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| author | Hans Bolinder <[email protected]> | 2015-11-05 17:09:09 +0100 |
|---|---|---|
| committer | Hans Bolinder <[email protected]> | 2015-12-07 09:41:25 +0100 |
| commit | 0ad8b47ce2ec578eab64896a3ba8af3f71ce2fd1 (patch) | |
| tree | 0c78d10e233c52545a84795724d2b88313084106 /lib | |
| parent | 4b5cc477a78247dd68f142d5cb044ff0c34a576b (diff) | |
| download | otp-0ad8b47ce2ec578eab64896a3ba8af3f71ce2fd1.tar.gz otp-0ad8b47ce2ec578eab64896a3ba8af3f71ce2fd1.tar.bz2 otp-0ad8b47ce2ec578eab64896a3ba8af3f71ce2fd1.zip | |
stdlib: Pretty-print constraints as 'V :: T'
Print constraints as 'V :: T' rather than 'is_subtype(V, T)'.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/stdlib/src/erl_pp.erl | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl index f7a969977a..9c812395e3 100644 --- a/lib/stdlib/src/erl_pp.erl +++ b/lib/stdlib/src/erl_pp.erl @@ -253,6 +253,8 @@ lattribute(import, Name, _Opts, _State) when is_list(Name) -> attr("import", [{var,a0(),pname(Name)}]); lattribute(import, {From,Falist}, _Opts, _State) -> attr("import",[{var,a0(),pname(From)},falist(Falist)]); +lattribute(export_type, Talist, _Opts, _State) -> + call({var,a0(),"-export_type"}, [falist(Talist)], 0, options(none)); lattribute(optional_callbacks, Falist, Opts, _State) -> ArgL = try falist(Falist) catch _:_ -> abstract(Falist, Opts) @@ -321,7 +323,6 @@ ltype({type,_,'fun',[{type,_,any},_]}=FunType, _) -> ltype({type,_Line,'fun',[{type,_,product,_},_]}=FunType, _) -> [fun_type(['fun',$(], FunType),$)]; ltype({type,Line,T,Ts}, _) -> - %% Compatibility. Before 18.0. simple_type({atom,Line,T}, Ts); ltype({user_type,Line,T,Ts}, _) -> simple_type({atom,Line,T}, Ts); @@ -399,6 +400,9 @@ guard_type(Before, Gs) -> Gl = {list,[{step,'when',expr_list(Gs, [$,], fun constraint/2, Opts)}]}, {list,[{step,Before,Gl}]}. +constraint({type,_Line,constraint,[{atom,_,is_subtype},[{var,_,_}=V,Type]]}, + _Opts) -> + typed(lexpr(V, options(none)), Type); constraint({type,_Line,constraint,[Tag,As]}, _Opts) -> simple_type(Tag, As). |