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Encode crate dependencies' hash and version data

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This commit is contained in:
Haitao Li 2012-04-08 01:59:37 +08:00
parent 5300662b4e
commit 5aa5220f8a
4 changed files with 57 additions and 26 deletions
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25
src/rustc/metadata/decoder.rs
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@ -33,6 +33,7 @@ export list_crate_metadata;
export crate_dep;
export get_crate_deps;
export get_crate_hash;
export get_crate_vers;
export get_impls_for_mod;
export get_iface_methods;
export get_crate_module_paths;
@ -579,16 +580,22 @@ fn get_crate_attributes(data: @[u8]) -> [ast::attribute] {
ret get_attributes(ebml::doc(data));
}
type crate_dep = {cnum: ast::crate_num, ident: str};
type crate_dep = {cnum: ast::crate_num, name: ast::ident,
vers: str, hash: str};
fn get_crate_deps(data: @[u8]) -> [crate_dep] {
let mut deps: [crate_dep] = [];
let cratedoc = ebml::doc(data);
let depsdoc = ebml::get_doc(cratedoc, tag_crate_deps);
let mut crate_num = 1;
fn docstr(doc: ebml::doc, tag_: uint) -> str {
str::from_bytes(ebml::doc_data(ebml::get_doc(doc, tag_)))
}
ebml::tagged_docs(depsdoc, tag_crate_dep) {|depdoc|
let depname = str::from_bytes(ebml::doc_data(depdoc));
deps += [{cnum: crate_num, ident: depname}];
deps += [{cnum: crate_num,
name: docstr(depdoc, tag_crate_dep_name),
vers: docstr(depdoc, tag_crate_dep_vers),
hash: docstr(depdoc, tag_crate_dep_hash)}];
crate_num += 1;
};
ret deps;
@ -598,7 +605,8 @@ fn list_crate_deps(data: @[u8], out: io::writer) {
out.write_str("=External Dependencies=\n");
for get_crate_deps(data).each {|dep|
out.write_str(#fmt["%d %s\n", dep.cnum, dep.ident]);
out.write_str(#fmt["%d %s-%s-%s\n",
dep.cnum, dep.name, dep.hash, dep.vers]);
}
out.write_str("\n");
@ -610,6 +618,15 @@ fn get_crate_hash(data: @[u8]) -> str {
ret str::from_bytes(ebml::doc_data(hashdoc));
}
fn get_crate_vers(data: @[u8]) -> str {
let attrs = decoder::get_crate_attributes(data);
ret alt attr::meta_item_value_from_list(
attr::find_linkage_metas(attrs), "vers") {
some(ver) { ver }
none { "0.0" }
};
}
fn list_crate_items(bytes: @[u8], md: ebml::doc, out: io::writer) {
out.write_str("=Items=\n");
let items = ebml::get_doc(md, tag_items);