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-rw-r--r--third_party/rust/libc/ci/style.rs204
1 files changed, 0 insertions, 204 deletions
diff --git a/third_party/rust/libc/ci/style.rs b/third_party/rust/libc/ci/style.rs
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index 32e4ba772..000000000
--- a/third_party/rust/libc/ci/style.rs
+++ /dev/null
@@ -1,204 +0,0 @@
-//! Simple script to verify the coding style of this library
-//!
-//! ## How to run
-//!
-//! The first argument to this script is the directory to run on, so running
-//! this script should be as simple as:
-//!
-//! ```notrust
-//! rustc ci/style.rs
-//! ./style src
-//! ```
-//!
-//! ## Guidelines
-//!
-//! The current style is:
-//!
-//! * No trailing whitespace
-//! * No tabs
-//! * 80-character lines
-//! * `extern` instead of `extern "C"`
-//! * Specific module layout:
-//! 1. use directives
-//! 2. typedefs
-//! 3. structs
-//! 4. constants
-//! 5. f! { ... } functions
-//! 6. extern functions
-//! 7. modules + pub use
-//!
-//! Things not verified:
-//!
-//! * alignment
-//! * 4-space tabs
-//! * leading colons on paths
-
-use std::env;
-use std::fs;
-use std::io::prelude::*;
-use std::path::Path;
-
-macro_rules! t {
- ($e:expr) => (match $e {
- Ok(e) => e,
- Err(e) => panic!("{} failed with {}", stringify!($e), e),
- })
-}
-
-fn main() {
- let arg = env::args().skip(1).next().unwrap_or(".".to_string());
-
- let mut errors = Errors { errs: false };
- walk(Path::new(&arg), &mut errors);
-
- if errors.errs {
- panic!("found some lint errors");
- } else {
- println!("good style!");
- }
-}
-
-fn walk(path: &Path, err: &mut Errors) {
- for entry in t!(path.read_dir()).map(|e| t!(e)) {
- let path = entry.path();
- if t!(entry.file_type()).is_dir() {
- walk(&path, err);
- continue
- }
-
- let name = entry.file_name().into_string().unwrap();
- match &name[..] {
- n if !n.ends_with(".rs") => continue,
-
- "dox.rs" |
- "lib.rs" |
- "macros.rs" => continue,
-
- _ => {}
- }
-
- let mut contents = String::new();
- t!(t!(fs::File::open(&path)).read_to_string(&mut contents));
-
- check_style(&contents, &path, err);
- }
-}
-
-struct Errors {
- errs: bool,
-}
-
-#[derive(Clone, Copy, PartialEq)]
-enum State {
- Start,
- Imports,
- Typedefs,
- Structs,
- Constants,
- FunctionDefinitions,
- Functions,
- Modules,
-}
-
-fn check_style(file: &str, path: &Path, err: &mut Errors) {
- let mut state = State::Start;
- let mut s_macros = 0;
- let mut f_macros = 0;
- let mut prev_blank = false;
-
- for (i, line) in file.lines().enumerate() {
- if line == "" {
- if prev_blank {
- err.error(path, i, "double blank line");
- }
- prev_blank = true;
- } else {
- prev_blank = false;
- }
- if line != line.trim_right() {
- err.error(path, i, "trailing whitespace");
- }
- if line.contains("\t") {
- err.error(path, i, "tab character");
- }
- if line.len() > 80 {
- err.error(path, i, "line longer than 80 chars");
- }
- if line.contains("extern \"C\"") {
- err.error(path, i, "use `extern` instead of `extern \"C\"");
- }
- if line.contains("#[cfg(") && !line.contains(" if ") {
- if state != State::Structs {
- err.error(path, i, "use cfg_if! and submodules \
- instead of #[cfg]");
- }
- }
-
- let line = line.trim_left();
- let is_pub = line.starts_with("pub ");
- let line = if is_pub {&line[4..]} else {line};
-
- let line_state = if line.starts_with("use ") {
- if is_pub {
- State::Modules
- } else {
- State::Imports
- }
- } else if line.starts_with("const ") {
- State::Constants
- } else if line.starts_with("type ") {
- State::Typedefs
- } else if line.starts_with("s! {") {
- s_macros += 1;
- State::Structs
- } else if line.starts_with("f! {") {
- f_macros += 1;
- State::FunctionDefinitions
- } else if line.starts_with("extern ") {
- State::Functions
- } else if line.starts_with("mod ") {
- State::Modules
- } else {
- continue
- };
-
- if state as usize > line_state as usize {
- err.error(path, i, &format!("{} found after {} when \
- it belongs before",
- line_state.desc(), state.desc()));
- }
-
- if f_macros == 2 {
- f_macros += 1;
- err.error(path, i, "multiple f! macros in one module");
- }
- if s_macros == 2 {
- s_macros += 1;
- err.error(path, i, "multiple s! macros in one module");
- }
-
- state = line_state;
- }
-}
-
-impl State {
- fn desc(&self) -> &str {
- match *self {
- State::Start => "start",
- State::Imports => "import",
- State::Typedefs => "typedef",
- State::Structs => "struct",
- State::Constants => "constant",
- State::FunctionDefinitions => "function definition",
- State::Functions => "extern function",
- State::Modules => "module",
- }
- }
-}
-
-impl Errors {
- fn error(&mut self, path: &Path, line: usize, msg: &str) {
- self.errs = true;
- println!("{}:{} - {}", path.display(), line + 1, msg);
- }
-}