523 lines
18 KiB
Rust
523 lines
18 KiB
Rust
#![doc(
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html_root_url = "https://doc.rust-lang.org/nightly/",
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html_playground_url = "https://play.rust-lang.org/"
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)]
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#![feature(rustc_private)]
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#![feature(box_patterns)]
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#![feature(box_syntax)]
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#![feature(in_band_lifetimes)]
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#![feature(nll)]
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#![feature(test)]
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#![feature(vec_remove_item)]
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#![feature(ptr_offset_from)]
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#![feature(crate_visibility_modifier)]
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#![feature(never_type)]
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#![recursion_limit = "256"]
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extern crate env_logger;
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extern crate getopts;
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extern crate rustc;
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extern crate rustc_ast;
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extern crate rustc_ast_pretty;
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extern crate rustc_attr;
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extern crate rustc_data_structures;
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extern crate rustc_driver;
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extern crate rustc_errors;
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extern crate rustc_expand;
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extern crate rustc_feature;
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extern crate rustc_hir;
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extern crate rustc_index;
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extern crate rustc_infer;
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extern crate rustc_interface;
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extern crate rustc_lexer;
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extern crate rustc_lint;
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extern crate rustc_metadata;
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extern crate rustc_mir;
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extern crate rustc_parse;
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extern crate rustc_resolve;
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extern crate rustc_session;
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extern crate rustc_span as rustc_span;
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extern crate rustc_target;
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extern crate rustc_typeck;
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extern crate test as testing;
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#[macro_use]
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extern crate log;
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use std::default::Default;
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use std::env;
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use std::panic;
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use std::process;
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use rustc::session::config::{make_crate_type_option, ErrorOutputType, RustcOptGroup};
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use rustc::session::{early_error, early_warn};
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#[macro_use]
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mod externalfiles;
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mod clean;
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mod config;
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mod core;
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mod docfs;
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mod doctree;
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mod fold;
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pub mod html {
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crate mod escape;
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crate mod format;
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crate mod highlight;
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crate mod item_type;
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crate mod layout;
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pub mod markdown;
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crate mod render;
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crate mod sources;
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crate mod static_files;
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crate mod toc;
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}
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mod markdown;
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mod passes;
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mod test;
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mod theme;
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mod visit_ast;
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mod visit_lib;
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struct Output {
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krate: clean::Crate,
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renderinfo: html::render::RenderInfo,
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renderopts: config::RenderOptions,
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}
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pub fn main() {
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let thread_stack_size: usize = if cfg!(target_os = "haiku") {
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16_000_000 // 16MB on Haiku
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} else {
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32_000_000 // 32MB on other platforms
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};
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rustc_driver::set_sigpipe_handler();
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env_logger::init_from_env("RUSTDOC_LOG");
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let res = std::thread::Builder::new()
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.stack_size(thread_stack_size)
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.spawn(move || get_args().map(|args| main_args(&args)).unwrap_or(1))
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.unwrap()
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.join()
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.unwrap_or(rustc_driver::EXIT_FAILURE);
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process::exit(res);
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}
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fn get_args() -> Option<Vec<String>> {
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env::args_os()
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.enumerate()
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.map(|(i, arg)| {
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arg.into_string()
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.map_err(|arg| {
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early_warn(
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ErrorOutputType::default(),
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&format!("Argument {} is not valid Unicode: {:?}", i, arg),
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);
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})
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.ok()
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})
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.collect()
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}
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fn stable<F>(name: &'static str, f: F) -> RustcOptGroup
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where
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F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
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{
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RustcOptGroup::stable(name, f)
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}
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fn unstable<F>(name: &'static str, f: F) -> RustcOptGroup
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where
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F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
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{
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RustcOptGroup::unstable(name, f)
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}
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fn opts() -> Vec<RustcOptGroup> {
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vec![
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stable("h", |o| o.optflag("h", "help", "show this help message")),
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stable("V", |o| o.optflag("V", "version", "print rustdoc's version")),
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stable("v", |o| o.optflag("v", "verbose", "use verbose output")),
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stable("r", |o| {
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o.optopt("r", "input-format", "the input type of the specified file", "[rust]")
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}),
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stable("w", |o| o.optopt("w", "output-format", "the output type to write", "[html]")),
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stable("o", |o| o.optopt("o", "output", "where to place the output", "PATH")),
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stable("crate-name", |o| {
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o.optopt("", "crate-name", "specify the name of this crate", "NAME")
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}),
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make_crate_type_option(),
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stable("L", |o| {
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o.optmulti("L", "library-path", "directory to add to crate search path", "DIR")
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}),
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stable("cfg", |o| o.optmulti("", "cfg", "pass a --cfg to rustc", "")),
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stable("extern", |o| o.optmulti("", "extern", "pass an --extern to rustc", "NAME[=PATH]")),
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unstable("extern-html-root-url", |o| {
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o.optmulti("", "extern-html-root-url", "base URL to use for dependencies", "NAME=URL")
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}),
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stable("plugin-path", |o| o.optmulti("", "plugin-path", "removed", "DIR")),
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stable("C", |o| {
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o.optmulti("C", "codegen", "pass a codegen option to rustc", "OPT[=VALUE]")
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}),
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stable("passes", |o| {
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o.optmulti(
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"",
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"passes",
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"list of passes to also run, you might want \
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to pass it multiple times; a value of `list` \
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will print available passes",
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"PASSES",
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)
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}),
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stable("plugins", |o| o.optmulti("", "plugins", "removed", "PLUGINS")),
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stable("no-default", |o| o.optflag("", "no-defaults", "don't run the default passes")),
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stable("document-private-items", |o| {
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o.optflag("", "document-private-items", "document private items")
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}),
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unstable("document-hidden-items", |o| {
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o.optflag("", "document-hidden-items", "document items that have doc(hidden)")
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}),
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stable("test", |o| o.optflag("", "test", "run code examples as tests")),
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stable("test-args", |o| {
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o.optmulti("", "test-args", "arguments to pass to the test runner", "ARGS")
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}),
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stable("target", |o| o.optopt("", "target", "target triple to document", "TRIPLE")),
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stable("markdown-css", |o| {
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o.optmulti(
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"",
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"markdown-css",
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"CSS files to include via <link> in a rendered Markdown file",
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"FILES",
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)
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}),
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stable("html-in-header", |o| {
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o.optmulti(
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"",
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"html-in-header",
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"files to include inline in the <head> section of a rendered Markdown file \
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or generated documentation",
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"FILES",
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)
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}),
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stable("html-before-content", |o| {
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o.optmulti(
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"",
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"html-before-content",
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"files to include inline between <body> and the content of a rendered \
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Markdown file or generated documentation",
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"FILES",
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)
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}),
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stable("html-after-content", |o| {
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o.optmulti(
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"",
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"html-after-content",
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"files to include inline between the content and </body> of a rendered \
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Markdown file or generated documentation",
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"FILES",
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)
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}),
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unstable("markdown-before-content", |o| {
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o.optmulti(
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"",
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"markdown-before-content",
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"files to include inline between <body> and the content of a rendered \
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Markdown file or generated documentation",
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"FILES",
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)
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}),
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unstable("markdown-after-content", |o| {
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o.optmulti(
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"",
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"markdown-after-content",
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"files to include inline between the content and </body> of a rendered \
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Markdown file or generated documentation",
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"FILES",
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)
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}),
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stable("markdown-playground-url", |o| {
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o.optopt("", "markdown-playground-url", "URL to send code snippets to", "URL")
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}),
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stable("markdown-no-toc", |o| {
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o.optflag("", "markdown-no-toc", "don't include table of contents")
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}),
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stable("e", |o| {
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o.optopt(
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"e",
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"extend-css",
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"To add some CSS rules with a given file to generate doc with your \
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own theme. However, your theme might break if the rustdoc's generated HTML \
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changes, so be careful!",
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"PATH",
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)
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}),
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unstable("Z", |o| {
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o.optmulti("Z", "", "internal and debugging options (only on nightly build)", "FLAG")
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}),
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stable("sysroot", |o| o.optopt("", "sysroot", "Override the system root", "PATH")),
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unstable("playground-url", |o| {
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o.optopt(
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"",
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"playground-url",
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"URL to send code snippets to, may be reset by --markdown-playground-url \
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or `#![doc(html_playground_url=...)]`",
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"URL",
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)
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}),
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unstable("display-warnings", |o| {
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o.optflag("", "display-warnings", "to print code warnings when testing doc")
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}),
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unstable("crate-version", |o| {
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o.optopt("", "crate-version", "crate version to print into documentation", "VERSION")
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}),
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unstable("sort-modules-by-appearance", |o| {
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o.optflag(
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"",
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"sort-modules-by-appearance",
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"sort modules by where they appear in the \
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program, rather than alphabetically",
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)
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}),
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stable("theme", |o| {
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o.optmulti(
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"",
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"theme",
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"additional themes which will be added to the generated docs",
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"FILES",
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)
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}),
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stable("check-theme", |o| {
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o.optmulti("", "check-theme", "check if given theme is valid", "FILES")
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}),
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unstable("resource-suffix", |o| {
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o.optopt(
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"",
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"resource-suffix",
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"suffix to add to CSS and JavaScript files, e.g., \"light.css\" will become \
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\"light-suffix.css\"",
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"PATH",
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)
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}),
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stable("edition", |o| {
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o.optopt(
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"",
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"edition",
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"edition to use when compiling rust code (default: 2015)",
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"EDITION",
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)
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}),
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stable("color", |o| {
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o.optopt(
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"",
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"color",
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"Configure coloring of output:
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auto = colorize, if output goes to a tty (default);
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always = always colorize output;
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never = never colorize output",
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"auto|always|never",
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)
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}),
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stable("error-format", |o| {
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o.optopt(
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"",
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"error-format",
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"How errors and other messages are produced",
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"human|json|short",
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)
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}),
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stable("json", |o| {
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o.optopt("", "json", "Configure the structure of JSON diagnostics", "CONFIG")
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}),
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unstable("disable-minification", |o| {
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o.optflag("", "disable-minification", "Disable minification applied on JS files")
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}),
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stable("warn", |o| o.optmulti("W", "warn", "Set lint warnings", "OPT")),
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stable("allow", |o| o.optmulti("A", "allow", "Set lint allowed", "OPT")),
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stable("deny", |o| o.optmulti("D", "deny", "Set lint denied", "OPT")),
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stable("forbid", |o| o.optmulti("F", "forbid", "Set lint forbidden", "OPT")),
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stable("cap-lints", |o| {
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o.optmulti(
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"",
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"cap-lints",
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"Set the most restrictive lint level. \
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More restrictive lints are capped at this \
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level. By default, it is at `forbid` level.",
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"LEVEL",
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)
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}),
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unstable("index-page", |o| {
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o.optopt("", "index-page", "Markdown file to be used as index page", "PATH")
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}),
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unstable("enable-index-page", |o| {
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o.optflag("", "enable-index-page", "To enable generation of the index page")
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}),
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unstable("static-root-path", |o| {
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o.optopt(
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"",
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"static-root-path",
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"Path string to force loading static files from in output pages. \
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If not set, uses combinations of '../' to reach the documentation root.",
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"PATH",
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)
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}),
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unstable("disable-per-crate-search", |o| {
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o.optflag(
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"",
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"disable-per-crate-search",
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"disables generating the crate selector on the search box",
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)
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}),
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unstable("persist-doctests", |o| {
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o.optopt(
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"",
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"persist-doctests",
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"Directory to persist doctest executables into",
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"PATH",
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)
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}),
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unstable("generate-redirect-pages", |o| {
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o.optflag(
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"",
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"generate-redirect-pages",
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"Generate extra pages to support legacy URLs and tool links",
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)
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}),
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unstable("show-coverage", |o| {
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o.optflag(
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"",
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"show-coverage",
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"calculate percentage of public items with documentation",
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)
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}),
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unstable("enable-per-target-ignores", |o| {
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o.optflag(
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"",
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"enable-per-target-ignores",
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"parse ignore-foo for ignoring doctests on a per-target basis",
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)
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}),
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unstable("runtool", |o| {
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o.optopt(
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"",
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"runtool",
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"",
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"The tool to run tests with when building for a different target than host",
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)
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}),
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unstable("runtool-arg", |o| {
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o.optmulti(
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"",
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"runtool-arg",
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"",
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"One (of possibly many) arguments to pass to the runtool",
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)
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}),
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unstable("test-builder", |o| {
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o.optflag(
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"",
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"test-builder",
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"specified the rustc-like binary to use as the test builder",
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)
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}),
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]
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}
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fn usage(argv0: &str) {
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let mut options = getopts::Options::new();
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for option in opts() {
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(option.apply)(&mut options);
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}
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println!("{}", options.usage(&format!("{} [options] <input>", argv0)));
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}
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fn main_args(args: &[String]) -> i32 {
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let mut options = getopts::Options::new();
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for option in opts() {
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(option.apply)(&mut options);
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}
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let matches = match options.parse(&args[1..]) {
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Ok(m) => m,
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Err(err) => {
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early_error(ErrorOutputType::default(), &err.to_string());
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}
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};
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let options = match config::Options::from_matches(&matches) {
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Ok(opts) => opts,
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Err(code) => return code,
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};
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rustc_interface::interface::default_thread_pool(options.edition, move || main_options(options))
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}
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fn main_options(options: config::Options) -> i32 {
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let diag = core::new_handler(options.error_format, None, &options.debugging_options);
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match (options.should_test, options.markdown_input()) {
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(true, true) => return markdown::test(options, &diag),
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(true, false) => return test::run(options),
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(false, true) => {
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return markdown::render(options.input, options.render_options, &diag, options.edition);
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}
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(false, false) => {}
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}
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// need to move these items separately because we lose them by the time the closure is called,
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// but we can't crates the Handler ahead of time because it's not Send
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let diag_opts = (options.error_format, options.edition, options.debugging_options.clone());
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let show_coverage = options.show_coverage;
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rust_input(options, move |out| {
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if show_coverage {
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// if we ran coverage, bail early, we don't need to also generate docs at this point
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// (also we didn't load in any of the useful passes)
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return rustc_driver::EXIT_SUCCESS;
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}
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let Output { krate, renderinfo, renderopts } = out;
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info!("going to format");
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let (error_format, edition, debugging_options) = diag_opts;
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let diag = core::new_handler(error_format, None, &debugging_options);
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match html::render::run(krate, renderopts, renderinfo, &diag, edition) {
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Ok(_) => rustc_driver::EXIT_SUCCESS,
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Err(e) => {
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diag.struct_err(&format!("couldn't generate documentation: {}", e.error))
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.note(&format!("failed to create or modify \"{}\"", e.file.display()))
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.emit();
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rustc_driver::EXIT_FAILURE
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}
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}
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})
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}
|
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|
|
/// Interprets the input file as a rust source file, passing it through the
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/// compiler all the way through the analysis passes. The rustdoc output is then
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/// generated from the cleaned AST of the crate.
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///
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|
/// This form of input will run all of the plug/cleaning passes
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fn rust_input<R, F>(options: config::Options, f: F) -> R
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where
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R: 'static + Send,
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F: 'static + Send + FnOnce(Output) -> R,
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{
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// First, parse the crate and extract all relevant information.
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info!("starting to run rustc");
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let result = rustc_driver::catch_fatal_errors(move || {
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let crate_name = options.crate_name.clone();
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let crate_version = options.crate_version.clone();
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let (mut krate, renderinfo, renderopts) = core::run_core(options);
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info!("finished with rustc");
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if let Some(name) = crate_name {
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krate.name = name
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}
|
|
|
|
krate.version = crate_version;
|
|
|
|
f(Output { krate, renderinfo, renderopts })
|
|
});
|
|
|
|
match result {
|
|
Ok(output) => output,
|
|
Err(_) => panic::resume_unwind(Box::new(rustc_errors::FatalErrorMarker)),
|
|
}
|
|
}
|