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// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use rustc;
use rustc::{driver, middle};
use rustc::middle::privacy;
use rustc::middle::lint;
use syntax::ast;
use syntax::parse::token;
use syntax;
use std::cell::RefCell;
use std::os;
use std::collections::{HashMap, HashSet};
use visit_ast::RustdocVisitor;
use clean;
use clean::Clean;
pub enum MaybeTyped {
Typed(middle::ty::ctxt),
NotTyped(driver::session::Session)
}
pub type ExternalPaths = RefCell<Option<HashMap<ast::DefId,
(Vec<String>, clean::TypeKind)>>>;
pub struct DocContext {
pub krate: ast::Crate,
pub maybe_typed: MaybeTyped,
pub src: Path,
pub external_paths: ExternalPaths,
pub external_traits: RefCell<Option<HashMap<ast::DefId, clean::Trait>>>,
pub external_typarams: RefCell<Option<HashMap<ast::DefId, String>>>,
pub inlined: RefCell<Option<HashSet<ast::DefId>>>,
pub populated_crate_impls: RefCell<HashSet<ast::CrateNum>>,
}
impl DocContext {
pub fn sess<'a>(&'a self) -> &'a driver::session::Session {
match self.maybe_typed {
Typed(ref tcx) => &tcx.sess,
NotTyped(ref sess) => sess
}
}
}
pub struct CrateAnalysis {
pub exported_items: privacy::ExportedItems,
pub public_items: privacy::PublicItems,
pub external_paths: ExternalPaths,
pub external_traits: RefCell<Option<HashMap<ast::DefId, clean::Trait>>>,
pub external_typarams: RefCell<Option<HashMap<ast::DefId, String>>>,
pub inlined: RefCell<Option<HashSet<ast::DefId>>>,
}
/// Parses, resolves, and typechecks the given crate
fn get_ast_and_resolve(cpath: &Path, libs: HashSet<Path>, cfgs: Vec<String>)
-> (DocContext, CrateAnalysis) {
use syntax::codemap::dummy_spanned;
use rustc::driver::driver::{FileInput,
phase_1_parse_input,
phase_2_configure_and_expand,
phase_3_run_analysis_passes};
use rustc::driver::config::build_configuration;
let input = FileInput(cpath.clone());
let sessopts = driver::config::Options {
maybe_sysroot: Some(os::self_exe_path().unwrap().dir_path()),
addl_lib_search_paths: RefCell::new(libs),
crate_types: vec!(driver::config::CrateTypeRlib),
lint_opts: vec!((lint::Warnings, lint::Allow)),
..rustc::driver::config::basic_options().clone()
};
let codemap = syntax::codemap::CodeMap::new();
let diagnostic_handler = syntax::diagnostic::default_handler(syntax::diagnostic::Auto);
let span_diagnostic_handler =
syntax::diagnostic::mk_span_handler(diagnostic_handler, codemap);
let sess = driver::session::build_session_(sessopts,
Some(cpath.clone()),
span_diagnostic_handler);
let mut cfg = build_configuration(&sess);
for cfg_ in cfgs.move_iter() {
let cfg_ = token::intern_and_get_ident(cfg_.as_slice());
cfg.push(box(GC) dummy_spanned(ast::MetaWord(cfg_)));
}
let krate = phase_1_parse_input(&sess, cfg, &input);
let (krate, ast_map) = phase_2_configure_and_expand(&sess, krate,
&from_str("rustdoc").unwrap());
let driver::driver::CrateAnalysis {
exported_items, public_items, ty_cx, ..
} = phase_3_run_analysis_passes(sess, &krate, ast_map);
debug!("crate: {:?}", krate);
(DocContext {
krate: krate,
maybe_typed: Typed(ty_cx),
src: cpath.clone(),
external_traits: RefCell::new(Some(HashMap::new())),
external_typarams: RefCell::new(Some(HashMap::new())),
external_paths: RefCell::new(Some(HashMap::new())),
inlined: RefCell::new(Some(HashSet::new())),
populated_crate_impls: RefCell::new(HashSet::new()),
}, CrateAnalysis {
exported_items: exported_items,
public_items: public_items,
external_paths: RefCell::new(None),
external_traits: RefCell::new(None),
external_typarams: RefCell::new(None),
inlined: RefCell::new(None),
})
}
pub fn run_core(libs: HashSet<Path>, cfgs: Vec<String>, path: &Path)
-> (clean::Crate, CrateAnalysis) {
let (ctxt, analysis) = get_ast_and_resolve(path, libs, cfgs);
let ctxt = box(GC) ctxt;
super::ctxtkey.replace(Some(ctxt));
let krate = {
let mut v = RustdocVisitor::new(&*ctxt, Some(&analysis));
v.visit(&ctxt.krate);
v.clean()
};
let external_paths = ctxt.external_paths.borrow_mut().take();
*analysis.external_paths.borrow_mut() = external_paths;
let map = ctxt.external_traits.borrow_mut().take();
*analysis.external_traits.borrow_mut() = map;
let map = ctxt.external_typarams.borrow_mut().take();
*analysis.external_typarams.borrow_mut() = map;
let map = ctxt.inlined.borrow_mut().take();
*analysis.inlined.borrow_mut() = map;
(krate, analysis)
}
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