Created
August 16, 2018 08:24
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Core transform to set all line numbers to the same value (42). Useful for simulating huge Elixir macros.
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| -module(same_line). | |
| -export([core_transform/2]). | |
| %% | |
| %% erlc -pa . '+{core_transform,same_line}' <filename>.erl | |
| %% | |
| core_transform(Core, _Options) -> | |
| F = fun(Node) -> | |
| case cerl:get_ann(Node) of | |
| [Line|Ann] when is_integer(Line) -> | |
| cerl:set_ann(Node, [42|Ann]); | |
| _Ann -> | |
| Node | |
| end | |
| end, | |
| cerl_trees:map(F, Core). |
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