/
desc_pass.rs
160 lines (141 loc) · 4.57 KB
/
desc_pass.rs
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#[doc = "Generic pass for performing an operation on all descriptions"];
export mk_pass;
fn mk_pass(op: fn~(str) -> str) -> pass {
fn~(srv: astsrv::srv, doc: doc::cratedoc) -> doc::cratedoc {
run(srv, doc, op)
}
}
type op = fn~(str) -> str;
fn run(
_srv: astsrv::srv,
doc: doc::cratedoc,
op: op
) -> doc::cratedoc {
let fold = fold::fold({
fold_mod: fold_mod,
fold_const: fold_const,
fold_fn: fold_fn,
fold_enum: fold_enum,
fold_res: fold_res
with *fold::default_seq_fold(op)
});
fold.fold_crate(fold, doc)
}
fn maybe_apply_op(op: op, s: option<str>) -> option<str> {
option::map(s) {|s| op(s) }
}
fn fold_mod(fold: fold::fold<op>, doc: doc::moddoc) -> doc::moddoc {
let doc = fold::default_seq_fold_mod(fold, doc);
~{
brief: maybe_apply_op(fold.ctxt, doc.brief),
desc: maybe_apply_op(fold.ctxt, doc.desc)
with *doc
}
}
fn fold_const(fold: fold::fold<op>, doc: doc::constdoc) -> doc::constdoc {
let doc = fold::default_seq_fold_const(fold, doc);
~{
brief: maybe_apply_op(fold.ctxt, doc.brief),
desc: maybe_apply_op(fold.ctxt, doc.desc)
with *doc
}
}
fn fold_fn(fold: fold::fold<op>, doc: doc::fndoc) -> doc::fndoc {
let doc = fold::default_seq_fold_fn(fold, doc);
~{
brief: maybe_apply_op(fold.ctxt, doc.brief),
desc: maybe_apply_op(fold.ctxt, doc.desc),
args: vec::map(doc.args) {|doc|
~{
desc: maybe_apply_op(fold.ctxt, doc.desc)
with *doc
}
},
return: {
desc: maybe_apply_op(fold.ctxt, doc.return.desc)
with doc.return
},
failure: maybe_apply_op(fold.ctxt, doc.failure)
with *doc
}
}
fn fold_enum(fold: fold::fold<op>, doc: doc::enumdoc) -> doc::enumdoc {
~{
brief: maybe_apply_op(fold.ctxt, doc.brief),
desc: maybe_apply_op(fold.ctxt, doc.desc),
variants: vec::map(doc.variants) {|variant|
~{
desc: maybe_apply_op(fold.ctxt, variant.desc)
with *variant
}
}
with *doc
}
}
fn fold_res(fold: fold::fold<op>, doc: doc::resdoc) -> doc::resdoc {
~{
brief: maybe_apply_op(fold.ctxt, doc.brief),
desc: maybe_apply_op(fold.ctxt, doc.desc),
args: vec::map(doc.args) {|arg|
~{
desc: maybe_apply_op(fold.ctxt, arg.desc)
with *arg
}
}
with *doc
}
}
#[test]
fn should_execute_op_on_enum_brief() {
let source = "#[doc(brief = \" a \")] enum a { b }";
let srv = astsrv::mk_srv_from_str(source);
let doc = extract::from_srv(srv, "");
let doc = attr_pass::mk_pass()(srv, doc);
let doc = mk_pass(str::trim)(srv, doc);
assert doc.topmod.enums()[0].brief == some("a");
}
#[test]
fn should_execute_op_on_enum_desc() {
let source = "#[doc(desc = \" a \")] enum a { b }";
let srv = astsrv::mk_srv_from_str(source);
let doc = extract::from_srv(srv, "");
let doc = attr_pass::mk_pass()(srv, doc);
let doc = mk_pass(str::trim)(srv, doc);
assert doc.topmod.enums()[0].desc == some("a");
}
#[test]
fn should_execute_op_on_variant_desc() {
let source = "enum a { #[doc = \" a \"] b }";
let srv = astsrv::mk_srv_from_str(source);
let doc = extract::from_srv(srv, "");
let doc = attr_pass::mk_pass()(srv, doc);
let doc = mk_pass(str::trim)(srv, doc);
assert doc.topmod.enums()[0].variants[0].desc == some("a");
}
#[test]
fn should_execute_op_on_resource_brief() {
let source = "#[doc(brief = \" a \")] resource r(a: bool) { }";
let srv = astsrv::mk_srv_from_str(source);
let doc = extract::from_srv(srv, "");
let doc = attr_pass::mk_pass()(srv, doc);
let doc = mk_pass(str::trim)(srv, doc);
assert doc.topmod.resources()[0].brief == some("a");
}
#[test]
fn should_execute_op_on_resource_desc() {
let source = "#[doc(desc = \" a \")] resource r(a: bool) { }";
let srv = astsrv::mk_srv_from_str(source);
let doc = extract::from_srv(srv, "");
let doc = attr_pass::mk_pass()(srv, doc);
let doc = mk_pass(str::trim)(srv, doc);
assert doc.topmod.resources()[0].desc == some("a");
}
#[test]
fn should_execute_op_on_resource_args() {
let source = "#[doc(args(a = \" a \"))] resource r(a: bool) { }";
let srv = astsrv::mk_srv_from_str(source);
let doc = extract::from_srv(srv, "");
let doc = attr_pass::mk_pass()(srv, doc);
let doc = mk_pass(str::trim)(srv, doc);
assert doc.topmod.resources()[0].args[0].desc == some("a");
}