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+%% -*- Mode: erlang; indent-tabs-mode: nil -*-
+%% Copyright Ericsson AB 2017. All Rights Reserved.
+
+%%% Function (and funs) indentation
+
+%%% Not everything in these test are set in stone
+%%% better indentation rules can be added but by having
+%%% these tests we can see what changes in new implementations
+%%% and notice when doing unintentional changes
+
+-export([
+ func1/0,
+ func2/0,
+ a_function_with_a_very_very_long_name/0,
+ when1/2
+ ]).
+
+-compile([nowarn_unused_functions,
+ {inline, [
+ func2/2,
+ func3/2
+ ]
+ }
+ ]).
+
+func1() ->
+ basic.
+
+func2(A1,
+ A2) ->
+ ok.
+
+func3(
+ A1,
+ A2
+ ) ->
+ ok.
+
+%% Okeefe style
+func4(A1
+ ,A2
+ ,A3
+ ) ->
+ ok.
+
+a_function_with_a_very_very_long_name() ->
+ A00 = #record{
+ field1=1,
+ field2=1
+ },
+ A00.
+
+when1(W1, W2)
+ when is_number(W1),
+ is_number(W2) ->
+ ok.
+
+when2(W1,W2,W3) when
+ W1 > W2,
+ W2 > W3 ->
+ ok.
+
+when3(W1,W2,W3) when
+ W1 > W2,
+ W2 > W3
+ ->
+ ok.
+
+when4(W1,W2,W3)
+ when
+ W1 > W2,
+ W2 > W3 ->
+ ok.
+
+match1({[H|T],
+ Other},
+ M1A2) ->
+ ok.
+
+match2(
+ {
+ [H|T],
+ Other
+ },
+ M2A2
+ ) ->
+ ok.
+
+match3({
+ M3A1,
+ [
+ H |
+ T
+ ],
+ Other
+ },
+ M3A2
+ ) ->
+ ok.
+
+match4(<<
+ M4A:8,
+ M4B:16/unsigned-integer,
+ _/binary
+ >>,
+ M4C) ->
+ ok.
+
+match5(M5A,
+ #record{
+ b=M5B,
+ c=M5C
+ }
+ ) ->
+ ok.
+
+match6(M6A,
+ #{key6a := a6,
+ key6b := b6
+ }) ->
+ ok.
+
+funs(1)
+ when
+ X ->
+ %% Changed fun to one indention level
+ %% 'when' and several clause forces a depth of '4'
+ Var = spawn(fun(X, _)
+ when X == 2;
+ X > 10 ->
+ hello,
+ case Hello() of
+ true when is_atom(X) ->
+ foo;
+ false ->
+ bar
+ end;
+ (Foo) when is_atom(Foo),
+ is_integer(X) ->
+ X = 6* 45,
+ Y = true andalso
+ kalle
+ end),
+ Var;
+funs(2) ->
+ %% check EEP37 named funs
+ Fn1 = fun
+ Factory(N) when
+ N > 0 ->
+ F = Fact(N-1),
+ N * F;
+ Factory(0) ->
+ 1
+ end,
+ Fn1;
+funs(3) ->
+ %% check anonymous funs too
+ Fn2 = fun(0) ->
+ 1;
+ (N) ->
+ N
+ end,
+ ok;
+funs(4) ->
+ X = lists:foldr(fun(M) ->
+ <<M/binary, " ">>
+ end, [], Z),
+ A = <<X/binary, 0:8>>,
+ A.