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Add some helper functions to front::attr

This commit is contained in:
Brian Anderson 2011-06-30 16:53:13 -07:00
parent 5fb9cad38d
commit 26ce1e1035
1 changed files with 20 additions and 0 deletions
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20
src/comp/front/attr.rs
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@ -3,6 +3,7 @@
import std::vec;
import std::option;
import front::ast;
import util::common;
export attr_metas;
export find_linkage_metas;
@ -12,6 +13,9 @@ export contains;
export sort_meta_items;
export remove_meta_items_by_name;
export get_attr_name;
export mk_name_value_item;
export mk_link_item;
export mk_word_item;
// From a list of crate attributes get only the meta_items that impact crate
// linkage
@ -159,6 +163,22 @@ fn remove_meta_items_by_name(&vec[@ast::meta_item] items,
ret vec::filter_map(filter, items);
}
fn span[T](&T item) -> common::spanned[T] {
ret rec(node=item, span=rec(lo=0u, hi=0u));
}
fn mk_name_value_item(ast::ident name, str value) -> @ast::meta_item {
ret @span(ast::meta_name_value(name, value));
}
fn mk_list_item(ast::ident name, &vec[@ast::meta_item] items) -> @ast::meta_item {
ret @span(ast::meta_list(name, items));
}
fn mk_word_item(ast::ident name) -> @ast::meta_item {
ret @span(ast::meta_word(name));
}
//
// Local Variables:
// mode: rust