diff options
Diffstat (limited to 'lib/hipe/util/hipe_vectors.erl')
| -rw-r--r-- | lib/hipe/util/hipe_vectors.erl | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/lib/hipe/util/hipe_vectors.erl b/lib/hipe/util/hipe_vectors.erl index 7f6c8e91c2..90d736d02c 100644 --- a/lib/hipe/util/hipe_vectors.erl +++ b/lib/hipe/util/hipe_vectors.erl @@ -33,11 +33,25 @@ %% list_to_vector/1, list/1]). --include("hipe_vectors.hrl"). +%%-define(USE_TUPLES, true). +%%-define(USE_GBTREES, true). +-define(USE_ARRAYS, true). + +-type vector() :: vector(_). +-export_type([vector/0, vector/1]). + +-spec new(non_neg_integer(), V) -> vector(E) when V :: E. +-spec set(vector(E), non_neg_integer(), V :: E) -> vector(E). +-spec get(vector(E), non_neg_integer()) -> E. +-spec size(vector(_)) -> non_neg_integer(). +-spec vector_to_list(vector(E)) -> [E]. +%% -spec list_to_vector([E]) -> vector(E). +-spec list(vector(E)) -> [{non_neg_integer(), E}]. %% --------------------------------------------------------------------- -ifdef(USE_TUPLES). +-opaque vector(_) :: tuple(). new(N, V) -> erlang:make_tuple(N, V). @@ -68,8 +82,8 @@ get(Vec, Ix) -> element(Ix+1, Vec). %% --------------------------------------------------------------------- -ifdef(USE_GBTREES). +-opaque vector(E) :: gb_trees:tree(non_neg_integer(), E). --spec new(non_neg_integer(), _) -> hipe_vector(). new(N, V) when is_integer(N), N >= 0 -> gb_trees:from_orddict(mklist(N, V)). @@ -81,14 +95,11 @@ mklist(M, N, V) when M < N -> mklist(_, _, _) -> []. --spec size(hipe_vector()) -> non_neg_integer(). size(V) -> gb_trees:size(V). --spec list(hipe_vector()) -> [{_, _}]. list(Vec) -> gb_trees:to_list(Vec). -%% -spec list_to_vector([_]) -> hipe_vector(). %% list_to_vector(Xs) -> %% gb_trees:from_orddict(index(Xs, 0)). %% @@ -97,16 +108,29 @@ list(Vec) -> %% index([],_) -> %% []. --spec vector_to_list(hipe_vector()) -> [_]. vector_to_list(V) -> gb_trees:values(V). --spec set(hipe_vector(), non_neg_integer(), _) -> hipe_vector(). set(Vec, Ix, V) -> gb_trees:update(Ix, V, Vec). --spec get(hipe_vector(), non_neg_integer()) -> any(). get(Vec, Ix) -> gb_trees:get(Ix, Vec). -endif. %% ifdef USE_GBTREES + +%% --------------------------------------------------------------------- + +-ifdef(USE_ARRAYS). +%%-opaque vector(E) :: array:array(E). +-type vector(E) :: array:array(E). % Work around dialyzer bug + +new(N, V) -> array:new(N, {default, V}). +size(V) -> array:size(V). +list(Vec) -> array:to_orddict(Vec). +%% list_to_vector(Xs) -> array:from_list(Xs). +vector_to_list(V) -> array:to_list(V). +set(Vec, Ix, V) -> array:set(Ix, V, Vec). +get(Vec, Ix) -> array:get(Ix, Vec). + +-endif. %% ifdef USE_ARRAYS |