655 lines
24 KiB
Rust
655 lines
24 KiB
Rust
// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
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html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
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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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#![deny(warnings)]
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#![feature(ascii_ctype)]
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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(fs_read_write)]
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#![feature(set_stdio)]
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#![feature(slice_patterns)]
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#![feature(test)]
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#![feature(unicode)]
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#![feature(vec_remove_item)]
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#![feature(entry_and_modify)]
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extern crate arena;
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extern crate getopts;
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extern crate env_logger;
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extern crate rustc;
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extern crate rustc_data_structures;
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extern crate rustc_const_math;
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extern crate rustc_trans_utils;
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extern crate rustc_driver;
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extern crate rustc_resolve;
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extern crate rustc_lint;
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extern crate rustc_back;
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extern crate rustc_metadata;
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extern crate rustc_typeck;
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extern crate serialize;
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#[macro_use] extern crate syntax;
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extern crate syntax_pos;
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extern crate test as testing;
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extern crate std_unicode;
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#[macro_use] extern crate log;
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extern crate rustc_errors as errors;
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extern crate pulldown_cmark;
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extern crate tempdir;
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extern crate serialize as rustc_serialize; // used by deriving
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use std::collections::{BTreeMap, BTreeSet};
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use std::default::Default;
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use std::env;
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use std::fmt::Display;
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use std::io;
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use std::io::Write;
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use std::path::{Path, PathBuf};
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use std::process;
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use std::sync::mpsc::channel;
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use externalfiles::ExternalHtml;
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use rustc::session::search_paths::SearchPaths;
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use rustc::session::config::{ErrorOutputType, RustcOptGroup, nightly_options, Externs};
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#[macro_use]
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pub mod externalfiles;
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pub mod clean;
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pub mod core;
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pub mod doctree;
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pub mod fold;
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pub mod html {
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pub mod highlight;
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pub mod escape;
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pub mod item_type;
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pub mod format;
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pub mod layout;
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pub mod markdown;
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pub mod render;
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pub mod toc;
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}
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pub mod markdown;
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pub mod passes;
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pub mod plugins;
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pub mod visit_ast;
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pub mod visit_lib;
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pub mod test;
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pub mod theme;
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use clean::AttributesExt;
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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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passes: Vec<String>,
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}
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pub fn main() {
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const STACK_SIZE: usize = 32_000_000; // 32MB
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env_logger::init();
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let res = std::thread::Builder::new().stack_size(STACK_SIZE).spawn(move || {
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syntax::with_globals(move || {
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get_args().map(|args| main_args(&args)).unwrap_or(1)
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})
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}).unwrap().join().unwrap_or(101);
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process::exit(res as i32);
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}
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fn get_args() -> Option<Vec<String>> {
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env::args_os().enumerate()
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.map(|(i, arg)| arg.into_string().map_err(|arg| {
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print_error(format!("Argument {} is not valid Unicode: {:?}", i, arg));
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}).ok())
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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 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 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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pub 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",
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"[rust]")
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}),
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stable("w", |o| {
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o.optopt("w", "output-format", "the output type to write", "[html]")
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}),
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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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stable("L", |o| {
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o.optmulti("L", "library-path", "directory to add to crate search path",
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"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| {
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o.optmulti("", "extern", "pass an --extern to rustc", "NAME=PATH")
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}),
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stable("plugin-path", |o| {
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o.optmulti("", "plugin-path", "directory to load plugins from", "DIR")
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}),
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stable("passes", |o| {
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o.optmulti("", "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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stable("plugins", |o| {
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o.optmulti("", "plugins", "space separated list of plugins to also load",
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"PLUGINS")
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}),
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stable("no-default", |o| {
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o.optflag("", "no-defaults", "don't run the default passes")
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}),
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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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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",
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"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("", "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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stable("html-in-header", |o| {
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o.optmulti("", "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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stable("html-before-content", |o| {
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o.optmulti("", "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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stable("html-after-content", |o| {
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o.optmulti("", "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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unstable("markdown-before-content", |o| {
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o.optmulti("", "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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unstable("markdown-after-content", |o| {
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o.optmulti("", "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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stable("markdown-playground-url", |o| {
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o.optopt("", "markdown-playground-url",
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"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("e", "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!", "PATH")
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}),
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unstable("Z", |o| {
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o.optmulti("Z", "",
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"internal and debugging options (only on nightly build)", "FLAG")
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}),
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stable("sysroot", |o| {
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o.optopt("", "sysroot", "Override the system root", "PATH")
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}),
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unstable("playground-url", |o| {
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o.optopt("", "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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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("linker", |o| {
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o.optopt("", "linker", "linker used for building executable test code", "PATH")
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}),
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unstable("sort-modules-by-appearance", |o| {
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o.optflag("", "sort-modules-by-appearance", "sort modules by where they appear in the \
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program, rather than alphabetically")
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}),
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unstable("themes", |o| {
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o.optmulti("", "themes",
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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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unstable("theme-checker", |o| {
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o.optmulti("", "theme-checker",
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"check if given theme is valid",
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"FILES")
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}),
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unstable("resource-suffix", |o| {
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o.optopt("",
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"resource-suffix",
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"suffix to add to CSS and JavaScript files, e.g. \"main.css\" will become \
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\"main-suffix.css\"",
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"PATH")
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}),
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]
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}
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pub 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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pub fn main_args(args: &[String]) -> isize {
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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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print_error(err);
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return 1;
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}
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};
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// Check for unstable options.
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nightly_options::check_nightly_options(&matches, &opts());
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// check for deprecated options
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check_deprecated_options(&matches);
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if matches.opt_present("h") || matches.opt_present("help") {
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usage("rustdoc");
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return 0;
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} else if matches.opt_present("version") {
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rustc_driver::version("rustdoc", &matches);
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return 0;
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}
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if matches.opt_strs("passes") == ["list"] {
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println!("Available passes for running rustdoc:");
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for &(name, _, description) in passes::PASSES {
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println!("{:>20} - {}", name, description);
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}
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println!("\nDefault passes for rustdoc:");
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for &name in passes::DEFAULT_PASSES {
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println!("{:>20}", name);
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}
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return 0;
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}
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let to_check = matches.opt_strs("theme-checker");
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if !to_check.is_empty() {
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let paths = theme::load_css_paths(include_bytes!("html/static/themes/main.css"));
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let mut errors = 0;
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println!("rustdoc: [theme-checker] Starting tests!");
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for theme_file in to_check.iter() {
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print!(" - Checking \"{}\"...", theme_file);
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let (success, differences) = theme::test_theme_against(theme_file, &paths);
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if !differences.is_empty() || !success {
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println!(" FAILED");
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errors += 1;
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if !differences.is_empty() {
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println!("{}", differences.join("\n"));
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}
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} else {
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println!(" OK");
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}
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}
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if errors != 0 {
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return 1;
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}
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return 0;
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}
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if matches.free.is_empty() {
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print_error("missing file operand");
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return 1;
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}
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if matches.free.len() > 1 {
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print_error("too many file operands");
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return 1;
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}
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let input = &matches.free[0];
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let mut libs = SearchPaths::new();
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for s in &matches.opt_strs("L") {
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libs.add_path(s, ErrorOutputType::default());
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}
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let externs = match parse_externs(&matches) {
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Ok(ex) => ex,
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Err(err) => {
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print_error(err);
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return 1;
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}
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};
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let test_args = matches.opt_strs("test-args");
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let test_args: Vec<String> = test_args.iter()
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.flat_map(|s| s.split_whitespace())
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.map(|s| s.to_string())
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.collect();
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let should_test = matches.opt_present("test");
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let markdown_input = Path::new(input).extension()
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.map_or(false, |e| e == "md" || e == "markdown");
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let output = matches.opt_str("o").map(|s| PathBuf::from(&s));
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let css_file_extension = matches.opt_str("e").map(|s| PathBuf::from(&s));
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let cfgs = matches.opt_strs("cfg");
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if let Some(ref p) = css_file_extension {
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if !p.is_file() {
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writeln!(
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&mut io::stderr(),
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"rustdoc: option --extend-css argument must be a file."
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).unwrap();
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return 1;
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}
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}
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let mut themes = Vec::new();
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if matches.opt_present("themes") {
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let paths = theme::load_css_paths(include_bytes!("html/static/themes/main.css"));
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for (theme_file, theme_s) in matches.opt_strs("themes")
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.iter()
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.map(|s| (PathBuf::from(&s), s.to_owned())) {
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if !theme_file.is_file() {
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println!("rustdoc: option --themes arguments must all be files");
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return 1;
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}
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let (success, ret) = theme::test_theme_against(&theme_file, &paths);
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if !success || !ret.is_empty() {
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println!("rustdoc: invalid theme: \"{}\"", theme_s);
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println!(" Check what's wrong with the \"theme-checker\" option");
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return 1;
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}
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themes.push(theme_file);
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}
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}
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let external_html = match ExternalHtml::load(
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&matches.opt_strs("html-in-header"),
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&matches.opt_strs("html-before-content"),
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&matches.opt_strs("html-after-content"),
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&matches.opt_strs("markdown-before-content"),
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&matches.opt_strs("markdown-after-content")) {
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Some(eh) => eh,
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None => return 3,
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};
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let crate_name = matches.opt_str("crate-name");
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let playground_url = matches.opt_str("playground-url");
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let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
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let display_warnings = matches.opt_present("display-warnings");
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let linker = matches.opt_str("linker").map(PathBuf::from);
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let sort_modules_alphabetically = !matches.opt_present("sort-modules-by-appearance");
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let resource_suffix = matches.opt_str("resource-suffix");
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match (should_test, markdown_input) {
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(true, true) => {
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return markdown::test(input, cfgs, libs, externs, test_args, maybe_sysroot,
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display_warnings, linker)
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}
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(true, false) => {
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return test::run(Path::new(input), cfgs, libs, externs, test_args, crate_name,
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maybe_sysroot, display_warnings, linker)
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}
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(false, true) => return markdown::render(Path::new(input),
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output.unwrap_or(PathBuf::from("doc")),
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&matches, &external_html,
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!matches.opt_present("markdown-no-toc")),
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(false, false) => {}
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}
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let output_format = matches.opt_str("w");
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let res = acquire_input(PathBuf::from(input), externs, &matches, move |out| {
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let Output { krate, passes, renderinfo } = out;
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info!("going to format");
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match output_format.as_ref().map(|s| &**s) {
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Some("html") | None => {
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html::render::run(krate, &external_html, playground_url,
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output.unwrap_or(PathBuf::from("doc")),
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resource_suffix.unwrap_or(String::new()),
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passes.into_iter().collect(),
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css_file_extension,
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renderinfo,
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sort_modules_alphabetically,
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themes)
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.expect("failed to generate documentation");
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0
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}
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Some(s) => {
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print_error(format!("unknown output format: {}", s));
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1
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}
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}
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});
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res.unwrap_or_else(|s| {
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print_error(format!("input error: {}", s));
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1
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})
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}
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/// Prints an uniformized error message on the standard error output
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fn print_error<T>(error_message: T) where T: Display {
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writeln!(
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&mut io::stderr(),
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"rustdoc: {}\nTry 'rustdoc --help' for more information.",
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error_message
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).unwrap();
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}
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/// Looks inside the command line arguments to extract the relevant input format
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/// and files and then generates the necessary rustdoc output for formatting.
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fn acquire_input<R, F>(input: PathBuf,
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externs: Externs,
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matches: &getopts::Matches,
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f: F)
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-> Result<R, String>
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|
where R: 'static + Send, F: 'static + Send + FnOnce(Output) -> R {
|
|
match matches.opt_str("r").as_ref().map(|s| &**s) {
|
|
Some("rust") => Ok(rust_input(input, externs, matches, f)),
|
|
Some(s) => Err(format!("unknown input format: {}", s)),
|
|
None => Ok(rust_input(input, externs, matches, f))
|
|
}
|
|
}
|
|
|
|
/// Extracts `--extern CRATE=PATH` arguments from `matches` and
|
|
/// returns a map mapping crate names to their paths or else an
|
|
/// error message.
|
|
fn parse_externs(matches: &getopts::Matches) -> Result<Externs, String> {
|
|
let mut externs = BTreeMap::new();
|
|
for arg in &matches.opt_strs("extern") {
|
|
let mut parts = arg.splitn(2, '=');
|
|
let name = parts.next().ok_or("--extern value must not be empty".to_string())?;
|
|
let location = parts.next()
|
|
.ok_or("--extern value must be of the format `foo=bar`"
|
|
.to_string())?;
|
|
let name = name.to_string();
|
|
externs.entry(name).or_insert_with(BTreeSet::new).insert(location.to_string());
|
|
}
|
|
Ok(Externs::new(externs))
|
|
}
|
|
|
|
/// Interprets the input file as a rust source file, passing it through the
|
|
/// compiler all the way through the analysis passes. The rustdoc output is then
|
|
/// generated from the cleaned AST of the crate.
|
|
///
|
|
/// This form of input will run all of the plug/cleaning passes
|
|
fn rust_input<R, F>(cratefile: PathBuf, externs: Externs, matches: &getopts::Matches, f: F) -> R
|
|
where R: 'static + Send, F: 'static + Send + FnOnce(Output) -> R {
|
|
let mut default_passes = !matches.opt_present("no-defaults");
|
|
let mut passes = matches.opt_strs("passes");
|
|
let mut plugins = matches.opt_strs("plugins");
|
|
|
|
// We hardcode in the passes here, as this is a new flag and we
|
|
// are generally deprecating passes.
|
|
if matches.opt_present("document-private-items") {
|
|
default_passes = false;
|
|
|
|
passes = vec![
|
|
String::from("collapse-docs"),
|
|
String::from("unindent-comments"),
|
|
];
|
|
}
|
|
|
|
// First, parse the crate and extract all relevant information.
|
|
let mut paths = SearchPaths::new();
|
|
for s in &matches.opt_strs("L") {
|
|
paths.add_path(s, ErrorOutputType::default());
|
|
}
|
|
let cfgs = matches.opt_strs("cfg");
|
|
let triple = matches.opt_str("target");
|
|
let maybe_sysroot = matches.opt_str("sysroot").map(PathBuf::from);
|
|
let crate_name = matches.opt_str("crate-name");
|
|
let crate_version = matches.opt_str("crate-version");
|
|
let plugin_path = matches.opt_str("plugin-path");
|
|
|
|
info!("starting to run rustc");
|
|
let display_warnings = matches.opt_present("display-warnings");
|
|
|
|
let force_unstable_if_unmarked = matches.opt_strs("Z").iter().any(|x| {
|
|
*x == "force-unstable-if-unmarked"
|
|
});
|
|
|
|
let (tx, rx) = channel();
|
|
|
|
rustc_driver::monitor(move || syntax::with_globals(move || {
|
|
use rustc::session::config::Input;
|
|
|
|
let (mut krate, renderinfo) =
|
|
core::run_core(paths, cfgs, externs, Input::File(cratefile), triple, maybe_sysroot,
|
|
display_warnings, crate_name.clone(),
|
|
force_unstable_if_unmarked);
|
|
|
|
info!("finished with rustc");
|
|
|
|
if let Some(name) = crate_name {
|
|
krate.name = name
|
|
}
|
|
|
|
krate.version = crate_version;
|
|
|
|
// Process all of the crate attributes, extracting plugin metadata along
|
|
// with the passes which we are supposed to run.
|
|
for attr in krate.module.as_ref().unwrap().attrs.lists("doc") {
|
|
let name = attr.name().map(|s| s.as_str());
|
|
let name = name.as_ref().map(|s| &s[..]);
|
|
if attr.is_word() {
|
|
if name == Some("no_default_passes") {
|
|
default_passes = false;
|
|
}
|
|
} else if let Some(value) = attr.value_str() {
|
|
let sink = match name {
|
|
Some("passes") => &mut passes,
|
|
Some("plugins") => &mut plugins,
|
|
_ => continue,
|
|
};
|
|
for p in value.as_str().split_whitespace() {
|
|
sink.push(p.to_string());
|
|
}
|
|
}
|
|
}
|
|
|
|
if default_passes {
|
|
for name in passes::DEFAULT_PASSES.iter().rev() {
|
|
passes.insert(0, name.to_string());
|
|
}
|
|
}
|
|
|
|
// Load all plugins/passes into a PluginManager
|
|
let path = plugin_path.unwrap_or("/tmp/rustdoc/plugins".to_string());
|
|
let mut pm = plugins::PluginManager::new(PathBuf::from(path));
|
|
for pass in &passes {
|
|
let plugin = match passes::PASSES.iter()
|
|
.position(|&(p, ..)| {
|
|
p == *pass
|
|
}) {
|
|
Some(i) => passes::PASSES[i].1,
|
|
None => {
|
|
error!("unknown pass {}, skipping", *pass);
|
|
continue
|
|
},
|
|
};
|
|
pm.add_plugin(plugin);
|
|
}
|
|
info!("loading plugins...");
|
|
for pname in plugins {
|
|
pm.load_plugin(pname);
|
|
}
|
|
|
|
// Run everything!
|
|
info!("Executing passes/plugins");
|
|
let krate = pm.run_plugins(krate);
|
|
|
|
tx.send(f(Output { krate: krate, renderinfo: renderinfo, passes: passes })).unwrap();
|
|
}));
|
|
rx.recv().unwrap()
|
|
}
|
|
|
|
/// Prints deprecation warnings for deprecated options
|
|
fn check_deprecated_options(matches: &getopts::Matches) {
|
|
let deprecated_flags = [
|
|
"input-format",
|
|
"output-format",
|
|
"plugin-path",
|
|
"plugins",
|
|
"no-defaults",
|
|
"passes",
|
|
];
|
|
|
|
for flag in deprecated_flags.into_iter() {
|
|
if matches.opt_present(flag) {
|
|
eprintln!("WARNING: the '{}' flag is considered deprecated", flag);
|
|
eprintln!("WARNING: please see https://github.com/rust-lang/rust/issues/44136");
|
|
}
|
|
}
|
|
|
|
if matches.opt_present("no-defaults") {
|
|
eprintln!("WARNING: (you may want to use --document-private-items)");
|
|
}
|
|
}
|