2011-07-07 23:29:09 -07:00
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// Searching for information from the cstore
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2012-03-19 10:19:00 -07:00
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import std::{ebml};
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2011-07-07 22:18:38 -07:00
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import syntax::ast;
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2012-01-21 02:45:25 +08:00
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import syntax::ast_util;
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2012-05-21 23:34:34 -07:00
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import syntax::ast_map;
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import middle::ty;
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2012-02-10 06:01:32 -08:00
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import option::{some, none};
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2012-05-22 17:48:04 -07:00
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import syntax::diagnostic::span_handler;
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import syntax::diagnostic::expect;
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2012-03-19 10:19:00 -07:00
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import common::*;
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2012-03-07 16:48:57 -08:00
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import std::map::hashmap;
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2011-07-08 14:53:25 -07:00
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2012-05-15 17:59:55 -07:00
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export class_dtor;
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2011-07-08 14:53:25 -07:00
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export get_symbol;
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2012-03-19 10:19:00 -07:00
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export get_class_fields;
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2012-03-22 18:03:12 -07:00
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export get_class_method;
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2012-03-19 10:19:00 -07:00
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export get_field_type;
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2011-07-08 14:53:25 -07:00
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export get_type_param_count;
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export lookup_defs;
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2012-02-13 18:56:09 +01:00
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export lookup_method_purity;
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2012-01-25 14:34:31 +01:00
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export get_enum_variants;
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2011-12-16 14:41:12 +01:00
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export get_impls_for_mod;
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2012-01-05 13:57:27 +01:00
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export get_iface_methods;
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2011-07-08 14:53:25 -07:00
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export get_type;
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2012-01-05 10:57:19 +01:00
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export get_impl_iface;
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2012-03-08 12:15:02 +01:00
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export get_impl_method;
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2012-02-10 06:01:32 -08:00
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export get_item_path;
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2012-03-08 23:13:57 +01:00
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export maybe_get_item_ast, found_ast, found, found_parent, not_found;
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2011-07-07 22:18:38 -07:00
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2011-09-12 11:27:30 +02:00
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fn get_symbol(cstore: cstore::cstore, def: ast::def_id) -> str {
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2011-07-27 14:19:39 +02:00
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let cdata = cstore::get_crate_data(cstore, def.crate).data;
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2011-07-26 14:06:02 +02:00
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ret decoder::get_symbol(cdata, def.node);
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2011-07-07 22:18:38 -07:00
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}
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2011-09-12 11:27:30 +02:00
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fn get_type_param_count(cstore: cstore::cstore, def: ast::def_id) -> uint {
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2011-07-27 14:19:39 +02:00
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let cdata = cstore::get_crate_data(cstore, def.crate).data;
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2011-07-26 14:06:02 +02:00
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ret decoder::get_type_param_count(cdata, def.node);
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2011-07-07 22:18:38 -07:00
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}
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2011-09-12 11:27:30 +02:00
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fn lookup_defs(cstore: cstore::cstore, cnum: ast::crate_num,
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2012-06-25 20:00:46 -07:00
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path: [ast::ident]/~) -> [ast::def]/~ {
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let mut result = []/~;
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2012-03-06 08:02:13 -08:00
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#debug("lookup_defs: path = %? cnum = %?", path, cnum);
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2012-04-06 20:01:43 +02:00
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for resolve_path(cstore, cnum, path).each {|elt|
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let (c, data, def) = elt;
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2012-06-26 00:39:18 -07:00
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vec::push(result, decoder::lookup_def(c, data, def));
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2011-12-15 18:42:27 +08:00
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}
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ret result;
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}
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2012-02-13 18:56:09 +01:00
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fn lookup_method_purity(cstore: cstore::cstore, did: ast::def_id)
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-> ast::purity {
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let cdata = cstore::get_crate_data(cstore, did.crate).data;
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2012-02-15 15:42:35 +01:00
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alt check decoder::lookup_def(did.crate, cdata, did) {
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2012-02-13 18:56:09 +01:00
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ast::def_fn(_, p) { p }
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}
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}
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2012-03-16 19:19:37 -07:00
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/* Returns a vector of possible def IDs for a given path,
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in a given crate */
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2011-12-15 18:42:27 +08:00
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fn resolve_path(cstore: cstore::cstore, cnum: ast::crate_num,
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2012-06-25 20:00:46 -07:00
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path: [ast::ident]/~) ->
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[(ast::crate_num, @[u8]/~, ast::def_id)]/~ {
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2011-12-15 18:42:27 +08:00
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let cm = cstore::get_crate_data(cstore, cnum);
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2011-12-22 16:13:40 -08:00
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#debug("resolve_path %s in crates[%d]:%s",
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2012-06-10 00:49:59 -07:00
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ast_util::path_name_i(path), cnum, cm.name);
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2012-06-25 20:00:46 -07:00
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let mut result = []/~;
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2012-04-06 20:01:43 +02:00
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for decoder::resolve_path(path, cm.data).each {|def|
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2011-12-15 18:42:27 +08:00
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if def.crate == ast::local_crate {
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2012-06-26 00:39:18 -07:00
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vec::push(result, (cnum, cm.data, def));
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2011-12-15 18:42:27 +08:00
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} else {
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if cm.cnum_map.contains_key(def.crate) {
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2012-04-30 23:26:21 -07:00
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// This reexport is itself a reexport from another crate
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2011-12-15 18:42:27 +08:00
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let next_cnum = cm.cnum_map.get(def.crate);
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let next_cm_data = cstore::get_crate_data(cstore, next_cnum);
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2012-06-26 00:39:18 -07:00
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vec::push(result, (next_cnum, next_cm_data.data, def));
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2011-12-15 18:42:27 +08:00
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}
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}
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}
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ret result;
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2011-07-08 14:53:25 -07:00
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}
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2012-02-10 06:01:32 -08:00
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fn get_item_path(tcx: ty::ctxt, def: ast::def_id) -> ast_map::path {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-02-10 06:01:32 -08:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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2012-02-11 09:49:38 -08:00
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let path = decoder::get_item_path(cdata, def.node);
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2012-03-02 20:06:08 -08:00
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// FIXME #1920: This path is not always correct if the crate is not linked
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// into the root namespace.
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2012-06-25 20:00:46 -07:00
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[ast_map::path_mod(@cdata.name)]/~ + path
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2012-02-10 06:01:32 -08:00
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}
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2012-03-08 23:13:57 +01:00
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enum found_ast {
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found(ast::inlined_item),
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found_parent(ast::def_id, ast::inlined_item),
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not_found,
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}
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2012-02-14 15:21:53 -08:00
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// Finds the AST for this item in the crate metadata, if any. If the item was
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// not marked for inlining, then the AST will not be present and hence none
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// will be returned.
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2012-05-14 17:46:45 -07:00
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fn maybe_get_item_ast(tcx: ty::ctxt, def: ast::def_id,
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decode_inlined_item: decoder::decode_inlined_item)
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2012-03-08 23:13:57 +01:00
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-> found_ast {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-02-14 15:21:53 -08:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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2012-05-14 17:46:45 -07:00
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decoder::maybe_get_item_ast(cdata, tcx, def.node,
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decode_inlined_item)
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2012-02-14 15:21:53 -08:00
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}
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2012-06-25 20:00:46 -07:00
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fn get_enum_variants(tcx: ty::ctxt, def: ast::def_id)
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-> [ty::variant_info]/~ {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-01-05 16:04:59 +01:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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2012-01-25 14:34:31 +01:00
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ret decoder::get_enum_variants(cdata, def.node, tcx)
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2011-07-07 22:18:38 -07:00
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}
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2011-12-16 14:41:12 +01:00
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fn get_impls_for_mod(cstore: cstore::cstore, def: ast::def_id,
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2012-01-31 17:05:20 -08:00
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name: option<ast::ident>)
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2012-06-25 20:00:46 -07:00
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-> @[@decoder::_impl]/~ {
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2012-01-05 16:04:59 +01:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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2012-04-16 14:58:58 -07:00
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decoder::get_impls_for_mod(cdata, def.node, name) {|cnum|
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cstore::get_crate_data(cstore, cnum)
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}
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2011-12-16 14:41:12 +01:00
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}
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2012-06-25 20:00:46 -07:00
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fn get_iface_methods(tcx: ty::ctxt, def: ast::def_id) -> @[ty::method]/~ {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-01-05 16:04:59 +01:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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decoder::get_iface_methods(cdata, def.node, tcx)
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2011-12-16 14:41:12 +01:00
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}
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2012-06-25 20:00:46 -07:00
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fn get_class_fields(tcx: ty::ctxt, def: ast::def_id) -> [ty::field_ty]/~ {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-03-06 08:02:13 -08:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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2012-03-21 12:42:34 -07:00
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decoder::get_class_fields(cdata, def.node)
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2012-03-06 08:02:13 -08:00
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}
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2011-12-28 17:50:12 +01:00
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fn get_type(tcx: ty::ctxt, def: ast::def_id) -> ty::ty_param_bounds_and_ty {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-01-05 16:04:59 +01:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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decoder::get_type(cdata, def.node, tcx)
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2011-07-07 22:18:38 -07:00
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}
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2012-03-19 10:19:00 -07:00
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fn get_field_type(tcx: ty::ctxt, class_id: ast::def_id,
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def: ast::def_id) -> ty::ty_param_bounds_and_ty {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-03-19 10:19:00 -07:00
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let cdata = cstore::get_crate_data(cstore, class_id.crate);
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let all_items = ebml::get_doc(ebml::doc(cdata.data), tag_items);
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#debug("Looking up %?", class_id);
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2012-05-22 17:48:04 -07:00
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let class_doc = expect(tcx.diag,
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2012-03-19 10:19:00 -07:00
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decoder::maybe_find_item(class_id.node, all_items),
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{|| #fmt("get_field_type: class ID %? not found",
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class_id)});
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#debug("looking up %? : %?", def, class_doc);
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2012-05-22 17:48:04 -07:00
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let the_field = expect(tcx.diag,
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2012-03-19 10:19:00 -07:00
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decoder::maybe_find_item(def.node, class_doc),
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{|| #fmt("get_field_type: in class %?, field ID %? not found",
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class_id, def)});
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#debug("got field data %?", the_field);
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let ty = decoder::item_type(def, the_field, tcx, cdata);
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2012-06-25 20:00:46 -07:00
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ret {bounds: @[]/~, rp: ast::rp_none, ty: ty};
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2012-03-19 10:19:00 -07:00
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}
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2012-04-13 12:22:35 -07:00
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// Given a def_id for an impl or class, return the iface it implements,
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// or none if it's not for an impl or for a class that implements ifaces
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fn get_impl_iface(tcx: ty::ctxt, def: ast::def_id) -> option<ty::t> {
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2012-05-22 17:48:04 -07:00
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let cstore = tcx.cstore;
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2012-01-05 16:04:59 +01:00
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let cdata = cstore::get_crate_data(cstore, def.crate);
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decoder::get_impl_iface(cdata, def.node, tcx)
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2011-07-07 22:18:38 -07:00
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}
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2012-06-10 00:49:59 -07:00
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fn get_impl_method(cstore: cstore::cstore,
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def: ast::def_id, mname: ast::ident)
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2012-03-08 12:15:02 +01:00
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-> ast::def_id {
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let cdata = cstore::get_crate_data(cstore, def.crate);
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decoder::get_impl_method(cdata, def.node, mname)
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}
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2012-03-22 18:03:12 -07:00
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/* Because classes use the iface format rather than the impl format
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for their methods (so that get_iface_methods can be reused to get
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class methods), classes require a slightly different version of
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get_impl_method. Sigh. */
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2012-06-10 00:49:59 -07:00
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fn get_class_method(cstore: cstore::cstore,
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def: ast::def_id, mname: ast::ident)
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2012-03-22 18:03:12 -07:00
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-> ast::def_id {
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let cdata = cstore::get_crate_data(cstore, def.crate);
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decoder::get_class_method(cdata, def.node, mname)
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}
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2012-05-15 17:59:55 -07:00
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/* If def names a class with a dtor, return it. Otherwise, return none. */
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fn class_dtor(cstore: cstore::cstore, def: ast::def_id)
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-> option<ast::def_id> {
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let cdata = cstore::get_crate_data(cstore, def.crate);
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decoder::class_dtor(cdata, def.node)
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}
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2011-07-07 22:18:38 -07:00
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// Local Variables:
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// mode: rust
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// End:
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