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// Copyright 2012 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.
//! Records the full path to items
use core::prelude::*;
use astsrv;
use doc::ItemUtils;
use doc;
use fold::Fold;
use fold;
use pass::Pass;
#[cfg(test)] use extract;
use syntax::ast;
pub fn mk_pass() -> Pass {
Pass {
name: ~"path",
f: run
}
}
struct Ctxt {
srv: astsrv::Srv,
path: @mut ~[~str]
}
impl Clone for Ctxt {
fn clone(&self) -> Ctxt {
Ctxt {
srv: self.srv.clone(),
path: @mut copy *self.path
}
}
}
#[allow(non_implicitly_copyable_typarams)]
fn run(srv: astsrv::Srv, doc: doc::Doc) -> doc::Doc {
let ctxt = Ctxt {
srv: srv,
path: @mut ~[]
};
let fold = Fold {
ctxt: ctxt.clone(),
fold_item: fold_item,
fold_mod: fold_mod,
fold_nmod: fold_nmod,
.. fold::default_any_fold(ctxt)
};
(fold.fold_doc)(&fold, doc)
}
fn fold_item(fold: &fold::Fold<Ctxt>, doc: doc::ItemDoc) -> doc::ItemDoc {
doc::ItemDoc {
path: copy *fold.ctxt.path,
.. doc
}
}
#[allow(non_implicitly_copyable_typarams)]
fn fold_mod(fold: &fold::Fold<Ctxt>, doc: doc::ModDoc) -> doc::ModDoc {
let is_topmod = doc.id() == ast::crate_node_id;
if !is_topmod { fold.ctxt.path.push(doc.name()); }
let doc = fold::default_any_fold_mod(fold, doc);
if !is_topmod { fold.ctxt.path.pop(); }
doc::ModDoc {
item: (fold.fold_item)(fold, copy doc.item),
.. doc
}
}
fn fold_nmod(fold: &fold::Fold<Ctxt>, doc: doc::NmodDoc) -> doc::NmodDoc {
fold.ctxt.path.push(doc.name());
let doc = fold::default_seq_fold_nmod(fold, doc);
fold.ctxt.path.pop();
doc::NmodDoc {
item: (fold.fold_item)(fold, copy doc.item),
.. doc
}
}
#[test]
fn should_record_mod_paths() {
let source = ~"mod a { mod b { mod c { } } mod d { mod e { } } }";
do astsrv::from_str(source) |srv| {
let doc = extract::from_srv(srv.clone(), ~"");
let doc = run(srv.clone(), doc);
fail_unless!(doc.cratemod().mods()[0].mods()[0].mods()[0].path()
== ~[~"a", ~"b"]);
fail_unless!(doc.cratemod().mods()[0].mods()[1].mods()[0].path()
== ~[~"a", ~"d"]);
}
}
#[test]
fn should_record_fn_paths() {
let source = ~"mod a { fn b() { } }";
do astsrv::from_str(source) |srv| {
let doc = extract::from_srv(srv.clone(), ~"");
let doc = run(srv.clone(), doc);
fail_unless!(doc.cratemod().mods()[0].fns()[0].path() == ~[~"a"]);
}
}
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