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-rw-r--r--src/mochiweb/mochiglobal.erl107
1 files changed, 0 insertions, 107 deletions
diff --git a/src/mochiweb/mochiglobal.erl b/src/mochiweb/mochiglobal.erl
deleted file mode 100644
index c740b878..00000000
--- a/src/mochiweb/mochiglobal.erl
+++ /dev/null
@@ -1,107 +0,0 @@
-%% @author Bob Ippolito <bob@mochimedia.com>
-%% @copyright 2010 Mochi Media, Inc.
-%% @doc Abuse module constant pools as a "read-only shared heap" (since erts 5.6)
-%% <a href="http://www.erlang.org/pipermail/erlang-questions/2009-March/042503.html">[1]</a>.
--module(mochiglobal).
--author("Bob Ippolito <bob@mochimedia.com>").
--export([get/1, get/2, put/2, delete/1]).
-
--spec get(atom()) -> any() | undefined.
-%% @equiv get(K, undefined)
-get(K) ->
- get(K, undefined).
-
--spec get(atom(), T) -> any() | T.
-%% @doc Get the term for K or return Default.
-get(K, Default) ->
- get(K, Default, key_to_module(K)).
-
-get(_K, Default, Mod) ->
- try Mod:term()
- catch error:undef ->
- Default
- end.
-
--spec put(atom(), any()) -> ok.
-%% @doc Store term V at K, replaces an existing term if present.
-put(K, V) ->
- put(K, V, key_to_module(K)).
-
-put(_K, V, Mod) ->
- Bin = compile(Mod, V),
- code:purge(Mod),
- code:load_binary(Mod, atom_to_list(Mod) ++ ".erl", Bin),
- ok.
-
--spec delete(atom()) -> boolean().
-%% @doc Delete term stored at K, no-op if non-existent.
-delete(K) ->
- delete(K, key_to_module(K)).
-
-delete(_K, Mod) ->
- code:purge(Mod),
- code:delete(Mod).
-
--spec key_to_module(atom()) -> atom().
-key_to_module(K) ->
- list_to_atom("mochiglobal:" ++ atom_to_list(K)).
-
--spec compile(atom(), any()) -> binary().
-compile(Module, T) ->
- {ok, Module, Bin} = compile:forms(forms(Module, T),
- [verbose, report_errors]),
- Bin.
-
--spec forms(atom(), any()) -> [erl_syntax:syntaxTree()].
-forms(Module, T) ->
- [erl_syntax:revert(X) || X <- term_to_abstract(Module, term, T)].
-
--spec term_to_abstract(atom(), atom(), any()) -> [erl_syntax:syntaxTree()].
-term_to_abstract(Module, Getter, T) ->
- [%% -module(Module).
- erl_syntax:attribute(
- erl_syntax:atom(module),
- [erl_syntax:atom(Module)]),
- %% -export([Getter/0]).
- erl_syntax:attribute(
- erl_syntax:atom(export),
- [erl_syntax:list(
- [erl_syntax:arity_qualifier(
- erl_syntax:atom(Getter),
- erl_syntax:integer(0))])]),
- %% Getter() -> T.
- erl_syntax:function(
- erl_syntax:atom(Getter),
- [erl_syntax:clause([], none, [erl_syntax:abstract(T)])])].
-
-%%
-%% Tests
-%%
--include_lib("eunit/include/eunit.hrl").
--ifdef(TEST).
-get_put_delete_test() ->
- K = '$$test$$mochiglobal',
- delete(K),
- ?assertEqual(
- bar,
- get(K, bar)),
- try
- ?MODULE:put(K, baz),
- ?assertEqual(
- baz,
- get(K, bar)),
- ?MODULE:put(K, wibble),
- ?assertEqual(
- wibble,
- ?MODULE:get(K))
- after
- delete(K)
- end,
- ?assertEqual(
- bar,
- get(K, bar)),
- ?assertEqual(
- undefined,
- ?MODULE:get(K)),
- ok.
--endif.