Version::V2),
+ id,
+ error,
+ }),
+ };
+
+ self.outgoing
+ .send(Payload::Response(output))
+ .await
+ .map_err(|e| Error::Other(e.into()))?;
+
+ Ok(())
+ }
+
+ // -------------------------------------------------------------------------------------------
+ // General messages
+ // -------------------------------------------------------------------------------------------
+
+ pub async fn initialize(&mut self) -> Result<()> {
+ // TODO: delay any requests that are triggered prior to initialize
+
+ #[allow(deprecated)]
+ let params = lsp::InitializeParams {
+ process_id: Some(std::process::id()),
+ root_path: None,
+ // root_uri: Some(lsp_types::Url::parse("file://localhost/")?),
+ root_uri: None, // set to project root in the future
+ initialization_options: None,
+ capabilities: lsp::ClientCapabilities {
+ ..Default::default()
+ },
+ trace: None,
+ workspace_folders: None,
+ client_info: None,
+ locale: None, // TODO
+ };
+
+ let response = self.request::<lsp::request::Initialize>(params).await?;
+ self.capabilities = Some(response.capabilities);
+
+ // next up, notify<initialized>
+ self.notify::<lsp::notification::Initialized>(lsp::InitializedParams {})
+ .await?;
+
+ Ok(())
+ }
+
+ pub async fn shutdown(&self) -> Result<()> {
+ self.request::<lsp::request::Shutdown>(()).await
+ }
+
+ pub async fn exit(&self) -> Result<()> {
+ self.notify::<lsp::notification::Exit>(()).await
+ }
+
+ // -------------------------------------------------------------------------------------------
+ // Text document
+ // -------------------------------------------------------------------------------------------
+
+ pub async fn text_document_did_open(&mut self, doc: &Document) -> Result<()> {
+ self.notify::<lsp::notification::DidOpenTextDocument>(lsp::DidOpenTextDocumentParams {
+ text_document: lsp::TextDocumentItem {
+ uri: lsp::Url::from_file_path(doc.path().unwrap()).unwrap(),
+ language_id: "rust".to_string(), // TODO: hardcoded for now
+ version: doc.version,
+ text: String::from(doc.text()),
+ },
+ })
+ .await
+ }
+
+ fn to_changes(changeset: &ChangeSet) -> Vec<lsp::TextDocumentContentChangeEvent> {
+ let mut iter = changeset.changes().iter().peekable();
+ let mut old_pos = 0;
+
+ let mut changes = Vec::new();
+
+ use crate::util::pos_to_lsp_pos;
+ use helix_core::Operation::*;
+
+ // TEMP
+ let rope = helix_core::Rope::from("");
+ let old_text = rope.slice(..);
+
+ while let Some(change) = iter.next() {
+ let len = match change {
+ Delete(i) | Retain(i) => *i,
+ Insert(_) => 0,
+ };
+ let old_end = old_pos + len;
+
+ match change {
+ Retain(_) => {}
+ Delete(_) => {
+ let start = pos_to_lsp_pos(&old_text, old_pos);
+ let end = pos_to_lsp_pos(&old_text, old_end);
+
+ // a subsequent ins means a replace, consume it
+ if let Some(Insert(s)) = iter.peek() {
+ iter.next();
+
+ // replacement
+ changes.push(lsp::TextDocumentContentChangeEvent {
+ range: Some(lsp::Range::new(start, end)),
+ text: s.into(),
+ range_length: None,
+ });
+ } else {
+ // deletion
+ changes.push(lsp::TextDocumentContentChangeEvent {
+ range: Some(lsp::Range::new(start, end)),
+ text: "".to_string(),
+ range_length: None,
+ });
+ };
+ }
+ Insert(s) => {
+ let start = pos_to_lsp_pos(&old_text, old_pos);
+
+ // insert
+ changes.push(lsp::TextDocumentContentChangeEvent {
+ range: Some(lsp::Range::new(start, start)),
+ text: s.into(),
+ range_length: None,
+ });
+ }
+ }
+ old_pos = old_end;
+ }
+
+ changes
+ }
+
+ // TODO: trigger any time history.commit_revision happens
+ pub async fn text_document_did_change(
+ &mut self,
+ doc: &Document,
+ transaction: &Transaction,
+ ) -> Result<()> {
+ // figure out what kind of sync the server supports
+
+ let capabilities = self.capabilities.as_ref().unwrap(); // TODO: needs post init
+
+ let sync_capabilities = match capabilities.text_document_sync {
+ Some(lsp::TextDocumentSyncCapability::Kind(kind)) => kind,
+ Some(lsp::TextDocumentSyncCapability::Options(lsp::TextDocumentSyncOptions {
+ change: Some(kind),
+ ..
+ })) => kind,
+ // None | SyncOptions { changes: None }
+ _ => return Ok(()),
+ };
+
+ let changes = match sync_capabilities {
+ lsp::TextDocumentSyncKind::Full => {
+ vec![lsp::TextDocumentContentChangeEvent {
+ // range = None -> whole document
+ range: None, //Some(Range)
+ range_length: None, // u64 apparently deprecated
+ text: "".to_string(),
+ }] // TODO: probably need old_state here too?
+ }
+ lsp::TextDocumentSyncKind::Incremental => Self::to_changes(transaction.changes()),
+ lsp::TextDocumentSyncKind::None => return Ok(()),
+ };
+
+ self.notify::<lsp::notification::DidChangeTextDocument>(lsp::DidChangeTextDocumentParams {
+ text_document: lsp::VersionedTextDocumentIdentifier::new(
+ lsp::Url::from_file_path(doc.path().unwrap()).unwrap(),
+ doc.version,
+ ),
+ content_changes: changes,
+ })
+ .await
+ }
+
+ // TODO: impl into() TextDocumentIdentifier / VersionedTextDocumentIdentifier for Document.
+
+ pub async fn text_document_did_close(&mut self, doc: &Document) -> Result<()> {
+ self.notify::<lsp::notification::DidCloseTextDocument>(lsp::DidCloseTextDocumentParams {
+ text_document: lsp::TextDocumentIdentifier::new(
+ lsp::Url::from_file_path(doc.path().unwrap()).unwrap(),
+ ),
+ })
+ .await
+ }
+
+ // will_save / will_save_wait_until
+
+ pub async fn text_document_did_save(&mut self) -> anyhow::Result<()> {
+ unimplemented!()
+ }
+}
diff --git a/helix-lsp/src/lib.rs b/helix-lsp/src/lib.rs
new file mode 100644
index 00000000..eae6fa86
--- /dev/null
+++ b/helix-lsp/src/lib.rs
@@ -0,0 +1,117 @@
+mod client;
+mod transport;
+
+pub use jsonrpc_core as jsonrpc;
+pub use lsp_types as lsp;
+
+pub use once_cell::sync::{Lazy, OnceCell};
+
+pub use client::Client;
+pub use lsp::{Position, Url};
+
+use thiserror::Error;
+
+use std::{collections::HashMap, sync::Arc};
+
+#[derive(Error, Debug)]
+pub enum Error {
+ #[error("protocol error: {0}")]
+ Rpc(#[from] jsonrpc::Error),
+ #[error("failed to parse: {0}")]
+ Parse(#[from] serde_json::Error),
+ #[error("request timed out")]
+ Timeout,
+ #[error(transparent)]
+ Other(#[from] anyhow::Error),
+}
+
+pub mod util {
+ use super::*;
+
+ pub fn lsp_pos_to_pos(doc: &helix_core::RopeSlice, pos: lsp::Position) -> usize {
+ let line = doc.line_to_char(pos.line as usize);
+ let line_start = doc.char_to_utf16_cu(line);
+ doc.utf16_cu_to_char(pos.character as usize + line_start)
+ }
+ pub fn pos_to_lsp_pos(doc: &helix_core::RopeSlice, pos: usize) -> lsp::Position {
+ let line = doc.char_to_line(pos);
+ let line_start = doc.char_to_utf16_cu(line);
+ let col = doc.char_to_utf16_cu(pos) - line_start;
+
+ lsp::Position::new(line as u32, col as u32)
+ }
+}
+
+#[derive(Debug, PartialEq, Clone)]
+pub enum Notification {
+ PublishDiagnostics(lsp::PublishDiagnosticsParams),
+}
+
+impl Notification {
+ pub fn parse(method: &str, params: jsonrpc::Params) -> Notification {
+ use lsp::notification::Notification as _;
+
+ match method {
+ lsp::notification::PublishDiagnostics::METHOD => {
+ let params: lsp::PublishDiagnosticsParams = params
+ .parse()
+ .expect("Failed to parse PublishDiagnostics params");
+
+ // TODO: need to loop over diagnostics and distinguish them by URI
+ Notification::PublishDiagnostics(params)
+ }
+ _ => unimplemented!("unhandled notification: {}", method),
+ }
+ }
+}
+
+pub use jsonrpc::Call;
+
+type LanguageId = String;
+
+pub static REGISTRY: Lazy<Registry> = Lazy::new(Registry::init);
+
+pub struct Registry {
+ inner: HashMap<LanguageId, OnceCell<Arc<Client>>>,
+}
+
+impl Registry {
+ pub fn init() -> Self {
+ Self {
+ inner: HashMap::new(),
+ }
+ }
+
+ pub fn get(&self, id: &str, ex: &smol::Executor) -> Option<Arc<Client>> {
+ // TODO: use get_or_try_init and propagate the error
+ self.inner
+ .get(id)
+ .map(|cell| {
+ cell.get_or_init(|| {
+ // TODO: lookup defaults for id (name, args)
+
+ // initialize a new client
+ let client = Client::start(&ex, "rust-analyzer", &[]);
+ // TODO: also call initialize().await()
+ Arc::new(client)
+ })
+ })
+ .cloned()
+ }
+}
+
+// REGISTRY = HashMap<LanguageId, Lazy/OnceCell<Arc<RwLock<Client>>>
+// spawn one server per language type, need to spawn one per workspace if server doesn't support
+// workspaces
+//
+// could also be a client per root dir
+//
+// storing a copy of Option<Arc<RwLock<Client>>> on Document would make the LSP client easily
+// accessible during edit/save callbacks
+//
+// the event loop needs to process all incoming streams, maybe we can just have that be a separate
+// task that's continually running and store the state on the client, then use read lock to
+// retrieve data during render
+// -> PROBLEM: how do you trigger an update on the editor side when data updates?
+//
+// -> The data updates should pull all events until we run out so we don't frequently re-render
diff --git a/helix-lsp/src/transport.rs b/helix-lsp/src/transport.rs
new file mode 100644
index 00000000..4c349a13
--- /dev/null
+++ b/helix-lsp/src/transport.rs
@@ -0,0 +1,212 @@
+use std::collections::HashMap;
+
+use log::debug;
+
+use crate::{Error, Notification};
+
+type Result<T> = core::result::Result<T, Error>;
+
+use jsonrpc_core as jsonrpc;
+use serde_json::Value;
+
+use smol::prelude::*;
+
+use smol::{
+ channel::{Receiver, Sender},
+ io::{BufReader, BufWriter},
+ process::{ChildStderr, ChildStdin, ChildStdout},
+ Executor,
+};
+
+pub(crate) enum Payload {
+ Request {
+ chan: Sender<Result<Value>>,
+ value: jsonrpc::MethodCall,
+ },
+ Notification(jsonrpc::Notification),
+ Response(jsonrpc::Output),
+}
+
+use serde::{Deserialize, Serialize};
+/// A type representing all possible values sent from the server to the client.
+#[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
+#[serde(deny_unknown_fields)]
+#[serde(untagged)]
+enum Message {
+ /// A regular JSON-RPC request output (single response).
+ Output(jsonrpc::Output),
+ /// A JSON-RPC request or notification.
+ Call(jsonrpc::Call),
+}
+
+pub(crate) struct Transport {
+ incoming: Sender<jsonrpc::Call>,
+ outgoing: Receiver<Payload>,
+
+ pending_requests: HashMap<jsonrpc::Id, Sender<Result<Value>>>,
+ headers: HashMap<String, String>,
+
+ writer: BufWriter<ChildStdin>,
+ reader: BufReader<ChildStdout>,
+}
+
+impl Transport {
+ pub fn start(
+ ex: &Executor,
+ reader: BufReader<ChildStdout>,
+ writer: BufWriter<ChildStdin>,
+ ) -> (Receiver<jsonrpc::Call>, Sender<Payload>) {
+ let (incoming, rx) = smol::channel::unbounded();
+ let (tx, outgoing) = smol::channel::unbounded();
+
+ let transport = Self {
+ reader,
+ writer,
+ incoming,
+ outgoing,
+ pending_requests: Default::default(),
+ headers: Default::default(),
+ };
+
+ ex.spawn(transport.duplex()).detach();
+
+ (rx, tx)
+ }
+
+ async fn recv(
+ reader: &mut (impl AsyncBufRead + Unpin),
+ headers: &mut HashMap<String, String>,
+ ) -> core::result::Result<Message, std::io::Error> {
+ // read headers
+ loop {
+ let mut header = String::new();
+ // detect pipe closed if 0
+ reader.read_line(&mut header).await?;
+ let header = header.trim();
+
+ if header.is_empty() {
+ break;
+ }
+
+ let parts: Vec<&str> = header.split(": ").collect();
+ if parts.len() != 2 {
+ return Err(std::io::Error::new(
+ std::io::ErrorKind::Other,
+ "Failed to parse header",
+ ));
+ }
+ headers.insert(parts[0].to_string(), parts[1].to_string());
+ }
+
+ // find content-length
+ let content_length = headers.get("Content-Length").unwrap().parse().unwrap();
+
+ let mut content = vec![0; content_length];
+ reader.read_exact(&mut content).await?;
+ let msg = String::from_utf8(content).unwrap();
+
+ // read data
+
+ // try parsing as output (server response) or call (server request)
+ let output: serde_json::Result<Message> = serde_json::from_str(&msg);
+
+ Ok(output?)
+ }
+
+ pub async fn send_payload(&mut self, payload: Payload) -> anyhow::Result<()> {
+ match payload {
+ Payload::Request { chan, value } => {
+ self.pending_requests.insert(value.id.clone(), chan);
+
+ let json = serde_json::to_string(&value)?;
+ self.send(json).await
+ }
+ Payload::Notification(value) => {
+ let json = serde_json::to_string(&value)?;
+ self.send(json).await
+ }
+ Payload::Response(error) => {
+ let json = serde_json::to_string(&error)?;
+ self.send(json).await
+ }
+ }
+ }
+
+ pub async fn send(&mut self, request: String) -> anyhow::Result<()> {
+ debug!("-> {}", request);
+
+ // send the headers
+ self.writer
+ .write_all(format!("Content-Length: {}\r\n\r\n", request.len()).as_bytes())
+ .await?;
+
+ // send the body
+ self.writer.write_all(request.as_bytes()).await?;
+
+ self.writer.flush().await?;
+
+ Ok(())
+ }
+
+ async fn recv_msg(&mut self, msg: Message) -> anyhow::Result<()> {
+ match msg {
+ Message::Output(output) => self.recv_response(output).await?,
+ Message::Call(call) => {
+ self.incoming.send(call).await?;
+ // let notification = Notification::parse(&method, params);
+ }
+ };
+ Ok(())
+ }
+
+ async fn recv_response(&mut self, output: jsonrpc::Output) -> anyhow::Result<()> {
+ match output {
+ jsonrpc::Output::Success(jsonrpc::Success { id, result, .. }) => {
+ debug!("<- {}", result);
+
+ let tx = self
+ .pending_requests
+ .remove(&id)
+ .expect("pending_request with id not found!");
+ tx.send(Ok(result)).await?;
+ }
+ jsonrpc::Output::Failure(jsonrpc::Failure { id, error, .. }) => {
+ let tx = self
+ .pending_requests
+ .remove(&id)
+ .expect("pending_request with id not found!");
+ tx.send(Err(error.into())).await?;
+ }
+ msg => unimplemented!("{:?}", msg),
+ }
+ Ok(())
+ }
+
+ pub async fn duplex(mut self) {
+ use futures_util::{select, FutureExt};
+ loop {
+ select! {
+ // client -> server
+ msg = self.outgoing.next().fuse() => {
+ if msg.is_none() {
+ break;
+ }
+ let msg = msg.unwrap();
+
+ self.send_payload(msg).await.unwrap();
+ }
+ // server <- client
+ msg = Self::recv(&mut self.reader, &mut self.headers).fuse() => {
+ if msg.is_err() {
+ break;
+ }
+ let msg = msg.unwrap();
+
+ debug!("<- {:?}", msg);
+
+ self.recv_msg(msg).await.unwrap();
+ }
+ }
+ }
+ }
+}
diff --git a/helix-term/Cargo.toml b/helix-term/Cargo.toml
index ed546090..c1560ee7 100644
--- a/helix-term/Cargo.toml
+++ b/helix-term/Cargo.toml
@@ -14,12 +14,20 @@ path = "src/main.rs"
[dependencies]
helix-core = { path = "../helix-core" }
helix-view = { path = "../helix-view", features = ["term"]}
+helix-lsp = { path = "../helix-lsp"}
anyhow = "1"
smol = "1"
-num_cpus = "1.13"
+num_cpus = "1"
# tui = { version = "0.12", default-features = false, features = ["crossterm"] }
tui = { git = "https://github.com/fdehau/tui-rs", default-features = false, features = ["crossterm"] }
crossterm = { version = "0.18", features = ["event-stream"] }
clap = { version = "3.0.0-beta.2 ", default-features = false, features = ["std", "cargo"] }
+
+futures-util = "0.3"
+
+# Logging
+fern = "0.6"
+chrono = "0.4"
+log = "0.4"
diff --git a/helix-term/src/application.rs b/helix-term/src/application.rs
index 1e719f5f..141779ec 100644
--- a/helix-term/src/application.rs
+++ b/helix-term/src/application.rs
@@ -1,6 +1,14 @@
use clap::ArgMatches as Args;
-use helix_core::{indent::TAB_WIDTH, state::Mode, syntax::HighlightEvent, Position, Range, State};
-use helix_view::{commands, keymap, prompt::Prompt, Editor, View};
+use helix_core::{indent::TAB_WIDTH, syntax::HighlightEvent, Position, Range, State};
+use helix_view::{
+ commands,
+ document::Mode,
+ keymap::{self, Keymaps},
+ prompt::Prompt,
+ Document, Editor, Theme, View,
+};
+
+use log::{debug, info};
use std::{
borrow::Cow,
@@ -15,8 +23,7 @@ use anyhow::Error;
use crossterm::{
cursor,
- cursor::position,
- event::{self, read, Event, EventStream, KeyCode, KeyEvent},
+ event::{read, Event, EventStream, KeyCode, KeyEvent},
execute, queue,
terminal::{self, disable_raw_mode, enable_raw_mode},
};
@@ -25,21 +32,23 @@ use tui::{
backend::CrosstermBackend,
buffer::Buffer as Surface,
layout::Rect,
- style::{Color, Style},
+ style::{Color, Modifier, Style},
};
-const OFFSET: u16 = 6; // 5 linenr + 1 gutter
+const OFFSET: u16 = 7; // 1 diagnostic + 5 linenr + 1 gutter
type Terminal = tui::Terminal<CrosstermBackend<std::io::Stdout>>;
-static EX: smol::Executor = smol::Executor::new();
-
const BASE_WIDTH: u16 = 30;
-pub struct Application {
+pub struct Application<'a> {
editor: Editor,
prompt: Option<Prompt>,
terminal: Renderer,
+
+ keymap: Keymaps,
+ executor: &'a smol::Executor<'a>,
+ language_server: helix_lsp::Client,
}
struct Renderer {
@@ -75,30 +84,29 @@ impl Renderer {
self.cache = Surface::empty(area);
}
- pub fn render_view(&mut self, view: &mut View, viewport: Rect) {
- self.render_buffer(view, viewport);
- self.render_statusline(view);
+ pub fn render_view(&mut self, view: &mut View, viewport: Rect, theme: &Theme) {
+ self.render_buffer(view, viewport, theme);
+ self.render_statusline(view, theme);
}
// TODO: ideally not &mut View but highlights require it because of cursor cache
- pub fn render_buffer(&mut self, view: &mut View, viewport: Rect) {
+ pub fn render_buffer(&mut self, view: &mut View, viewport: Rect, theme: &Theme) {
let area = Rect::new(0, 0, self.size.0, self.size.1);
self.surface.reset(); // reset is faster than allocating new empty surface
// clear with background color
- self.surface
- .set_style(area, view.theme.get("ui.background"));
+ self.surface.set_style(area, theme.get("ui.background"));
// TODO: inefficient, should feed chunks.iter() to tree_sitter.parse_with(|offset, pos|)
- let source_code = view.state.doc().to_string();
+ let source_code = view.doc.text().to_string();
let last_line = view.last_line();
let range = {
// calculate viewport byte ranges
- let start = view.state.doc().line_to_byte(view.first_line);
- let end = view.state.doc().line_to_byte(last_line)
- + view.state.doc().line(last_line).len_bytes();
+ let start = view.doc.text().line_to_byte(view.first_line);
+ let end = view.doc.text().line_to_byte(last_line)
+ + view.doc.text().line(last_line).len_bytes();
start..end
};
@@ -106,7 +114,7 @@ impl Renderer {
// TODO: range doesn't actually restrict source, just highlight range
// TODO: cache highlight results
// TODO: only recalculate when state.doc is actually modified
- let highlights: Vec<_> = match view.state.syntax.as_mut() {
+ let highlights: Vec<_> = match view.doc.syntax.as_mut() {
Some(syntax) => {
syntax
.highlight_iter(source_code.as_bytes(), Some(range), None, |_| None)
@@ -122,6 +130,7 @@ impl Renderer {
let mut visual_x = 0;
let mut line = 0u16;
let visible_selections: Vec<Range> = view
+ .doc
.state
.selection()
.ranges()
@@ -142,15 +151,15 @@ impl Renderer {
HighlightEvent::Source { start, end } => {
// TODO: filter out spans out of viewport for now..
- let start = view.state.doc().byte_to_char(start);
- let end = view.state.doc().byte_to_char(end); // <-- index 744, len 743
+ let start = view.doc.text().byte_to_char(start);
+ let end = view.doc.text().byte_to_char(end); // <-- index 744, len 743
- let text = view.state.doc().slice(start..end);
+ let text = view.doc.text().slice(start..end);
use helix_core::graphemes::{grapheme_width, RopeGraphemes};
let style = match spans.first() {
- Some(span) => view.theme.get(view.theme.scopes()[span.0].as_str()),
+ Some(span) => theme.get(theme.scopes()[span.0].as_str()),
None => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
};
@@ -200,6 +209,16 @@ impl Renderer {
style
};
+ // ugh, improve with a traverse method
+ // or interleave highlight spans with selection and diagnostic spans
+ let style = if view.doc.diagnostics.iter().any(|diagnostic| {
+ diagnostic.range.0 <= char_index && diagnostic.range.1 > char_index
+ }) {
+ style.clone().add_modifier(Modifier::UNDERLINED)
+ } else {
+ style
+ };
+
// TODO: paint cursor heads except primary
self.surface
@@ -207,23 +226,28 @@ impl Renderer {
visual_x += width;
}
- // if grapheme == "\t"
char_index += 1;
}
}
}
}
- let style: Style = view.theme.get("ui.linenr");
+
+ let style: Style = theme.get("ui.linenr");
+ let warning: Style = theme.get("warning");
let last_line = view.last_line();
for (i, line) in (view.first_line..last_line).enumerate() {
+ if view.doc.diagnostics.iter().any(|d| d.line == line) {
+ self.surface.set_stringn(0, i as u16, "●", 1, warning);
+ }
+
self.surface
- .set_stringn(0, i as u16, format!("{:>5}", line + 1), 5, style);
+ .set_stringn(1, i as u16, format!("{:>5}", line + 1), 5, style);
}
}
- pub fn render_statusline(&mut self, view: &View) {
- let mode = match view.state.mode() {
+ pub fn render_statusline(&mut self, view: &View, theme: &Theme) {
+ let mode = match view.doc.mode() {
Mode::Insert => "INS",
Mode::Normal => "NOR",
Mode::Goto => "GOTO",
@@ -231,13 +255,20 @@ impl Renderer {
// statusline
self.surface.set_style(
Rect::new(0, self.size.1 - 2, self.size.0, 1),
- view.theme.get("ui.statusline"),
+ theme.get("ui.statusline"),
);
self.surface
.set_string(1, self.size.1 - 2, mode, self.text_color);
+
+ self.surface.set_string(
+ self.size.0 - 10,
+ self.size.1 - 2,
+ format!("{}", view.doc.diagnostics.len()),
+ self.text_color,
+ );
}
- pub fn render_prompt(&mut self, view: &View, prompt: &Prompt) {
+ pub fn render_prompt(&mut self, view: &View, prompt: &Prompt, theme: &Theme) {
// completion
if !prompt.completion.is_empty() {
// TODO: find out better way of clearing individual lines of the screen
@@ -256,7 +287,7 @@ impl Renderer {
}
self.surface.set_style(
Rect::new(0, self.size.1 - col_height - 2, self.size.0, col_height),
- view.theme.get("ui.statusline"),
+ theme.get("ui.statusline"),
);
for (i, command) in prompt.completion.iter().enumerate() {
let color = if prompt.completion_selection_index.is_some()
@@ -302,14 +333,14 @@ impl Renderer {
pub fn render_cursor(&mut self, view: &View, prompt: Option<&Prompt>, viewport: Rect) {
let mut stdout = stdout();
- match view.state.mode() {
+ match view.doc.mode() {
Mode::Insert => write!(stdout, "\x1B[6 q"),
mode => write!(stdout, "\x1B[2 q"),
};
let pos = if let Some(prompt) = prompt {
Position::new(self.size.0 as usize, 2 + prompt.cursor)
} else {
- if let Some(path) = view.state.path() {
+ if let Some(path) = view.doc.path() {
self.surface.set_string(
6,
self.size.1 - 1,
@@ -318,10 +349,10 @@ impl Renderer {
);
}
- let cursor = view.state.selection().cursor();
+ let cursor = view.doc.state.selection().cursor();
let mut pos = view
- .screen_coords_at_pos(&view.state.doc().slice(..), cursor)
+ .screen_coords_at_pos(&view.doc.text().slice(..), cursor)
.expect("Cursor is out of bounds.");
pos.col += viewport.x as usize;
pos.row += viewport.y as usize;
@@ -332,8 +363,8 @@ impl Renderer {
}
}
-impl Application {
- pub fn new(mut args: Args) -> Result<Self, Error> {
+impl<'a> Application<'a> {
+ pub fn new(mut args: Args, executor: &'a smol::Executor<'a>) -> Result<Self, Error> {
let terminal = Renderer::new()?;
let mut editor = Editor::new();
@@ -341,11 +372,18 @@ impl Application {
editor.open(file, terminal.size)?;
}
+ let language_server = helix_lsp::Client::start(&executor, "rust-analyzer", &[]);
+
let mut app = Self {
editor,
terminal,
// TODO; move to state
prompt: None,
+
+ //
+ keymap: keymap::default(),
+ executor,
+ language_server,
};
Ok(app)
@@ -354,13 +392,16 @@ impl Application {
fn render(&mut self) {
let viewport = Rect::new(OFFSET, 0, self.terminal.size.0, self.terminal.size.1 - 2); // - 2 for statusline and prompt
- if let Some(view) = &mut self.editor.view {
- self.terminal.render_view(view, viewport);
+ // SAFETY: we cheat around the view_mut() borrow because it doesn't allow us to also borrow
+ // theme. Theme is immutable mutating view won't disrupt theme_ref.
+ let theme_ref = unsafe { &*(&self.editor.theme as *const Theme) };
+ if let Some(view) = self.editor.view_mut() {
+ self.terminal.render_view(view, viewport, theme_ref);
if let Some(prompt) = &self.prompt {
if prompt.should_close {
self.prompt = None;
} else {
- self.terminal.render_prompt(view, prompt);
+ self.terminal.render_prompt(view, prompt, theme_ref);
}
}
}
@@ -368,16 +409,19 @@ impl Application {
self.terminal.draw();
// TODO: drop unwrap
- self.terminal.render_cursor(
- self.editor.view.as_ref().unwrap(),
- self.prompt.as_ref(),
- viewport,
- );
+ self.terminal
+ .render_cursor(self.editor.view().unwrap(), self.prompt.as_ref(), viewport);
}
pub async fn event_loop(&mut self) {
let mut reader = EventStream::new();
- let keymap = keymap::default();
+
+ // initialize lsp
+ self.language_server.initialize().await.unwrap();
+ self.language_server
+ .text_document_did_open(&self.editor.view().unwrap().doc)
+ .await
+ .unwrap();
self.render();
@@ -386,125 +430,225 @@ impl Application {
break;
}
- // Handle key events
- match reader.next().await {
- Some(Ok(Event::Resize(width, height))) => {
- self.terminal.resize(width, height);
+ use futures_util::{select, FutureExt};
+ select! {
+ event = reader.next().fuse() => {
+ self.handle_terminal_events(event).await
+ }
+ call = self.language_server.incoming.next().fuse() => {
+ self.handle_language_server_message(call).await
+ }
+ }
+ }
+ }
- // TODO: simplistic ensure cursor in view for now
- if let Some(view) = &mut self.editor.view {
- view.size = self.terminal.size;
- view.ensure_cursor_in_view()
- };
+ pub async fn handle_terminal_events(
+ &mut self,
+ event: Option<Result<Event, crossterm::ErrorKind>>,
+ ) {
+ // Handle key events
+ match event {
+ Some(Ok(Event::Resize(width, height))) => {
+ self.terminal.resize(width, height);
+
+ // TODO: simplistic ensure cursor in view for now
+ // TODO: loop over views
+ if let Some(view) = self.editor.view_mut() {
+ view.size = self.terminal.size;
+ view.ensure_cursor_in_view()
+ };
+
+ self.render();
+ }
+ Some(Ok(Event::Key(event))) => {
+ // if there's a prompt, it takes priority
+ if let Some(prompt) = &mut self.prompt {
+ self.prompt
+ .as_mut()
+ .unwrap()
+ .handle_input(event, &mut self.editor);
self.render();
- }
- Some(Ok(Event::Key(event))) => {
- // if there's a prompt, it takes priority
- if let Some(prompt) = &mut self.prompt {
- self.prompt
- .as_mut()
- .unwrap()
- .handle_input(event, &mut self.editor);
-
- self.render();
- } else if let Some(view) = &mut self.editor.view {
- let keys = vec![event];
- // TODO: sequences (`gg`)
- // TODO: handle count other than 1
- match view.state.mode() {
- Mode::Insert => {
- if let Some(command) = keymap[&Mode::Insert].get(&keys) {
- command(view, 1);
- } else if let KeyEvent {
- code: KeyCode::Char(c),
- ..
- } = event
- {
- commands::insert::insert_char(view, c);
- }
+ } else if let Some(view) = self.editor.view_mut() {
+ let keys = vec![event];
+ // TODO: sequences (`gg`)
+ // TODO: handle count other than 1
+ match view.doc.mode() {
+ Mode::Insert => {
+ if let Some(command) = self.keymap[&Mode::Insert].get(&keys) {
+ let mut cx = helix_view::commands::Context {
+ view,
+ executor: self.executor,
+ count: 1,
+ };
+
+ command(&mut cx);
+ } else if let KeyEvent {
+ code: KeyCode::Char(c),
+ ..
+ } = event
+ {
+ let mut cx = helix_view::commands::Context {
+ view,
+ executor: self.executor,
+ count: 1,
+ };
+ commands::insert::insert_char(&mut cx, c);
+ }
+ view.ensure_cursor_in_view();
+ }
+ Mode::Normal => {
+ if let &[KeyEvent {
+ code: KeyCode::Char(':'),
+ ..
+ }] = keys.as_slice()
+ {
+ let prompt = Prompt::new(
+ ":".to_owned(),
+ |_input: &str| {
+ // TODO: i need this duplicate list right now to avoid borrow checker issues
+ let command_list = vec![
+ String::from("q"),
+ String::from("aaa"),
+ String::from("bbb"),
+ String::from("ccc"),
+ String::from("ddd"),
+ String::from("eee"),
+ String::from("averylongcommandaverylongcommandaverylongcommandaverylongcommandaverylongcommand"),
+ String::from("q"),
+ String::from("aaa"),
+ String::from("bbb"),
+ String::from("ccc"),
+ String::from("ddd"),
+ String::from("eee"),
+ String::from("q"),
+ String::from("aaa"),
+ String::from("bbb"),
+ String::from("ccc"),
+ String::from("ddd"),
+ String::from("eee"),
+ String::from("q"),
+ String::from("aaa"),
+ String::from("bbb"),
+ String::from("ccc"),
+ String::from("ddd"),
+ String::from("eee"),
+ String::from("q"),
+ String::from("aaa"),
+ String::from("bbb"),
+ String::from("ccc"),
+ String::from("ddd"),
+ String::from("eee"),
+ ];
+ command_list
+ .into_iter()
+ .filter(|command| command.contains(_input))
+ .collect()
+ }, // completion
+ |editor: &mut Editor, input: &str| match input {
+ "q" => editor.should_close = true,
+ _ => (),
+ },
+ );
+
+ self.prompt = Some(prompt);
+
+ // HAXX: special casing for command mode
+ } else if let Some(command) = self.keymap[&Mode::Normal].get(&keys) {
+ let mut cx = helix_view::commands::Context {
+ view,
+ executor: self.executor,
+ count: 1,
+ };
+ command(&mut cx);
+
+ // TODO: simplistic ensure cursor in view for now
view.ensure_cursor_in_view();
}
- Mode::Normal => {
- if let &[KeyEvent {
- code: KeyCode::Char(':'),
- ..
- }] = keys.as_slice()
- {
- let prompt = Prompt::new(
- ":".to_owned(),
- |_input: &str| {
- // TODO: i need this duplicate list right now to avoid borrow checker issues
- let command_list = vec![
- String::from("q"),
- String::from("aaa"),
- String::from("bbb"),
- String::from("ccc"),
- String::from("ddd"),
- String::from("eee"),
- String::from("averylongcommandaverylongcommandaverylongcommandaverylongcommandaverylongcommand"),
- String::from("q"),
- String::from("aaa"),
- String::from("bbb"),
- String::from("ccc"),
- String::from("ddd"),
- String::from("eee"),
- String::from("q"),
- String::from("aaa"),
- String::from("bbb"),
- String::from("ccc"),
- String::from("ddd"),
- String::from("eee"),
- String::from("q"),
- String::from("aaa"),
- String::from("bbb"),
- String::from("ccc"),
- String::from("ddd"),
- String::from("eee"),
- String::from("q"),
- String::from("aaa"),
- String::from("bbb"),
- String::from("ccc"),
- String::from("ddd"),
- String::from("eee"),
- ];
- command_list
- .into_iter()
- .filter(|command| command.contains(_input))
- .collect()
- }, // completion
- |editor: &mut Editor, input: &str| match input {
- "q" => editor.should_close = true,
- _ => (),
- },
- );
-
- self.prompt = Some(prompt);
-
- // HAXX: special casing for command mode
- } else if let Some(command) = keymap[&Mode::Normal].get(&keys) {
- command(view, 1);
-
- // TODO: simplistic ensure cursor in view for now
- view.ensure_cursor_in_view();
- }
+ }
+ mode => {
+ if let Some(command) = self.keymap[&mode].get(&keys) {
+ let mut cx = helix_view::commands::Context {
+ view,
+ executor: self.executor,
+ count: 1,
+ };
+ command(&mut cx);
+
+ // TODO: simplistic ensure cursor in view for now
+ view.ensure_cursor_in_view();
}
- mode => {
- if let Some(command) = keymap[&mode].get(&keys) {
- command(view, 1);
+ }
+ }
+ self.render();
+ }
+ }
+ Some(Ok(Event::Mouse(_))) => (), // unhandled
+ Some(Err(x)) => panic!(x),
+ None => panic!(),
+ };
+ }
- // TODO: simplistic ensure cursor in view for now
- view.ensure_cursor_in_view();
- }
- }
+ pub async fn handle_language_server_message(&mut self, call: Option<helix_lsp::Call>) {
+ use helix_lsp::{Call, Notification};
+ match call {
+ Some(Call::Notification(helix_lsp::jsonrpc::Notification {
+ method, params, ..
+ })) => {
+ let notification = Notification::parse(&method, params);
+ match notification {
+ Notification::PublishDiagnostics(params) => {
+ let path = Some(params.uri.to_file_path().unwrap());
+ let view = self
+ .editor
+ .views
+ .iter_mut()
+ .find(|view| view.doc.path == path);
+
+ if let Some(view) = view {
+ let doc = view.doc.text().slice(..);
+ let diagnostics = params
+ .diagnostics
+ .into_iter()
+ .map(|diagnostic| {
+ use helix_lsp::util::lsp_pos_to_pos;
+ let start = lsp_pos_to_pos(&doc, diagnostic.range.start);
+ let end = lsp_pos_to_pos(&doc, diagnostic.range.end);
+
+ helix_core::Diagnostic {
+ range: (start, end),
+ line: diagnostic.range.start.line as usize,
+ message: diagnostic.message,
+ // severity
+ // code
+ // source
+ }
+ })
+ .collect();
+
+ view.doc.diagnostics = diagnostics;
+
+ // TODO: we want to process all the events in queue, then render. publishDiagnostic tends to send a whole bunch of events
+ self.render();
}
- self.render();
}
+ _ => unreachable!(),
}
- Some(Ok(Event::Mouse(_))) => (), // unhandled
- Some(Err(x)) => panic!(x),
- None => break,
}
+ Some(Call::MethodCall(call)) => {
+ debug!("Method not found {}", call.method);
+
+ self.language_server.reply(
+ call.id,
+ // TODO: make a Into trait that can cast to Err(jsonrpc::Error)
+ Err(helix_lsp::jsonrpc::Error {
+ code: helix_lsp::jsonrpc::ErrorCode::MethodNotFound,
+ message: "Method not found".to_string(),
+ data: None,
+ }),
+ );
+ }
+ _ => unreachable!(),
}
}
diff --git a/helix-term/src/main.rs b/helix-term/src/main.rs
index e14a328f..9378d3ee 100644
--- a/helix-term/src/main.rs
+++ b/helix-term/src/main.rs
@@ -11,6 +11,39 @@ use anyhow::Error;
static EX: smol::Executor = smol::Executor::new();
+fn setup_logging(verbosity: u64) -> Result<(), fern::InitError> {
+ let mut base_config = fern::Dispatch::new();
+
+ // Let's say we depend on something which whose "info" level messages are too
+ // verbose to include in end-user output. If we don't need them,
+ // let's not include them.
+ // .level_for("overly-verbose-target", log::LevelFilter::Warn)
+
+ base_config = match verbosity {
+ 0 => base_config.level(log::LevelFilter::Warn),
+ 1 => base_config.level(log::LevelFilter::Info),
+ 2 => base_config.level(log::LevelFilter::Debug),
+ _3_or_more => base_config.level(log::LevelFilter::Trace),
+ };
+
+ // Separate file config so we can include year, month and day in file logs
+ let file_config = fern::Dispatch::new()
+ .format(|out, message, record| {
+ out.finish(format_args!(
+ "{} {} [{}] {}",
+ chrono::Local::now().format("%Y-%m-%dT%H:%M:%S%.3f"),
+ record.target(),
+ record.level(),
+ message
+ ))
+ })
+ .chain(fern::log_file("helix.log")?);
+
+ base_config.chain(file_config).apply()?;
+
+ Ok(())
+}
+
fn main() -> Result<(), Error> {
let args = clap::app_from_crate!()
.arg(
@@ -20,15 +53,27 @@ fn main() -> Result<(), Error> {
.multiple(true)
.index(1),
)
+ .arg(
+ Arg::new("verbose")
+ .about("Increases logging verbosity each use for up to 3 times")
+ .short('v')
+ .takes_value(false)
+ .multiple_occurrences(true),
+ )
.get_matches();
+ let verbosity: u64 = args.occurrences_of("verbose");
+
+ setup_logging(verbosity).expect("failed to initialize logging.");
+
for _ in 0..num_cpus::get() {
std::thread::spawn(move || smol::block_on(EX.run(smol::future::pending::<()>())));
}
- smol::block_on(EX.run(async {
- Application::new(args).unwrap().run().await;
- }));
+ let mut app = Application::new(args, &EX).unwrap();
+
+ // we use the thread local executor to spawn the application task separately from the work pool
+ smol::block_on(app.run());
Ok(())
}
diff --git a/helix-view/Cargo.toml b/helix-view/Cargo.toml
index 330ae696..0a48b721 100644
--- a/helix-view/Cargo.toml
+++ b/helix-view/Cargo.toml
@@ -19,3 +19,6 @@ helix-core = { path = "../helix-core" }
tui = { git = "https://github.com/fdehau/tui-rs", default-features = false, features = ["crossterm"], optional = true}
crossterm = { version = "0.18", features = ["event-stream"], optional = true}
once_cell = "1.4"
+url = "2"
+
+smol = "1"
diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs
index 1d7737f0..c135a3da 100644
--- a/helix-view/src/commands.rs
+++ b/helix-view/src/commands.rs
@@ -3,52 +3,65 @@ use helix_core::{
indent::TAB_WIDTH,
regex::Regex,
register, selection,
- state::{Direction, Granularity, Mode, State},
+ state::{Direction, Granularity, State},
ChangeSet, Range, Selection, Tendril, Transaction,
};
use once_cell::sync::Lazy;
use crate::{
+ document::Mode,
prompt::Prompt,
view::{View, PADDING},
};
+pub struct Context<'a, 'b> {
+ pub count: usize,
+ pub view: &'a mut View,
+ pub executor: &'a smol::Executor<'b>,
+}
+
/// A command is a function that takes the current state and a count, and does a side-effect on the
/// state (usually by creating and applying a transaction).
-pub type Command = fn(view: &mut View, count: usize);
+pub type Command = fn(cx: &mut Context);
-pub fn move_char_left(view: &mut View, count: usize) {
- // TODO: use a transaction
- let selection = view
- .state
- .move_selection(Direction::Backward, Granularity::Character, count);
- view.state.selection = selection;
+pub fn move_char_left(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .move_selection(Direction::Backward, Granularity::Character, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn move_char_right(view: &mut View, count: usize) {
- // TODO: use a transaction
- view.state.selection =
- view.state
- .move_selection(Direction::Forward, Granularity::Character, count);
+pub fn move_char_right(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .move_selection(Direction::Forward, Granularity::Character, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn move_line_up(view: &mut View, count: usize) {
- // TODO: use a transaction
- view.state.selection = view
- .state
- .move_selection(Direction::Backward, Granularity::Line, count);
+pub fn move_line_up(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .move_selection(Direction::Backward, Granularity::Line, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn move_line_down(view: &mut View, count: usize) {
- // TODO: use a transaction
- view.state.selection = view
- .state
- .move_selection(Direction::Forward, Granularity::Line, count);
+pub fn move_line_down(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .move_selection(Direction::Forward, Granularity::Line, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn move_line_end(view: &mut View, _count: usize) {
- // TODO: use a transaction
- let lines = selection_lines(&view.state);
+pub fn move_line_end(cx: &mut Context) {
+ let lines = selection_lines(&cx.view.doc.state);
let positions = lines
.into_iter()
@@ -57,89 +70,80 @@ pub fn move_line_end(view: &mut View, _count: usize) {
// Line end is pos at the start of next line - 1
// subtract another 1 because the line ends with \n
- view.state.doc.line_to_char(index + 1).saturating_sub(2)
+ cx.view.doc.text().line_to_char(index + 1).saturating_sub(2)
})
.map(|pos| Range::new(pos, pos));
let selection = Selection::new(positions.collect(), 0);
- let transaction = Transaction::new(&mut view.state).with_selection(selection);
-
- transaction.apply(&mut view.state);
+ cx.view.doc.set_selection(selection);
}
-pub fn move_line_start(view: &mut View, _count: usize) {
- let lines = selection_lines(&view.state);
+pub fn move_line_start(cx: &mut Context) {
+ let lines = selection_lines(&cx.view.doc.state);
let positions = lines
.into_iter()
.map(|index| {
// adjust all positions to the start of the line.
- view.state.doc.line_to_char(index)
+ cx.view.doc.text().line_to_char(index)
})
.map(|pos| Range::new(pos, pos));
let selection = Selection::new(positions.collect(), 0);
- let transaction = Transaction::new(&mut view.state).with_selection(selection);
-
- transaction.apply(&mut view.state);
+ cx.view.doc.set_selection(selection);
}
-pub fn move_next_word_start(view: &mut View, count: usize) {
- let pos = view.state.move_pos(
- view.state.selection.cursor(),
+pub fn move_next_word_start(cx: &mut Context) {
+ let pos = cx.view.doc.state.move_pos(
+ cx.view.doc.selection().cursor(),
Direction::Forward,
Granularity::Word,
- count,
+ cx.count,
);
- // TODO: use a transaction
- view.state.selection = Selection::single(pos, pos);
+ cx.view.doc.set_selection(Selection::point(pos));
}
-pub fn move_prev_word_start(view: &mut View, count: usize) {
- let pos = view.state.move_pos(
- view.state.selection.cursor(),
+pub fn move_prev_word_start(cx: &mut Context) {
+ let pos = cx.view.doc.state.move_pos(
+ cx.view.doc.selection().cursor(),
Direction::Backward,
Granularity::Word,
- count,
+ cx.count,
);
- // TODO: use a transaction
- view.state.selection = Selection::single(pos, pos);
+ cx.view.doc.set_selection(Selection::point(pos));
}
-pub fn move_next_word_end(view: &mut View, count: usize) {
+pub fn move_next_word_end(cx: &mut Context) {
let pos = State::move_next_word_end(
- &view.state.doc().slice(..),
- view.state.selection.cursor(),
- count,
+ &cx.view.doc.text().slice(..),
+ cx.view.doc.selection().cursor(),
+ cx.count,
);
- // TODO: use a transaction
- view.state.selection = Selection::single(pos, pos);
+ cx.view.doc.set_selection(Selection::point(pos));
}
-pub fn move_file_start(view: &mut View, _count: usize) {
- // TODO: use a transaction
- view.state.selection = Selection::single(0, 0);
+pub fn move_file_start(cx: &mut Context) {
+ cx.view.doc.set_selection(Selection::point(0));
- view.state.mode = Mode::Normal;
+ cx.view.doc.mode = Mode::Normal;
}
-pub fn move_file_end(view: &mut View, _count: usize) {
- // TODO: use a transaction
- let text = &view.state.doc;
+pub fn move_file_end(cx: &mut Context) {
+ let text = &cx.view.doc.text();
let last_line = text.line_to_char(text.len_lines().saturating_sub(2));
- view.state.selection = Selection::single(last_line, last_line);
+ cx.view.doc.set_selection(Selection::point(last_line));
- view.state.mode = Mode::Normal;
+ cx.view.doc.mode = Mode::Normal;
}
-pub fn check_cursor_in_view(view: &mut View) -> bool {
- let cursor = view.state.selection().cursor();
- let line = view.state.doc().char_to_line(cursor);
+pub fn check_cursor_in_view(view: &View) -> bool {
+ let cursor = view.doc.selection().cursor();
+ let line = view.doc.text().char_to_line(cursor);
let document_end = view.first_line + view.size.1.saturating_sub(1) as usize;
if (line > document_end.saturating_sub(PADDING)) | (line < view.first_line + PADDING) {
@@ -148,168 +152,186 @@ pub fn check_cursor_in_view(view: &mut View) -> bool {
true
}
-pub fn page_up(view: &mut View, _count: usize) {
- if view.first_line < PADDING {
+pub fn page_up(cx: &mut Context) {
+ if cx.view.first_line < PADDING {
return;
}
- view.first_line = view.first_line.saturating_sub(view.size.1 as usize);
+ cx.view.first_line = cx.view.first_line.saturating_sub(cx.view.size.1 as usize);
- if !check_cursor_in_view(view) {
- let text = view.state.doc();
- let pos = text.line_to_char(view.last_line().saturating_sub(PADDING));
- view.state.selection = Selection::single(pos, pos);
+ if !check_cursor_in_view(cx.view) {
+ let text = cx.view.doc.text();
+ let pos = text.line_to_char(cx.view.last_line().saturating_sub(PADDING));
+ cx.view.doc.set_selection(Selection::point(pos));
}
}
-pub fn page_down(view: &mut View, _count: usize) {
- view.first_line += view.size.1 as usize + PADDING;
+pub fn page_down(cx: &mut Context) {
+ cx.view.first_line += cx.view.size.1 as usize + PADDING;
- if view.first_line < view.state.doc().len_lines() {
- let text = view.state.doc();
- let pos = text.line_to_char(view.first_line as usize);
- view.state.selection = Selection::single(pos, pos);
+ if cx.view.first_line < cx.view.doc.text().len_lines() {
+ let text = cx.view.doc.text();
+ let pos = text.line_to_char(cx.view.first_line as usize);
+ cx.view.doc.set_selection(Selection::point(pos));
}
}
-pub fn half_page_up(view: &mut View, _count: usize) {
- if view.first_line < PADDING {
+pub fn half_page_up(cx: &mut Context) {
+ if cx.view.first_line < PADDING {
return;
}
- view.first_line = view.first_line.saturating_sub(view.size.1 as usize / 2);
+ cx.view.first_line = cx
+ .view
+ .first_line
+ .saturating_sub(cx.view.size.1 as usize / 2);
- if !check_cursor_in_view(view) {
- let text = &view.state.doc;
- let pos = text.line_to_char(view.last_line() - PADDING);
- view.state.selection = Selection::single(pos, pos);
+ if !check_cursor_in_view(cx.view) {
+ let text = &cx.view.doc.text();
+ let pos = text.line_to_char(cx.view.last_line() - PADDING);
+ cx.view.doc.set_selection(Selection::point(pos));
}
}
-pub fn half_page_down(view: &mut View, _count: usize) {
- let lines = view.state.doc().len_lines();
- if view.first_line < lines.saturating_sub(view.size.1 as usize) {
- view.first_line += view.size.1 as usize / 2;
+pub fn half_page_down(cx: &mut Context) {
+ let lines = cx.view.doc.text().len_lines();
+ if cx.view.first_line < lines.saturating_sub(cx.view.size.1 as usize) {
+ cx.view.first_line += cx.view.size.1 as usize / 2;
}
- if !check_cursor_in_view(view) {
- let text = view.state.doc();
- let pos = text.line_to_char(view.first_line as usize);
- view.state.selection = Selection::single(pos, pos);
+ if !check_cursor_in_view(cx.view) {
+ let text = cx.view.doc.text();
+ let pos = text.line_to_char(cx.view.first_line as usize);
+ cx.view.doc.set_selection(Selection::point(pos));
}
}
// avoid select by default by having a visual mode switch that makes movements into selects
-pub fn extend_char_left(view: &mut View, count: usize) {
- // TODO: use a transaction
- let selection = view
- .state
- .extend_selection(Direction::Backward, Granularity::Character, count);
- view.state.selection = selection;
+pub fn extend_char_left(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .extend_selection(Direction::Backward, Granularity::Character, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn extend_char_right(view: &mut View, count: usize) {
- // TODO: use a transaction
- view.state.selection =
- view.state
- .extend_selection(Direction::Forward, Granularity::Character, count);
+pub fn extend_char_right(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .extend_selection(Direction::Forward, Granularity::Character, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn extend_line_up(view: &mut View, count: usize) {
- // TODO: use a transaction
- view.state.selection =
- view.state
- .extend_selection(Direction::Backward, Granularity::Line, count);
+pub fn extend_line_up(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .extend_selection(Direction::Backward, Granularity::Line, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn extend_line_down(view: &mut View, count: usize) {
- // TODO: use a transaction
- view.state.selection =
- view.state
- .extend_selection(Direction::Forward, Granularity::Line, count);
+pub fn extend_line_down(cx: &mut Context) {
+ let selection =
+ cx.view
+ .doc
+ .state
+ .extend_selection(Direction::Forward, Granularity::Line, cx.count);
+ cx.view.doc.set_selection(selection);
}
-pub fn split_selection_on_newline(view: &mut View, _count: usize) {
- let text = &view.state.doc.slice(..);
+pub fn split_selection_on_newline(cx: &mut Context) {
+ let text = &cx.view.doc.text().slice(..);
// only compile the regex once
#[allow(clippy::trivial_regex)]
static REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\n").unwrap());
- // TODO: use a transaction
- view.state.selection = selection::split_on_matches(text, view.state.selection(), &REGEX)
+ let selection = selection::split_on_matches(text, cx.view.doc.selection(), &REGEX);
+ cx.view.doc.set_selection(selection);
}
-pub fn select_line(view: &mut View, _count: usize) {
+pub fn select_line(cx: &mut Context) {
// TODO: count
- let pos = view.state.selection().primary();
- let text = view.state.doc();
+ let pos = cx.view.doc.selection().primary();
+ let text = cx.view.doc.text();
let line = text.char_to_line(pos.head);
let start = text.line_to_char(line);
let end = text.line_to_char(line + 1).saturating_sub(1);
- // TODO: use a transaction
- view.state.selection = Selection::single(start, end);
+ cx.view.doc.set_selection(Selection::single(start, end));
}
-pub fn delete_selection(view: &mut View, _count: usize) {
- let transaction =
- Transaction::change_by_selection(&view.state, |range| (range.from(), range.to() + 1, None));
- transaction.apply(&mut view.state);
+pub fn delete_selection(cx: &mut Context) {
+ let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
+ (range.from(), range.to() + 1, None)
+ });
+ cx.view.doc.apply(&transaction);
- append_changes_to_history(view);
+ append_changes_to_history(cx);
}
-pub fn change_selection(view: &mut View, count: usize) {
- delete_selection(view, count);
- insert_mode(view, count);
+pub fn change_selection(cx: &mut Context) {
+ delete_selection(cx);
+ insert_mode(cx);
}
-pub fn collapse_selection(view: &mut View, _count: usize) {
- view.state.selection = view
- .state
- .selection
- .transform(|range| Range::new(range.head, range.head))
+pub fn collapse_selection(cx: &mut Context) {
+ let selection = cx
+ .view
+ .doc
+ .selection()
+ .transform(|range| Range::new(range.head, range.head));
+
+ cx.view.doc.set_selection(selection);
}
-pub fn flip_selections(view: &mut View, _count: usize) {
- view.state.selection = view
- .state
- .selection
- .transform(|range| Range::new(range.head, range.anchor))
+pub fn flip_selections(cx: &mut Context) {
+ let selection = cx
+ .view
+ .doc
+ .selection()
+ .transform(|range| Range::new(range.head, range.anchor));
+
+ cx.view.doc.set_selection(selection);
}
-fn enter_insert_mode(view: &mut View) {
- view.state.mode = Mode::Insert;
+fn enter_insert_mode(cx: &mut Context) {
+ cx.view.doc.mode = Mode::Insert;
- append_changes_to_history(view);
+ append_changes_to_history(cx);
}
// inserts at the start of each selection
-pub fn insert_mode(view: &mut View, _count: usize) {
- enter_insert_mode(view);
+pub fn insert_mode(cx: &mut Context) {
+ enter_insert_mode(cx);
- view.state.selection = view
- .state
- .selection
- .transform(|range| Range::new(range.to(), range.from()))
+ let selection = cx
+ .view
+ .doc
+ .selection()
+ .transform(|range| Range::new(range.to(), range.from()));
+ cx.view.doc.set_selection(selection);
}
// inserts at the end of each selection
-pub fn append_mode(view: &mut View, _count: usize) {
- enter_insert_mode(view);
- view.state.restore_cursor = true;
+pub fn append_mode(cx: &mut Context) {
+ enter_insert_mode(cx);
+ cx.view.doc.restore_cursor = true;
// TODO: as transaction
- let text = &view.state.doc.slice(..);
- view.state.selection = view.state.selection.transform(|range| {
+ let text = &cx.view.doc.text().slice(..);
+ let selection = cx.view.doc.selection().transform(|range| {
// TODO: to() + next char
Range::new(
range.from(),
graphemes::next_grapheme_boundary(text, range.to()),
)
- })
+ });
+ cx.view.doc.set_selection(selection);
}
// TODO: I, A, o and O can share a lot of the primitives.
-
-pub fn command_mode(_view: &mut View, _count: usize) {
+pub fn command_mode(_cx: &mut Context) {
unimplemented!()
}
@@ -329,30 +351,30 @@ fn selection_lines(state: &State) -> Vec<usize> {
}
// I inserts at the start of each line with a selection
-pub fn prepend_to_line(view: &mut View, count: usize) {
- enter_insert_mode(view);
+pub fn prepend_to_line(cx: &mut Context) {
+ enter_insert_mode(cx);
- move_line_start(view, count);
+ move_line_start(cx);
}
// A inserts at the end of each line with a selection
-pub fn append_to_line(view: &mut View, count: usize) {
- enter_insert_mode(view);
+pub fn append_to_line(cx: &mut Context) {
+ enter_insert_mode(cx);
- move_line_end(view, count);
+ move_line_end(cx);
}
// o inserts a new line after each line with a selection
-pub fn open_below(view: &mut View, _count: usize) {
- enter_insert_mode(view);
+pub fn open_below(cx: &mut Context) {
+ enter_insert_mode(cx);
- let lines = selection_lines(&view.state);
+ let lines = selection_lines(&cx.view.doc.state);
let positions: Vec<_> = lines
.into_iter()
.map(|index| {
// adjust all positions to the end of the line/start of the next one.
- view.state.doc.line_to_char(index + 1)
+ cx.view.doc.text().line_to_char(index + 1)
})
.collect();
@@ -373,111 +395,119 @@ pub fn open_below(view: &mut View, _count: usize) {
0,
);
- let transaction = Transaction::change(&view.state, changes).with_selection(selection);
+ let transaction = Transaction::change(&cx.view.doc.state, changes).with_selection(selection);
- transaction.apply(&mut view.state);
+ cx.view.doc.apply(&transaction);
}
// O inserts a new line before each line with a selection
-fn append_changes_to_history(view: &mut View) {
- if view.state.changes.is_empty() {
+fn append_changes_to_history(cx: &mut Context) {
+ if cx.view.doc.changes.is_empty() {
return;
}
- let new_changeset = ChangeSet::new(view.state.doc());
- let changes = std::mem::replace(&mut view.state.changes, new_changeset);
+ let new_changeset = ChangeSet::new(cx.view.doc.text());
+ let changes = std::mem::replace(&mut cx.view.doc.changes, new_changeset);
// Instead of doing this messy merge we could always commit, and based on transaction
// annotations either add a new layer or compose into the previous one.
- let transaction = Transaction::from(changes).with_selection(view.state.selection().clone());
+ let transaction = Transaction::from(changes).with_selection(cx.view.doc.selection().clone());
- // HAXX: we need to reconstruct the state as it was before the changes..
- let (doc, selection) = view.state.old_state.take().unwrap();
- let mut old_state = State::new(doc);
- old_state.selection = selection;
+ // increment document version
+ // TODO: needs to happen on undo/redo too
+ cx.view.doc.version += 1;
+ // TODO: trigger lsp/documentDidChange with changes
+
+ // HAXX: we need to reconstruct the state as it was before the changes..
+ let old_state = std::mem::replace(&mut cx.view.doc.old_state, cx.view.doc.state.clone());
// TODO: take transaction by value?
- view.history.commit_revision(&transaction, &old_state);
+ cx.view
+ .doc
+ .history
+ .commit_revision(&transaction, &old_state);
- // TODO: need to start the state with these vals
- // HAXX
- view.state.old_state = Some((view.state.doc().clone(), view.state.selection.clone()));
+ // TODO: notify LSP of changes
}
-pub fn normal_mode(view: &mut View, _count: usize) {
- view.state.mode = Mode::Normal;
+pub fn normal_mode(cx: &mut Context) {
+ cx.view.doc.mode = Mode::Normal;
- append_changes_to_history(view);
+ append_changes_to_history(cx);
// if leaving append mode, move cursor back by 1
- if view.state.restore_cursor {
- let text = &view.state.doc.slice(..);
- view.state.selection = view.state.selection.transform(|range| {
+ if cx.view.doc.restore_cursor {
+ let text = &cx.view.doc.text().slice(..);
+ let selection = cx.view.doc.selection().transform(|range| {
Range::new(
range.from(),
graphemes::prev_grapheme_boundary(text, range.to()),
)
});
+ cx.view.doc.set_selection(selection);
- view.state.restore_cursor = false;
+ cx.view.doc.restore_cursor = false;
}
}
-pub fn goto_mode(view: &mut View, _count: usize) {
- view.state.mode = Mode::Goto;
+pub fn goto_mode(cx: &mut Context) {
+ cx.view.doc.mode = Mode::Goto;
}
// NOTE: Transactions in this module get appended to history when we switch back to normal mode.
pub mod insert {
use super::*;
// TODO: insert means add text just before cursor, on exit we should be on the last letter.
- pub fn insert_char(view: &mut View, c: char) {
+ pub fn insert_char(cx: &mut Context, c: char) {
let c = Tendril::from_char(c);
- let transaction = Transaction::insert(&view.state, c);
+ let transaction = Transaction::insert(&cx.view.doc.state, c);
- transaction.apply(&mut view.state);
+ cx.view.doc.apply(&transaction);
}
- pub fn insert_tab(view: &mut View, _count: usize) {
- insert_char(view, '\t');
+ pub fn insert_tab(cx: &mut Context) {
+ insert_char(cx, '\t');
}
- pub fn insert_newline(view: &mut View, _count: usize) {
- let transaction = Transaction::change_by_selection(&view.state, |range| {
- let indent_level =
- helix_core::indent::suggested_indent_for_pos(&view.state, range.head);
+ pub fn insert_newline(cx: &mut Context) {
+ let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
+ let indent_level = helix_core::indent::suggested_indent_for_pos(
+ cx.view.doc.syntax.as_ref(),
+ &cx.view.doc.state,
+ range.head,
+ );
let indent = " ".repeat(TAB_WIDTH).repeat(indent_level);
let mut text = String::with_capacity(1 + indent.len());
text.push('\n');
text.push_str(&indent);
(range.head, range.head, Some(text.into()))
});
- transaction.apply(&mut view.state);
+ cx.view.doc.apply(&transaction);
}
// TODO: handle indent-aware delete
- pub fn delete_char_backward(view: &mut View, count: usize) {
- let text = &view.state.doc.slice(..);
- let transaction = Transaction::change_by_selection(&view.state, |range| {
+ pub fn delete_char_backward(cx: &mut Context) {
+ let text = &cx.view.doc.text().slice(..);
+ let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
(
- graphemes::nth_prev_grapheme_boundary(text, range.head, count),
+ graphemes::nth_prev_grapheme_boundary(text, range.head, cx.count),
range.head,
None,
)
});
- transaction.apply(&mut view.state);
+ cx.view.doc.apply(&transaction);
}
- pub fn delete_char_forward(view: &mut View, count: usize) {
- let text = &view.state.doc.slice(..);
- let transaction = Transaction::change_by_selection(&view.state, |range| {
+ pub fn delete_char_forward(cx: &mut Context) {
+ let text = &cx.view.doc.text().slice(..);
+ let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
(
range.head,
- graphemes::nth_next_grapheme_boundary(text, range.head, count),
+ graphemes::nth_next_grapheme_boundary(text, range.head, cx.count),
None,
)
});
- transaction.apply(&mut view.state);
+ cx.view.doc.apply(&transaction);
}
}
@@ -487,24 +517,32 @@ pub fn insert_char_prompt(prompt: &mut Prompt, c: char) {
// Undo / Redo
-pub fn undo(view: &mut View, _count: usize) {
- view.history.undo(&mut view.state);
+pub fn undo(cx: &mut Context) {
+ if let Some(revert) = cx.view.doc.history.undo() {
+ cx.view.doc.version += 1;
+ cx.view.doc.apply(&revert);
+ }
// TODO: each command could simply return a Option<transaction>, then the higher level handles storing it?
}
-pub fn redo(view: &mut View, _count: usize) {
- view.history.redo(&mut view.state);
+pub fn redo(cx: &mut Context) {
+ if let Some(transaction) = cx.view.doc.history.redo() {
+ cx.view.doc.version += 1;
+ cx.view.doc.apply(&transaction);
+ }
}
// Yank / Paste
-pub fn yank(view: &mut View, _count: usize) {
+pub fn yank(cx: &mut Context) {
// TODO: should selections be made end inclusive?
- let values = view
+ let values = cx
+ .view
+ .doc
.state
.selection()
- .fragments(&view.state.doc().slice(..))
+ .fragments(&cx.view.doc.text().slice(..))
.map(|cow| cow.into_owned())
.collect();
@@ -513,7 +551,7 @@ pub fn yank(view: &mut View, _count: usize) {
register::set(reg, values);
}
-pub fn paste(view: &mut View, _count: usize) {
+pub fn paste(cx: &mut Context) {
// TODO: allow specifying reg
let reg = '"';
if let Some(values) = register::get(reg) {
@@ -545,19 +583,19 @@ pub fn paste(view: &mut View, _count: usize) {
let transaction = if linewise {
// paste on the next line
// TODO: can simply take a range + modifier and compute the right pos without ifs
- let text = view.state.doc();
- Transaction::change_by_selection(&view.state, |range| {
+ let text = cx.view.doc.text();
+ Transaction::change_by_selection(&cx.view.doc.state, |range| {
let line_end = text.line_to_char(text.char_to_line(range.head) + 1);
(line_end, line_end, Some(values.next().unwrap()))
})
} else {
- Transaction::change_by_selection(&view.state, |range| {
+ Transaction::change_by_selection(&cx.view.doc.state, |range| {
(range.head + 1, range.head + 1, Some(values.next().unwrap()))
})
};
- transaction.apply(&mut view.state);
- append_changes_to_history(view);
+ cx.view.doc.apply(&transaction);
+ append_changes_to_history(cx);
}
}
@@ -565,9 +603,9 @@ fn get_lines(view: &View) -> Vec<usize> {
let mut lines = Vec::new();
// Get all line numbers
- for range in view.state.selection.ranges() {
- let start = view.state.doc.char_to_line(range.from());
- let end = view.state.doc.char_to_line(range.to());
+ for range in view.doc.selection().ranges() {
+ let start = view.doc.text().char_to_line(range.from());
+ let end = view.doc.text().char_to_line(range.to());
for line in start..=end {
lines.push(line)
@@ -578,29 +616,29 @@ fn get_lines(view: &View) -> Vec<usize> {
lines
}
-pub fn indent(view: &mut View, _count: usize) {
- let lines = get_lines(view);
+pub fn indent(cx: &mut Context) {
+ let lines = get_lines(cx.view);
// Indent by one level
let indent = Tendril::from(" ".repeat(TAB_WIDTH));
let transaction = Transaction::change(
- &view.state,
+ &cx.view.doc.state,
lines.into_iter().map(|line| {
- let pos = view.state.doc.line_to_char(line);
+ let pos = cx.view.doc.text().line_to_char(line);
(pos, pos, Some(indent.clone()))
}),
);
- transaction.apply(&mut view.state);
- append_changes_to_history(view);
+ cx.view.doc.apply(&transaction);
+ append_changes_to_history(cx);
}
-pub fn unindent(view: &mut View, _count: usize) {
- let lines = get_lines(view);
+pub fn unindent(cx: &mut Context) {
+ let lines = get_lines(cx.view);
let mut changes = Vec::with_capacity(lines.len());
for line_idx in lines {
- let line = view.state.doc.line(line_idx);
+ let line = cx.view.doc.text().line(line_idx);
let mut width = 0;
for ch in line.chars() {
@@ -616,18 +654,27 @@ pub fn unindent(view: &mut View, _count: usize) {
}
if width > 0 {
- let start = view.state.doc.line_to_char(line_idx);
+ let start = cx.view.doc.text().line_to_char(line_idx);
changes.push((start, start + width, None))
}
}
- let transaction = Transaction::change(&view.state, changes.into_iter());
+ let transaction = Transaction::change(&cx.view.doc.state, changes.into_iter());
- transaction.apply(&mut view.state);
- append_changes_to_history(view);
+ cx.view.doc.apply(&transaction);
+ append_changes_to_history(cx);
}
-pub fn indent_selection(_view: &mut View, _count: usize) {
+pub fn indent_selection(_cx: &mut Context) {
// loop over each line and recompute proper indentation
unimplemented!()
}
+
+//
+
+pub fn save(cx: &mut Context) {
+ // Spawns an async task to actually do the saving. This way we prevent blocking.
+
+ // TODO: handle save errors somehow?
+ cx.executor.spawn(cx.view.doc.save()).detach();
+}
diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs
new file mode 100644
index 00000000..7c4596ad
--- /dev/null
+++ b/helix-view/src/document.rs
@@ -0,0 +1,209 @@
+use anyhow::Error;
+use std::future::Future;
+use std::path::PathBuf;
+
+use helix_core::{
+ syntax::LOADER, ChangeSet, Diagnostic, History, Position, Range, Rope, RopeSlice, Selection,
+ State, Syntax, Transaction,
+};
+
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
+pub enum Mode {
+ Normal,
+ Insert,
+ Goto,
+}
+
+pub struct Document {
+ pub state: State, // rope + selection
+ /// File path on disk.
+ pub path: Option<PathBuf>,
+
+ /// Current editing mode.
+ pub mode: Mode,
+ pub restore_cursor: bool,
+
+ /// Tree-sitter AST tree
+ pub syntax: Option<Syntax>,
+ /// Corresponding language scope name. Usually `source.<lang>`.
+ pub language: Option<String>,
+
+ /// Pending changes since last history commit.
+ pub changes: ChangeSet,
+ pub old_state: State,
+ pub history: History,
+ pub version: i32, // should be usize?
+
+ pub diagnostics: Vec<Diagnostic>,
+}
+
+/// Like std::mem::replace() except it allows the replacement value to be mapped from the
+/// original value.
+fn take_with<T, F>(mut_ref: &mut T, closure: F)
+where
+ F: FnOnce(T) -> T,
+{
+ use std::{panic, ptr};
+
+ unsafe {
+ let old_t = ptr::read(mut_ref);
+ let new_t = panic::catch_unwind(panic::AssertUnwindSafe(|| closure(old_t)))
+ .unwrap_or_else(|_| ::std::process::abort());
+ ptr::write(mut_ref, new_t);
+ }
+}
+
+use url::Url;
+
+impl Document {
+ fn new(state: State) -> Self {
+ let changes = ChangeSet::new(&state.doc);
+ let old_state = state.clone();
+
+ Self {
+ path: None,
+ state,
+ mode: Mode::Normal,
+ restore_cursor: false,
+ syntax: None,
+ language: None,
+ changes,
+ old_state,
+ diagnostics: Vec::new(),
+ version: 0,
+ history: History::default(),
+ }
+ }
+
+ // TODO: passing scopes here is awkward
+ // TODO: async fn?
+ pub fn load(path: PathBuf, scopes: &[String]) -> Result<Self, Error> {
+ use std::{env, fs::File, io::BufReader};
+ let _current_dir = env::current_dir()?;
+
+ let doc = Rope::from_reader(BufReader::new(File::open(path.clone())?))?;
+
+ // TODO: create if not found
+
+ let mut doc = Self::new(State::new(doc));
+
+ if let Some(language_config) = LOADER.language_config_for_file_name(path.as_path()) {
+ let highlight_config = language_config.highlight_config(scopes).unwrap().unwrap();
+ // TODO: config.configure(scopes) is now delayed, is that ok?
+
+ let syntax = Syntax::new(&doc.state.doc, highlight_config.clone());
+
+ doc.syntax = Some(syntax);
+ // TODO: maybe just keep an Arc<> pointer to the language_config?
+ doc.language = Some(language_config.scope().to_string());
+
+ // TODO: this ties lsp support to tree-sitter enabled languages for now. Language
+ // config should use Option<HighlightConfig> to let us have non-tree-sitter configs.
+
+ // TODO: circular dep: view <-> lsp
+ // helix_lsp::REGISTRY;
+ // view should probably depend on lsp
+ };
+
+ // canonicalize path to absolute value
+ doc.path = Some(std::fs::canonicalize(path)?);
+
+ Ok(doc)
+ }
+
+ // TODO: do we need some way of ensuring two save operations on the same doc can't run at once?
+ // or is that handled by the OS/async layer
+ pub fn save(&self) -> impl Future<Output = Result<(), anyhow::Error>> {
+ // we clone and move text + path into the future so that we asynchronously save the current
+ // state without blocking any further edits.
+
+ let text = self.text().clone();
+ let path = self.path.clone().expect("Can't save with no path set!"); // TODO: handle no path
+
+ // TODO: mark changes up to now as saved
+ // TODO: mark dirty false
+
+ async move {
+ use smol::{fs::File, prelude::*};
+ let mut file = File::create(path).await?;
+
+ // write all the rope chunks to file
+ for chunk in text.chunks() {
+ file.write_all(chunk.as_bytes()).await?;
+ }
+ // TODO: flush?
+
+ Ok(())
+ } // and_then(// lsp.send_text_saved_notification())
+ }
+
+ pub fn set_language(&mut self, scope: &str, scopes: &[String]) {
+ if let Some(language_config) = LOADER.language_config_for_scope(scope) {
+ let highlight_config = language_config.highlight_config(scopes).unwrap().unwrap();
+ // TODO: config.configure(scopes) is now delayed, is that ok?
+
+ let syntax = Syntax::new(&self.state.doc, highlight_config.clone());
+
+ self.syntax = Some(syntax);
+ };
+ }
+
+ pub fn set_selection(&mut self, selection: Selection) {
+ // TODO: use a transaction?
+ self.state.selection = selection;
+ }
+
+ pub fn apply(&mut self, transaction: &Transaction) -> bool {
+ let old_doc = self.text().clone();
+
+ let success = transaction.apply(&mut self.state);
+
+ if !transaction.changes().is_empty() {
+ // Compose this transaction with the previous one
+ take_with(&mut self.changes, |changes| {
+ changes.compose(transaction.changes().clone()).unwrap()
+ });
+
+ // TODO: when composing, replace transaction.selection too
+
+ // update tree-sitter syntax tree
+ if let Some(syntax) = &mut self.syntax {
+ // TODO: no unwrap
+ syntax
+ .update(&old_doc, &self.state.doc, transaction.changes())
+ .unwrap();
+ }
+
+ // TODO: map state.diagnostics over changes::map_pos too
+ }
+ success
+ }
+
+ #[inline]
+ pub fn mode(&self) -> Mode {
+ self.mode
+ }
+
+ #[inline]
+ pub fn path(&self) -> Option<&PathBuf> {
+ self.path.as_ref()
+ }
+
+ pub fn url(&self) -> Option<Url> {
+ self.path().map(|path| Url::from_file_path(path).unwrap())
+ }
+
+ pub fn text(&self) -> &Rope {
+ &self.state.doc
+ }
+
+ pub fn selection(&self) -> &Selection {
+ &self.state.selection
+ }
+
+ // pub fn slice<R>(&self, range: R) -> RopeSlice where R: RangeBounds {
+ // self.state.doc.slice
+ // }
+
+ // TODO: transact(Fn) ?
+}
diff --git a/helix-view/src/editor.rs b/helix-view/src/editor.rs
index c292caed..9fb2ae36 100644
--- a/helix-view/src/editor.rs
+++ b/helix-view/src/editor.rs
@@ -1,24 +1,48 @@
-use crate::View;
+use crate::theme::Theme;
+use crate::{Document, View};
use std::path::PathBuf;
use anyhow::Error;
pub struct Editor {
- pub view: Option<View>,
+ pub views: Vec<View>,
+ pub focus: usize,
pub should_close: bool,
+ pub theme: Theme, // TODO: share one instance
+}
+
+impl Default for Editor {
+ fn default() -> Self {
+ Self::new()
+ }
}
impl Editor {
pub fn new() -> Self {
+ let theme = Theme::default();
+
Self {
- view: None,
+ views: Vec::new(),
+ focus: 0,
should_close: false,
+ theme,
}
}
pub fn open(&mut self, path: PathBuf, size: (u16, u16)) -> Result<(), Error> {
- self.view = Some(View::open(path, size)?);
+ let pos = self.views.len();
+ let doc = Document::load(path, self.theme.scopes())?;
+ self.views.push(View::new(doc, size)?);
+ self.focus = pos;
Ok(())
}
+
+ pub fn view(&self) -> Option<&View> {
+ self.views.get(self.focus)
+ }
+
+ pub fn view_mut(&mut self) -> Option<&mut View> {
+ self.views.get_mut(self.focus)
+ }
}
diff --git a/helix-view/src/keymap.rs b/helix-view/src/keymap.rs
index 69e6cabb..c815911e 100644
--- a/helix-view/src/keymap.rs
+++ b/helix-view/src/keymap.rs
@@ -1,5 +1,6 @@
use crate::commands::{self, Command};
-use helix_core::{hashmap, state};
+use crate::document::Mode;
+use helix_core::hashmap;
use std::collections::HashMap;
// Kakoune-inspired:
@@ -81,14 +82,17 @@ use std::collections::HashMap;
// = = align?
// + =
// }
+//
+// gd = goto definition
+// gr = goto reference
// }
#[cfg(feature = "term")]
pub use crossterm::event::{KeyCode, KeyEvent as Key, KeyModifiers as Modifiers};
// TODO: could be trie based
-type Keymap = HashMap<Vec<Key>, Command>;
-type Keymaps = HashMap<state::Mode, Keymap>;
+pub type Keymap = HashMap<Vec<Key>, Command>;
+pub type Keymaps = HashMap<Mode, Keymap>;
macro_rules! key {
($ch:expr) => {
@@ -128,7 +132,7 @@ macro_rules! ctrl {
pub fn default() -> Keymaps {
hashmap!(
- state::Mode::Normal =>
+ Mode::Normal =>
// as long as you cast the first item, rust is able to infer the other cases
hashmap!(
vec![key!('h')] => commands::move_char_left as Command,
@@ -179,7 +183,7 @@ pub fn default() -> Keymaps {
vec![ctrl!('u')] => commands::half_page_up,
vec![ctrl!('d')] => commands::half_page_down,
),
- state::Mode::Insert => hashmap!(
+ Mode::Insert => hashmap!(
vec![Key {
code: KeyCode::Esc,
modifiers: Modifiers::NONE
@@ -201,7 +205,7 @@ pub fn default() -> Keymaps {
modifiers: Modifiers::NONE
}] => commands::insert::insert_tab,
),
- state::Mode::Goto => hashmap!(
+ Mode::Goto => hashmap!(
vec![Key {
code: KeyCode::Esc,
modifiers: Modifiers::NONE
diff --git a/helix-view/src/lib.rs b/helix-view/src/lib.rs
index 8ea634af..3b923744 100644
--- a/helix-view/src/lib.rs
+++ b/helix-view/src/lib.rs
@@ -1,9 +1,12 @@
pub mod commands;
+pub mod document;
pub mod editor;
pub mod keymap;
pub mod prompt;
pub mod theme;
pub mod view;
+pub use document::Document;
pub use editor::Editor;
+pub use theme::Theme;
pub use view::View;
diff --git a/helix-view/src/theme.rs b/helix-view/src/theme.rs
index 4cc399ed..809ec05d 100644
--- a/helix-view/src/theme.rs
+++ b/helix-view/src/theme.rs
@@ -157,6 +157,8 @@ impl Default for Theme {
"ui.background" => Style::default().bg(Color::Rgb(59, 34, 76)), // midnight
"ui.linenr" => Style::default().fg(Color::Rgb(90, 89, 119)), // comet
"ui.statusline" => Style::default().bg(Color::Rgb(40, 23, 51)), // revolver
+
+ "warning" => Style::default().fg(Color::Rgb(255, 205, 28)),
};
let scopes = mapping.keys().map(ToString::to_string).collect();
diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs
index 2b68dbc3..df41e3ae 100644
--- a/helix-view/src/view.rs
+++ b/helix-view/src/view.rs
@@ -1,44 +1,39 @@
use anyhow::Error;
-use std::{borrow::Cow, path::PathBuf};
+use std::borrow::Cow;
-use crate::theme::Theme;
+use crate::Document;
use helix_core::{
graphemes::{grapheme_width, RopeGraphemes},
indent::TAB_WIDTH,
- History, Position, RopeSlice, State,
+ Position, RopeSlice,
};
use tui::layout::Rect;
pub const PADDING: usize = 5;
+// TODO: view should be View { doc: Document(state, history,..) }
+// since we can have multiple views into the same file
pub struct View {
- pub state: State,
- pub history: History,
+ pub doc: Document,
pub first_line: usize,
pub size: (u16, u16),
- pub theme: Theme, // TODO: share one instance
}
impl View {
- pub fn open(path: PathBuf, size: (u16, u16)) -> Result<Self, Error> {
- let theme = Theme::default();
- let state = State::load(path, theme.scopes())?;
-
+ pub fn new(doc: Document, size: (u16, u16)) -> Result<Self, Error> {
let view = Self {
- state,
+ doc,
first_line: 0,
size,
- theme,
- history: History::default(),
};
Ok(view)
}
pub fn ensure_cursor_in_view(&mut self) {
- let cursor = self.state.selection().cursor();
- let line = self.state.doc().char_to_line(cursor);
+ let cursor = self.doc.state.selection().cursor();
+ let line = self.doc.text().char_to_line(cursor);
let document_end = self.first_line + (self.size.1 as usize).saturating_sub(2);
// TODO: side scroll
@@ -58,7 +53,7 @@ impl View {
let viewport = Rect::new(6, 0, self.size.0, self.size.1 - 2); // - 2 for statusline and prompt
std::cmp::min(
self.first_line + (viewport.height as usize),
- self.state.doc().len_lines() - 1,
+ self.doc.text().len_lines() - 1,
)
}
@@ -90,4 +85,25 @@ impl View {
Some(Position::new(row, col))
}
+
+ // pub fn traverse<F>(&self, text: &RopeSlice, start: usize, end: usize, fun: F)
+ // where
+ // F: Fn(usize, usize),
+ // {
+ // let start = self.screen_coords_at_pos(text, start);
+ // let end = self.screen_coords_at_pos(text, end);
+
+ // match (start, end) {
+ // // fully on screen
+ // (Some(start), Some(end)) => {
+ // // we want to calculate ends of lines for each char..
+ // }
+ // // from start to end of screen
+ // (Some(start), None) => {}
+ // // from start of screen to end
+ // (None, Some(end)) => {}
+ // // not on screen
+ // (None, None) => return,
+ // }
+ // }
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-24 05:21:07 +0000