diff options
Diffstat (limited to 'helix-syntax')
| -rw-r--r-- | helix-syntax/Cargo.toml | 6 | ||||
| -rw-r--r-- | helix-syntax/build.rs | 199 | ||||
| -rw-r--r-- | helix-syntax/src/lib.rs | 115 |
3 files changed, 167 insertions, 153 deletions
diff --git a/helix-syntax/Cargo.toml b/helix-syntax/Cargo.toml index 140e3d24..7ad24488 100644 --- a/helix-syntax/Cargo.toml +++ b/helix-syntax/Cargo.toml @@ -12,8 +12,10 @@ include = ["src/**/*", "languages/**/*", "build.rs", "!**/docs/**/*", "!**/test/ [dependencies] tree-sitter = "0.19" -serde = { version = "1.0", features = ["derive"] } +libloading = "0.7" +anyhow = "1" [build-dependencies] -cc = { version = "1", features = ["parallel"] } +cc = { version = "1" } threadpool = { version = "1.0" } +anyhow = "1" diff --git a/helix-syntax/build.rs b/helix-syntax/build.rs index 847f8a67..02c4bc0a 100644 --- a/helix-syntax/build.rs +++ b/helix-syntax/build.rs @@ -1,79 +1,147 @@ +use anyhow::{anyhow, Context, Result}; use std::fs; -use std::path::PathBuf; +use std::time::SystemTime; +use std::{ + path::{Path, PathBuf}, + process::Command, +}; use std::sync::mpsc::channel; -fn collect_tree_sitter_dirs(ignore: &[String]) -> Vec<String> { +fn collect_tree_sitter_dirs(ignore: &[String]) -> Result<Vec<String>> { let mut dirs = Vec::new(); - for entry in fs::read_dir("languages").unwrap().flatten() { + let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("languages"); + + for entry in fs::read_dir(path)? { + let entry = entry?; let path = entry.path(); - let dir = path.file_name().unwrap().to_str().unwrap().to_string(); - if !ignore.contains(&dir) { - dirs.push(dir); + + if !entry.file_type()?.is_dir() { + continue; } - } - dirs -} -fn collect_src_files(dir: &str) -> (Vec<String>, Vec<String>) { - eprintln!("Collect files for {}", dir); + let dir = path.file_name().unwrap().to_str().unwrap().to_string(); - let mut c_files = Vec::new(); - let mut cpp_files = Vec::new(); - let path = PathBuf::from("languages").join(&dir).join("src"); - for entry in fs::read_dir(path).unwrap().flatten() { - let path = entry.path(); - if path - .file_stem() - .unwrap() - .to_str() - .unwrap() - .starts_with("binding") - { + // filter ignores + if ignore.contains(&dir) { continue; } - if let Some(ext) = path.extension() { - if ext == "c" { - c_files.push(path.to_str().unwrap().to_string()); - } else if ext == "cc" || ext == "cpp" || ext == "cxx" { - cpp_files.push(path.to_str().unwrap().to_string()); - } - } + dirs.push(dir) } - (c_files, cpp_files) -} -fn build_c(files: Vec<String>, language: &str) { - let mut build = cc::Build::new(); - for file in files { - build - .file(&file) - .include(PathBuf::from(file).parent().unwrap()) - .pic(true) - .warnings(false); - } - build.compile(&format!("tree-sitter-{}-c", language)); + Ok(dirs) } -fn build_cpp(files: Vec<String>, language: &str) { - let mut build = cc::Build::new(); +#[cfg(unix)] +const DYLIB_EXTENSION: &str = "so"; + +#[cfg(windows)] +const DYLIB_EXTENSION: &str = "dll"; - let flag = if build.get_compiler().is_like_msvc() { - "/std:c++17" +fn build_library(src_path: &Path, language: &str) -> Result<()> { + let header_path = src_path; + // let grammar_path = src_path.join("grammar.json"); + let parser_path = src_path.join("parser.c"); + let mut scanner_path = src_path.join("scanner.c"); + + let scanner_path = if scanner_path.exists() { + Some(scanner_path) } else { - "-std=c++14" + scanner_path.set_extension("cc"); + if scanner_path.exists() { + Some(scanner_path) + } else { + None + } }; + let parser_lib_path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../runtime/grammars"); + let mut library_path = parser_lib_path.join(language); + library_path.set_extension(DYLIB_EXTENSION); - for file in files { - build - .file(&file) - .include(PathBuf::from(file).parent().unwrap()) - .pic(true) - .warnings(false) - .cpp(true) - .flag_if_supported(flag); + let recompile = needs_recompile(&library_path, &parser_path, &scanner_path) + .with_context(|| "Failed to compare source and binary timestamps")?; + + if !recompile { + return Ok(()); + } + let mut config = cc::Build::new(); + config.cpp(true).opt_level(2).cargo_metadata(false); + let compiler = config.get_compiler(); + let mut command = Command::new(compiler.path()); + command.current_dir(src_path); + for (key, value) in compiler.env() { + command.env(key, value); } - build.compile(&format!("tree-sitter-{}-cpp", language)); + + if cfg!(windows) { + command + .args(&["/nologo", "/LD", "/I"]) + .arg(header_path) + .arg("/Od"); + if let Some(scanner_path) = scanner_path.as_ref() { + command.arg(scanner_path); + } + + command + .arg(parser_path) + .arg("/link") + .arg(format!("/out:{}", library_path.to_str().unwrap())); + } else { + command + .arg("-shared") + .arg("-fPIC") + .arg("-fno-exceptions") + .arg("-g") + .arg("-I") + .arg(header_path) + .arg("-o") + .arg(&library_path) + .arg("-O2"); + if let Some(scanner_path) = scanner_path.as_ref() { + if scanner_path.extension() == Some("c".as_ref()) { + command.arg("-xc").arg("-std=c99").arg(scanner_path); + } else { + command.arg(scanner_path); + } + } + command.arg("-xc").arg(parser_path); + } + + let output = command + .output() + .with_context(|| "Failed to execute C compiler")?; + if !output.status.success() { + return Err(anyhow!( + "Parser compilation failed.\nStdout: {}\nStderr: {}", + String::from_utf8_lossy(&output.stdout), + String::from_utf8_lossy(&output.stderr) + )); + } + + Ok(()) +} +fn needs_recompile( + lib_path: &Path, + parser_c_path: &Path, + scanner_path: &Option<PathBuf>, +) -> Result<bool> { + if !lib_path.exists() { + return Ok(true); + } + let lib_mtime = mtime(lib_path)?; + if mtime(parser_c_path)? > lib_mtime { + return Ok(true); + } + if let Some(scanner_path) = scanner_path { + if mtime(scanner_path)? > lib_mtime { + return Ok(true); + } + } + Ok(false) +} + +fn mtime(path: &Path) -> Result<SystemTime> { + Ok(fs::metadata(path)?.modified()?) } fn build_dir(dir: &str, language: &str) { @@ -92,22 +160,21 @@ fn build_dir(dir: &str, language: &str) { eprintln!("You can fix in using 'git submodule init && git submodule update --recursive'."); std::process::exit(1); } - let (c, cpp) = collect_src_files(dir); - if !c.is_empty() { - build_c(c, language); - } - if !cpp.is_empty() { - build_cpp(cpp, language); - } + + let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")) + .join("languages") + .join(dir) + .join("src"); + + build_library(&path, language).unwrap(); } fn main() { let ignore = vec![ "tree-sitter-typescript".to_string(), "tree-sitter-haskell".to_string(), // aarch64 failures: https://github.com/tree-sitter/tree-sitter-haskell/issues/34 - ".DS_Store".to_string(), ]; - let dirs = collect_tree_sitter_dirs(&ignore); + let dirs = collect_tree_sitter_dirs(&ignore).unwrap(); let mut n_jobs = 0; let pool = threadpool::Builder::new().build(); // by going through the builder, it'll use num_cpus @@ -118,7 +185,7 @@ fn main() { n_jobs += 1; pool.execute(move || { - let language = &dir[12..]; // skip tree-sitter- prefix + let language = &dir.strip_prefix("tree-sitter-").unwrap(); build_dir(&dir, language); // report progress diff --git a/helix-syntax/src/lib.rs b/helix-syntax/src/lib.rs index 5e3bb3ea..b6c0ecf3 100644 --- a/helix-syntax/src/lib.rs +++ b/helix-syntax/src/lib.rs @@ -1,94 +1,39 @@ -use serde::{Deserialize, Serialize}; +use anyhow::{Context, Result}; +use libloading::{Library, Symbol}; use tree_sitter::Language; -#[macro_export] -macro_rules! mk_extern { - ( $( $name:ident ),* ) => { - $( - extern "C" { pub fn $name() -> Language; } - )* - }; -} - -#[macro_export] -macro_rules! mk_enum { - ( $( $camel:ident ),* ) => { - #[derive(Clone, Copy, Debug, PartialEq, Serialize, Deserialize)] - #[serde(rename_all = "lowercase")] - pub enum Lang { - $( - $camel, - )* +fn replace_dashes_with_underscores(name: &str) -> String { + let mut result = String::with_capacity(name.len()); + for c in name.chars() { + if c == '-' { + result.push('_'); + } else { + result.push(c); } - }; + } + result } +#[cfg(unix)] +const DYLIB_EXTENSION: &str = "so"; -#[macro_export] -macro_rules! mk_get_language { - ( $( ($camel:ident, $name:ident) ),* ) => { - #[must_use] - pub fn get_language(lang: Lang) -> Language { - unsafe { - match lang { - $( - Lang::$camel => $name(), - )* - } - } - } - }; -} +#[cfg(windows)] +const DYLIB_EXTENSION: &str = "dll"; -#[macro_export] -macro_rules! mk_get_language_name { - ( $( $camel:ident ),* ) => { - #[must_use] - pub const fn get_language_name(lang: Lang) -> &'static str { - match lang { - $( - Lang::$camel => stringify!($camel), - )* - } - } - }; -} +pub fn get_language(runtime_path: &std::path::Path, name: &str) -> Result<Language> { + let name = name.to_ascii_lowercase(); + let mut library_path = runtime_path.join("grammars").join(&name); + // TODO: duplicated under build + library_path.set_extension(DYLIB_EXTENSION); -#[macro_export] -macro_rules! mk_langs { - ( $( ($camel:ident, $name:ident) ),* ) => { - mk_extern!($( $name ),*); - mk_enum!($( $camel ),*); - mk_get_language!($( ($camel, $name) ),*); - mk_get_language_name!($( $camel ),*); + let library = unsafe { Library::new(&library_path) } + .with_context(|| format!("Error opening dynamic library {:?}", &library_path))?; + let language_fn_name = format!("tree_sitter_{}", replace_dashes_with_underscores(&name)); + let language = unsafe { + let language_fn: Symbol<unsafe extern "C" fn() -> Language> = library + .get(language_fn_name.as_bytes()) + .with_context(|| format!("Failed to load symbol {}", language_fn_name))?; + language_fn() }; + std::mem::forget(library); + Ok(language) } - -mk_langs!( - // 1) Name for enum - // 2) tree-sitter function to call to get a Language - (Agda, tree_sitter_agda), - (Bash, tree_sitter_bash), - (Cpp, tree_sitter_cpp), - (CSharp, tree_sitter_c_sharp), - (Css, tree_sitter_css), - (C, tree_sitter_c), - (Elixir, tree_sitter_elixir), - (Go, tree_sitter_go), - // (Haskell, tree_sitter_haskell), - (Html, tree_sitter_html), - (Javascript, tree_sitter_javascript), - (Java, tree_sitter_java), - (Json, tree_sitter_json), - (Julia, tree_sitter_julia), - (Latex, tree_sitter_latex), - (Nix, tree_sitter_nix), - (Php, tree_sitter_php), - (Python, tree_sitter_python), - (Ruby, tree_sitter_ruby), - (Rust, tree_sitter_rust), - (Scala, tree_sitter_scala), - (Swift, tree_sitter_swift), - (Toml, tree_sitter_toml), - (Tsx, tree_sitter_tsx), - (Typescript, tree_sitter_typescript) -); |