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See examples/pmod.erl and examples/ex_pmod.erl
This works similarly to OTP's parameterized modules, which they are
now saying that they will drop. Since they drop the compiler support,
a slightly different notation is needed.
-pmod_vars([V1, V2, ...]). % defines the 'global' variables.
-pmod_funs([F1/A1, ...]). % defines which functions are to be exported.
The functions listed in -pmod_funs/1 are transformed to take an extra
argument, and a new(V1, V2, ...) function is added and exported.
Example:
Eshell V5.9 (abort with ^G)
1> c(ex_pmod).
{ok,ex_pmod}
2> M = ex_pmod:new(a,b).
{ex_pmod,{a,b}}
3> M:b(x,y).
{x,y,a,b}
15 lines
151 B
Erlang
15 lines
151 B
Erlang
-module(ex_pmod).
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-compile({parse_transform, pmod}).
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-pmod_vars(['A', 'B']).
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-pmod_funs([a/1,
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b/2]).
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a(X) ->
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X.
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b(X,Y) ->
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{X,Y,A,B}.
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