51 lines
1.7 KiB
Erlang
51 lines
1.7 KiB
Erlang
%% An Erlang module that behaves like an Elixir module
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%% used for bootstraping.
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-module(elixir_bootstrap).
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-export(['MACRO-def'/2, 'MACRO-def'/3, 'MACRO-defp'/3, 'MACRO-defmodule'/3,
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'MACRO-defmacro'/2, 'MACRO-defmacro'/3, 'MACRO-defmacrop'/3,
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'MACRO-@'/2, '__info__'/1]).
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-define(kernel, 'Elixir.Kernel').
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%% Mock out @ to be a no-op unless Kernel is defined.
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'MACRO-@'(Caller, Tree) ->
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unless_loaded('MACRO-@', [Caller, Tree], fun() -> nil end).
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'MACRO-def'(Caller, Call) -> 'MACRO-def'(Caller, Call, nil).
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'MACRO-def'(Caller, Call, Expr) -> define(Caller, def, Call, Expr).
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'MACRO-defp'(Caller, Call, Expr) -> define(Caller, defp, Call, Expr).
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'MACRO-defmacro'(Caller, Call) -> 'MACRO-defmacro'(Caller, Call, nil).
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'MACRO-defmacro'(Caller, Call, Expr) -> define(Caller, defmacro, Call, Expr).
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'MACRO-defmacrop'(Caller, Call, Expr) -> define(Caller, defmacrop, Call, Expr).
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'MACRO-defmodule'(_Caller, Alias, [{do,Block}]) ->
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{ Escaped, _ } = elixir_quote:escape(Block, false),
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Args = [Alias, Escaped, [], env()],
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{ { '.', [], [elixir_module, compile] }, [], Args }.
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'__info__'(functions) ->
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[];
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'__info__'(macros) ->
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[{ '@', 1 },
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{def,1},
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{def,2},
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{defmacro,1},
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{defmacro,2},
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{defmacrop,2},
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{defmodule,2},
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{defp,2}].
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define({Line,E}, Kind, Call, Expr) ->
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{ EscapedCall, UC } = elixir_quote:escape(Call, true),
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{ EscapedExpr, UE } = elixir_quote:escape(Expr, true),
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Args = [Line, Kind, not(UC or UE), EscapedCall, EscapedExpr, elixir_locals:cache_env(E)],
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{ { '.', [], [elixir_def, store_definition] }, [], Args }.
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unless_loaded(Fun, Args, Callback) ->
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case code:is_loaded(?kernel) of
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{ _, _} -> apply(?kernel, Fun, Args);
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false -> Callback()
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end.
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env() ->
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{ '__ENV__', [], nil }. |