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| author | Björn-Egil Dahlberg <[email protected]> | 2015-03-16 14:45:17 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-03-19 14:57:55 +0100 |
| commit | 7a9b4fe58c17c95c9be0ad13d33fce5042db24b2 (patch) | |
| tree | 915669ea4a6a82376a2bc6a118786d84dc951f82 /erts/preloaded | |
| parent | 401e2544564526039ac87b3ffe79eb8af30b37b4 (diff) | |
| download | otp-7a9b4fe58c17c95c9be0ad13d33fce5042db24b2.tar.gz otp-7a9b4fe58c17c95c9be0ad13d33fce5042db24b2.tar.bz2 otp-7a9b4fe58c17c95c9be0ad13d33fce5042db24b2.zip | |
erts: Add map decomposition wrappers
* erts_internal:map_type/1
* erts_internal:map_hashmap_children/1
Diffstat (limited to 'erts/preloaded')
| -rw-r--r-- | erts/preloaded/src/erts_internal.erl | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl index 2c5bd82cf0..5756d80424 100644 --- a/erts/preloaded/src/erts_internal.erl +++ b/erts/preloaded/src/erts_internal.erl @@ -30,7 +30,7 @@ -export([await_port_send_result/3]). -export([cmp_term/2]). --export([map_to_tuple_keys/1]). +-export([map_to_tuple_keys/1, map_type/1, map_hashmap_children/1]). -export([port_command/3, port_connect/2, port_close/1, port_control/3, port_call/3, port_info/1, port_info/2]). @@ -178,3 +178,20 @@ cmp_term(_A,_B) -> map_to_tuple_keys(_M) -> erlang:nif_error(undefined). + +%% return the internal map type +-spec map_type(M) -> Type when + M :: map(), + Type :: 'flatmap' | 'hashmap' | 'hashmap_node'. + +map_type(_M) -> + erlang:nif_error(undefined). + +%% return the internal hashmap sub-nodes from +%% a hashmap node +-spec map_hashmap_children(M) -> Children when + M :: map(), %% hashmap node + Children :: [map() | nonempty_improper_list(term(),term())]. + +map_hashmap_children(_M) -> + erlang:nif_error(undefined). |