4686 lines
162 KiB
Rust
4686 lines
162 KiB
Rust
// ignore-tidy-filelength
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//! Rustdoc's HTML rendering module.
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//!
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//! This modules contains the bulk of the logic necessary for rendering a
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//! rustdoc `clean::Crate` instance to a set of static HTML pages. This
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//! rendering process is largely driven by the `format!` syntax extension to
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//! perform all I/O into files and streams.
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//!
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//! The rendering process is largely driven by the `Context` and `Cache`
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//! structures. The cache is pre-populated by crawling the crate in question,
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//! and then it is shared among the various rendering threads. The cache is meant
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//! to be a fairly large structure not implementing `Clone` (because it's shared
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//! among threads). The context, however, should be a lightweight structure. This
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//! is cloned per-thread and contains information about what is currently being
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//! rendered.
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//!
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//! In order to speed up rendering (mostly because of markdown rendering), the
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//! rendering process has been parallelized. This parallelization is only
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//! exposed through the `crate` method on the context, and then also from the
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//! fact that the shared cache is stored in TLS (and must be accessed as such).
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//!
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//! In addition to rendering the crate itself, this module is also responsible
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//! for creating the corresponding search index and source file renderings.
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//! These threads are not parallelized (they haven't been a bottleneck yet), and
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//! both occur before the crate is rendered.
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use std::borrow::Cow;
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use std::cell::{Cell, RefCell};
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use std::cmp::Ordering;
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use std::collections::{BTreeMap, VecDeque};
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use std::default::Default;
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use std::error;
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use std::ffi::OsStr;
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use std::fmt::{self, Formatter, Write};
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use std::fs::{self, File};
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use std::io::prelude::*;
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use std::io::{self, BufReader};
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use std::path::{Component, Path, PathBuf};
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use std::rc::Rc;
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use std::str;
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use std::sync::Arc;
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use rustc::middle::privacy::AccessLevels;
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use rustc::middle::stability;
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use rustc_ast_pretty::pprust;
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use rustc_data_structures::flock;
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use rustc_data_structures::fx::{FxHashMap, FxHashSet};
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use rustc_feature::UnstableFeatures;
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use rustc_hir as hir;
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use rustc_hir::def_id::DefId;
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use rustc_hir::Mutability;
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use rustc_span::edition::Edition;
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use rustc_span::hygiene::MacroKind;
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use rustc_span::source_map::FileName;
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use rustc_span::symbol::{sym, Symbol};
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use serde::ser::SerializeSeq;
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use serde::{Serialize, Serializer};
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use syntax::ast;
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use crate::clean::{self, AttributesExt, Deprecation, GetDefId, SelfTy};
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use crate::config::RenderOptions;
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use crate::docfs::{DocFS, ErrorStorage, PathError};
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use crate::doctree;
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use crate::html::escape::Escape;
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use crate::html::format::fmt_impl_for_trait_page;
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use crate::html::format::Function;
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use crate::html::format::{href, print_default_space, print_generic_bounds, WhereClause};
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use crate::html::format::{print_abi_with_space, Buffer, PrintWithSpace};
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use crate::html::item_type::ItemType;
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use crate::html::markdown::{self, ErrorCodes, IdMap, Markdown, MarkdownHtml, MarkdownSummaryLine};
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use crate::html::sources;
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use crate::html::{highlight, layout, static_files};
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use minifier;
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#[cfg(test)]
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mod tests;
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mod cache;
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use cache::Cache;
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crate use cache::ExternalLocation::{self, *};
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/// A pair of name and its optional document.
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pub type NameDoc = (String, Option<String>);
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crate fn ensure_trailing_slash(v: &str) -> impl fmt::Display + '_ {
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crate::html::format::display_fn(move |f| {
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if !v.ends_with("/") && !v.is_empty() { write!(f, "{}/", v) } else { write!(f, "{}", v) }
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})
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}
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#[derive(Debug)]
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pub struct Error {
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pub file: PathBuf,
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pub error: io::Error,
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}
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impl error::Error for Error {}
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impl std::fmt::Display for Error {
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fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
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let file = self.file.display().to_string();
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if file.is_empty() {
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write!(f, "{}", self.error)
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} else {
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write!(f, "\"{}\": {}", self.file.display(), self.error)
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}
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}
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}
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impl PathError for Error {
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fn new<P: AsRef<Path>>(e: io::Error, path: P) -> Error {
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Error { file: path.as_ref().to_path_buf(), error: e }
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}
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}
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macro_rules! try_none {
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($e:expr, $file:expr) => {{
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use std::io;
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match $e {
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Some(e) => e,
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None => {
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return Err(Error::new(io::Error::new(io::ErrorKind::Other, "not found"), $file));
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}
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}
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}};
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}
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macro_rules! try_err {
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($e:expr, $file:expr) => {{
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match $e {
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Ok(e) => e,
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Err(e) => return Err(Error::new(e, $file)),
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}
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}};
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}
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/// Major driving force in all rustdoc rendering. This contains information
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/// about where in the tree-like hierarchy rendering is occurring and controls
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/// how the current page is being rendered.
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///
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/// It is intended that this context is a lightweight object which can be fairly
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/// easily cloned because it is cloned per work-job (about once per item in the
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/// rustdoc tree).
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#[derive(Clone)]
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struct Context {
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/// Current hierarchy of components leading down to what's currently being
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/// rendered
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pub current: Vec<String>,
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/// The current destination folder of where HTML artifacts should be placed.
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/// This changes as the context descends into the module hierarchy.
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pub dst: PathBuf,
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/// A flag, which when `true`, will render pages which redirect to the
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/// real location of an item. This is used to allow external links to
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/// publicly reused items to redirect to the right location.
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pub render_redirect_pages: bool,
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/// The map used to ensure all generated 'id=' attributes are unique.
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id_map: Rc<RefCell<IdMap>>,
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pub shared: Arc<SharedContext>,
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pub cache: Arc<Cache>,
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}
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crate struct SharedContext {
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/// The path to the crate root source minus the file name.
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/// Used for simplifying paths to the highlighted source code files.
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pub src_root: PathBuf,
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/// This describes the layout of each page, and is not modified after
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/// creation of the context (contains info like the favicon and added html).
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pub layout: layout::Layout,
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/// This flag indicates whether `[src]` links should be generated or not. If
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/// the source files are present in the html rendering, then this will be
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/// `true`.
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pub include_sources: bool,
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/// The local file sources we've emitted and their respective url-paths.
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pub local_sources: FxHashMap<PathBuf, String>,
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/// Whether the collapsed pass ran
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pub collapsed: bool,
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/// The base-URL of the issue tracker for when an item has been tagged with
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/// an issue number.
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pub issue_tracker_base_url: Option<String>,
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/// The directories that have already been created in this doc run. Used to reduce the number
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/// of spurious `create_dir_all` calls.
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pub created_dirs: RefCell<FxHashSet<PathBuf>>,
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/// This flag indicates whether listings of modules (in the side bar and documentation itself)
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/// should be ordered alphabetically or in order of appearance (in the source code).
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pub sort_modules_alphabetically: bool,
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/// Additional themes to be added to the generated docs.
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pub themes: Vec<PathBuf>,
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/// Suffix to be added on resource files (if suffix is "-v2" then "light.css" becomes
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/// "light-v2.css").
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pub resource_suffix: String,
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/// Optional path string to be used to load static files on output pages. If not set, uses
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/// combinations of `../` to reach the documentation root.
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pub static_root_path: Option<String>,
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/// Option disabled by default to generate files used by RLS and some other tools.
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pub generate_redirect_pages: bool,
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/// The fs handle we are working with.
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pub fs: DocFS,
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/// The default edition used to parse doctests.
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pub edition: Edition,
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pub codes: ErrorCodes,
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playground: Option<markdown::Playground>,
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}
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impl Context {
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fn path(&self, filename: &str) -> PathBuf {
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// We use splitn vs Path::extension here because we might get a filename
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// like `style.min.css` and we want to process that into
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// `style-suffix.min.css`. Path::extension would just return `css`
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// which would result in `style.min-suffix.css` which isn't what we
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// want.
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let mut iter = filename.splitn(2, '.');
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let base = iter.next().unwrap();
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let ext = iter.next().unwrap();
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let filename = format!("{}{}.{}", base, self.shared.resource_suffix, ext,);
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self.dst.join(&filename)
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}
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}
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impl SharedContext {
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crate fn ensure_dir(&self, dst: &Path) -> Result<(), Error> {
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let mut dirs = self.created_dirs.borrow_mut();
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if !dirs.contains(dst) {
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try_err!(self.fs.create_dir_all(dst), dst);
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dirs.insert(dst.to_path_buf());
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}
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Ok(())
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}
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/// Based on whether the `collapse-docs` pass was run, return either the `doc_value` or the
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/// `collapsed_doc_value` of the given item.
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pub fn maybe_collapsed_doc_value<'a>(&self, item: &'a clean::Item) -> Option<Cow<'a, str>> {
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if self.collapsed {
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item.collapsed_doc_value().map(|s| s.into())
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} else {
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item.doc_value().map(|s| s.into())
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}
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}
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}
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/// Metadata about implementations for a type or trait.
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#[derive(Clone, Debug)]
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pub struct Impl {
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pub impl_item: clean::Item,
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}
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impl Impl {
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fn inner_impl(&self) -> &clean::Impl {
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match self.impl_item.inner {
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clean::ImplItem(ref impl_) => impl_,
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_ => panic!("non-impl item found in impl"),
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}
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}
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fn trait_did(&self) -> Option<DefId> {
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self.inner_impl().trait_.def_id()
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}
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}
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/// Temporary storage for data obtained during `RustdocVisitor::clean()`.
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/// Later on moved into `CACHE_KEY`.
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#[derive(Default)]
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pub struct RenderInfo {
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pub inlined: FxHashSet<DefId>,
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pub external_paths: crate::core::ExternalPaths,
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pub exact_paths: FxHashMap<DefId, Vec<String>>,
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pub access_levels: AccessLevels<DefId>,
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pub deref_trait_did: Option<DefId>,
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pub deref_mut_trait_did: Option<DefId>,
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pub owned_box_did: Option<DefId>,
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}
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// Helper structs for rendering items/sidebars and carrying along contextual
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// information
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/// Struct representing one entry in the JS search index. These are all emitted
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/// by hand to a large JS file at the end of cache-creation.
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#[derive(Debug)]
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struct IndexItem {
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ty: ItemType,
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name: String,
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path: String,
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desc: String,
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parent: Option<DefId>,
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parent_idx: Option<usize>,
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search_type: Option<IndexItemFunctionType>,
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}
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impl Serialize for IndexItem {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer,
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{
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assert_eq!(self.parent.is_some(), self.parent_idx.is_some());
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(self.ty, &self.name, &self.path, &self.desc, self.parent_idx, &self.search_type)
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.serialize(serializer)
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}
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}
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/// A type used for the search index.
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#[derive(Debug)]
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struct Type {
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name: Option<String>,
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generics: Option<Vec<String>>,
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}
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impl Serialize for Type {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer,
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{
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if let Some(name) = &self.name {
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let mut seq = serializer.serialize_seq(None)?;
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seq.serialize_element(&name)?;
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if let Some(generics) = &self.generics {
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seq.serialize_element(&generics)?;
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}
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seq.end()
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} else {
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serializer.serialize_none()
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}
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}
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}
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/// Full type of functions/methods in the search index.
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#[derive(Debug)]
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struct IndexItemFunctionType {
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inputs: Vec<Type>,
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output: Option<Vec<Type>>,
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}
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impl Serialize for IndexItemFunctionType {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer,
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{
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// If we couldn't figure out a type, just write `null`.
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let mut iter = self.inputs.iter();
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if match self.output {
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Some(ref output) => iter.chain(output.iter()).any(|ref i| i.name.is_none()),
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None => iter.any(|ref i| i.name.is_none()),
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} {
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serializer.serialize_none()
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} else {
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let mut seq = serializer.serialize_seq(None)?;
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seq.serialize_element(&self.inputs)?;
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if let Some(output) = &self.output {
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if output.len() > 1 {
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seq.serialize_element(&output)?;
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} else {
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seq.serialize_element(&output[0])?;
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}
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}
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seq.end()
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}
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}
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}
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thread_local!(static CACHE_KEY: RefCell<Arc<Cache>> = Default::default());
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thread_local!(pub static CURRENT_DEPTH: Cell<usize> = Cell::new(0));
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pub fn initial_ids() -> Vec<String> {
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[
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"main",
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"search",
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"help",
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"TOC",
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"render-detail",
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"associated-types",
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"associated-const",
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"required-methods",
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"provided-methods",
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"implementors",
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"synthetic-implementors",
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"implementors-list",
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"synthetic-implementors-list",
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"methods",
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"deref-methods",
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"implementations",
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]
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.iter()
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.map(|id| (String::from(*id)))
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.collect()
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}
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/// Generates the documentation for `crate` into the directory `dst`
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pub fn run(
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mut krate: clean::Crate,
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options: RenderOptions,
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renderinfo: RenderInfo,
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diag: &rustc_errors::Handler,
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edition: Edition,
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) -> Result<(), Error> {
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// need to save a copy of the options for rendering the index page
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let md_opts = options.clone();
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let RenderOptions {
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output,
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external_html,
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id_map,
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playground_url,
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sort_modules_alphabetically,
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themes,
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extension_css,
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extern_html_root_urls,
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resource_suffix,
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static_root_path,
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generate_search_filter,
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generate_redirect_pages,
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..
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} = options;
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let src_root = match krate.src {
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FileName::Real(ref p) => match p.parent() {
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Some(p) => p.to_path_buf(),
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None => PathBuf::new(),
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},
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_ => PathBuf::new(),
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};
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let mut errors = Arc::new(ErrorStorage::new());
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// If user passed in `--playground-url` arg, we fill in crate name here
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let mut playground = None;
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if let Some(url) = playground_url {
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playground = Some(markdown::Playground { crate_name: Some(krate.name.clone()), url });
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}
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let mut layout = layout::Layout {
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logo: String::new(),
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favicon: String::new(),
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external_html,
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krate: krate.name.clone(),
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css_file_extension: extension_css,
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generate_search_filter,
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};
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let mut issue_tracker_base_url = None;
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let mut include_sources = true;
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|
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// Crawl the crate attributes looking for attributes which control how we're
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// going to emit HTML
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if let Some(attrs) = krate.module.as_ref().map(|m| &m.attrs) {
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for attr in attrs.lists(sym::doc) {
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match (attr.name_or_empty(), attr.value_str()) {
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(sym::html_favicon_url, Some(s)) => {
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layout.favicon = s.to_string();
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}
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(sym::html_logo_url, Some(s)) => {
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layout.logo = s.to_string();
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}
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(sym::html_playground_url, Some(s)) => {
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playground = Some(markdown::Playground {
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crate_name: Some(krate.name.clone()),
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url: s.to_string(),
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});
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}
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(sym::issue_tracker_base_url, Some(s)) => {
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issue_tracker_base_url = Some(s.to_string());
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}
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(sym::html_no_source, None) if attr.is_word() => {
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include_sources = false;
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}
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_ => {}
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}
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}
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}
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let mut scx = SharedContext {
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collapsed: krate.collapsed,
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src_root,
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include_sources,
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local_sources: Default::default(),
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issue_tracker_base_url,
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layout,
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created_dirs: Default::default(),
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sort_modules_alphabetically,
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themes,
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resource_suffix,
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static_root_path,
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generate_redirect_pages,
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fs: DocFS::new(&errors),
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edition,
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codes: ErrorCodes::from(UnstableFeatures::from_environment().is_nightly_build()),
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playground,
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};
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let dst = output;
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scx.ensure_dir(&dst)?;
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krate = sources::render(&dst, &mut scx, krate)?;
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let (new_crate, index, cache) =
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Cache::from_krate(renderinfo, &extern_html_root_urls, &dst, krate);
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krate = new_crate;
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let cache = Arc::new(cache);
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let mut cx = Context {
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current: Vec::new(),
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dst,
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render_redirect_pages: false,
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id_map: Rc::new(RefCell::new(id_map)),
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shared: Arc::new(scx),
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cache: cache.clone(),
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};
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|
|
// Freeze the cache now that the index has been built. Put an Arc into TLS
|
|
// for future parallelization opportunities
|
|
CACHE_KEY.with(|v| *v.borrow_mut() = cache.clone());
|
|
CURRENT_DEPTH.with(|s| s.set(0));
|
|
|
|
// Write shared runs within a flock; disable thread dispatching of IO temporarily.
|
|
Arc::get_mut(&mut cx.shared).unwrap().fs.set_sync_only(true);
|
|
write_shared(&cx, &krate, index, &md_opts, diag)?;
|
|
Arc::get_mut(&mut cx.shared).unwrap().fs.set_sync_only(false);
|
|
|
|
// And finally render the whole crate's documentation
|
|
let ret = cx.krate(krate);
|
|
let nb_errors = Arc::get_mut(&mut errors).map_or_else(|| 0, |errors| errors.write_errors(diag));
|
|
if ret.is_err() {
|
|
ret
|
|
} else if nb_errors > 0 {
|
|
Err(Error::new(io::Error::new(io::ErrorKind::Other, "I/O error"), ""))
|
|
} else {
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
fn write_shared(
|
|
cx: &Context,
|
|
krate: &clean::Crate,
|
|
search_index: String,
|
|
options: &RenderOptions,
|
|
diag: &rustc_errors::Handler,
|
|
) -> Result<(), Error> {
|
|
// Write out the shared files. Note that these are shared among all rustdoc
|
|
// docs placed in the output directory, so this needs to be a synchronized
|
|
// operation with respect to all other rustdocs running around.
|
|
let lock_file = cx.dst.join(".lock");
|
|
let _lock = try_err!(flock::Lock::new(&lock_file, true, true, true), &lock_file);
|
|
|
|
// Add all the static files. These may already exist, but we just
|
|
// overwrite them anyway to make sure that they're fresh and up-to-date.
|
|
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("rustdoc.css"),
|
|
static_files::RUSTDOC_CSS,
|
|
options.enable_minification,
|
|
)?;
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("settings.css"),
|
|
static_files::SETTINGS_CSS,
|
|
options.enable_minification,
|
|
)?;
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("noscript.css"),
|
|
static_files::NOSCRIPT_CSS,
|
|
options.enable_minification,
|
|
)?;
|
|
|
|
// To avoid "light.css" to be overwritten, we'll first run over the received themes and only
|
|
// then we'll run over the "official" styles.
|
|
let mut themes: FxHashSet<String> = FxHashSet::default();
|
|
|
|
for entry in &cx.shared.themes {
|
|
let content = try_err!(fs::read(&entry), &entry);
|
|
let theme = try_none!(try_none!(entry.file_stem(), &entry).to_str(), &entry);
|
|
let extension = try_none!(try_none!(entry.extension(), &entry).to_str(), &entry);
|
|
cx.shared.fs.write(cx.path(&format!("{}.{}", theme, extension)), content.as_slice())?;
|
|
themes.insert(theme.to_owned());
|
|
}
|
|
|
|
let write = |p, c| cx.shared.fs.write(p, c);
|
|
if (*cx.shared).layout.logo.is_empty() {
|
|
write(cx.path("rust-logo.png"), static_files::RUST_LOGO)?;
|
|
}
|
|
if (*cx.shared).layout.favicon.is_empty() {
|
|
write(cx.path("favicon.ico"), static_files::RUST_FAVICON)?;
|
|
}
|
|
write(cx.path("brush.svg"), static_files::BRUSH_SVG)?;
|
|
write(cx.path("wheel.svg"), static_files::WHEEL_SVG)?;
|
|
write(cx.path("down-arrow.svg"), static_files::DOWN_ARROW_SVG)?;
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("light.css"),
|
|
static_files::themes::LIGHT,
|
|
options.enable_minification,
|
|
)?;
|
|
themes.insert("light".to_owned());
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("dark.css"),
|
|
static_files::themes::DARK,
|
|
options.enable_minification,
|
|
)?;
|
|
themes.insert("dark".to_owned());
|
|
|
|
let mut themes: Vec<&String> = themes.iter().collect();
|
|
themes.sort();
|
|
// To avoid theme switch latencies as much as possible, we put everything theme related
|
|
// at the beginning of the html files into another js file.
|
|
let theme_js = format!(
|
|
r#"var themes = document.getElementById("theme-choices");
|
|
var themePicker = document.getElementById("theme-picker");
|
|
|
|
function showThemeButtonState() {{
|
|
themes.style.display = "block";
|
|
themePicker.style.borderBottomRightRadius = "0";
|
|
themePicker.style.borderBottomLeftRadius = "0";
|
|
}}
|
|
|
|
function hideThemeButtonState() {{
|
|
themes.style.display = "none";
|
|
themePicker.style.borderBottomRightRadius = "3px";
|
|
themePicker.style.borderBottomLeftRadius = "3px";
|
|
}}
|
|
|
|
function switchThemeButtonState() {{
|
|
if (themes.style.display === "block") {{
|
|
hideThemeButtonState();
|
|
}} else {{
|
|
showThemeButtonState();
|
|
}}
|
|
}};
|
|
|
|
function handleThemeButtonsBlur(e) {{
|
|
var active = document.activeElement;
|
|
var related = e.relatedTarget;
|
|
|
|
if (active.id !== "themePicker" &&
|
|
(!active.parentNode || active.parentNode.id !== "theme-choices") &&
|
|
(!related ||
|
|
(related.id !== "themePicker" &&
|
|
(!related.parentNode || related.parentNode.id !== "theme-choices")))) {{
|
|
hideThemeButtonState();
|
|
}}
|
|
}}
|
|
|
|
themePicker.onclick = switchThemeButtonState;
|
|
themePicker.onblur = handleThemeButtonsBlur;
|
|
{}.forEach(function(item) {{
|
|
var but = document.createElement('button');
|
|
but.textContent = item;
|
|
but.onclick = function(el) {{
|
|
switchTheme(currentTheme, mainTheme, item, true);
|
|
}};
|
|
but.onblur = handleThemeButtonsBlur;
|
|
themes.appendChild(but);
|
|
}});"#,
|
|
serde_json::to_string(&themes).unwrap()
|
|
);
|
|
|
|
write_minify(&cx.shared.fs, cx.path("theme.js"), &theme_js, options.enable_minification)?;
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("main.js"),
|
|
static_files::MAIN_JS,
|
|
options.enable_minification,
|
|
)?;
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("settings.js"),
|
|
static_files::SETTINGS_JS,
|
|
options.enable_minification,
|
|
)?;
|
|
if cx.shared.include_sources {
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("source-script.js"),
|
|
static_files::sidebar::SOURCE_SCRIPT,
|
|
options.enable_minification,
|
|
)?;
|
|
}
|
|
|
|
{
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("storage.js"),
|
|
&format!(
|
|
"var resourcesSuffix = \"{}\";{}",
|
|
cx.shared.resource_suffix,
|
|
static_files::STORAGE_JS
|
|
),
|
|
options.enable_minification,
|
|
)?;
|
|
}
|
|
|
|
if let Some(ref css) = cx.shared.layout.css_file_extension {
|
|
let out = cx.path("theme.css");
|
|
let buffer = try_err!(fs::read_to_string(css), css);
|
|
if !options.enable_minification {
|
|
cx.shared.fs.write(&out, &buffer)?;
|
|
} else {
|
|
write_minify(&cx.shared.fs, out, &buffer, options.enable_minification)?;
|
|
}
|
|
}
|
|
write_minify(
|
|
&cx.shared.fs,
|
|
cx.path("normalize.css"),
|
|
static_files::NORMALIZE_CSS,
|
|
options.enable_minification,
|
|
)?;
|
|
write(cx.dst.join("FiraSans-Regular.woff"), static_files::fira_sans::REGULAR)?;
|
|
write(cx.dst.join("FiraSans-Medium.woff"), static_files::fira_sans::MEDIUM)?;
|
|
write(cx.dst.join("FiraSans-LICENSE.txt"), static_files::fira_sans::LICENSE)?;
|
|
write(cx.dst.join("SourceSerifPro-Regular.ttf.woff"), static_files::source_serif_pro::REGULAR)?;
|
|
write(cx.dst.join("SourceSerifPro-Bold.ttf.woff"), static_files::source_serif_pro::BOLD)?;
|
|
write(cx.dst.join("SourceSerifPro-It.ttf.woff"), static_files::source_serif_pro::ITALIC)?;
|
|
write(cx.dst.join("SourceSerifPro-LICENSE.md"), static_files::source_serif_pro::LICENSE)?;
|
|
write(cx.dst.join("SourceCodePro-Regular.woff"), static_files::source_code_pro::REGULAR)?;
|
|
write(cx.dst.join("SourceCodePro-Semibold.woff"), static_files::source_code_pro::SEMIBOLD)?;
|
|
write(cx.dst.join("SourceCodePro-LICENSE.txt"), static_files::source_code_pro::LICENSE)?;
|
|
write(cx.dst.join("LICENSE-MIT.txt"), static_files::LICENSE_MIT)?;
|
|
write(cx.dst.join("LICENSE-APACHE.txt"), static_files::LICENSE_APACHE)?;
|
|
write(cx.dst.join("COPYRIGHT.txt"), static_files::COPYRIGHT)?;
|
|
|
|
fn collect(path: &Path, krate: &str, key: &str) -> io::Result<(Vec<String>, Vec<String>)> {
|
|
let mut ret = Vec::new();
|
|
let mut krates = Vec::new();
|
|
|
|
if path.exists() {
|
|
for line in BufReader::new(File::open(path)?).lines() {
|
|
let line = line?;
|
|
if !line.starts_with(key) {
|
|
continue;
|
|
}
|
|
if line.starts_with(&format!(r#"{}["{}"]"#, key, krate)) {
|
|
continue;
|
|
}
|
|
ret.push(line.to_string());
|
|
krates.push(
|
|
line[key.len() + 2..]
|
|
.split('"')
|
|
.next()
|
|
.map(|s| s.to_owned())
|
|
.unwrap_or_else(|| String::new()),
|
|
);
|
|
}
|
|
}
|
|
Ok((ret, krates))
|
|
}
|
|
|
|
fn show_item(item: &IndexItem, krate: &str) -> String {
|
|
format!(
|
|
"{{'crate':'{}','ty':{},'name':'{}','desc':'{}','p':'{}'{}}}",
|
|
krate,
|
|
item.ty as usize,
|
|
item.name,
|
|
item.desc.replace("'", "\\'"),
|
|
item.path,
|
|
if let Some(p) = item.parent_idx { format!(",'parent':{}", p) } else { String::new() }
|
|
)
|
|
}
|
|
|
|
let dst = cx.dst.join(&format!("aliases{}.js", cx.shared.resource_suffix));
|
|
{
|
|
let (mut all_aliases, _) = try_err!(collect(&dst, &krate.name, "ALIASES"), &dst);
|
|
let mut output = String::with_capacity(100);
|
|
for (alias, items) in &cx.cache.aliases {
|
|
if items.is_empty() {
|
|
continue;
|
|
}
|
|
output.push_str(&format!(
|
|
"\"{}\":[{}],",
|
|
alias,
|
|
items.iter().map(|v| show_item(v, &krate.name)).collect::<Vec<_>>().join(",")
|
|
));
|
|
}
|
|
all_aliases.push(format!("ALIASES[\"{}\"] = {{{}}};", krate.name, output));
|
|
all_aliases.sort();
|
|
let mut v = Buffer::html();
|
|
writeln!(&mut v, "var ALIASES = {{}};");
|
|
for aliases in &all_aliases {
|
|
writeln!(&mut v, "{}", aliases);
|
|
}
|
|
cx.shared.fs.write(&dst, v.into_inner().into_bytes())?;
|
|
}
|
|
|
|
use std::ffi::OsString;
|
|
|
|
#[derive(Debug)]
|
|
struct Hierarchy {
|
|
elem: OsString,
|
|
children: FxHashMap<OsString, Hierarchy>,
|
|
elems: FxHashSet<OsString>,
|
|
}
|
|
|
|
impl Hierarchy {
|
|
fn new(elem: OsString) -> Hierarchy {
|
|
Hierarchy { elem, children: FxHashMap::default(), elems: FxHashSet::default() }
|
|
}
|
|
|
|
fn to_json_string(&self) -> String {
|
|
let mut subs: Vec<&Hierarchy> = self.children.values().collect();
|
|
subs.sort_unstable_by(|a, b| a.elem.cmp(&b.elem));
|
|
let mut files = self
|
|
.elems
|
|
.iter()
|
|
.map(|s| format!("\"{}\"", s.to_str().expect("invalid osstring conversion")))
|
|
.collect::<Vec<_>>();
|
|
files.sort_unstable_by(|a, b| a.cmp(b));
|
|
let subs = subs.iter().map(|s| s.to_json_string()).collect::<Vec<_>>().join(",");
|
|
let dirs =
|
|
if subs.is_empty() { String::new() } else { format!(",\"dirs\":[{}]", subs) };
|
|
let files = files.join(",");
|
|
let files =
|
|
if files.is_empty() { String::new() } else { format!(",\"files\":[{}]", files) };
|
|
format!(
|
|
"{{\"name\":\"{name}\"{dirs}{files}}}",
|
|
name = self.elem.to_str().expect("invalid osstring conversion"),
|
|
dirs = dirs,
|
|
files = files
|
|
)
|
|
}
|
|
}
|
|
|
|
if cx.shared.include_sources {
|
|
let mut hierarchy = Hierarchy::new(OsString::new());
|
|
for source in cx
|
|
.shared
|
|
.local_sources
|
|
.iter()
|
|
.filter_map(|p| p.0.strip_prefix(&cx.shared.src_root).ok())
|
|
{
|
|
let mut h = &mut hierarchy;
|
|
let mut elems = source
|
|
.components()
|
|
.filter_map(|s| match s {
|
|
Component::Normal(s) => Some(s.to_owned()),
|
|
_ => None,
|
|
})
|
|
.peekable();
|
|
loop {
|
|
let cur_elem = elems.next().expect("empty file path");
|
|
if elems.peek().is_none() {
|
|
h.elems.insert(cur_elem);
|
|
break;
|
|
} else {
|
|
let e = cur_elem.clone();
|
|
h.children.entry(cur_elem.clone()).or_insert_with(|| Hierarchy::new(e));
|
|
h = h.children.get_mut(&cur_elem).expect("not found child");
|
|
}
|
|
}
|
|
}
|
|
|
|
let dst = cx.dst.join(&format!("source-files{}.js", cx.shared.resource_suffix));
|
|
let (mut all_sources, _krates) = try_err!(collect(&dst, &krate.name, "sourcesIndex"), &dst);
|
|
all_sources.push(format!(
|
|
"sourcesIndex[\"{}\"] = {};",
|
|
&krate.name,
|
|
hierarchy.to_json_string()
|
|
));
|
|
all_sources.sort();
|
|
let v = format!(
|
|
"var N = null;var sourcesIndex = {{}};\n{}\ncreateSourceSidebar();\n",
|
|
all_sources.join("\n")
|
|
);
|
|
cx.shared.fs.write(&dst, v.as_bytes())?;
|
|
}
|
|
|
|
// Update the search index
|
|
let dst = cx.dst.join(&format!("search-index{}.js", cx.shared.resource_suffix));
|
|
let (mut all_indexes, mut krates) = try_err!(collect(&dst, &krate.name, "searchIndex"), &dst);
|
|
all_indexes.push(search_index);
|
|
|
|
// Sort the indexes by crate so the file will be generated identically even
|
|
// with rustdoc running in parallel.
|
|
all_indexes.sort();
|
|
{
|
|
let mut v = String::from("var searchIndex={};\n");
|
|
v.push_str(&all_indexes.join("\n"));
|
|
// "addSearchOptions" has to be called first so the crate filtering can be set before the
|
|
// search might start (if it's set into the URL for example).
|
|
v.push_str("\naddSearchOptions(searchIndex);initSearch(searchIndex);");
|
|
cx.shared.fs.write(&dst, &v)?;
|
|
}
|
|
if options.enable_index_page {
|
|
if let Some(index_page) = options.index_page.clone() {
|
|
let mut md_opts = options.clone();
|
|
md_opts.output = cx.dst.clone();
|
|
md_opts.external_html = (*cx.shared).layout.external_html.clone();
|
|
|
|
crate::markdown::render(index_page, md_opts, diag, cx.shared.edition);
|
|
} else {
|
|
let dst = cx.dst.join("index.html");
|
|
let page = layout::Page {
|
|
title: "Index of crates",
|
|
css_class: "mod",
|
|
root_path: "./",
|
|
static_root_path: cx.shared.static_root_path.as_deref(),
|
|
description: "List of crates",
|
|
keywords: BASIC_KEYWORDS,
|
|
resource_suffix: &cx.shared.resource_suffix,
|
|
extra_scripts: &[],
|
|
static_extra_scripts: &[],
|
|
};
|
|
krates.push(krate.name.clone());
|
|
krates.sort();
|
|
krates.dedup();
|
|
|
|
let content = format!(
|
|
"<h1 class='fqn'>\
|
|
<span class='in-band'>List of all crates</span>\
|
|
</h1><ul class='mod'>{}</ul>",
|
|
krates
|
|
.iter()
|
|
.map(|s| {
|
|
format!("<li><a href=\"{}index.html\">{}</li>", ensure_trailing_slash(s), s)
|
|
})
|
|
.collect::<String>()
|
|
);
|
|
let v = layout::render(&cx.shared.layout, &page, "", content, &cx.shared.themes);
|
|
cx.shared.fs.write(&dst, v.as_bytes())?;
|
|
}
|
|
}
|
|
|
|
// Update the list of all implementors for traits
|
|
let dst = cx.dst.join("implementors");
|
|
for (&did, imps) in &cx.cache.implementors {
|
|
// Private modules can leak through to this phase of rustdoc, which
|
|
// could contain implementations for otherwise private types. In some
|
|
// rare cases we could find an implementation for an item which wasn't
|
|
// indexed, so we just skip this step in that case.
|
|
//
|
|
// FIXME: this is a vague explanation for why this can't be a `get`, in
|
|
// theory it should be...
|
|
let &(ref remote_path, remote_item_type) = match cx.cache.paths.get(&did) {
|
|
Some(p) => p,
|
|
None => match cx.cache.external_paths.get(&did) {
|
|
Some(p) => p,
|
|
None => continue,
|
|
},
|
|
};
|
|
|
|
#[derive(Serialize)]
|
|
struct Implementor {
|
|
text: String,
|
|
synthetic: bool,
|
|
types: Vec<String>,
|
|
}
|
|
|
|
let implementors = imps
|
|
.iter()
|
|
.filter_map(|imp| {
|
|
// If the trait and implementation are in the same crate, then
|
|
// there's no need to emit information about it (there's inlining
|
|
// going on). If they're in different crates then the crate defining
|
|
// the trait will be interested in our implementation.
|
|
//
|
|
// If the implementation is from another crate then that crate
|
|
// should add it.
|
|
if imp.impl_item.def_id.krate == did.krate || !imp.impl_item.def_id.is_local() {
|
|
None
|
|
} else {
|
|
Some(Implementor {
|
|
text: imp.inner_impl().print().to_string(),
|
|
synthetic: imp.inner_impl().synthetic,
|
|
types: collect_paths_for_type(imp.inner_impl().for_.clone()),
|
|
})
|
|
}
|
|
})
|
|
.collect::<Vec<_>>();
|
|
|
|
// Only create a js file if we have impls to add to it. If the trait is
|
|
// documented locally though we always create the file to avoid dead
|
|
// links.
|
|
if implementors.is_empty() && !cx.cache.paths.contains_key(&did) {
|
|
continue;
|
|
}
|
|
|
|
let implementors = format!(
|
|
r#"implementors["{}"] = {};"#,
|
|
krate.name,
|
|
serde_json::to_string(&implementors).unwrap()
|
|
);
|
|
|
|
let mut mydst = dst.clone();
|
|
for part in &remote_path[..remote_path.len() - 1] {
|
|
mydst.push(part);
|
|
}
|
|
cx.shared.ensure_dir(&mydst)?;
|
|
mydst.push(&format!("{}.{}.js", remote_item_type, remote_path[remote_path.len() - 1]));
|
|
|
|
let (mut all_implementors, _) =
|
|
try_err!(collect(&mydst, &krate.name, "implementors"), &mydst);
|
|
all_implementors.push(implementors);
|
|
// Sort the implementors by crate so the file will be generated
|
|
// identically even with rustdoc running in parallel.
|
|
all_implementors.sort();
|
|
|
|
let mut v = String::from("(function() {var implementors = {};\n");
|
|
for implementor in &all_implementors {
|
|
writeln!(v, "{}", *implementor).unwrap();
|
|
}
|
|
v.push_str(
|
|
"if (window.register_implementors) {\
|
|
window.register_implementors(implementors);\
|
|
} else {\
|
|
window.pending_implementors = implementors;\
|
|
}",
|
|
);
|
|
v.push_str("})()");
|
|
cx.shared.fs.write(&mydst, &v)?;
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn write_minify(
|
|
fs: &DocFS,
|
|
dst: PathBuf,
|
|
contents: &str,
|
|
enable_minification: bool,
|
|
) -> Result<(), Error> {
|
|
if enable_minification {
|
|
if dst.extension() == Some(&OsStr::new("css")) {
|
|
let res = try_none!(minifier::css::minify(contents).ok(), &dst);
|
|
fs.write(dst, res.as_bytes())
|
|
} else {
|
|
fs.write(dst, minifier::js::minify(contents).as_bytes())
|
|
}
|
|
} else {
|
|
fs.write(dst, contents.as_bytes())
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Eq, PartialEq, Hash)]
|
|
struct ItemEntry {
|
|
url: String,
|
|
name: String,
|
|
}
|
|
|
|
impl ItemEntry {
|
|
fn new(mut url: String, name: String) -> ItemEntry {
|
|
while url.starts_with('/') {
|
|
url.remove(0);
|
|
}
|
|
ItemEntry { url, name }
|
|
}
|
|
}
|
|
|
|
impl ItemEntry {
|
|
crate fn print(&self) -> impl fmt::Display + '_ {
|
|
crate::html::format::display_fn(move |f| {
|
|
write!(f, "<a href='{}'>{}</a>", self.url, Escape(&self.name))
|
|
})
|
|
}
|
|
}
|
|
|
|
impl PartialOrd for ItemEntry {
|
|
fn partial_cmp(&self, other: &ItemEntry) -> Option<::std::cmp::Ordering> {
|
|
Some(self.cmp(other))
|
|
}
|
|
}
|
|
|
|
impl Ord for ItemEntry {
|
|
fn cmp(&self, other: &ItemEntry) -> ::std::cmp::Ordering {
|
|
self.name.cmp(&other.name)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct AllTypes {
|
|
structs: FxHashSet<ItemEntry>,
|
|
enums: FxHashSet<ItemEntry>,
|
|
unions: FxHashSet<ItemEntry>,
|
|
primitives: FxHashSet<ItemEntry>,
|
|
traits: FxHashSet<ItemEntry>,
|
|
macros: FxHashSet<ItemEntry>,
|
|
functions: FxHashSet<ItemEntry>,
|
|
typedefs: FxHashSet<ItemEntry>,
|
|
opaque_tys: FxHashSet<ItemEntry>,
|
|
statics: FxHashSet<ItemEntry>,
|
|
constants: FxHashSet<ItemEntry>,
|
|
keywords: FxHashSet<ItemEntry>,
|
|
attributes: FxHashSet<ItemEntry>,
|
|
derives: FxHashSet<ItemEntry>,
|
|
trait_aliases: FxHashSet<ItemEntry>,
|
|
}
|
|
|
|
impl AllTypes {
|
|
fn new() -> AllTypes {
|
|
let new_set = |cap| FxHashSet::with_capacity_and_hasher(cap, Default::default());
|
|
AllTypes {
|
|
structs: new_set(100),
|
|
enums: new_set(100),
|
|
unions: new_set(100),
|
|
primitives: new_set(26),
|
|
traits: new_set(100),
|
|
macros: new_set(100),
|
|
functions: new_set(100),
|
|
typedefs: new_set(100),
|
|
opaque_tys: new_set(100),
|
|
statics: new_set(100),
|
|
constants: new_set(100),
|
|
keywords: new_set(100),
|
|
attributes: new_set(100),
|
|
derives: new_set(100),
|
|
trait_aliases: new_set(100),
|
|
}
|
|
}
|
|
|
|
fn append(&mut self, item_name: String, item_type: &ItemType) {
|
|
let mut url: Vec<_> = item_name.split("::").skip(1).collect();
|
|
if let Some(name) = url.pop() {
|
|
let new_url = format!("{}/{}.{}.html", url.join("/"), item_type, name);
|
|
url.push(name);
|
|
let name = url.join("::");
|
|
match *item_type {
|
|
ItemType::Struct => self.structs.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Enum => self.enums.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Union => self.unions.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Primitive => self.primitives.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Trait => self.traits.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Macro => self.macros.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Function => self.functions.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Typedef => self.typedefs.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::OpaqueTy => self.opaque_tys.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Static => self.statics.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::Constant => self.constants.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::ProcAttribute => self.attributes.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::ProcDerive => self.derives.insert(ItemEntry::new(new_url, name)),
|
|
ItemType::TraitAlias => self.trait_aliases.insert(ItemEntry::new(new_url, name)),
|
|
_ => true,
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
fn print_entries(f: &mut Buffer, e: &FxHashSet<ItemEntry>, title: &str, class: &str) {
|
|
if !e.is_empty() {
|
|
let mut e: Vec<&ItemEntry> = e.iter().collect();
|
|
e.sort();
|
|
write!(
|
|
f,
|
|
"<h3 id='{}'>{}</h3><ul class='{} docblock'>{}</ul>",
|
|
title,
|
|
Escape(title),
|
|
class,
|
|
e.iter().map(|s| format!("<li>{}</li>", s.print())).collect::<String>()
|
|
);
|
|
}
|
|
}
|
|
|
|
impl AllTypes {
|
|
fn print(self, f: &mut Buffer) {
|
|
write!(
|
|
f,
|
|
"<h1 class='fqn'>\
|
|
<span class='out-of-band'>\
|
|
<span id='render-detail'>\
|
|
<a id=\"toggle-all-docs\" href=\"javascript:void(0)\" title=\"collapse all docs\">\
|
|
[<span class='inner'>−</span>]\
|
|
</a>\
|
|
</span>
|
|
</span>
|
|
<span class='in-band'>List of all items</span>\
|
|
</h1>"
|
|
);
|
|
print_entries(f, &self.structs, "Structs", "structs");
|
|
print_entries(f, &self.enums, "Enums", "enums");
|
|
print_entries(f, &self.unions, "Unions", "unions");
|
|
print_entries(f, &self.primitives, "Primitives", "primitives");
|
|
print_entries(f, &self.traits, "Traits", "traits");
|
|
print_entries(f, &self.macros, "Macros", "macros");
|
|
print_entries(f, &self.attributes, "Attribute Macros", "attributes");
|
|
print_entries(f, &self.derives, "Derive Macros", "derives");
|
|
print_entries(f, &self.functions, "Functions", "functions");
|
|
print_entries(f, &self.typedefs, "Typedefs", "typedefs");
|
|
print_entries(f, &self.trait_aliases, "Trait Aliases", "trait-aliases");
|
|
print_entries(f, &self.opaque_tys, "Opaque Types", "opaque-types");
|
|
print_entries(f, &self.statics, "Statics", "statics");
|
|
print_entries(f, &self.constants, "Constants", "constants")
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
enum Setting {
|
|
Section { description: &'static str, sub_settings: Vec<Setting> },
|
|
Entry { js_data_name: &'static str, description: &'static str, default_value: bool },
|
|
}
|
|
|
|
impl Setting {
|
|
fn display(&self) -> String {
|
|
match *self {
|
|
Setting::Section { ref description, ref sub_settings } => format!(
|
|
"<div class='setting-line'>\
|
|
<div class='title'>{}</div>\
|
|
<div class='sub-settings'>{}</div>
|
|
</div>",
|
|
description,
|
|
sub_settings.iter().map(|s| s.display()).collect::<String>()
|
|
),
|
|
Setting::Entry { ref js_data_name, ref description, ref default_value } => format!(
|
|
"<div class='setting-line'>\
|
|
<label class='toggle'>\
|
|
<input type='checkbox' id='{}' {}>\
|
|
<span class='slider'></span>\
|
|
</label>\
|
|
<div>{}</div>\
|
|
</div>",
|
|
js_data_name,
|
|
if *default_value { " checked" } else { "" },
|
|
description,
|
|
),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<(&'static str, &'static str, bool)> for Setting {
|
|
fn from(values: (&'static str, &'static str, bool)) -> Setting {
|
|
Setting::Entry { js_data_name: values.0, description: values.1, default_value: values.2 }
|
|
}
|
|
}
|
|
|
|
impl<T: Into<Setting>> From<(&'static str, Vec<T>)> for Setting {
|
|
fn from(values: (&'static str, Vec<T>)) -> Setting {
|
|
Setting::Section {
|
|
description: values.0,
|
|
sub_settings: values.1.into_iter().map(|v| v.into()).collect::<Vec<_>>(),
|
|
}
|
|
}
|
|
}
|
|
|
|
fn settings(root_path: &str, suffix: &str) -> String {
|
|
// (id, explanation, default value)
|
|
let settings: &[Setting] = &[
|
|
(
|
|
"Auto-hide item declarations",
|
|
vec![
|
|
("auto-hide-struct", "Auto-hide structs declaration", true),
|
|
("auto-hide-enum", "Auto-hide enums declaration", false),
|
|
("auto-hide-union", "Auto-hide unions declaration", true),
|
|
("auto-hide-trait", "Auto-hide traits declaration", true),
|
|
("auto-hide-macro", "Auto-hide macros declaration", false),
|
|
],
|
|
)
|
|
.into(),
|
|
("auto-hide-attributes", "Auto-hide item attributes.", true).into(),
|
|
("auto-hide-method-docs", "Auto-hide item methods' documentation", false).into(),
|
|
("auto-hide-trait-implementations", "Auto-hide trait implementations documentation", true)
|
|
.into(),
|
|
("go-to-only-result", "Directly go to item in search if there is only one result", false)
|
|
.into(),
|
|
("line-numbers", "Show line numbers on code examples", false).into(),
|
|
("disable-shortcuts", "Disable keyboard shortcuts", false).into(),
|
|
];
|
|
format!(
|
|
"<h1 class='fqn'>\
|
|
<span class='in-band'>Rustdoc settings</span>\
|
|
</h1>\
|
|
<div class='settings'>{}</div>\
|
|
<script src='{}settings{}.js'></script>",
|
|
settings.iter().map(|s| s.display()).collect::<String>(),
|
|
root_path,
|
|
suffix
|
|
)
|
|
}
|
|
|
|
impl Context {
|
|
fn derive_id(&self, id: String) -> String {
|
|
let mut map = self.id_map.borrow_mut();
|
|
map.derive(id)
|
|
}
|
|
|
|
/// String representation of how to get back to the root path of the 'doc/'
|
|
/// folder in terms of a relative URL.
|
|
fn root_path(&self) -> String {
|
|
"../".repeat(self.current.len())
|
|
}
|
|
|
|
/// Main method for rendering a crate.
|
|
///
|
|
/// This currently isn't parallelized, but it'd be pretty easy to add
|
|
/// parallelization to this function.
|
|
fn krate(self, mut krate: clean::Crate) -> Result<(), Error> {
|
|
let mut item = match krate.module.take() {
|
|
Some(i) => i,
|
|
None => return Ok(()),
|
|
};
|
|
let final_file = self.dst.join(&krate.name).join("all.html");
|
|
let settings_file = self.dst.join("settings.html");
|
|
|
|
let crate_name = krate.name.clone();
|
|
item.name = Some(krate.name);
|
|
|
|
let mut all = AllTypes::new();
|
|
|
|
{
|
|
// Render the crate documentation
|
|
let mut work = vec![(self.clone(), item)];
|
|
|
|
while let Some((mut cx, item)) = work.pop() {
|
|
cx.item(item, &mut all, |cx, item| work.push((cx.clone(), item)))?
|
|
}
|
|
}
|
|
|
|
let mut root_path = self.dst.to_str().expect("invalid path").to_owned();
|
|
if !root_path.ends_with('/') {
|
|
root_path.push('/');
|
|
}
|
|
let mut page = layout::Page {
|
|
title: "List of all items in this crate",
|
|
css_class: "mod",
|
|
root_path: "../",
|
|
static_root_path: self.shared.static_root_path.as_deref(),
|
|
description: "List of all items in this crate",
|
|
keywords: BASIC_KEYWORDS,
|
|
resource_suffix: &self.shared.resource_suffix,
|
|
extra_scripts: &[],
|
|
static_extra_scripts: &[],
|
|
};
|
|
let sidebar = if let Some(ref version) = self.cache.crate_version {
|
|
format!(
|
|
"<p class='location'>Crate {}</p>\
|
|
<div class='block version'>\
|
|
<p>Version {}</p>\
|
|
</div>\
|
|
<a id='all-types' href='index.html'><p>Back to index</p></a>",
|
|
crate_name, version
|
|
)
|
|
} else {
|
|
String::new()
|
|
};
|
|
let v = layout::render(
|
|
&self.shared.layout,
|
|
&page,
|
|
sidebar,
|
|
|buf: &mut Buffer| all.print(buf),
|
|
&self.shared.themes,
|
|
);
|
|
self.shared.fs.write(&final_file, v.as_bytes())?;
|
|
|
|
// Generating settings page.
|
|
page.title = "Rustdoc settings";
|
|
page.description = "Settings of Rustdoc";
|
|
page.root_path = "./";
|
|
|
|
let mut themes = self.shared.themes.clone();
|
|
let sidebar = "<p class='location'>Settings</p><div class='sidebar-elems'></div>";
|
|
themes.push(PathBuf::from("settings.css"));
|
|
let v = layout::render(
|
|
&self.shared.layout,
|
|
&page,
|
|
sidebar,
|
|
settings(
|
|
self.shared.static_root_path.as_deref().unwrap_or("./"),
|
|
&self.shared.resource_suffix,
|
|
),
|
|
&themes,
|
|
);
|
|
self.shared.fs.write(&settings_file, v.as_bytes())?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn render_item(&self, it: &clean::Item, pushname: bool) -> String {
|
|
// A little unfortunate that this is done like this, but it sure
|
|
// does make formatting *a lot* nicer.
|
|
CURRENT_DEPTH.with(|slot| {
|
|
slot.set(self.current.len());
|
|
});
|
|
|
|
let mut title = if it.is_primitive() || it.is_keyword() {
|
|
// No need to include the namespace for primitive types and keywords
|
|
String::new()
|
|
} else {
|
|
self.current.join("::")
|
|
};
|
|
if pushname {
|
|
if !title.is_empty() {
|
|
title.push_str("::");
|
|
}
|
|
title.push_str(it.name.as_ref().unwrap());
|
|
}
|
|
title.push_str(" - Rust");
|
|
let tyname = it.type_();
|
|
let desc = if it.is_crate() {
|
|
format!("API documentation for the Rust `{}` crate.", self.shared.layout.krate)
|
|
} else {
|
|
format!(
|
|
"API documentation for the Rust `{}` {} in crate `{}`.",
|
|
it.name.as_ref().unwrap(),
|
|
tyname,
|
|
self.shared.layout.krate
|
|
)
|
|
};
|
|
let keywords = make_item_keywords(it);
|
|
let page = layout::Page {
|
|
css_class: tyname.as_str(),
|
|
root_path: &self.root_path(),
|
|
static_root_path: self.shared.static_root_path.as_deref(),
|
|
title: &title,
|
|
description: &desc,
|
|
keywords: &keywords,
|
|
resource_suffix: &self.shared.resource_suffix,
|
|
extra_scripts: &[],
|
|
static_extra_scripts: &[],
|
|
};
|
|
|
|
{
|
|
self.id_map.borrow_mut().reset();
|
|
self.id_map.borrow_mut().populate(initial_ids());
|
|
}
|
|
|
|
if !self.render_redirect_pages {
|
|
layout::render(
|
|
&self.shared.layout,
|
|
&page,
|
|
|buf: &mut _| print_sidebar(self, it, buf),
|
|
|buf: &mut _| print_item(self, it, buf),
|
|
&self.shared.themes,
|
|
)
|
|
} else {
|
|
let mut url = self.root_path();
|
|
if let Some(&(ref names, ty)) = self.cache.paths.get(&it.def_id) {
|
|
for name in &names[..names.len() - 1] {
|
|
url.push_str(name);
|
|
url.push_str("/");
|
|
}
|
|
url.push_str(&item_path(ty, names.last().unwrap()));
|
|
layout::redirect(&url)
|
|
} else {
|
|
String::new()
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Non-parallelized version of rendering an item. This will take the input
|
|
/// item, render its contents, and then invoke the specified closure with
|
|
/// all sub-items which need to be rendered.
|
|
///
|
|
/// The rendering driver uses this closure to queue up more work.
|
|
fn item<F>(&mut self, item: clean::Item, all: &mut AllTypes, mut f: F) -> Result<(), Error>
|
|
where
|
|
F: FnMut(&mut Context, clean::Item),
|
|
{
|
|
// Stripped modules survive the rustdoc passes (i.e., `strip-private`)
|
|
// if they contain impls for public types. These modules can also
|
|
// contain items such as publicly re-exported structures.
|
|
//
|
|
// External crates will provide links to these structures, so
|
|
// these modules are recursed into, but not rendered normally
|
|
// (a flag on the context).
|
|
if !self.render_redirect_pages {
|
|
self.render_redirect_pages = item.is_stripped();
|
|
}
|
|
|
|
if item.is_mod() {
|
|
// modules are special because they add a namespace. We also need to
|
|
// recurse into the items of the module as well.
|
|
let name = item.name.as_ref().unwrap().to_string();
|
|
let scx = &self.shared;
|
|
if name.is_empty() {
|
|
panic!("Unexpected empty destination: {:?}", self.current);
|
|
}
|
|
let prev = self.dst.clone();
|
|
self.dst.push(&name);
|
|
self.current.push(name);
|
|
|
|
info!("Recursing into {}", self.dst.display());
|
|
|
|
let buf = self.render_item(&item, false);
|
|
// buf will be empty if the module is stripped and there is no redirect for it
|
|
if !buf.is_empty() {
|
|
self.shared.ensure_dir(&self.dst)?;
|
|
let joint_dst = self.dst.join("index.html");
|
|
scx.fs.write(&joint_dst, buf.as_bytes())?;
|
|
}
|
|
|
|
let m = match item.inner {
|
|
clean::StrippedItem(box clean::ModuleItem(m)) | clean::ModuleItem(m) => m,
|
|
_ => unreachable!(),
|
|
};
|
|
|
|
// Render sidebar-items.js used throughout this module.
|
|
if !self.render_redirect_pages {
|
|
let items = self.build_sidebar_items(&m);
|
|
let js_dst = self.dst.join("sidebar-items.js");
|
|
let v = format!("initSidebarItems({});", serde_json::to_string(&items).unwrap());
|
|
scx.fs.write(&js_dst, &v)?;
|
|
}
|
|
|
|
for item in m.items {
|
|
f(self, item);
|
|
}
|
|
|
|
info!("Recursed; leaving {}", self.dst.display());
|
|
|
|
// Go back to where we were at
|
|
self.dst = prev;
|
|
self.current.pop().unwrap();
|
|
} else if item.name.is_some() {
|
|
let buf = self.render_item(&item, true);
|
|
// buf will be empty if the item is stripped and there is no redirect for it
|
|
if !buf.is_empty() {
|
|
let name = item.name.as_ref().unwrap();
|
|
let item_type = item.type_();
|
|
let file_name = &item_path(item_type, name);
|
|
self.shared.ensure_dir(&self.dst)?;
|
|
let joint_dst = self.dst.join(file_name);
|
|
self.shared.fs.write(&joint_dst, buf.as_bytes())?;
|
|
|
|
if !self.render_redirect_pages {
|
|
all.append(full_path(self, &item), &item_type);
|
|
}
|
|
if self.shared.generate_redirect_pages {
|
|
// Redirect from a sane URL using the namespace to Rustdoc's
|
|
// URL for the page.
|
|
let redir_name = format!("{}.{}.html", name, item_type.name_space());
|
|
let redir_dst = self.dst.join(redir_name);
|
|
let v = layout::redirect(file_name);
|
|
self.shared.fs.write(&redir_dst, v.as_bytes())?;
|
|
}
|
|
// If the item is a macro, redirect from the old macro URL (with !)
|
|
// to the new one (without).
|
|
if item_type == ItemType::Macro {
|
|
let redir_name = format!("{}.{}!.html", item_type, name);
|
|
let redir_dst = self.dst.join(redir_name);
|
|
let v = layout::redirect(file_name);
|
|
self.shared.fs.write(&redir_dst, v.as_bytes())?;
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn build_sidebar_items(&self, m: &clean::Module) -> BTreeMap<String, Vec<NameDoc>> {
|
|
// BTreeMap instead of HashMap to get a sorted output
|
|
let mut map: BTreeMap<_, Vec<_>> = BTreeMap::new();
|
|
for item in &m.items {
|
|
if item.is_stripped() {
|
|
continue;
|
|
}
|
|
|
|
let short = item.type_();
|
|
let myname = match item.name {
|
|
None => continue,
|
|
Some(ref s) => s.to_string(),
|
|
};
|
|
let short = short.to_string();
|
|
map.entry(short)
|
|
.or_default()
|
|
.push((myname, Some(plain_summary_line(item.doc_value()))));
|
|
}
|
|
|
|
if self.shared.sort_modules_alphabetically {
|
|
for (_, items) in &mut map {
|
|
items.sort();
|
|
}
|
|
}
|
|
map
|
|
}
|
|
}
|
|
|
|
impl Context {
|
|
/// Generates a url appropriate for an `href` attribute back to the source of
|
|
/// this item.
|
|
///
|
|
/// The url generated, when clicked, will redirect the browser back to the
|
|
/// original source code.
|
|
///
|
|
/// If `None` is returned, then a source link couldn't be generated. This
|
|
/// may happen, for example, with externally inlined items where the source
|
|
/// of their crate documentation isn't known.
|
|
fn src_href(&self, item: &clean::Item) -> Option<String> {
|
|
let mut root = self.root_path();
|
|
|
|
let mut path = String::new();
|
|
|
|
// We can safely ignore macros from other libraries
|
|
let file = match item.source.filename {
|
|
FileName::Real(ref path) => path,
|
|
_ => return None,
|
|
};
|
|
|
|
let (krate, path) = if item.def_id.is_local() {
|
|
if let Some(path) = self.shared.local_sources.get(file) {
|
|
(&self.shared.layout.krate, path)
|
|
} else {
|
|
return None;
|
|
}
|
|
} else {
|
|
let (krate, src_root) = match *self.cache.extern_locations.get(&item.def_id.krate)? {
|
|
(ref name, ref src, Local) => (name, src),
|
|
(ref name, ref src, Remote(ref s)) => {
|
|
root = s.to_string();
|
|
(name, src)
|
|
}
|
|
(_, _, Unknown) => return None,
|
|
};
|
|
|
|
sources::clean_path(&src_root, file, false, |component| {
|
|
path.push_str(&component.to_string_lossy());
|
|
path.push('/');
|
|
});
|
|
let mut fname = file.file_name().expect("source has no filename").to_os_string();
|
|
fname.push(".html");
|
|
path.push_str(&fname.to_string_lossy());
|
|
(krate, &path)
|
|
};
|
|
|
|
let lines = if item.source.loline == item.source.hiline {
|
|
item.source.loline.to_string()
|
|
} else {
|
|
format!("{}-{}", item.source.loline, item.source.hiline)
|
|
};
|
|
Some(format!(
|
|
"{root}src/{krate}/{path}#{lines}",
|
|
root = Escape(&root),
|
|
krate = krate,
|
|
path = path,
|
|
lines = lines
|
|
))
|
|
}
|
|
}
|
|
|
|
fn wrap_into_docblock<F>(w: &mut Buffer, f: F)
|
|
where
|
|
F: FnOnce(&mut Buffer),
|
|
{
|
|
write!(w, "<div class=\"docblock type-decl hidden-by-usual-hider\">");
|
|
f(w);
|
|
write!(w, "</div>")
|
|
}
|
|
|
|
fn print_item(cx: &Context, item: &clean::Item, buf: &mut Buffer) {
|
|
debug_assert!(!item.is_stripped());
|
|
// Write the breadcrumb trail header for the top
|
|
write!(buf, "<h1 class='fqn'><span class='out-of-band'>");
|
|
if let Some(version) = item.stable_since() {
|
|
write!(
|
|
buf,
|
|
"<span class='since' title='Stable since Rust version {0}'>{0}</span>",
|
|
version
|
|
);
|
|
}
|
|
write!(
|
|
buf,
|
|
"<span id='render-detail'>\
|
|
<a id=\"toggle-all-docs\" href=\"javascript:void(0)\" \
|
|
title=\"collapse all docs\">\
|
|
[<span class='inner'>−</span>]\
|
|
</a>\
|
|
</span>"
|
|
);
|
|
|
|
// Write `src` tag
|
|
//
|
|
// When this item is part of a `pub use` in a downstream crate, the
|
|
// [src] link in the downstream documentation will actually come back to
|
|
// this page, and this link will be auto-clicked. The `id` attribute is
|
|
// used to find the link to auto-click.
|
|
if cx.shared.include_sources && !item.is_primitive() {
|
|
if let Some(l) = cx.src_href(item) {
|
|
write!(buf, "<a class='srclink' href='{}' title='{}'>[src]</a>", l, "goto source code");
|
|
}
|
|
}
|
|
|
|
write!(buf, "</span>"); // out-of-band
|
|
write!(buf, "<span class='in-band'>");
|
|
let name = match item.inner {
|
|
clean::ModuleItem(ref m) => {
|
|
if m.is_crate {
|
|
"Crate "
|
|
} else {
|
|
"Module "
|
|
}
|
|
}
|
|
clean::FunctionItem(..) | clean::ForeignFunctionItem(..) => "Function ",
|
|
clean::TraitItem(..) => "Trait ",
|
|
clean::StructItem(..) => "Struct ",
|
|
clean::UnionItem(..) => "Union ",
|
|
clean::EnumItem(..) => "Enum ",
|
|
clean::TypedefItem(..) => "Type Definition ",
|
|
clean::MacroItem(..) => "Macro ",
|
|
clean::ProcMacroItem(ref mac) => match mac.kind {
|
|
MacroKind::Bang => "Macro ",
|
|
MacroKind::Attr => "Attribute Macro ",
|
|
MacroKind::Derive => "Derive Macro ",
|
|
},
|
|
clean::PrimitiveItem(..) => "Primitive Type ",
|
|
clean::StaticItem(..) | clean::ForeignStaticItem(..) => "Static ",
|
|
clean::ConstantItem(..) => "Constant ",
|
|
clean::ForeignTypeItem => "Foreign Type ",
|
|
clean::KeywordItem(..) => "Keyword ",
|
|
clean::OpaqueTyItem(..) => "Opaque Type ",
|
|
clean::TraitAliasItem(..) => "Trait Alias ",
|
|
_ => {
|
|
// We don't generate pages for any other type.
|
|
unreachable!();
|
|
}
|
|
};
|
|
buf.write_str(name);
|
|
if !item.is_primitive() && !item.is_keyword() {
|
|
let cur = &cx.current;
|
|
let amt = if item.is_mod() { cur.len() - 1 } else { cur.len() };
|
|
for (i, component) in cur.iter().enumerate().take(amt) {
|
|
write!(
|
|
buf,
|
|
"<a href='{}index.html'>{}</a>::<wbr>",
|
|
"../".repeat(cur.len() - i - 1),
|
|
component
|
|
);
|
|
}
|
|
}
|
|
write!(buf, "<a class=\"{}\" href=''>{}</a>", item.type_(), item.name.as_ref().unwrap());
|
|
|
|
write!(buf, "</span></h1>"); // in-band
|
|
|
|
match item.inner {
|
|
clean::ModuleItem(ref m) => item_module(buf, cx, item, &m.items),
|
|
clean::FunctionItem(ref f) | clean::ForeignFunctionItem(ref f) => {
|
|
item_function(buf, cx, item, f)
|
|
}
|
|
clean::TraitItem(ref t) => item_trait(buf, cx, item, t),
|
|
clean::StructItem(ref s) => item_struct(buf, cx, item, s),
|
|
clean::UnionItem(ref s) => item_union(buf, cx, item, s),
|
|
clean::EnumItem(ref e) => item_enum(buf, cx, item, e),
|
|
clean::TypedefItem(ref t, _) => item_typedef(buf, cx, item, t),
|
|
clean::MacroItem(ref m) => item_macro(buf, cx, item, m),
|
|
clean::ProcMacroItem(ref m) => item_proc_macro(buf, cx, item, m),
|
|
clean::PrimitiveItem(_) => item_primitive(buf, cx, item),
|
|
clean::StaticItem(ref i) | clean::ForeignStaticItem(ref i) => item_static(buf, cx, item, i),
|
|
clean::ConstantItem(ref c) => item_constant(buf, cx, item, c),
|
|
clean::ForeignTypeItem => item_foreign_type(buf, cx, item),
|
|
clean::KeywordItem(_) => item_keyword(buf, cx, item),
|
|
clean::OpaqueTyItem(ref e, _) => item_opaque_ty(buf, cx, item, e),
|
|
clean::TraitAliasItem(ref ta) => item_trait_alias(buf, cx, item, ta),
|
|
_ => {
|
|
// We don't generate pages for any other type.
|
|
unreachable!();
|
|
}
|
|
}
|
|
}
|
|
|
|
fn item_path(ty: ItemType, name: &str) -> String {
|
|
match ty {
|
|
ItemType::Module => format!("{}index.html", ensure_trailing_slash(name)),
|
|
_ => format!("{}.{}.html", ty, name),
|
|
}
|
|
}
|
|
|
|
fn full_path(cx: &Context, item: &clean::Item) -> String {
|
|
let mut s = cx.current.join("::");
|
|
s.push_str("::");
|
|
s.push_str(item.name.as_ref().unwrap());
|
|
s
|
|
}
|
|
|
|
#[inline]
|
|
fn plain_summary_line(s: Option<&str>) -> String {
|
|
let s = s.unwrap_or("");
|
|
// This essentially gets the first paragraph of text in one line.
|
|
let mut line = s
|
|
.lines()
|
|
.skip_while(|line| line.chars().all(|c| c.is_whitespace()))
|
|
.take_while(|line| line.chars().any(|c| !c.is_whitespace()))
|
|
.fold(String::new(), |mut acc, line| {
|
|
acc.push_str(line);
|
|
acc.push(' ');
|
|
acc
|
|
});
|
|
// remove final whitespace
|
|
line.pop();
|
|
markdown::plain_summary_line(&line[..])
|
|
}
|
|
|
|
fn shorten(s: String) -> String {
|
|
if s.chars().count() > 60 {
|
|
let mut len = 0;
|
|
let mut ret = s
|
|
.split_whitespace()
|
|
.take_while(|p| {
|
|
// + 1 for the added character after the word.
|
|
len += p.chars().count() + 1;
|
|
len < 60
|
|
})
|
|
.collect::<Vec<_>>()
|
|
.join(" ");
|
|
ret.push('…');
|
|
ret
|
|
} else {
|
|
s
|
|
}
|
|
}
|
|
|
|
fn document(w: &mut Buffer, cx: &Context, item: &clean::Item) {
|
|
if let Some(ref name) = item.name {
|
|
info!("Documenting {}", name);
|
|
}
|
|
document_stability(w, cx, item, false);
|
|
document_full(w, item, cx, "", false);
|
|
}
|
|
|
|
/// Render md_text as markdown.
|
|
fn render_markdown(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
md_text: &str,
|
|
links: Vec<(String, String)>,
|
|
prefix: &str,
|
|
is_hidden: bool,
|
|
) {
|
|
let mut ids = cx.id_map.borrow_mut();
|
|
write!(
|
|
w,
|
|
"<div class='docblock{}'>{}{}</div>",
|
|
if is_hidden { " hidden" } else { "" },
|
|
prefix,
|
|
Markdown(
|
|
md_text,
|
|
&links,
|
|
&mut ids,
|
|
cx.shared.codes,
|
|
cx.shared.edition,
|
|
&cx.shared.playground
|
|
)
|
|
.to_string()
|
|
)
|
|
}
|
|
|
|
fn document_short(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
item: &clean::Item,
|
|
link: AssocItemLink<'_>,
|
|
prefix: &str,
|
|
is_hidden: bool,
|
|
) {
|
|
if let Some(s) = item.doc_value() {
|
|
let markdown = if s.contains('\n') {
|
|
format!(
|
|
"{} [Read more]({})",
|
|
&plain_summary_line(Some(s)),
|
|
naive_assoc_href(item, link)
|
|
)
|
|
} else {
|
|
plain_summary_line(Some(s))
|
|
};
|
|
render_markdown(w, cx, &markdown, item.links(), prefix, is_hidden);
|
|
} else if !prefix.is_empty() {
|
|
write!(
|
|
w,
|
|
"<div class='docblock{}'>{}</div>",
|
|
if is_hidden { " hidden" } else { "" },
|
|
prefix
|
|
);
|
|
}
|
|
}
|
|
|
|
fn document_full(w: &mut Buffer, item: &clean::Item, cx: &Context, prefix: &str, is_hidden: bool) {
|
|
if let Some(s) = cx.shared.maybe_collapsed_doc_value(item) {
|
|
debug!("Doc block: =====\n{}\n=====", s);
|
|
render_markdown(w, cx, &*s, item.links(), prefix, is_hidden);
|
|
} else if !prefix.is_empty() {
|
|
write!(
|
|
w,
|
|
"<div class='docblock{}'>{}</div>",
|
|
if is_hidden { " hidden" } else { "" },
|
|
prefix
|
|
);
|
|
}
|
|
}
|
|
|
|
fn document_stability(w: &mut Buffer, cx: &Context, item: &clean::Item, is_hidden: bool) {
|
|
let stabilities = short_stability(item, cx);
|
|
if !stabilities.is_empty() {
|
|
write!(w, "<div class='stability{}'>", if is_hidden { " hidden" } else { "" });
|
|
for stability in stabilities {
|
|
write!(w, "{}", stability);
|
|
}
|
|
write!(w, "</div>");
|
|
}
|
|
}
|
|
|
|
fn document_non_exhaustive_header(item: &clean::Item) -> &str {
|
|
if item.is_non_exhaustive() { " (Non-exhaustive)" } else { "" }
|
|
}
|
|
|
|
fn document_non_exhaustive(w: &mut Buffer, item: &clean::Item) {
|
|
if item.is_non_exhaustive() {
|
|
write!(w, "<div class='docblock non-exhaustive non-exhaustive-{}'>", {
|
|
if item.is_struct() {
|
|
"struct"
|
|
} else if item.is_enum() {
|
|
"enum"
|
|
} else if item.is_variant() {
|
|
"variant"
|
|
} else {
|
|
"type"
|
|
}
|
|
});
|
|
|
|
if item.is_struct() {
|
|
write!(
|
|
w,
|
|
"Non-exhaustive structs could have additional fields added in future. \
|
|
Therefore, non-exhaustive structs cannot be constructed in external crates \
|
|
using the traditional <code>Struct {{ .. }}</code> syntax; cannot be \
|
|
matched against without a wildcard <code>..</code>; and \
|
|
struct update syntax will not work."
|
|
);
|
|
} else if item.is_enum() {
|
|
write!(
|
|
w,
|
|
"Non-exhaustive enums could have additional variants added in future. \
|
|
Therefore, when matching against variants of non-exhaustive enums, an \
|
|
extra wildcard arm must be added to account for any future variants."
|
|
);
|
|
} else if item.is_variant() {
|
|
write!(
|
|
w,
|
|
"Non-exhaustive enum variants could have additional fields added in future. \
|
|
Therefore, non-exhaustive enum variants cannot be constructed in external \
|
|
crates and cannot be matched against."
|
|
);
|
|
} else {
|
|
write!(
|
|
w,
|
|
"This type will require a wildcard arm in any match statements or \
|
|
constructors."
|
|
);
|
|
}
|
|
|
|
write!(w, "</div>");
|
|
}
|
|
}
|
|
|
|
fn name_key(name: &str) -> (&str, u64, usize) {
|
|
let end = name.bytes().rposition(|b| b.is_ascii_digit()).map_or(name.len(), |i| i + 1);
|
|
|
|
// find number at end
|
|
let split = name[0..end].bytes().rposition(|b| !b.is_ascii_digit()).map_or(0, |i| i + 1);
|
|
|
|
// count leading zeroes
|
|
let after_zeroes =
|
|
name[split..end].bytes().position(|b| b != b'0').map_or(name.len(), |extra| split + extra);
|
|
|
|
// sort leading zeroes last
|
|
let num_zeroes = after_zeroes - split;
|
|
|
|
match name[split..end].parse() {
|
|
Ok(n) => (&name[..split], n, num_zeroes),
|
|
Err(_) => (name, 0, num_zeroes),
|
|
}
|
|
}
|
|
|
|
fn item_module(w: &mut Buffer, cx: &Context, item: &clean::Item, items: &[clean::Item]) {
|
|
document(w, cx, item);
|
|
|
|
let mut indices = (0..items.len()).filter(|i| !items[*i].is_stripped()).collect::<Vec<usize>>();
|
|
|
|
// the order of item types in the listing
|
|
fn reorder(ty: ItemType) -> u8 {
|
|
match ty {
|
|
ItemType::ExternCrate => 0,
|
|
ItemType::Import => 1,
|
|
ItemType::Primitive => 2,
|
|
ItemType::Module => 3,
|
|
ItemType::Macro => 4,
|
|
ItemType::Struct => 5,
|
|
ItemType::Enum => 6,
|
|
ItemType::Constant => 7,
|
|
ItemType::Static => 8,
|
|
ItemType::Trait => 9,
|
|
ItemType::Function => 10,
|
|
ItemType::Typedef => 12,
|
|
ItemType::Union => 13,
|
|
_ => 14 + ty as u8,
|
|
}
|
|
}
|
|
|
|
fn cmp(i1: &clean::Item, i2: &clean::Item, idx1: usize, idx2: usize) -> Ordering {
|
|
let ty1 = i1.type_();
|
|
let ty2 = i2.type_();
|
|
if ty1 != ty2 {
|
|
return (reorder(ty1), idx1).cmp(&(reorder(ty2), idx2));
|
|
}
|
|
let s1 = i1.stability.as_ref().map(|s| s.level);
|
|
let s2 = i2.stability.as_ref().map(|s| s.level);
|
|
match (s1, s2) {
|
|
(Some(stability::Unstable), Some(stability::Stable)) => return Ordering::Greater,
|
|
(Some(stability::Stable), Some(stability::Unstable)) => return Ordering::Less,
|
|
_ => {}
|
|
}
|
|
let lhs = i1.name.as_ref().map_or("", |s| &**s);
|
|
let rhs = i2.name.as_ref().map_or("", |s| &**s);
|
|
name_key(lhs).cmp(&name_key(rhs))
|
|
}
|
|
|
|
if cx.shared.sort_modules_alphabetically {
|
|
indices.sort_by(|&i1, &i2| cmp(&items[i1], &items[i2], i1, i2));
|
|
}
|
|
// This call is to remove re-export duplicates in cases such as:
|
|
//
|
|
// ```
|
|
// pub mod foo {
|
|
// pub mod bar {
|
|
// pub trait Double { fn foo(); }
|
|
// }
|
|
// }
|
|
//
|
|
// pub use foo::bar::*;
|
|
// pub use foo::*;
|
|
// ```
|
|
//
|
|
// `Double` will appear twice in the generated docs.
|
|
//
|
|
// FIXME: This code is quite ugly and could be improved. Small issue: DefId
|
|
// can be identical even if the elements are different (mostly in imports).
|
|
// So in case this is an import, we keep everything by adding a "unique id"
|
|
// (which is the position in the vector).
|
|
indices.dedup_by_key(|i| {
|
|
(
|
|
items[*i].def_id,
|
|
if items[*i].name.as_ref().is_some() { Some(full_path(cx, &items[*i])) } else { None },
|
|
items[*i].type_(),
|
|
if items[*i].is_import() { *i } else { 0 },
|
|
)
|
|
});
|
|
|
|
debug!("{:?}", indices);
|
|
let mut curty = None;
|
|
for &idx in &indices {
|
|
let myitem = &items[idx];
|
|
if myitem.is_stripped() {
|
|
continue;
|
|
}
|
|
|
|
let myty = Some(myitem.type_());
|
|
if curty == Some(ItemType::ExternCrate) && myty == Some(ItemType::Import) {
|
|
// Put `extern crate` and `use` re-exports in the same section.
|
|
curty = myty;
|
|
} else if myty != curty {
|
|
if curty.is_some() {
|
|
write!(w, "</table>");
|
|
}
|
|
curty = myty;
|
|
let (short, name) = item_ty_to_strs(&myty.unwrap());
|
|
write!(
|
|
w,
|
|
"<h2 id='{id}' class='section-header'>\
|
|
<a href=\"#{id}\">{name}</a></h2>\n<table>",
|
|
id = cx.derive_id(short.to_owned()),
|
|
name = name
|
|
);
|
|
}
|
|
|
|
match myitem.inner {
|
|
clean::ExternCrateItem(ref name, ref src) => {
|
|
use crate::html::format::anchor;
|
|
|
|
match *src {
|
|
Some(ref src) => write!(
|
|
w,
|
|
"<tr><td><code>{}extern crate {} as {};",
|
|
myitem.visibility.print_with_space(),
|
|
anchor(myitem.def_id, src),
|
|
name
|
|
),
|
|
None => write!(
|
|
w,
|
|
"<tr><td><code>{}extern crate {};",
|
|
myitem.visibility.print_with_space(),
|
|
anchor(myitem.def_id, name)
|
|
),
|
|
}
|
|
write!(w, "</code></td></tr>");
|
|
}
|
|
|
|
clean::ImportItem(ref import) => {
|
|
write!(
|
|
w,
|
|
"<tr><td><code>{}{}</code></td></tr>",
|
|
myitem.visibility.print_with_space(),
|
|
import.print()
|
|
);
|
|
}
|
|
|
|
_ => {
|
|
if myitem.name.is_none() {
|
|
continue;
|
|
}
|
|
|
|
let unsafety_flag = match myitem.inner {
|
|
clean::FunctionItem(ref func) | clean::ForeignFunctionItem(ref func)
|
|
if func.header.unsafety == hir::Unsafety::Unsafe =>
|
|
{
|
|
"<a title='unsafe function' href='#'><sup>⚠</sup></a>"
|
|
}
|
|
_ => "",
|
|
};
|
|
|
|
let stab = myitem.stability_class();
|
|
let add = if stab.is_some() { " " } else { "" };
|
|
|
|
let doc_value = myitem.doc_value().unwrap_or("");
|
|
write!(
|
|
w,
|
|
"\
|
|
<tr class='{stab}{add}module-item'>\
|
|
<td><a class=\"{class}\" href=\"{href}\" \
|
|
title='{title}'>{name}</a>{unsafety_flag}</td>\
|
|
<td class='docblock-short'>{stab_tags}{docs}</td>\
|
|
</tr>",
|
|
name = *myitem.name.as_ref().unwrap(),
|
|
stab_tags = stability_tags(myitem),
|
|
docs = MarkdownSummaryLine(doc_value, &myitem.links()).to_string(),
|
|
class = myitem.type_(),
|
|
add = add,
|
|
stab = stab.unwrap_or_else(|| String::new()),
|
|
unsafety_flag = unsafety_flag,
|
|
href = item_path(myitem.type_(), myitem.name.as_ref().unwrap()),
|
|
title = [full_path(cx, myitem), myitem.type_().to_string()]
|
|
.iter()
|
|
.filter_map(|s| if !s.is_empty() { Some(s.as_str()) } else { None })
|
|
.collect::<Vec<_>>()
|
|
.join(" "),
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
if curty.is_some() {
|
|
write!(w, "</table>");
|
|
}
|
|
}
|
|
|
|
/// Render the stability and deprecation tags that are displayed in the item's summary at the
|
|
/// module level.
|
|
fn stability_tags(item: &clean::Item) -> String {
|
|
let mut tags = String::new();
|
|
|
|
fn tag_html(class: &str, contents: &str) -> String {
|
|
format!(r#"<span class="stab {}">{}</span>"#, class, contents)
|
|
}
|
|
|
|
// The trailing space after each tag is to space it properly against the rest of the docs.
|
|
if item.deprecation().is_some() {
|
|
let mut message = "Deprecated";
|
|
if let Some(ref stab) = item.stability {
|
|
if let Some(ref depr) = stab.deprecation {
|
|
if let Some(ref since) = depr.since {
|
|
if !stability::deprecation_in_effect(&since) {
|
|
message = "Deprecation planned";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
tags += &tag_html("deprecated", message);
|
|
}
|
|
|
|
if let Some(stab) = item.stability.as_ref().filter(|s| s.level == stability::Unstable) {
|
|
if stab.feature.as_deref() == Some("rustc_private") {
|
|
tags += &tag_html("internal", "Internal");
|
|
} else {
|
|
tags += &tag_html("unstable", "Experimental");
|
|
}
|
|
}
|
|
|
|
if let Some(ref cfg) = item.attrs.cfg {
|
|
tags += &tag_html("portability", &cfg.render_short_html());
|
|
}
|
|
|
|
tags
|
|
}
|
|
|
|
/// Render the stability and/or deprecation warning that is displayed at the top of the item's
|
|
/// documentation.
|
|
fn short_stability(item: &clean::Item, cx: &Context) -> Vec<String> {
|
|
let mut stability = vec![];
|
|
let error_codes = cx.shared.codes;
|
|
|
|
if let Some(Deprecation { note, since }) = &item.deprecation() {
|
|
// We display deprecation messages for #[deprecated] and #[rustc_deprecated]
|
|
// but only display the future-deprecation messages for #[rustc_deprecated].
|
|
let mut message = if let Some(since) = since {
|
|
format!("Deprecated since {}", Escape(since))
|
|
} else {
|
|
String::from("Deprecated")
|
|
};
|
|
if let Some(ref stab) = item.stability {
|
|
if let Some(ref depr) = stab.deprecation {
|
|
if let Some(ref since) = depr.since {
|
|
if !stability::deprecation_in_effect(&since) {
|
|
message = format!("Deprecating in {}", Escape(&since));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if let Some(note) = note {
|
|
let mut ids = cx.id_map.borrow_mut();
|
|
let html = MarkdownHtml(
|
|
¬e,
|
|
&mut ids,
|
|
error_codes,
|
|
cx.shared.edition,
|
|
&cx.shared.playground,
|
|
);
|
|
message.push_str(&format!(": {}", html.to_string()));
|
|
}
|
|
stability.push(format!("<div class='stab deprecated'>{}</div>", message));
|
|
}
|
|
|
|
if let Some(stab) = item.stability.as_ref().filter(|stab| stab.level == stability::Unstable) {
|
|
let is_rustc_private = stab.feature.as_deref() == Some("rustc_private");
|
|
|
|
let mut message = if is_rustc_private {
|
|
"<span class='emoji'>⚙️</span> This is an internal compiler API."
|
|
} else {
|
|
"<span class='emoji'>🔬</span> This is a nightly-only experimental API."
|
|
}
|
|
.to_owned();
|
|
|
|
if let Some(feature) = stab.feature.as_deref() {
|
|
let mut feature = format!("<code>{}</code>", Escape(&feature));
|
|
if let (Some(url), Some(issue)) = (&cx.shared.issue_tracker_base_url, stab.issue) {
|
|
feature.push_str(&format!(
|
|
" <a href=\"{url}{issue}\">#{issue}</a>",
|
|
url = url,
|
|
issue = issue
|
|
));
|
|
}
|
|
|
|
message.push_str(&format!(" ({})", feature));
|
|
}
|
|
|
|
if let Some(unstable_reason) = &stab.unstable_reason {
|
|
// Provide a more informative message than the compiler help.
|
|
let unstable_reason = if is_rustc_private {
|
|
"This crate is being loaded from the sysroot, a permanently unstable location \
|
|
for private compiler dependencies. It is not intended for general use. Prefer \
|
|
using a public version of this crate from \
|
|
[crates.io](https://crates.io) via [`Cargo.toml`]\
|
|
(https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html)."
|
|
} else {
|
|
unstable_reason
|
|
};
|
|
|
|
let mut ids = cx.id_map.borrow_mut();
|
|
message = format!(
|
|
"<details><summary>{}</summary>{}</details>",
|
|
message,
|
|
MarkdownHtml(
|
|
&unstable_reason,
|
|
&mut ids,
|
|
error_codes,
|
|
cx.shared.edition,
|
|
&cx.shared.playground,
|
|
)
|
|
.to_string()
|
|
);
|
|
}
|
|
|
|
let class = if is_rustc_private { "internal" } else { "unstable" };
|
|
stability.push(format!("<div class='stab {}'>{}</div>", class, message));
|
|
}
|
|
|
|
if let Some(ref cfg) = item.attrs.cfg {
|
|
stability.push(format!("<div class='stab portability'>{}</div>", cfg.render_long_html()));
|
|
}
|
|
|
|
stability
|
|
}
|
|
|
|
fn item_constant(w: &mut Buffer, cx: &Context, it: &clean::Item, c: &clean::Constant) {
|
|
write!(w, "<pre class='rust const'>");
|
|
render_attributes(w, it, false);
|
|
|
|
write!(
|
|
w,
|
|
"{vis}const \
|
|
{name}: {typ}",
|
|
vis = it.visibility.print_with_space(),
|
|
name = it.name.as_ref().unwrap(),
|
|
typ = c.type_.print(),
|
|
);
|
|
|
|
if c.value.is_some() || c.is_literal {
|
|
write!(w, " = {expr};", expr = Escape(&c.expr));
|
|
} else {
|
|
write!(w, ";");
|
|
}
|
|
|
|
if let Some(value) = &c.value {
|
|
if !c.is_literal {
|
|
let value_lowercase = value.to_lowercase();
|
|
let expr_lowercase = c.expr.to_lowercase();
|
|
|
|
if value_lowercase != expr_lowercase
|
|
&& value_lowercase.trim_end_matches("i32") != expr_lowercase
|
|
{
|
|
write!(w, " // {value}", value = Escape(value));
|
|
}
|
|
}
|
|
}
|
|
|
|
write!(w, "</pre>");
|
|
document(w, cx, it)
|
|
}
|
|
|
|
fn item_static(w: &mut Buffer, cx: &Context, it: &clean::Item, s: &clean::Static) {
|
|
write!(w, "<pre class='rust static'>");
|
|
render_attributes(w, it, false);
|
|
write!(
|
|
w,
|
|
"{vis}static {mutability}\
|
|
{name}: {typ}</pre>",
|
|
vis = it.visibility.print_with_space(),
|
|
mutability = s.mutability.print_with_space(),
|
|
name = it.name.as_ref().unwrap(),
|
|
typ = s.type_.print()
|
|
);
|
|
document(w, cx, it)
|
|
}
|
|
|
|
fn item_function(w: &mut Buffer, cx: &Context, it: &clean::Item, f: &clean::Function) {
|
|
let header_len = format!(
|
|
"{}{}{}{}{:#}fn {}{:#}",
|
|
it.visibility.print_with_space(),
|
|
f.header.constness.print_with_space(),
|
|
f.header.asyncness.print_with_space(),
|
|
f.header.unsafety.print_with_space(),
|
|
print_abi_with_space(f.header.abi),
|
|
it.name.as_ref().unwrap(),
|
|
f.generics.print()
|
|
)
|
|
.len();
|
|
write!(w, "{}<pre class='rust fn'>", render_spotlight_traits(it));
|
|
render_attributes(w, it, false);
|
|
write!(
|
|
w,
|
|
"{vis}{constness}{asyncness}{unsafety}{abi}fn \
|
|
{name}{generics}{decl}{where_clause}</pre>",
|
|
vis = it.visibility.print_with_space(),
|
|
constness = f.header.constness.print_with_space(),
|
|
asyncness = f.header.asyncness.print_with_space(),
|
|
unsafety = f.header.unsafety.print_with_space(),
|
|
abi = print_abi_with_space(f.header.abi),
|
|
name = it.name.as_ref().unwrap(),
|
|
generics = f.generics.print(),
|
|
where_clause = WhereClause { gens: &f.generics, indent: 0, end_newline: true },
|
|
decl = Function { decl: &f.decl, header_len, indent: 0, asyncness: f.header.asyncness }
|
|
.print()
|
|
);
|
|
document(w, cx, it)
|
|
}
|
|
|
|
fn render_implementor(
|
|
cx: &Context,
|
|
implementor: &Impl,
|
|
w: &mut Buffer,
|
|
implementor_dups: &FxHashMap<&str, (DefId, bool)>,
|
|
aliases: &[String],
|
|
) {
|
|
// If there's already another implementor that has the same abbridged name, use the
|
|
// full path, for example in `std::iter::ExactSizeIterator`
|
|
let use_absolute = match implementor.inner_impl().for_ {
|
|
clean::ResolvedPath { ref path, is_generic: false, .. }
|
|
| clean::BorrowedRef {
|
|
type_: box clean::ResolvedPath { ref path, is_generic: false, .. },
|
|
..
|
|
} => implementor_dups[path.last_name()].1,
|
|
_ => false,
|
|
};
|
|
render_impl(
|
|
w,
|
|
cx,
|
|
implementor,
|
|
AssocItemLink::Anchor(None),
|
|
RenderMode::Normal,
|
|
implementor.impl_item.stable_since(),
|
|
false,
|
|
Some(use_absolute),
|
|
false,
|
|
false,
|
|
aliases,
|
|
);
|
|
}
|
|
|
|
fn render_impls(cx: &Context, w: &mut Buffer, traits: &[&&Impl], containing_item: &clean::Item) {
|
|
let mut impls = traits
|
|
.iter()
|
|
.map(|i| {
|
|
let did = i.trait_did().unwrap();
|
|
let assoc_link = AssocItemLink::GotoSource(did, &i.inner_impl().provided_trait_methods);
|
|
let mut buffer = if w.is_for_html() { Buffer::html() } else { Buffer::new() };
|
|
render_impl(
|
|
&mut buffer,
|
|
cx,
|
|
i,
|
|
assoc_link,
|
|
RenderMode::Normal,
|
|
containing_item.stable_since(),
|
|
true,
|
|
None,
|
|
false,
|
|
true,
|
|
&[],
|
|
);
|
|
buffer.into_inner()
|
|
})
|
|
.collect::<Vec<_>>();
|
|
impls.sort();
|
|
w.write_str(&impls.join(""));
|
|
}
|
|
|
|
fn bounds(t_bounds: &[clean::GenericBound], trait_alias: bool) -> String {
|
|
let mut bounds = String::new();
|
|
if !t_bounds.is_empty() {
|
|
if !trait_alias {
|
|
bounds.push_str(": ");
|
|
}
|
|
for (i, p) in t_bounds.iter().enumerate() {
|
|
if i > 0 {
|
|
bounds.push_str(" + ");
|
|
}
|
|
bounds.push_str(&p.print().to_string());
|
|
}
|
|
}
|
|
bounds
|
|
}
|
|
|
|
fn compare_impl<'a, 'b>(lhs: &'a &&Impl, rhs: &'b &&Impl) -> Ordering {
|
|
let lhs = format!("{}", lhs.inner_impl().print());
|
|
let rhs = format!("{}", rhs.inner_impl().print());
|
|
|
|
// lhs and rhs are formatted as HTML, which may be unnecessary
|
|
name_key(&lhs).cmp(&name_key(&rhs))
|
|
}
|
|
|
|
fn item_trait(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Trait) {
|
|
let bounds = bounds(&t.bounds, false);
|
|
let types = t.items.iter().filter(|m| m.is_associated_type()).collect::<Vec<_>>();
|
|
let consts = t.items.iter().filter(|m| m.is_associated_const()).collect::<Vec<_>>();
|
|
let required = t.items.iter().filter(|m| m.is_ty_method()).collect::<Vec<_>>();
|
|
let provided = t.items.iter().filter(|m| m.is_method()).collect::<Vec<_>>();
|
|
|
|
// Output the trait definition
|
|
wrap_into_docblock(w, |w| {
|
|
write!(w, "<pre class='rust trait'>");
|
|
render_attributes(w, it, true);
|
|
write!(
|
|
w,
|
|
"{}{}{}trait {}{}{}",
|
|
it.visibility.print_with_space(),
|
|
t.unsafety.print_with_space(),
|
|
if t.is_auto { "auto " } else { "" },
|
|
it.name.as_ref().unwrap(),
|
|
t.generics.print(),
|
|
bounds
|
|
);
|
|
|
|
if !t.generics.where_predicates.is_empty() {
|
|
write!(w, "{}", WhereClause { gens: &t.generics, indent: 0, end_newline: true });
|
|
} else {
|
|
write!(w, " ");
|
|
}
|
|
|
|
if t.items.is_empty() {
|
|
write!(w, "{{ }}");
|
|
} else {
|
|
// FIXME: we should be using a derived_id for the Anchors here
|
|
write!(w, "{{\n");
|
|
for t in &types {
|
|
render_assoc_item(w, t, AssocItemLink::Anchor(None), ItemType::Trait);
|
|
write!(w, ";\n");
|
|
}
|
|
if !types.is_empty() && !consts.is_empty() {
|
|
w.write_str("\n");
|
|
}
|
|
for t in &consts {
|
|
render_assoc_item(w, t, AssocItemLink::Anchor(None), ItemType::Trait);
|
|
write!(w, ";\n");
|
|
}
|
|
if !consts.is_empty() && !required.is_empty() {
|
|
w.write_str("\n");
|
|
}
|
|
for (pos, m) in required.iter().enumerate() {
|
|
render_assoc_item(w, m, AssocItemLink::Anchor(None), ItemType::Trait);
|
|
write!(w, ";\n");
|
|
|
|
if pos < required.len() - 1 {
|
|
write!(w, "<div class='item-spacer'></div>");
|
|
}
|
|
}
|
|
if !required.is_empty() && !provided.is_empty() {
|
|
w.write_str("\n");
|
|
}
|
|
for (pos, m) in provided.iter().enumerate() {
|
|
render_assoc_item(w, m, AssocItemLink::Anchor(None), ItemType::Trait);
|
|
match m.inner {
|
|
clean::MethodItem(ref inner) if !inner.generics.where_predicates.is_empty() => {
|
|
write!(w, ",\n {{ ... }}\n");
|
|
}
|
|
_ => {
|
|
write!(w, " {{ ... }}\n");
|
|
}
|
|
}
|
|
if pos < provided.len() - 1 {
|
|
write!(w, "<div class='item-spacer'></div>");
|
|
}
|
|
}
|
|
write!(w, "}}");
|
|
}
|
|
write!(w, "</pre>")
|
|
});
|
|
|
|
// Trait documentation
|
|
document(w, cx, it);
|
|
|
|
fn write_small_section_header(w: &mut Buffer, id: &str, title: &str, extra_content: &str) {
|
|
write!(
|
|
w,
|
|
"
|
|
<h2 id='{0}' class='small-section-header'>\
|
|
{1}<a href='#{0}' class='anchor'></a>\
|
|
</h2>{2}",
|
|
id, title, extra_content
|
|
)
|
|
}
|
|
|
|
fn write_loading_content(w: &mut Buffer, extra_content: &str) {
|
|
write!(w, "{}<span class='loading-content'>Loading content...</span>", extra_content)
|
|
}
|
|
|
|
fn trait_item(w: &mut Buffer, cx: &Context, m: &clean::Item, t: &clean::Item) {
|
|
let name = m.name.as_ref().unwrap();
|
|
let item_type = m.type_();
|
|
let id = cx.derive_id(format!("{}.{}", item_type, name));
|
|
let ns_id = cx.derive_id(format!("{}.{}", name, item_type.name_space()));
|
|
write!(
|
|
w,
|
|
"<h3 id='{id}' class='method'>{extra}<code id='{ns_id}'>",
|
|
extra = render_spotlight_traits(m),
|
|
id = id,
|
|
ns_id = ns_id
|
|
);
|
|
render_assoc_item(w, m, AssocItemLink::Anchor(Some(&id)), ItemType::Impl);
|
|
write!(w, "</code>");
|
|
render_stability_since(w, m, t);
|
|
write!(w, "</h3>");
|
|
document(w, cx, m);
|
|
}
|
|
|
|
if !types.is_empty() {
|
|
write_small_section_header(
|
|
w,
|
|
"associated-types",
|
|
"Associated Types",
|
|
"<div class='methods'>",
|
|
);
|
|
for t in &types {
|
|
trait_item(w, cx, *t, it);
|
|
}
|
|
write_loading_content(w, "</div>");
|
|
}
|
|
|
|
if !consts.is_empty() {
|
|
write_small_section_header(
|
|
w,
|
|
"associated-const",
|
|
"Associated Constants",
|
|
"<div class='methods'>",
|
|
);
|
|
for t in &consts {
|
|
trait_item(w, cx, *t, it);
|
|
}
|
|
write_loading_content(w, "</div>");
|
|
}
|
|
|
|
// Output the documentation for each function individually
|
|
if !required.is_empty() {
|
|
write_small_section_header(
|
|
w,
|
|
"required-methods",
|
|
"Required methods",
|
|
"<div class='methods'>",
|
|
);
|
|
for m in &required {
|
|
trait_item(w, cx, *m, it);
|
|
}
|
|
write_loading_content(w, "</div>");
|
|
}
|
|
if !provided.is_empty() {
|
|
write_small_section_header(
|
|
w,
|
|
"provided-methods",
|
|
"Provided methods",
|
|
"<div class='methods'>",
|
|
);
|
|
for m in &provided {
|
|
trait_item(w, cx, *m, it);
|
|
}
|
|
write_loading_content(w, "</div>");
|
|
}
|
|
|
|
// If there are methods directly on this trait object, render them here.
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All);
|
|
|
|
if let Some(implementors) = cx.cache.implementors.get(&it.def_id) {
|
|
// The DefId is for the first Type found with that name. The bool is
|
|
// if any Types with the same name but different DefId have been found.
|
|
let mut implementor_dups: FxHashMap<&str, (DefId, bool)> = FxHashMap::default();
|
|
for implementor in implementors {
|
|
match implementor.inner_impl().for_ {
|
|
clean::ResolvedPath { ref path, did, is_generic: false, .. }
|
|
| clean::BorrowedRef {
|
|
type_: box clean::ResolvedPath { ref path, did, is_generic: false, .. },
|
|
..
|
|
} => {
|
|
let &mut (prev_did, ref mut has_duplicates) =
|
|
implementor_dups.entry(path.last_name()).or_insert((did, false));
|
|
if prev_did != did {
|
|
*has_duplicates = true;
|
|
}
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
let (local, foreign) = implementors.iter().partition::<Vec<_>, _>(|i| {
|
|
i.inner_impl().for_.def_id().map_or(true, |d| cx.cache.paths.contains_key(&d))
|
|
});
|
|
|
|
let (mut synthetic, mut concrete): (Vec<&&Impl>, Vec<&&Impl>) =
|
|
local.iter().partition(|i| i.inner_impl().synthetic);
|
|
|
|
synthetic.sort_by(compare_impl);
|
|
concrete.sort_by(compare_impl);
|
|
|
|
if !foreign.is_empty() {
|
|
write_small_section_header(w, "foreign-impls", "Implementations on Foreign Types", "");
|
|
|
|
for implementor in foreign {
|
|
let assoc_link = AssocItemLink::GotoSource(
|
|
implementor.impl_item.def_id,
|
|
&implementor.inner_impl().provided_trait_methods,
|
|
);
|
|
render_impl(
|
|
w,
|
|
cx,
|
|
&implementor,
|
|
assoc_link,
|
|
RenderMode::Normal,
|
|
implementor.impl_item.stable_since(),
|
|
false,
|
|
None,
|
|
true,
|
|
false,
|
|
&[],
|
|
);
|
|
}
|
|
write_loading_content(w, "");
|
|
}
|
|
|
|
write_small_section_header(
|
|
w,
|
|
"implementors",
|
|
"Implementors",
|
|
"<div class='item-list' id='implementors-list'>",
|
|
);
|
|
for implementor in concrete {
|
|
render_implementor(cx, implementor, w, &implementor_dups, &[]);
|
|
}
|
|
write_loading_content(w, "</div>");
|
|
|
|
if t.auto {
|
|
write_small_section_header(
|
|
w,
|
|
"synthetic-implementors",
|
|
"Auto implementors",
|
|
"<div class='item-list' id='synthetic-implementors-list'>",
|
|
);
|
|
for implementor in synthetic {
|
|
render_implementor(
|
|
cx,
|
|
implementor,
|
|
w,
|
|
&implementor_dups,
|
|
&collect_paths_for_type(implementor.inner_impl().for_.clone()),
|
|
);
|
|
}
|
|
write_loading_content(w, "</div>");
|
|
}
|
|
} else {
|
|
// even without any implementations to write in, we still want the heading and list, so the
|
|
// implementors javascript file pulled in below has somewhere to write the impls into
|
|
write_small_section_header(
|
|
w,
|
|
"implementors",
|
|
"Implementors",
|
|
"<div class='item-list' id='implementors-list'>",
|
|
);
|
|
write_loading_content(w, "</div>");
|
|
|
|
if t.auto {
|
|
write_small_section_header(
|
|
w,
|
|
"synthetic-implementors",
|
|
"Auto implementors",
|
|
"<div class='item-list' id='synthetic-implementors-list'>",
|
|
);
|
|
write_loading_content(w, "</div>");
|
|
}
|
|
}
|
|
|
|
write!(
|
|
w,
|
|
"<script type=\"text/javascript\" \
|
|
src=\"{root_path}/implementors/{path}/{ty}.{name}.js\" async>\
|
|
</script>",
|
|
root_path = vec![".."; cx.current.len()].join("/"),
|
|
path = if it.def_id.is_local() {
|
|
cx.current.join("/")
|
|
} else {
|
|
let (ref path, _) = cx.cache.external_paths[&it.def_id];
|
|
path[..path.len() - 1].join("/")
|
|
},
|
|
ty = it.type_(),
|
|
name = *it.name.as_ref().unwrap()
|
|
);
|
|
}
|
|
|
|
fn naive_assoc_href(it: &clean::Item, link: AssocItemLink<'_>) -> String {
|
|
use crate::html::item_type::ItemType::*;
|
|
|
|
let name = it.name.as_ref().unwrap();
|
|
let ty = match it.type_() {
|
|
Typedef | AssocType => AssocType,
|
|
s @ _ => s,
|
|
};
|
|
|
|
let anchor = format!("#{}.{}", ty, name);
|
|
match link {
|
|
AssocItemLink::Anchor(Some(ref id)) => format!("#{}", id),
|
|
AssocItemLink::Anchor(None) => anchor,
|
|
AssocItemLink::GotoSource(did, _) => {
|
|
href(did).map(|p| format!("{}{}", p.0, anchor)).unwrap_or(anchor)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn assoc_const(
|
|
w: &mut Buffer,
|
|
it: &clean::Item,
|
|
ty: &clean::Type,
|
|
_default: Option<&String>,
|
|
link: AssocItemLink<'_>,
|
|
extra: &str,
|
|
) {
|
|
write!(
|
|
w,
|
|
"{}{}const <a href='{}' class=\"constant\"><b>{}</b></a>: {}",
|
|
extra,
|
|
it.visibility.print_with_space(),
|
|
naive_assoc_href(it, link),
|
|
it.name.as_ref().unwrap(),
|
|
ty.print()
|
|
);
|
|
}
|
|
|
|
fn assoc_type(
|
|
w: &mut Buffer,
|
|
it: &clean::Item,
|
|
bounds: &[clean::GenericBound],
|
|
default: Option<&clean::Type>,
|
|
link: AssocItemLink<'_>,
|
|
extra: &str,
|
|
) {
|
|
write!(
|
|
w,
|
|
"{}type <a href='{}' class=\"type\">{}</a>",
|
|
extra,
|
|
naive_assoc_href(it, link),
|
|
it.name.as_ref().unwrap()
|
|
);
|
|
if !bounds.is_empty() {
|
|
write!(w, ": {}", print_generic_bounds(bounds))
|
|
}
|
|
if let Some(default) = default {
|
|
write!(w, " = {}", default.print())
|
|
}
|
|
}
|
|
|
|
fn render_stability_since_raw(w: &mut Buffer, ver: Option<&str>, containing_ver: Option<&str>) {
|
|
if let Some(v) = ver {
|
|
if containing_ver != ver && v.len() > 0 {
|
|
write!(w, "<span class='since' title='Stable since Rust version {0}'>{0}</span>", v)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn render_stability_since(w: &mut Buffer, item: &clean::Item, containing_item: &clean::Item) {
|
|
render_stability_since_raw(w, item.stable_since(), containing_item.stable_since())
|
|
}
|
|
|
|
fn render_assoc_item(
|
|
w: &mut Buffer,
|
|
item: &clean::Item,
|
|
link: AssocItemLink<'_>,
|
|
parent: ItemType,
|
|
) {
|
|
fn method(
|
|
w: &mut Buffer,
|
|
meth: &clean::Item,
|
|
header: hir::FnHeader,
|
|
g: &clean::Generics,
|
|
d: &clean::FnDecl,
|
|
link: AssocItemLink<'_>,
|
|
parent: ItemType,
|
|
) {
|
|
let name = meth.name.as_ref().unwrap();
|
|
let anchor = format!("#{}.{}", meth.type_(), name);
|
|
let href = match link {
|
|
AssocItemLink::Anchor(Some(ref id)) => format!("#{}", id),
|
|
AssocItemLink::Anchor(None) => anchor,
|
|
AssocItemLink::GotoSource(did, provided_methods) => {
|
|
// We're creating a link from an impl-item to the corresponding
|
|
// trait-item and need to map the anchored type accordingly.
|
|
let ty = if provided_methods.contains(name) {
|
|
ItemType::Method
|
|
} else {
|
|
ItemType::TyMethod
|
|
};
|
|
|
|
href(did).map(|p| format!("{}#{}.{}", p.0, ty, name)).unwrap_or(anchor)
|
|
}
|
|
};
|
|
let mut header_len = format!(
|
|
"{}{}{}{}{}{:#}fn {}{:#}",
|
|
meth.visibility.print_with_space(),
|
|
header.constness.print_with_space(),
|
|
header.asyncness.print_with_space(),
|
|
header.unsafety.print_with_space(),
|
|
print_default_space(meth.is_default()),
|
|
print_abi_with_space(header.abi),
|
|
name,
|
|
g.print()
|
|
)
|
|
.len();
|
|
let (indent, end_newline) = if parent == ItemType::Trait {
|
|
header_len += 4;
|
|
(4, false)
|
|
} else {
|
|
(0, true)
|
|
};
|
|
render_attributes(w, meth, false);
|
|
write!(
|
|
w,
|
|
"{}{}{}{}{}{}{}fn <a href='{href}' class='fnname'>{name}</a>\
|
|
{generics}{decl}{where_clause}",
|
|
if parent == ItemType::Trait { " " } else { "" },
|
|
meth.visibility.print_with_space(),
|
|
header.constness.print_with_space(),
|
|
header.asyncness.print_with_space(),
|
|
header.unsafety.print_with_space(),
|
|
print_default_space(meth.is_default()),
|
|
print_abi_with_space(header.abi),
|
|
href = href,
|
|
name = name,
|
|
generics = g.print(),
|
|
decl = Function { decl: d, header_len, indent, asyncness: header.asyncness }.print(),
|
|
where_clause = WhereClause { gens: g, indent, end_newline }
|
|
)
|
|
}
|
|
match item.inner {
|
|
clean::StrippedItem(..) => {}
|
|
clean::TyMethodItem(ref m) => method(w, item, m.header, &m.generics, &m.decl, link, parent),
|
|
clean::MethodItem(ref m) => method(w, item, m.header, &m.generics, &m.decl, link, parent),
|
|
clean::AssocConstItem(ref ty, ref default) => assoc_const(
|
|
w,
|
|
item,
|
|
ty,
|
|
default.as_ref(),
|
|
link,
|
|
if parent == ItemType::Trait { " " } else { "" },
|
|
),
|
|
clean::AssocTypeItem(ref bounds, ref default) => assoc_type(
|
|
w,
|
|
item,
|
|
bounds,
|
|
default.as_ref(),
|
|
link,
|
|
if parent == ItemType::Trait { " " } else { "" },
|
|
),
|
|
_ => panic!("render_assoc_item called on non-associated-item"),
|
|
}
|
|
}
|
|
|
|
fn item_struct(w: &mut Buffer, cx: &Context, it: &clean::Item, s: &clean::Struct) {
|
|
wrap_into_docblock(w, |w| {
|
|
write!(w, "<pre class='rust struct'>");
|
|
render_attributes(w, it, true);
|
|
render_struct(w, it, Some(&s.generics), s.struct_type, &s.fields, "", true);
|
|
write!(w, "</pre>")
|
|
});
|
|
|
|
document(w, cx, it);
|
|
let mut fields = s
|
|
.fields
|
|
.iter()
|
|
.filter_map(|f| match f.inner {
|
|
clean::StructFieldItem(ref ty) => Some((f, ty)),
|
|
_ => None,
|
|
})
|
|
.peekable();
|
|
if let doctree::Plain = s.struct_type {
|
|
if fields.peek().is_some() {
|
|
write!(
|
|
w,
|
|
"<h2 id='fields' class='fields small-section-header'>
|
|
Fields{}<a href='#fields' class='anchor'></a></h2>",
|
|
document_non_exhaustive_header(it)
|
|
);
|
|
document_non_exhaustive(w, it);
|
|
for (field, ty) in fields {
|
|
let id = cx.derive_id(format!(
|
|
"{}.{}",
|
|
ItemType::StructField,
|
|
field.name.as_ref().unwrap()
|
|
));
|
|
let ns_id = cx.derive_id(format!(
|
|
"{}.{}",
|
|
field.name.as_ref().unwrap(),
|
|
ItemType::StructField.name_space()
|
|
));
|
|
write!(
|
|
w,
|
|
"<span id=\"{id}\" class=\"{item_type} small-section-header\">\
|
|
<a href=\"#{id}\" class=\"anchor field\"></a>\
|
|
<code id=\"{ns_id}\">{name}: {ty}</code>\
|
|
</span>",
|
|
item_type = ItemType::StructField,
|
|
id = id,
|
|
ns_id = ns_id,
|
|
name = field.name.as_ref().unwrap(),
|
|
ty = ty.print()
|
|
);
|
|
document(w, cx, field);
|
|
}
|
|
}
|
|
}
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn item_union(w: &mut Buffer, cx: &Context, it: &clean::Item, s: &clean::Union) {
|
|
wrap_into_docblock(w, |w| {
|
|
write!(w, "<pre class='rust union'>");
|
|
render_attributes(w, it, true);
|
|
render_union(w, it, Some(&s.generics), &s.fields, "", true);
|
|
write!(w, "</pre>")
|
|
});
|
|
|
|
document(w, cx, it);
|
|
let mut fields = s
|
|
.fields
|
|
.iter()
|
|
.filter_map(|f| match f.inner {
|
|
clean::StructFieldItem(ref ty) => Some((f, ty)),
|
|
_ => None,
|
|
})
|
|
.peekable();
|
|
if fields.peek().is_some() {
|
|
write!(
|
|
w,
|
|
"<h2 id='fields' class='fields small-section-header'>
|
|
Fields<a href='#fields' class='anchor'></a></h2>"
|
|
);
|
|
for (field, ty) in fields {
|
|
let name = field.name.as_ref().expect("union field name");
|
|
let id = format!("{}.{}", ItemType::StructField, name);
|
|
write!(
|
|
w,
|
|
"<span id=\"{id}\" class=\"{shortty} small-section-header\">\
|
|
<a href=\"#{id}\" class=\"anchor field\"></a>\
|
|
<code>{name}: {ty}</code>\
|
|
</span>",
|
|
id = id,
|
|
name = name,
|
|
shortty = ItemType::StructField,
|
|
ty = ty.print()
|
|
);
|
|
if let Some(stability_class) = field.stability_class() {
|
|
write!(w, "<span class='stab {stab}'></span>", stab = stability_class);
|
|
}
|
|
document(w, cx, field);
|
|
}
|
|
}
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn item_enum(w: &mut Buffer, cx: &Context, it: &clean::Item, e: &clean::Enum) {
|
|
wrap_into_docblock(w, |w| {
|
|
write!(w, "<pre class='rust enum'>");
|
|
render_attributes(w, it, true);
|
|
write!(
|
|
w,
|
|
"{}enum {}{}{}",
|
|
it.visibility.print_with_space(),
|
|
it.name.as_ref().unwrap(),
|
|
e.generics.print(),
|
|
WhereClause { gens: &e.generics, indent: 0, end_newline: true }
|
|
);
|
|
if e.variants.is_empty() && !e.variants_stripped {
|
|
write!(w, " {{}}");
|
|
} else {
|
|
write!(w, " {{\n");
|
|
for v in &e.variants {
|
|
write!(w, " ");
|
|
let name = v.name.as_ref().unwrap();
|
|
match v.inner {
|
|
clean::VariantItem(ref var) => match var.kind {
|
|
clean::VariantKind::CLike => write!(w, "{}", name),
|
|
clean::VariantKind::Tuple(ref tys) => {
|
|
write!(w, "{}(", name);
|
|
for (i, ty) in tys.iter().enumerate() {
|
|
if i > 0 {
|
|
write!(w, ", ")
|
|
}
|
|
write!(w, "{}", ty.print());
|
|
}
|
|
write!(w, ")");
|
|
}
|
|
clean::VariantKind::Struct(ref s) => {
|
|
render_struct(w, v, None, s.struct_type, &s.fields, " ", false);
|
|
}
|
|
},
|
|
_ => unreachable!(),
|
|
}
|
|
write!(w, ",\n");
|
|
}
|
|
|
|
if e.variants_stripped {
|
|
write!(w, " // some variants omitted\n");
|
|
}
|
|
write!(w, "}}");
|
|
}
|
|
write!(w, "</pre>")
|
|
});
|
|
|
|
document(w, cx, it);
|
|
if !e.variants.is_empty() {
|
|
write!(
|
|
w,
|
|
"<h2 id='variants' class='variants small-section-header'>
|
|
Variants{}<a href='#variants' class='anchor'></a></h2>\n",
|
|
document_non_exhaustive_header(it)
|
|
);
|
|
document_non_exhaustive(w, it);
|
|
for variant in &e.variants {
|
|
let id =
|
|
cx.derive_id(format!("{}.{}", ItemType::Variant, variant.name.as_ref().unwrap()));
|
|
let ns_id = cx.derive_id(format!(
|
|
"{}.{}",
|
|
variant.name.as_ref().unwrap(),
|
|
ItemType::Variant.name_space()
|
|
));
|
|
write!(
|
|
w,
|
|
"<div id=\"{id}\" class=\"variant small-section-header\">\
|
|
<a href=\"#{id}\" class=\"anchor field\"></a>\
|
|
<code id='{ns_id}'>{name}",
|
|
id = id,
|
|
ns_id = ns_id,
|
|
name = variant.name.as_ref().unwrap()
|
|
);
|
|
if let clean::VariantItem(ref var) = variant.inner {
|
|
if let clean::VariantKind::Tuple(ref tys) = var.kind {
|
|
write!(w, "(");
|
|
for (i, ty) in tys.iter().enumerate() {
|
|
if i > 0 {
|
|
write!(w, ", ");
|
|
}
|
|
write!(w, "{}", ty.print());
|
|
}
|
|
write!(w, ")");
|
|
}
|
|
}
|
|
write!(w, "</code></div>");
|
|
document(w, cx, variant);
|
|
document_non_exhaustive(w, variant);
|
|
|
|
use crate::clean::{Variant, VariantKind};
|
|
if let clean::VariantItem(Variant { kind: VariantKind::Struct(ref s) }) = variant.inner
|
|
{
|
|
let variant_id = cx.derive_id(format!(
|
|
"{}.{}.fields",
|
|
ItemType::Variant,
|
|
variant.name.as_ref().unwrap()
|
|
));
|
|
write!(w, "<div class='autohide sub-variant' id='{id}'>", id = variant_id);
|
|
write!(
|
|
w,
|
|
"<h3>Fields of <b>{name}</b></h3><div>",
|
|
name = variant.name.as_ref().unwrap()
|
|
);
|
|
for field in &s.fields {
|
|
use crate::clean::StructFieldItem;
|
|
if let StructFieldItem(ref ty) = field.inner {
|
|
let id = cx.derive_id(format!(
|
|
"variant.{}.field.{}",
|
|
variant.name.as_ref().unwrap(),
|
|
field.name.as_ref().unwrap()
|
|
));
|
|
let ns_id = cx.derive_id(format!(
|
|
"{}.{}.{}.{}",
|
|
variant.name.as_ref().unwrap(),
|
|
ItemType::Variant.name_space(),
|
|
field.name.as_ref().unwrap(),
|
|
ItemType::StructField.name_space()
|
|
));
|
|
write!(
|
|
w,
|
|
"<span id=\"{id}\" class=\"variant small-section-header\">\
|
|
<a href=\"#{id}\" class=\"anchor field\"></a>\
|
|
<code id='{ns_id}'>{f}: {t}\
|
|
</code></span>",
|
|
id = id,
|
|
ns_id = ns_id,
|
|
f = field.name.as_ref().unwrap(),
|
|
t = ty.print()
|
|
);
|
|
document(w, cx, field);
|
|
}
|
|
}
|
|
write!(w, "</div></div>");
|
|
}
|
|
render_stability_since(w, variant, it);
|
|
}
|
|
}
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn render_attribute(attr: &ast::MetaItem) -> Option<String> {
|
|
let path = pprust::path_to_string(&attr.path);
|
|
|
|
if attr.is_word() {
|
|
Some(path)
|
|
} else if let Some(v) = attr.value_str() {
|
|
Some(format!("{} = {:?}", path, v))
|
|
} else if let Some(values) = attr.meta_item_list() {
|
|
let display: Vec<_> = values
|
|
.iter()
|
|
.filter_map(|attr| attr.meta_item().and_then(|mi| render_attribute(mi)))
|
|
.collect();
|
|
|
|
if display.len() > 0 { Some(format!("{}({})", path, display.join(", "))) } else { None }
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
|
|
const ATTRIBUTE_WHITELIST: &'static [Symbol] = &[
|
|
sym::export_name,
|
|
sym::lang,
|
|
sym::link_section,
|
|
sym::must_use,
|
|
sym::no_mangle,
|
|
sym::repr,
|
|
sym::non_exhaustive,
|
|
];
|
|
|
|
// The `top` parameter is used when generating the item declaration to ensure it doesn't have a
|
|
// left padding. For example:
|
|
//
|
|
// #[foo] <----- "top" attribute
|
|
// struct Foo {
|
|
// #[bar] <---- not "top" attribute
|
|
// bar: usize,
|
|
// }
|
|
fn render_attributes(w: &mut Buffer, it: &clean::Item, top: bool) {
|
|
let mut attrs = String::new();
|
|
|
|
for attr in &it.attrs.other_attrs {
|
|
if !ATTRIBUTE_WHITELIST.contains(&attr.name_or_empty()) {
|
|
continue;
|
|
}
|
|
if let Some(s) = render_attribute(&attr.meta().unwrap()) {
|
|
attrs.push_str(&format!("#[{}]\n", s));
|
|
}
|
|
}
|
|
if attrs.len() > 0 {
|
|
write!(
|
|
w,
|
|
"<span class=\"docblock attributes{}\">{}</span>",
|
|
if top { " top-attr" } else { "" },
|
|
&attrs
|
|
);
|
|
}
|
|
}
|
|
|
|
fn render_struct(
|
|
w: &mut Buffer,
|
|
it: &clean::Item,
|
|
g: Option<&clean::Generics>,
|
|
ty: doctree::StructType,
|
|
fields: &[clean::Item],
|
|
tab: &str,
|
|
structhead: bool,
|
|
) {
|
|
write!(
|
|
w,
|
|
"{}{}{}",
|
|
it.visibility.print_with_space(),
|
|
if structhead { "struct " } else { "" },
|
|
it.name.as_ref().unwrap()
|
|
);
|
|
if let Some(g) = g {
|
|
write!(w, "{}", g.print())
|
|
}
|
|
match ty {
|
|
doctree::Plain => {
|
|
if let Some(g) = g {
|
|
write!(w, "{}", WhereClause { gens: g, indent: 0, end_newline: true })
|
|
}
|
|
let mut has_visible_fields = false;
|
|
write!(w, " {{");
|
|
for field in fields {
|
|
if let clean::StructFieldItem(ref ty) = field.inner {
|
|
write!(
|
|
w,
|
|
"\n{} {}{}: {},",
|
|
tab,
|
|
field.visibility.print_with_space(),
|
|
field.name.as_ref().unwrap(),
|
|
ty.print()
|
|
);
|
|
has_visible_fields = true;
|
|
}
|
|
}
|
|
|
|
if has_visible_fields {
|
|
if it.has_stripped_fields().unwrap() {
|
|
write!(w, "\n{} // some fields omitted", tab);
|
|
}
|
|
write!(w, "\n{}", tab);
|
|
} else if it.has_stripped_fields().unwrap() {
|
|
// If there are no visible fields we can just display
|
|
// `{ /* fields omitted */ }` to save space.
|
|
write!(w, " /* fields omitted */ ");
|
|
}
|
|
write!(w, "}}");
|
|
}
|
|
doctree::Tuple => {
|
|
write!(w, "(");
|
|
for (i, field) in fields.iter().enumerate() {
|
|
if i > 0 {
|
|
write!(w, ", ");
|
|
}
|
|
match field.inner {
|
|
clean::StrippedItem(box clean::StructFieldItem(..)) => write!(w, "_"),
|
|
clean::StructFieldItem(ref ty) => {
|
|
write!(w, "{}{}", field.visibility.print_with_space(), ty.print())
|
|
}
|
|
_ => unreachable!(),
|
|
}
|
|
}
|
|
write!(w, ")");
|
|
if let Some(g) = g {
|
|
write!(w, "{}", WhereClause { gens: g, indent: 0, end_newline: false })
|
|
}
|
|
write!(w, ";");
|
|
}
|
|
doctree::Unit => {
|
|
// Needed for PhantomData.
|
|
if let Some(g) = g {
|
|
write!(w, "{}", WhereClause { gens: g, indent: 0, end_newline: false })
|
|
}
|
|
write!(w, ";");
|
|
}
|
|
}
|
|
}
|
|
|
|
fn render_union(
|
|
w: &mut Buffer,
|
|
it: &clean::Item,
|
|
g: Option<&clean::Generics>,
|
|
fields: &[clean::Item],
|
|
tab: &str,
|
|
structhead: bool,
|
|
) {
|
|
write!(
|
|
w,
|
|
"{}{}{}",
|
|
it.visibility.print_with_space(),
|
|
if structhead { "union " } else { "" },
|
|
it.name.as_ref().unwrap()
|
|
);
|
|
if let Some(g) = g {
|
|
write!(w, "{}", g.print());
|
|
write!(w, "{}", WhereClause { gens: g, indent: 0, end_newline: true });
|
|
}
|
|
|
|
write!(w, " {{\n{}", tab);
|
|
for field in fields {
|
|
if let clean::StructFieldItem(ref ty) = field.inner {
|
|
write!(
|
|
w,
|
|
" {}{}: {},\n{}",
|
|
field.visibility.print_with_space(),
|
|
field.name.as_ref().unwrap(),
|
|
ty.print(),
|
|
tab
|
|
);
|
|
}
|
|
}
|
|
|
|
if it.has_stripped_fields().unwrap() {
|
|
write!(w, " // some fields omitted\n{}", tab);
|
|
}
|
|
write!(w, "}}");
|
|
}
|
|
|
|
#[derive(Copy, Clone)]
|
|
enum AssocItemLink<'a> {
|
|
Anchor(Option<&'a str>),
|
|
GotoSource(DefId, &'a FxHashSet<String>),
|
|
}
|
|
|
|
impl<'a> AssocItemLink<'a> {
|
|
fn anchor(&self, id: &'a String) -> Self {
|
|
match *self {
|
|
AssocItemLink::Anchor(_) => AssocItemLink::Anchor(Some(&id)),
|
|
ref other => *other,
|
|
}
|
|
}
|
|
}
|
|
|
|
enum AssocItemRender<'a> {
|
|
All,
|
|
DerefFor { trait_: &'a clean::Type, type_: &'a clean::Type, deref_mut_: bool },
|
|
}
|
|
|
|
#[derive(Copy, Clone, PartialEq)]
|
|
enum RenderMode {
|
|
Normal,
|
|
ForDeref { mut_: bool },
|
|
}
|
|
|
|
fn render_assoc_items(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
containing_item: &clean::Item,
|
|
it: DefId,
|
|
what: AssocItemRender<'_>,
|
|
) {
|
|
let c = &cx.cache;
|
|
let v = match c.impls.get(&it) {
|
|
Some(v) => v,
|
|
None => return,
|
|
};
|
|
let (non_trait, traits): (Vec<_>, _) = v.iter().partition(|i| i.inner_impl().trait_.is_none());
|
|
if !non_trait.is_empty() {
|
|
let render_mode = match what {
|
|
AssocItemRender::All => {
|
|
write!(
|
|
w,
|
|
"\
|
|
<h2 id='methods' class='small-section-header'>\
|
|
Methods<a href='#methods' class='anchor'></a>\
|
|
</h2>\
|
|
"
|
|
);
|
|
RenderMode::Normal
|
|
}
|
|
AssocItemRender::DerefFor { trait_, type_, deref_mut_ } => {
|
|
write!(
|
|
w,
|
|
"\
|
|
<h2 id='deref-methods' class='small-section-header'>\
|
|
Methods from {}<Target = {}>\
|
|
<a href='#deref-methods' class='anchor'></a>\
|
|
</h2>\
|
|
",
|
|
trait_.print(),
|
|
type_.print()
|
|
);
|
|
RenderMode::ForDeref { mut_: deref_mut_ }
|
|
}
|
|
};
|
|
for i in &non_trait {
|
|
render_impl(
|
|
w,
|
|
cx,
|
|
i,
|
|
AssocItemLink::Anchor(None),
|
|
render_mode,
|
|
containing_item.stable_since(),
|
|
true,
|
|
None,
|
|
false,
|
|
true,
|
|
&[],
|
|
);
|
|
}
|
|
}
|
|
if let AssocItemRender::DerefFor { .. } = what {
|
|
return;
|
|
}
|
|
if !traits.is_empty() {
|
|
let deref_impl =
|
|
traits.iter().find(|t| t.inner_impl().trait_.def_id() == c.deref_trait_did);
|
|
if let Some(impl_) = deref_impl {
|
|
let has_deref_mut = traits
|
|
.iter()
|
|
.find(|t| t.inner_impl().trait_.def_id() == c.deref_mut_trait_did)
|
|
.is_some();
|
|
render_deref_methods(w, cx, impl_, containing_item, has_deref_mut);
|
|
}
|
|
|
|
let (synthetic, concrete): (Vec<&&Impl>, Vec<&&Impl>) =
|
|
traits.iter().partition(|t| t.inner_impl().synthetic);
|
|
let (blanket_impl, concrete): (Vec<&&Impl>, _) =
|
|
concrete.into_iter().partition(|t| t.inner_impl().blanket_impl.is_some());
|
|
|
|
let mut impls = Buffer::empty_from(&w);
|
|
render_impls(cx, &mut impls, &concrete, containing_item);
|
|
let impls = impls.into_inner();
|
|
if !impls.is_empty() {
|
|
write!(
|
|
w,
|
|
"\
|
|
<h2 id='implementations' class='small-section-header'>\
|
|
Trait Implementations<a href='#implementations' class='anchor'></a>\
|
|
</h2>\
|
|
<div id='implementations-list'>{}</div>",
|
|
impls
|
|
);
|
|
}
|
|
|
|
if !synthetic.is_empty() {
|
|
write!(
|
|
w,
|
|
"\
|
|
<h2 id='synthetic-implementations' class='small-section-header'>\
|
|
Auto Trait Implementations\
|
|
<a href='#synthetic-implementations' class='anchor'></a>\
|
|
</h2>\
|
|
<div id='synthetic-implementations-list'>\
|
|
"
|
|
);
|
|
render_impls(cx, w, &synthetic, containing_item);
|
|
write!(w, "</div>");
|
|
}
|
|
|
|
if !blanket_impl.is_empty() {
|
|
write!(
|
|
w,
|
|
"\
|
|
<h2 id='blanket-implementations' class='small-section-header'>\
|
|
Blanket Implementations\
|
|
<a href='#blanket-implementations' class='anchor'></a>\
|
|
</h2>\
|
|
<div id='blanket-implementations-list'>\
|
|
"
|
|
);
|
|
render_impls(cx, w, &blanket_impl, containing_item);
|
|
write!(w, "</div>");
|
|
}
|
|
}
|
|
}
|
|
|
|
fn render_deref_methods(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
impl_: &Impl,
|
|
container_item: &clean::Item,
|
|
deref_mut: bool,
|
|
) {
|
|
let deref_type = impl_.inner_impl().trait_.as_ref().unwrap();
|
|
let (target, real_target) = impl_
|
|
.inner_impl()
|
|
.items
|
|
.iter()
|
|
.filter_map(|item| match item.inner {
|
|
clean::TypedefItem(ref t, true) => Some(match *t {
|
|
clean::Typedef { item_type: Some(ref type_), .. } => (type_, &t.type_),
|
|
_ => (&t.type_, &t.type_),
|
|
}),
|
|
_ => None,
|
|
})
|
|
.next()
|
|
.expect("Expected associated type binding");
|
|
let what =
|
|
AssocItemRender::DerefFor { trait_: deref_type, type_: real_target, deref_mut_: deref_mut };
|
|
if let Some(did) = target.def_id() {
|
|
render_assoc_items(w, cx, container_item, did, what);
|
|
} else {
|
|
if let Some(prim) = target.primitive_type() {
|
|
if let Some(&did) = cx.cache.primitive_locations.get(&prim) {
|
|
render_assoc_items(w, cx, container_item, did, what);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn should_render_item(item: &clean::Item, deref_mut_: bool) -> bool {
|
|
let self_type_opt = match item.inner {
|
|
clean::MethodItem(ref method) => method.decl.self_type(),
|
|
clean::TyMethodItem(ref method) => method.decl.self_type(),
|
|
_ => None,
|
|
};
|
|
|
|
if let Some(self_ty) = self_type_opt {
|
|
let (by_mut_ref, by_box, by_value) = match self_ty {
|
|
SelfTy::SelfBorrowed(_, mutability)
|
|
| SelfTy::SelfExplicit(clean::BorrowedRef { mutability, .. }) => {
|
|
(mutability == Mutability::Mut, false, false)
|
|
}
|
|
SelfTy::SelfExplicit(clean::ResolvedPath { did, .. }) => {
|
|
(false, Some(did) == cache().owned_box_did, false)
|
|
}
|
|
SelfTy::SelfValue => (false, false, true),
|
|
_ => (false, false, false),
|
|
};
|
|
|
|
(deref_mut_ || !by_mut_ref) && !by_box && !by_value
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
fn render_spotlight_traits(item: &clean::Item) -> String {
|
|
match item.inner {
|
|
clean::FunctionItem(clean::Function { ref decl, .. })
|
|
| clean::TyMethodItem(clean::TyMethod { ref decl, .. })
|
|
| clean::MethodItem(clean::Method { ref decl, .. })
|
|
| clean::ForeignFunctionItem(clean::Function { ref decl, .. }) => spotlight_decl(decl),
|
|
_ => String::new(),
|
|
}
|
|
}
|
|
|
|
fn spotlight_decl(decl: &clean::FnDecl) -> String {
|
|
let mut out = Buffer::html();
|
|
let mut trait_ = String::new();
|
|
|
|
if let Some(did) = decl.output.def_id() {
|
|
let c = cache();
|
|
if let Some(impls) = c.impls.get(&did) {
|
|
for i in impls {
|
|
let impl_ = i.inner_impl();
|
|
if impl_.trait_.def_id().map_or(false, |d| c.traits[&d].is_spotlight) {
|
|
if out.is_empty() {
|
|
out.push_str(&format!(
|
|
"<h3 class=\"important\">Important traits for {}</h3>\
|
|
<code class=\"content\">",
|
|
impl_.for_.print()
|
|
));
|
|
trait_.push_str(&impl_.for_.print().to_string());
|
|
}
|
|
|
|
//use the "where" class here to make it small
|
|
out.push_str(&format!(
|
|
"<span class=\"where fmt-newline\">{}</span>",
|
|
impl_.print()
|
|
));
|
|
let t_did = impl_.trait_.def_id().unwrap();
|
|
for it in &impl_.items {
|
|
if let clean::TypedefItem(ref tydef, _) = it.inner {
|
|
out.push_str("<span class=\"where fmt-newline\"> ");
|
|
assoc_type(
|
|
&mut out,
|
|
it,
|
|
&[],
|
|
Some(&tydef.type_),
|
|
AssocItemLink::GotoSource(t_did, &FxHashSet::default()),
|
|
"",
|
|
);
|
|
out.push_str(";</span>");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if !out.is_empty() {
|
|
out.insert_str(
|
|
0,
|
|
&format!(
|
|
"<div class=\"important-traits\"><div class='tooltip'>ⓘ\
|
|
<span class='tooltiptext'>Important traits for {}</span></div>\
|
|
<div class=\"content hidden\">",
|
|
trait_
|
|
),
|
|
);
|
|
out.push_str("</code></div></div>");
|
|
}
|
|
|
|
out.into_inner()
|
|
}
|
|
|
|
fn render_impl(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
i: &Impl,
|
|
link: AssocItemLink<'_>,
|
|
render_mode: RenderMode,
|
|
outer_version: Option<&str>,
|
|
show_def_docs: bool,
|
|
use_absolute: Option<bool>,
|
|
is_on_foreign_type: bool,
|
|
show_default_items: bool,
|
|
// This argument is used to reference same type with different pathes to avoid duplication
|
|
// in documentation pages for trait with automatic implementations like "Send" and "Sync".
|
|
aliases: &[String],
|
|
) {
|
|
if render_mode == RenderMode::Normal {
|
|
let id = cx.derive_id(match i.inner_impl().trait_ {
|
|
Some(ref t) => {
|
|
if is_on_foreign_type {
|
|
get_id_for_impl_on_foreign_type(&i.inner_impl().for_, t)
|
|
} else {
|
|
format!("impl-{}", small_url_encode(&format!("{:#}", t.print())))
|
|
}
|
|
}
|
|
None => "impl".to_string(),
|
|
});
|
|
let aliases = if aliases.is_empty() {
|
|
String::new()
|
|
} else {
|
|
format!(" aliases=\"{}\"", aliases.join(","))
|
|
};
|
|
if let Some(use_absolute) = use_absolute {
|
|
write!(w, "<h3 id='{}' class='impl'{}><code class='in-band'>", id, aliases);
|
|
fmt_impl_for_trait_page(&i.inner_impl(), w, use_absolute);
|
|
if show_def_docs {
|
|
for it in &i.inner_impl().items {
|
|
if let clean::TypedefItem(ref tydef, _) = it.inner {
|
|
write!(w, "<span class=\"where fmt-newline\"> ");
|
|
assoc_type(
|
|
w,
|
|
it,
|
|
&vec![],
|
|
Some(&tydef.type_),
|
|
AssocItemLink::Anchor(None),
|
|
"",
|
|
);
|
|
write!(w, ";</span>");
|
|
}
|
|
}
|
|
}
|
|
write!(w, "</code>");
|
|
} else {
|
|
write!(
|
|
w,
|
|
"<h3 id='{}' class='impl'{}><code class='in-band'>{}</code>",
|
|
id,
|
|
aliases,
|
|
i.inner_impl().print()
|
|
);
|
|
}
|
|
write!(w, "<a href='#{}' class='anchor'></a>", id);
|
|
let since = i.impl_item.stability.as_ref().map(|s| &s.since[..]);
|
|
render_stability_since_raw(w, since, outer_version);
|
|
if let Some(l) = cx.src_href(&i.impl_item) {
|
|
write!(w, "<a class='srclink' href='{}' title='{}'>[src]</a>", l, "goto source code");
|
|
}
|
|
write!(w, "</h3>");
|
|
if let Some(ref dox) = cx.shared.maybe_collapsed_doc_value(&i.impl_item) {
|
|
let mut ids = cx.id_map.borrow_mut();
|
|
write!(
|
|
w,
|
|
"<div class='docblock'>{}</div>",
|
|
Markdown(
|
|
&*dox,
|
|
&i.impl_item.links(),
|
|
&mut ids,
|
|
cx.shared.codes,
|
|
cx.shared.edition,
|
|
&cx.shared.playground
|
|
)
|
|
.to_string()
|
|
);
|
|
}
|
|
}
|
|
|
|
fn doc_impl_item(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
item: &clean::Item,
|
|
link: AssocItemLink<'_>,
|
|
render_mode: RenderMode,
|
|
is_default_item: bool,
|
|
outer_version: Option<&str>,
|
|
trait_: Option<&clean::Trait>,
|
|
show_def_docs: bool,
|
|
) {
|
|
let item_type = item.type_();
|
|
let name = item.name.as_ref().unwrap();
|
|
|
|
let render_method_item = match render_mode {
|
|
RenderMode::Normal => true,
|
|
RenderMode::ForDeref { mut_: deref_mut_ } => should_render_item(&item, deref_mut_),
|
|
};
|
|
|
|
let (is_hidden, extra_class) =
|
|
if (trait_.is_none() || item.doc_value().is_some() || item.inner.is_associated())
|
|
&& !is_default_item
|
|
{
|
|
(false, "")
|
|
} else {
|
|
(true, " hidden")
|
|
};
|
|
match item.inner {
|
|
clean::MethodItem(clean::Method { ref decl, .. })
|
|
| clean::TyMethodItem(clean::TyMethod { ref decl, .. }) => {
|
|
// Only render when the method is not static or we allow static methods
|
|
if render_method_item {
|
|
let id = cx.derive_id(format!("{}.{}", item_type, name));
|
|
let ns_id = cx.derive_id(format!("{}.{}", name, item_type.name_space()));
|
|
write!(w, "<h4 id='{}' class=\"{}{}\">", id, item_type, extra_class);
|
|
write!(w, "{}", spotlight_decl(decl));
|
|
write!(w, "<code id='{}'>", ns_id);
|
|
render_assoc_item(w, item, link.anchor(&id), ItemType::Impl);
|
|
write!(w, "</code>");
|
|
render_stability_since_raw(w, item.stable_since(), outer_version);
|
|
if let Some(l) = cx.src_href(item) {
|
|
write!(
|
|
w,
|
|
"<a class='srclink' href='{}' title='{}'>[src]</a>",
|
|
l, "goto source code"
|
|
);
|
|
}
|
|
write!(w, "</h4>");
|
|
}
|
|
}
|
|
clean::TypedefItem(ref tydef, _) => {
|
|
let id = cx.derive_id(format!("{}.{}", ItemType::AssocType, name));
|
|
let ns_id = cx.derive_id(format!("{}.{}", name, item_type.name_space()));
|
|
write!(w, "<h4 id='{}' class=\"{}{}\">", id, item_type, extra_class);
|
|
write!(w, "<code id='{}'>", ns_id);
|
|
assoc_type(w, item, &Vec::new(), Some(&tydef.type_), link.anchor(&id), "");
|
|
write!(w, "</code></h4>");
|
|
}
|
|
clean::AssocConstItem(ref ty, ref default) => {
|
|
let id = cx.derive_id(format!("{}.{}", item_type, name));
|
|
let ns_id = cx.derive_id(format!("{}.{}", name, item_type.name_space()));
|
|
write!(w, "<h4 id='{}' class=\"{}{}\">", id, item_type, extra_class);
|
|
write!(w, "<code id='{}'>", ns_id);
|
|
assoc_const(w, item, ty, default.as_ref(), link.anchor(&id), "");
|
|
write!(w, "</code>");
|
|
render_stability_since_raw(w, item.stable_since(), outer_version);
|
|
if let Some(l) = cx.src_href(item) {
|
|
write!(
|
|
w,
|
|
"<a class='srclink' href='{}' title='{}'>[src]</a>",
|
|
l, "goto source code"
|
|
);
|
|
}
|
|
write!(w, "</h4>");
|
|
}
|
|
clean::AssocTypeItem(ref bounds, ref default) => {
|
|
let id = cx.derive_id(format!("{}.{}", item_type, name));
|
|
let ns_id = cx.derive_id(format!("{}.{}", name, item_type.name_space()));
|
|
write!(w, "<h4 id='{}' class=\"{}{}\">", id, item_type, extra_class);
|
|
write!(w, "<code id='{}'>", ns_id);
|
|
assoc_type(w, item, bounds, default.as_ref(), link.anchor(&id), "");
|
|
write!(w, "</code></h4>");
|
|
}
|
|
clean::StrippedItem(..) => return,
|
|
_ => panic!("can't make docs for trait item with name {:?}", item.name),
|
|
}
|
|
|
|
if render_method_item {
|
|
if !is_default_item {
|
|
if let Some(t) = trait_ {
|
|
// The trait item may have been stripped so we might not
|
|
// find any documentation or stability for it.
|
|
if let Some(it) = t.items.iter().find(|i| i.name == item.name) {
|
|
// We need the stability of the item from the trait
|
|
// because impls can't have a stability.
|
|
document_stability(w, cx, it, is_hidden);
|
|
if item.doc_value().is_some() {
|
|
document_full(w, item, cx, "", is_hidden);
|
|
} else if show_def_docs {
|
|
// In case the item isn't documented,
|
|
// provide short documentation from the trait.
|
|
document_short(w, cx, it, link, "", is_hidden);
|
|
}
|
|
}
|
|
} else {
|
|
document_stability(w, cx, item, is_hidden);
|
|
if show_def_docs {
|
|
document_full(w, item, cx, "", is_hidden);
|
|
}
|
|
}
|
|
} else {
|
|
document_stability(w, cx, item, is_hidden);
|
|
if show_def_docs {
|
|
document_short(w, cx, item, link, "", is_hidden);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
let traits = &cx.cache.traits;
|
|
let trait_ = i.trait_did().map(|did| &traits[&did]);
|
|
|
|
write!(w, "<div class='impl-items'>");
|
|
for trait_item in &i.inner_impl().items {
|
|
doc_impl_item(
|
|
w,
|
|
cx,
|
|
trait_item,
|
|
link,
|
|
render_mode,
|
|
false,
|
|
outer_version,
|
|
trait_,
|
|
show_def_docs,
|
|
);
|
|
}
|
|
|
|
fn render_default_items(
|
|
w: &mut Buffer,
|
|
cx: &Context,
|
|
t: &clean::Trait,
|
|
i: &clean::Impl,
|
|
render_mode: RenderMode,
|
|
outer_version: Option<&str>,
|
|
show_def_docs: bool,
|
|
) {
|
|
for trait_item in &t.items {
|
|
let n = trait_item.name.clone();
|
|
if i.items.iter().find(|m| m.name == n).is_some() {
|
|
continue;
|
|
}
|
|
let did = i.trait_.as_ref().unwrap().def_id().unwrap();
|
|
let assoc_link = AssocItemLink::GotoSource(did, &i.provided_trait_methods);
|
|
|
|
doc_impl_item(
|
|
w,
|
|
cx,
|
|
trait_item,
|
|
assoc_link,
|
|
render_mode,
|
|
true,
|
|
outer_version,
|
|
None,
|
|
show_def_docs,
|
|
);
|
|
}
|
|
}
|
|
|
|
// If we've implemented a trait, then also emit documentation for all
|
|
// default items which weren't overridden in the implementation block.
|
|
// We don't emit documentation for default items if they appear in the
|
|
// Implementations on Foreign Types or Implementors sections.
|
|
if show_default_items {
|
|
if let Some(t) = trait_ {
|
|
render_default_items(
|
|
w,
|
|
cx,
|
|
t,
|
|
&i.inner_impl(),
|
|
render_mode,
|
|
outer_version,
|
|
show_def_docs,
|
|
);
|
|
}
|
|
}
|
|
write!(w, "</div>");
|
|
}
|
|
|
|
fn item_opaque_ty(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::OpaqueTy) {
|
|
write!(w, "<pre class='rust opaque'>");
|
|
render_attributes(w, it, false);
|
|
write!(
|
|
w,
|
|
"type {}{}{where_clause} = impl {bounds};</pre>",
|
|
it.name.as_ref().unwrap(),
|
|
t.generics.print(),
|
|
where_clause = WhereClause { gens: &t.generics, indent: 0, end_newline: true },
|
|
bounds = bounds(&t.bounds, false)
|
|
);
|
|
|
|
document(w, cx, it);
|
|
|
|
// Render any items associated directly to this alias, as otherwise they
|
|
// won't be visible anywhere in the docs. It would be nice to also show
|
|
// associated items from the aliased type (see discussion in #32077), but
|
|
// we need #14072 to make sense of the generics.
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn item_trait_alias(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::TraitAlias) {
|
|
write!(w, "<pre class='rust trait-alias'>");
|
|
render_attributes(w, it, false);
|
|
write!(
|
|
w,
|
|
"trait {}{}{} = {};</pre>",
|
|
it.name.as_ref().unwrap(),
|
|
t.generics.print(),
|
|
WhereClause { gens: &t.generics, indent: 0, end_newline: true },
|
|
bounds(&t.bounds, true)
|
|
);
|
|
|
|
document(w, cx, it);
|
|
|
|
// Render any items associated directly to this alias, as otherwise they
|
|
// won't be visible anywhere in the docs. It would be nice to also show
|
|
// associated items from the aliased type (see discussion in #32077), but
|
|
// we need #14072 to make sense of the generics.
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn item_typedef(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Typedef) {
|
|
write!(w, "<pre class='rust typedef'>");
|
|
render_attributes(w, it, false);
|
|
write!(
|
|
w,
|
|
"type {}{}{where_clause} = {type_};</pre>",
|
|
it.name.as_ref().unwrap(),
|
|
t.generics.print(),
|
|
where_clause = WhereClause { gens: &t.generics, indent: 0, end_newline: true },
|
|
type_ = t.type_.print()
|
|
);
|
|
|
|
document(w, cx, it);
|
|
|
|
// Render any items associated directly to this alias, as otherwise they
|
|
// won't be visible anywhere in the docs. It would be nice to also show
|
|
// associated items from the aliased type (see discussion in #32077), but
|
|
// we need #14072 to make sense of the generics.
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn item_foreign_type(w: &mut Buffer, cx: &Context, it: &clean::Item) {
|
|
writeln!(w, "<pre class='rust foreigntype'>extern {{");
|
|
render_attributes(w, it, false);
|
|
write!(
|
|
w,
|
|
" {}type {};\n}}</pre>",
|
|
it.visibility.print_with_space(),
|
|
it.name.as_ref().unwrap(),
|
|
);
|
|
|
|
document(w, cx, it);
|
|
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn print_sidebar(cx: &Context, it: &clean::Item, buffer: &mut Buffer) {
|
|
let parentlen = cx.current.len() - if it.is_mod() { 1 } else { 0 };
|
|
|
|
if it.is_struct()
|
|
|| it.is_trait()
|
|
|| it.is_primitive()
|
|
|| it.is_union()
|
|
|| it.is_enum()
|
|
|| it.is_mod()
|
|
|| it.is_typedef()
|
|
{
|
|
write!(
|
|
buffer,
|
|
"<p class='location'>{}{}</p>",
|
|
match it.inner {
|
|
clean::StructItem(..) => "Struct ",
|
|
clean::TraitItem(..) => "Trait ",
|
|
clean::PrimitiveItem(..) => "Primitive Type ",
|
|
clean::UnionItem(..) => "Union ",
|
|
clean::EnumItem(..) => "Enum ",
|
|
clean::TypedefItem(..) => "Type Definition ",
|
|
clean::ForeignTypeItem => "Foreign Type ",
|
|
clean::ModuleItem(..) =>
|
|
if it.is_crate() {
|
|
"Crate "
|
|
} else {
|
|
"Module "
|
|
},
|
|
_ => "",
|
|
},
|
|
it.name.as_ref().unwrap()
|
|
);
|
|
}
|
|
|
|
if it.is_crate() {
|
|
if let Some(ref version) = cx.cache.crate_version {
|
|
write!(
|
|
buffer,
|
|
"<div class='block version'>\
|
|
<p>Version {}</p>\
|
|
</div>",
|
|
version
|
|
);
|
|
}
|
|
}
|
|
|
|
write!(buffer, "<div class=\"sidebar-elems\">");
|
|
if it.is_crate() {
|
|
write!(
|
|
buffer,
|
|
"<a id='all-types' href='all.html'><p>See all {}'s items</p></a>",
|
|
it.name.as_ref().expect("crates always have a name")
|
|
);
|
|
}
|
|
match it.inner {
|
|
clean::StructItem(ref s) => sidebar_struct(buffer, it, s),
|
|
clean::TraitItem(ref t) => sidebar_trait(buffer, it, t),
|
|
clean::PrimitiveItem(_) => sidebar_primitive(buffer, it),
|
|
clean::UnionItem(ref u) => sidebar_union(buffer, it, u),
|
|
clean::EnumItem(ref e) => sidebar_enum(buffer, it, e),
|
|
clean::TypedefItem(_, _) => sidebar_typedef(buffer, it),
|
|
clean::ModuleItem(ref m) => sidebar_module(buffer, &m.items),
|
|
clean::ForeignTypeItem => sidebar_foreign_type(buffer, it),
|
|
_ => (),
|
|
}
|
|
|
|
// The sidebar is designed to display sibling functions, modules and
|
|
// other miscellaneous information. since there are lots of sibling
|
|
// items (and that causes quadratic growth in large modules),
|
|
// we refactor common parts into a shared JavaScript file per module.
|
|
// still, we don't move everything into JS because we want to preserve
|
|
// as much HTML as possible in order to allow non-JS-enabled browsers
|
|
// to navigate the documentation (though slightly inefficiently).
|
|
|
|
write!(buffer, "<p class='location'>");
|
|
for (i, name) in cx.current.iter().take(parentlen).enumerate() {
|
|
if i > 0 {
|
|
write!(buffer, "::<wbr>");
|
|
}
|
|
write!(
|
|
buffer,
|
|
"<a href='{}index.html'>{}</a>",
|
|
&cx.root_path()[..(cx.current.len() - i - 1) * 3],
|
|
*name
|
|
);
|
|
}
|
|
write!(buffer, "</p>");
|
|
|
|
// Sidebar refers to the enclosing module, not this module.
|
|
let relpath = if it.is_mod() { "../" } else { "" };
|
|
write!(
|
|
buffer,
|
|
"<script>window.sidebarCurrent = {{\
|
|
name: '{name}', \
|
|
ty: '{ty}', \
|
|
relpath: '{path}'\
|
|
}};</script>",
|
|
name = it.name.as_ref().map(|x| &x[..]).unwrap_or(""),
|
|
ty = it.type_(),
|
|
path = relpath
|
|
);
|
|
if parentlen == 0 {
|
|
// There is no sidebar-items.js beyond the crate root path
|
|
// FIXME maybe dynamic crate loading can be merged here
|
|
} else {
|
|
write!(buffer, "<script defer src=\"{path}sidebar-items.js\"></script>", path = relpath);
|
|
}
|
|
// Closes sidebar-elems div.
|
|
write!(buffer, "</div>");
|
|
}
|
|
|
|
fn get_next_url(used_links: &mut FxHashSet<String>, url: String) -> String {
|
|
if used_links.insert(url.clone()) {
|
|
return url;
|
|
}
|
|
let mut add = 1;
|
|
while used_links.insert(format!("{}-{}", url, add)) == false {
|
|
add += 1;
|
|
}
|
|
format!("{}-{}", url, add)
|
|
}
|
|
|
|
fn get_methods(
|
|
i: &clean::Impl,
|
|
for_deref: bool,
|
|
used_links: &mut FxHashSet<String>,
|
|
deref_mut: bool,
|
|
) -> Vec<String> {
|
|
i.items
|
|
.iter()
|
|
.filter_map(|item| match item.name {
|
|
Some(ref name) if !name.is_empty() && item.is_method() => {
|
|
if !for_deref || should_render_item(item, deref_mut) {
|
|
Some(format!(
|
|
"<a href=\"#{}\">{}</a>",
|
|
get_next_url(used_links, format!("method.{}", name)),
|
|
name
|
|
))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
_ => None,
|
|
})
|
|
.collect::<Vec<_>>()
|
|
}
|
|
|
|
// The point is to url encode any potential character from a type with genericity.
|
|
fn small_url_encode(s: &str) -> String {
|
|
s.replace("<", "%3C")
|
|
.replace(">", "%3E")
|
|
.replace(" ", "%20")
|
|
.replace("?", "%3F")
|
|
.replace("'", "%27")
|
|
.replace("&", "%26")
|
|
.replace(",", "%2C")
|
|
.replace(":", "%3A")
|
|
.replace(";", "%3B")
|
|
.replace("[", "%5B")
|
|
.replace("]", "%5D")
|
|
.replace("\"", "%22")
|
|
}
|
|
|
|
fn sidebar_assoc_items(it: &clean::Item) -> String {
|
|
let mut out = String::new();
|
|
let c = cache();
|
|
if let Some(v) = c.impls.get(&it.def_id) {
|
|
let mut used_links = FxHashSet::default();
|
|
|
|
{
|
|
let used_links_bor = &mut used_links;
|
|
let mut ret = v
|
|
.iter()
|
|
.filter(|i| i.inner_impl().trait_.is_none())
|
|
.flat_map(move |i| get_methods(i.inner_impl(), false, used_links_bor, false))
|
|
.collect::<Vec<_>>();
|
|
// We want links' order to be reproducible so we don't use unstable sort.
|
|
ret.sort();
|
|
if !ret.is_empty() {
|
|
out.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#methods\">Methods\
|
|
</a><div class=\"sidebar-links\">{}</div>",
|
|
ret.join("")
|
|
));
|
|
}
|
|
}
|
|
|
|
if v.iter().any(|i| i.inner_impl().trait_.is_some()) {
|
|
if let Some(impl_) = v
|
|
.iter()
|
|
.filter(|i| i.inner_impl().trait_.is_some())
|
|
.find(|i| i.inner_impl().trait_.def_id() == c.deref_trait_did)
|
|
{
|
|
if let Some((target, real_target)) = impl_
|
|
.inner_impl()
|
|
.items
|
|
.iter()
|
|
.filter_map(|item| match item.inner {
|
|
clean::TypedefItem(ref t, true) => Some(match *t {
|
|
clean::Typedef { item_type: Some(ref type_), .. } => (type_, &t.type_),
|
|
_ => (&t.type_, &t.type_),
|
|
}),
|
|
_ => None,
|
|
})
|
|
.next()
|
|
{
|
|
let inner_impl = target
|
|
.def_id()
|
|
.or(target
|
|
.primitive_type()
|
|
.and_then(|prim| c.primitive_locations.get(&prim).cloned()))
|
|
.and_then(|did| c.impls.get(&did));
|
|
if let Some(impls) = inner_impl {
|
|
out.push_str("<a class=\"sidebar-title\" href=\"#deref-methods\">");
|
|
out.push_str(&format!(
|
|
"Methods from {}<Target={}>",
|
|
Escape(&format!(
|
|
"{:#}",
|
|
impl_.inner_impl().trait_.as_ref().unwrap().print()
|
|
)),
|
|
Escape(&format!("{:#}", real_target.print()))
|
|
));
|
|
out.push_str("</a>");
|
|
let mut ret = impls
|
|
.iter()
|
|
.filter(|i| i.inner_impl().trait_.is_none())
|
|
.flat_map(|i| get_methods(i.inner_impl(), true, &mut used_links, true))
|
|
.collect::<Vec<_>>();
|
|
// We want links' order to be reproducible so we don't use unstable sort.
|
|
ret.sort();
|
|
if !ret.is_empty() {
|
|
out.push_str(&format!(
|
|
"<div class=\"sidebar-links\">{}</div>",
|
|
ret.join("")
|
|
));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
let format_impls = |impls: Vec<&Impl>| {
|
|
let mut links = FxHashSet::default();
|
|
|
|
let mut ret = impls
|
|
.iter()
|
|
.filter_map(|i| {
|
|
let is_negative_impl = is_negative_impl(i.inner_impl());
|
|
if let Some(ref i) = i.inner_impl().trait_ {
|
|
let i_display = format!("{:#}", i.print());
|
|
let out = Escape(&i_display);
|
|
let encoded = small_url_encode(&format!("{:#}", i.print()));
|
|
let generated = format!(
|
|
"<a href=\"#impl-{}\">{}{}</a>",
|
|
encoded,
|
|
if is_negative_impl { "!" } else { "" },
|
|
out
|
|
);
|
|
if links.insert(generated.clone()) { Some(generated) } else { None }
|
|
} else {
|
|
None
|
|
}
|
|
})
|
|
.collect::<Vec<String>>();
|
|
ret.sort();
|
|
ret.join("")
|
|
};
|
|
|
|
let (synthetic, concrete): (Vec<&Impl>, Vec<&Impl>) =
|
|
v.iter().partition::<Vec<_>, _>(|i| i.inner_impl().synthetic);
|
|
let (blanket_impl, concrete): (Vec<&Impl>, Vec<&Impl>) = concrete
|
|
.into_iter()
|
|
.partition::<Vec<_>, _>(|i| i.inner_impl().blanket_impl.is_some());
|
|
|
|
let concrete_format = format_impls(concrete);
|
|
let synthetic_format = format_impls(synthetic);
|
|
let blanket_format = format_impls(blanket_impl);
|
|
|
|
if !concrete_format.is_empty() {
|
|
out.push_str(
|
|
"<a class=\"sidebar-title\" href=\"#implementations\">\
|
|
Trait Implementations</a>",
|
|
);
|
|
out.push_str(&format!("<div class=\"sidebar-links\">{}</div>", concrete_format));
|
|
}
|
|
|
|
if !synthetic_format.is_empty() {
|
|
out.push_str(
|
|
"<a class=\"sidebar-title\" href=\"#synthetic-implementations\">\
|
|
Auto Trait Implementations</a>",
|
|
);
|
|
out.push_str(&format!("<div class=\"sidebar-links\">{}</div>", synthetic_format));
|
|
}
|
|
|
|
if !blanket_format.is_empty() {
|
|
out.push_str(
|
|
"<a class=\"sidebar-title\" href=\"#blanket-implementations\">\
|
|
Blanket Implementations</a>",
|
|
);
|
|
out.push_str(&format!("<div class=\"sidebar-links\">{}</div>", blanket_format));
|
|
}
|
|
}
|
|
}
|
|
|
|
out
|
|
}
|
|
|
|
fn sidebar_struct(buf: &mut Buffer, it: &clean::Item, s: &clean::Struct) {
|
|
let mut sidebar = String::new();
|
|
let fields = get_struct_fields_name(&s.fields);
|
|
|
|
if !fields.is_empty() {
|
|
if let doctree::Plain = s.struct_type {
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#fields\">Fields</a>\
|
|
<div class=\"sidebar-links\">{}</div>",
|
|
fields
|
|
));
|
|
}
|
|
}
|
|
|
|
sidebar.push_str(&sidebar_assoc_items(it));
|
|
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn get_id_for_impl_on_foreign_type(for_: &clean::Type, trait_: &clean::Type) -> String {
|
|
small_url_encode(&format!("impl-{:#}-for-{:#}", trait_.print(), for_.print()))
|
|
}
|
|
|
|
fn extract_for_impl_name(item: &clean::Item) -> Option<(String, String)> {
|
|
match item.inner {
|
|
clean::ItemEnum::ImplItem(ref i) => {
|
|
if let Some(ref trait_) = i.trait_ {
|
|
Some((
|
|
format!("{:#}", i.for_.print()),
|
|
get_id_for_impl_on_foreign_type(&i.for_, trait_),
|
|
))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
_ => None,
|
|
}
|
|
}
|
|
|
|
fn is_negative_impl(i: &clean::Impl) -> bool {
|
|
i.polarity == Some(clean::ImplPolarity::Negative)
|
|
}
|
|
|
|
fn sidebar_trait(buf: &mut Buffer, it: &clean::Item, t: &clean::Trait) {
|
|
let mut sidebar = String::new();
|
|
|
|
let types = t
|
|
.items
|
|
.iter()
|
|
.filter_map(|m| match m.name {
|
|
Some(ref name) if m.is_associated_type() => {
|
|
Some(format!("<a href=\"#associatedtype.{name}\">{name}</a>", name = name))
|
|
}
|
|
_ => None,
|
|
})
|
|
.collect::<String>();
|
|
let consts = t
|
|
.items
|
|
.iter()
|
|
.filter_map(|m| match m.name {
|
|
Some(ref name) if m.is_associated_const() => {
|
|
Some(format!("<a href=\"#associatedconstant.{name}\">{name}</a>", name = name))
|
|
}
|
|
_ => None,
|
|
})
|
|
.collect::<String>();
|
|
let mut required = t
|
|
.items
|
|
.iter()
|
|
.filter_map(|m| match m.name {
|
|
Some(ref name) if m.is_ty_method() => {
|
|
Some(format!("<a href=\"#tymethod.{name}\">{name}</a>", name = name))
|
|
}
|
|
_ => None,
|
|
})
|
|
.collect::<Vec<String>>();
|
|
let mut provided = t
|
|
.items
|
|
.iter()
|
|
.filter_map(|m| match m.name {
|
|
Some(ref name) if m.is_method() => {
|
|
Some(format!("<a href=\"#method.{0}\">{0}</a>", name))
|
|
}
|
|
_ => None,
|
|
})
|
|
.collect::<Vec<String>>();
|
|
|
|
if !types.is_empty() {
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#associated-types\">\
|
|
Associated Types</a><div class=\"sidebar-links\">{}</div>",
|
|
types
|
|
));
|
|
}
|
|
if !consts.is_empty() {
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#associated-const\">\
|
|
Associated Constants</a><div class=\"sidebar-links\">{}</div>",
|
|
consts
|
|
));
|
|
}
|
|
if !required.is_empty() {
|
|
required.sort();
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#required-methods\">\
|
|
Required Methods</a><div class=\"sidebar-links\">{}</div>",
|
|
required.join("")
|
|
));
|
|
}
|
|
if !provided.is_empty() {
|
|
provided.sort();
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#provided-methods\">\
|
|
Provided Methods</a><div class=\"sidebar-links\">{}</div>",
|
|
provided.join("")
|
|
));
|
|
}
|
|
|
|
let c = cache();
|
|
|
|
if let Some(implementors) = c.implementors.get(&it.def_id) {
|
|
let mut res = implementors
|
|
.iter()
|
|
.filter(|i| i.inner_impl().for_.def_id().map_or(false, |d| !c.paths.contains_key(&d)))
|
|
.filter_map(|i| match extract_for_impl_name(&i.impl_item) {
|
|
Some((ref name, ref id)) => {
|
|
Some(format!("<a href=\"#{}\">{}</a>", id, Escape(name)))
|
|
}
|
|
_ => None,
|
|
})
|
|
.collect::<Vec<String>>();
|
|
if !res.is_empty() {
|
|
res.sort();
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#foreign-impls\">\
|
|
Implementations on Foreign Types</a><div \
|
|
class=\"sidebar-links\">{}</div>",
|
|
res.join("")
|
|
));
|
|
}
|
|
}
|
|
|
|
sidebar.push_str("<a class=\"sidebar-title\" href=\"#implementors\">Implementors</a>");
|
|
if t.auto {
|
|
sidebar.push_str(
|
|
"<a class=\"sidebar-title\" \
|
|
href=\"#synthetic-implementors\">Auto Implementors</a>",
|
|
);
|
|
}
|
|
|
|
sidebar.push_str(&sidebar_assoc_items(it));
|
|
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar)
|
|
}
|
|
|
|
fn sidebar_primitive(buf: &mut Buffer, it: &clean::Item) {
|
|
let sidebar = sidebar_assoc_items(it);
|
|
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn sidebar_typedef(buf: &mut Buffer, it: &clean::Item) {
|
|
let sidebar = sidebar_assoc_items(it);
|
|
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn get_struct_fields_name(fields: &[clean::Item]) -> String {
|
|
fields
|
|
.iter()
|
|
.filter(|f| if let clean::StructFieldItem(..) = f.inner { true } else { false })
|
|
.filter_map(|f| match f.name {
|
|
Some(ref name) => Some(format!(
|
|
"<a href=\"#structfield.{name}\">\
|
|
{name}</a>",
|
|
name = name
|
|
)),
|
|
_ => None,
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
fn sidebar_union(buf: &mut Buffer, it: &clean::Item, u: &clean::Union) {
|
|
let mut sidebar = String::new();
|
|
let fields = get_struct_fields_name(&u.fields);
|
|
|
|
if !fields.is_empty() {
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#fields\">Fields</a>\
|
|
<div class=\"sidebar-links\">{}</div>",
|
|
fields
|
|
));
|
|
}
|
|
|
|
sidebar.push_str(&sidebar_assoc_items(it));
|
|
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn sidebar_enum(buf: &mut Buffer, it: &clean::Item, e: &clean::Enum) {
|
|
let mut sidebar = String::new();
|
|
|
|
let variants = e
|
|
.variants
|
|
.iter()
|
|
.filter_map(|v| match v.name {
|
|
Some(ref name) => Some(format!(
|
|
"<a href=\"#variant.{name}\">{name}\
|
|
</a>",
|
|
name = name
|
|
)),
|
|
_ => None,
|
|
})
|
|
.collect::<String>();
|
|
if !variants.is_empty() {
|
|
sidebar.push_str(&format!(
|
|
"<a class=\"sidebar-title\" href=\"#variants\">Variants</a>\
|
|
<div class=\"sidebar-links\">{}</div>",
|
|
variants
|
|
));
|
|
}
|
|
|
|
sidebar.push_str(&sidebar_assoc_items(it));
|
|
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn item_ty_to_strs(ty: &ItemType) -> (&'static str, &'static str) {
|
|
match *ty {
|
|
ItemType::ExternCrate | ItemType::Import => ("reexports", "Re-exports"),
|
|
ItemType::Module => ("modules", "Modules"),
|
|
ItemType::Struct => ("structs", "Structs"),
|
|
ItemType::Union => ("unions", "Unions"),
|
|
ItemType::Enum => ("enums", "Enums"),
|
|
ItemType::Function => ("functions", "Functions"),
|
|
ItemType::Typedef => ("types", "Type Definitions"),
|
|
ItemType::Static => ("statics", "Statics"),
|
|
ItemType::Constant => ("constants", "Constants"),
|
|
ItemType::Trait => ("traits", "Traits"),
|
|
ItemType::Impl => ("impls", "Implementations"),
|
|
ItemType::TyMethod => ("tymethods", "Type Methods"),
|
|
ItemType::Method => ("methods", "Methods"),
|
|
ItemType::StructField => ("fields", "Struct Fields"),
|
|
ItemType::Variant => ("variants", "Variants"),
|
|
ItemType::Macro => ("macros", "Macros"),
|
|
ItemType::Primitive => ("primitives", "Primitive Types"),
|
|
ItemType::AssocType => ("associated-types", "Associated Types"),
|
|
ItemType::AssocConst => ("associated-consts", "Associated Constants"),
|
|
ItemType::ForeignType => ("foreign-types", "Foreign Types"),
|
|
ItemType::Keyword => ("keywords", "Keywords"),
|
|
ItemType::OpaqueTy => ("opaque-types", "Opaque Types"),
|
|
ItemType::ProcAttribute => ("attributes", "Attribute Macros"),
|
|
ItemType::ProcDerive => ("derives", "Derive Macros"),
|
|
ItemType::TraitAlias => ("trait-aliases", "Trait aliases"),
|
|
}
|
|
}
|
|
|
|
fn sidebar_module(buf: &mut Buffer, items: &[clean::Item]) {
|
|
let mut sidebar = String::new();
|
|
|
|
if items.iter().any(|it| it.type_() == ItemType::ExternCrate || it.type_() == ItemType::Import)
|
|
{
|
|
sidebar.push_str(&format!(
|
|
"<li><a href=\"#{id}\">{name}</a></li>",
|
|
id = "reexports",
|
|
name = "Re-exports"
|
|
));
|
|
}
|
|
|
|
// ordering taken from item_module, reorder, where it prioritized elements in a certain order
|
|
// to print its headings
|
|
for &myty in &[
|
|
ItemType::Primitive,
|
|
ItemType::Module,
|
|
ItemType::Macro,
|
|
ItemType::Struct,
|
|
ItemType::Enum,
|
|
ItemType::Constant,
|
|
ItemType::Static,
|
|
ItemType::Trait,
|
|
ItemType::Function,
|
|
ItemType::Typedef,
|
|
ItemType::Union,
|
|
ItemType::Impl,
|
|
ItemType::TyMethod,
|
|
ItemType::Method,
|
|
ItemType::StructField,
|
|
ItemType::Variant,
|
|
ItemType::AssocType,
|
|
ItemType::AssocConst,
|
|
ItemType::ForeignType,
|
|
ItemType::Keyword,
|
|
] {
|
|
if items.iter().any(|it| !it.is_stripped() && it.type_() == myty) {
|
|
let (short, name) = item_ty_to_strs(&myty);
|
|
sidebar.push_str(&format!(
|
|
"<li><a href=\"#{id}\">{name}</a></li>",
|
|
id = short,
|
|
name = name
|
|
));
|
|
}
|
|
}
|
|
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\"><ul>{}</ul></div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn sidebar_foreign_type(buf: &mut Buffer, it: &clean::Item) {
|
|
let sidebar = sidebar_assoc_items(it);
|
|
if !sidebar.is_empty() {
|
|
write!(buf, "<div class=\"block items\">{}</div>", sidebar);
|
|
}
|
|
}
|
|
|
|
fn item_macro(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Macro) {
|
|
wrap_into_docblock(w, |w| {
|
|
w.write_str(&highlight::render_with_highlighting(&t.source, Some("macro"), None, None))
|
|
});
|
|
document(w, cx, it)
|
|
}
|
|
|
|
fn item_proc_macro(w: &mut Buffer, cx: &Context, it: &clean::Item, m: &clean::ProcMacro) {
|
|
let name = it.name.as_ref().expect("proc-macros always have names");
|
|
match m.kind {
|
|
MacroKind::Bang => {
|
|
write!(w, "<pre class='rust macro'>");
|
|
write!(w, "{}!() {{ /* proc-macro */ }}", name);
|
|
write!(w, "</pre>");
|
|
}
|
|
MacroKind::Attr => {
|
|
write!(w, "<pre class='rust attr'>");
|
|
write!(w, "#[{}]", name);
|
|
write!(w, "</pre>");
|
|
}
|
|
MacroKind::Derive => {
|
|
write!(w, "<pre class='rust derive'>");
|
|
write!(w, "#[derive({})]", name);
|
|
if !m.helpers.is_empty() {
|
|
writeln!(w, "\n{{");
|
|
writeln!(w, " // Attributes available to this derive:");
|
|
for attr in &m.helpers {
|
|
writeln!(w, " #[{}]", attr);
|
|
}
|
|
write!(w, "}}");
|
|
}
|
|
write!(w, "</pre>");
|
|
}
|
|
}
|
|
document(w, cx, it)
|
|
}
|
|
|
|
fn item_primitive(w: &mut Buffer, cx: &Context, it: &clean::Item) {
|
|
document(w, cx, it);
|
|
render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
|
|
}
|
|
|
|
fn item_keyword(w: &mut Buffer, cx: &Context, it: &clean::Item) {
|
|
document(w, cx, it)
|
|
}
|
|
|
|
crate const BASIC_KEYWORDS: &'static str = "rust, rustlang, rust-lang";
|
|
|
|
fn make_item_keywords(it: &clean::Item) -> String {
|
|
format!("{}, {}", BASIC_KEYWORDS, it.name.as_ref().unwrap())
|
|
}
|
|
|
|
/// Returns a list of all paths used in the type.
|
|
/// This is used to help deduplicate imported impls
|
|
/// for reexported types. If any of the contained
|
|
/// types are re-exported, we don't use the corresponding
|
|
/// entry from the js file, as inlining will have already
|
|
/// picked up the impl
|
|
fn collect_paths_for_type(first_ty: clean::Type) -> Vec<String> {
|
|
let mut out = Vec::new();
|
|
let mut visited = FxHashSet::default();
|
|
let mut work = VecDeque::new();
|
|
let cache = cache();
|
|
|
|
work.push_back(first_ty);
|
|
|
|
while let Some(ty) = work.pop_front() {
|
|
if !visited.insert(ty.clone()) {
|
|
continue;
|
|
}
|
|
|
|
match ty {
|
|
clean::Type::ResolvedPath { did, .. } => {
|
|
let get_extern = || cache.external_paths.get(&did).map(|s| s.0.clone());
|
|
let fqp = cache.exact_paths.get(&did).cloned().or_else(get_extern);
|
|
|
|
match fqp {
|
|
Some(path) => {
|
|
out.push(path.join("::"));
|
|
}
|
|
_ => {}
|
|
};
|
|
}
|
|
clean::Type::Tuple(tys) => {
|
|
work.extend(tys.into_iter());
|
|
}
|
|
clean::Type::Slice(ty) => {
|
|
work.push_back(*ty);
|
|
}
|
|
clean::Type::Array(ty, _) => {
|
|
work.push_back(*ty);
|
|
}
|
|
clean::Type::RawPointer(_, ty) => {
|
|
work.push_back(*ty);
|
|
}
|
|
clean::Type::BorrowedRef { type_, .. } => {
|
|
work.push_back(*type_);
|
|
}
|
|
clean::Type::QPath { self_type, trait_, .. } => {
|
|
work.push_back(*self_type);
|
|
work.push_back(*trait_);
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
out
|
|
}
|
|
|
|
crate fn cache() -> Arc<Cache> {
|
|
CACHE_KEY.with(|c| c.borrow().clone())
|
|
}
|