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|
//! Breaks rustdocs into sections according to their headers
import doc::item_utils;
export mk_pass;
fn mk_pass() -> pass {
{
name: ~"sectionalize",
f: run
}
}
fn run(_srv: astsrv::srv, doc: doc::doc) -> doc::doc {
let fold = fold::fold({
fold_item: fold_item,
fold_trait: fold_trait,
fold_impl: fold_impl
with *fold::default_any_fold(())
});
fold.fold_doc(fold, doc)
}
fn fold_item(fold: fold::fold<()>, doc: doc::itemdoc) -> doc::itemdoc {
let doc = fold::default_seq_fold_item(fold, doc);
let (desc, sections) = sectionalize(doc.desc);
{
desc: desc,
sections: sections
with doc
}
}
fn fold_trait(fold: fold::fold<()>, doc: doc::traitdoc) -> doc::traitdoc {
let doc = fold::default_seq_fold_trait(fold, doc);
{
methods: do par::map(doc.methods) |method| {
let (desc, sections) = sectionalize(method.desc);
{
desc: desc,
sections: sections
with method
}
}
with doc
}
}
fn fold_impl(fold: fold::fold<()>, doc: doc::impldoc) -> doc::impldoc {
let doc = fold::default_seq_fold_impl(fold, doc);
{
methods: do par::map(doc.methods) |method| {
let (desc, sections) = sectionalize(method.desc);
{
desc: desc,
sections: sections
with method
}
}
with doc
}
}
fn sectionalize(desc: option<~str>) -> (option<~str>, ~[doc::section]) {
/*!
* Take a description of the form
*
* General text
*
* # Section header
*
* Section text
*
* # Section header
*
* Section text
*
* and remove each header and accompanying text into section records.
*/
if option::is_none(desc) {
return (none, ~[]);
}
let lines = str::lines(option::get(desc));
let mut new_desc = none::<~str>;
let mut current_section = none;
let mut sections = ~[];
for lines.each |line| {
alt parse_header(line) {
some(header) {
if option::is_some(current_section) {
sections += ~[option::get(current_section)];
}
current_section = some({
header: header,
body: ~""
});
}
none {
alt copy current_section {
some(section) {
current_section = some({
body: section.body + ~"\n" + line
with section
});
}
none {
new_desc = alt new_desc {
some(desc) {
some(desc + ~"\n" + line)
}
none {
some(line)
}
};
}
}
}
}
}
if option::is_some(current_section) {
sections += ~[option::get(current_section)];
}
(new_desc, sections)
}
fn parse_header(line: ~str) -> option<~str> {
if str::starts_with(line, ~"# ") {
some(str::slice(line, 2u, str::len(line)))
} else {
none
}
}
#[test]
fn should_create_section_headers() {
let doc = test::mk_doc(
~"#[doc = \"\
# Header\n\
Body\"]\
mod a { }");
assert str::contains(
doc.cratemod().mods()[0].item.sections[0].header,
~"Header");
}
#[test]
fn should_create_section_bodies() {
let doc = test::mk_doc(
~"#[doc = \"\
# Header\n\
Body\"]\
mod a { }");
assert str::contains(
doc.cratemod().mods()[0].item.sections[0].body,
~"Body");
}
#[test]
fn should_not_create_sections_from_indented_headers() {
let doc = test::mk_doc(
~"#[doc = \"\n\
Text\n # Header\n\
Body\"]\
mod a { }");
assert vec::is_empty(doc.cratemod().mods()[0].item.sections);
}
#[test]
fn should_remove_section_text_from_main_desc() {
let doc = test::mk_doc(
~"#[doc = \"\
Description\n\n\
# Header\n\
Body\"]\
mod a { }");
assert !str::contains(
option::get(doc.cratemod().mods()[0].desc()),
~"Header");
assert !str::contains(
option::get(doc.cratemod().mods()[0].desc()),
~"Body");
}
#[test]
fn should_eliminate_desc_if_it_is_just_whitespace() {
let doc = test::mk_doc(
~"#[doc = \"\
# Header\n\
Body\"]\
mod a { }");
assert doc.cratemod().mods()[0].desc() == none;
}
#[test]
fn should_sectionalize_trait_methods() {
let doc = test::mk_doc(
~"trait i {
#[doc = \"\
# Header\n\
Body\"]\
fn a(); }");
assert doc.cratemod().traits()[0].methods[0].sections.len() == 1u;
}
#[test]
fn should_sectionalize_impl_methods() {
let doc = test::mk_doc(
~"impl i for bool {
#[doc = \"\
# Header\n\
Body\"]\
fn a() { } }");
assert doc.cratemod().impls()[0].methods[0].sections.len() == 1u;
}
#[cfg(test)]
mod test {
fn mk_doc(source: ~str) -> doc::doc {
do astsrv::from_str(source) |srv| {
let doc = extract::from_srv(srv, ~"");
let doc = attr_pass::mk_pass().f(srv, doc);
run(srv, doc)
}
}
}
|
