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author | Björn Gustavsson <[email protected]> | 2015-02-05 09:50:28 +0100 |
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committer | Björn Gustavsson <[email protected]> | 2015-02-05 09:50:28 +0100 |
commit | 9d99c5fde589a98af4b173f816f648716b3127b8 (patch) | |
tree | 4fa8098a7cae62a56c1e56066dd4c93cb7dd48e4 /lib/compiler | |
parent | 431c196486ebc3d6cc684419d8594eb26deaf846 (diff) | |
parent | f667931e2905797ffab63e224e56eaf07f77178a (diff) | |
download | otp-9d99c5fde589a98af4b173f816f648716b3127b8.tar.gz otp-9d99c5fde589a98af4b173f816f648716b3127b8.tar.bz2 otp-9d99c5fde589a98af4b173f816f648716b3127b8.zip |
Merge branch 'bjorn/compiler/map-core-syntax/OTP-12454'
* bjorn/compiler/map-core-syntax/OTP-12454:
Make the syntax for map pairs readable
Diffstat (limited to 'lib/compiler')
-rw-r--r-- | lib/compiler/src/core_parse.yrl | 16 | ||||
-rw-r--r-- | lib/compiler/src/core_pp.erl | 14 | ||||
-rw-r--r-- | lib/compiler/src/core_scan.erl | 6 | ||||
-rw-r--r-- | lib/compiler/test/core_SUITE_data/map_core_test.core | 12 |
4 files changed, 23 insertions, 25 deletions
diff --git a/lib/compiler/src/core_parse.yrl b/lib/compiler/src/core_parse.yrl index 849f801a11..8bdb6bc37d 100644 --- a/lib/compiler/src/core_parse.yrl +++ b/lib/compiler/src/core_parse.yrl @@ -58,7 +58,8 @@ Terminals %% Separators -'(' ')' '{' '}' '[' ']' '|' ',' '->' '=' '/' '<' '>' ':' '-|' '#' '~' '::' +'(' ')' '{' '}' '[' ']' '|' ',' '->' '=' '/' '<' '>' ':' '-|' '#' +'~' '=>' ':=' %% Keywords (atoms are assumed to always be single-quoted). @@ -189,8 +190,9 @@ map_pattern -> '~' '{' map_pair_patterns '}' '~' : map_pair_patterns -> map_pair_pattern : ['$1']. map_pair_patterns -> map_pair_pattern ',' map_pair_patterns : ['$1' | '$3']. -map_pair_pattern -> '~' '<' anno_expression ',' anno_pattern '>' : - #c_map_pair{op=#c_literal{val=exact},key='$3',val='$5'}. +map_pair_pattern -> anno_expression ':=' anno_pattern : + #c_map_pair{op=#c_literal{val=exact}, + key='$1',val='$3'}. cons_pattern -> '[' anno_pattern tail_pattern : c_cons('$2', '$3'). @@ -295,10 +297,10 @@ map_pairs -> map_pair ',' map_pairs : ['$1' | '$3']. map_pair -> map_pair_assoc : '$1'. map_pair -> map_pair_exact : '$1'. -map_pair_assoc -> '::' '<' anno_expression ',' anno_expression'>' : - #c_map_pair{op=#c_literal{val=assoc},key='$3',val='$5'}. -map_pair_exact -> '~' '<' anno_expression ',' anno_expression'>' : - #c_map_pair{op=#c_literal{val=exact},key='$3',val='$5'}. +map_pair_assoc -> anno_expression '=>' anno_expression : + #c_map_pair{op=#c_literal{val=assoc},key='$1',val='$3'}. +map_pair_exact -> anno_expression ':=' anno_expression : + #c_map_pair{op=#c_literal{val=exact},key='$1',val='$3'}. cons -> '[' anno_expression tail : c_cons('$2', '$3'). diff --git a/lib/compiler/src/core_pp.erl b/lib/compiler/src/core_pp.erl index 01922c3fdf..662ef6c83f 100644 --- a/lib/compiler/src/core_pp.erl +++ b/lib/compiler/src/core_pp.erl @@ -183,15 +183,9 @@ format_1(#c_map{arg=Var,es=Es}, Ctxt) -> "}~" ]; format_1(#c_map_pair{op=#c_literal{val=assoc},key=K,val=V}, Ctxt) -> - ["::<", - format_map_pair(K, V, Ctxt), - ">" - ]; + format_map_pair("=>", K, V, Ctxt); format_1(#c_map_pair{op=#c_literal{val=exact},key=K,val=V}, Ctxt) -> - ["~<", - format_map_pair(K, V, Ctxt), - ">" - ]; + format_map_pair(":=", K, V, Ctxt); format_1(#c_cons{hd=H,tl=T}, Ctxt) -> Txt = ["["|format(H, add_indent(Ctxt, 1))], [Txt|format_list_tail(T, add_indent(Ctxt, width(Txt, Ctxt)))]; @@ -448,11 +442,11 @@ format_list_tail(#c_cons{anno=[],hd=H,tl=T}, Ctxt) -> format_list_tail(Tail, Ctxt) -> ["|",format(Tail, add_indent(Ctxt, 1)),"]"]. -format_map_pair(K, V, Ctxt0) -> +format_map_pair(Op, K, V, Ctxt0) -> Ctxt1 = add_indent(Ctxt0, 1), Txt = format(K, set_class(Ctxt1, expr)), Ctxt2 = add_indent(Ctxt0, width(Txt, Ctxt1)), - [Txt,",",format(V, Ctxt2)]. + [Txt,Op,format(V, Ctxt2)]. indent(Ctxt) -> indent(Ctxt#ctxt.indent, Ctxt). diff --git a/lib/compiler/src/core_scan.erl b/lib/compiler/src/core_scan.erl index b7799b373a..8ab20b1982 100644 --- a/lib/compiler/src/core_scan.erl +++ b/lib/compiler/src/core_scan.erl @@ -271,8 +271,10 @@ scan1("->" ++ Cs, Toks, Pos) -> scan1(Cs, [{'->',Pos}|Toks], Pos); scan1("-|" ++ Cs, Toks, Pos) -> scan1(Cs, [{'-|',Pos}|Toks], Pos); -scan1("::" ++ Cs, Toks, Pos) -> - scan1(Cs, [{'::',Pos}|Toks], Pos); +scan1(":=" ++ Cs, Toks, Pos) -> + scan1(Cs, [{':=',Pos}|Toks], Pos); +scan1("=>" ++ Cs, Toks, Pos) -> + scan1(Cs, [{'=>',Pos}|Toks], Pos); scan1([C|Cs], Toks, Pos) -> %Punctuation character P = list_to_atom([C]), scan1(Cs, [{P,Pos}|Toks], Pos); diff --git a/lib/compiler/test/core_SUITE_data/map_core_test.core b/lib/compiler/test/core_SUITE_data/map_core_test.core index 2aa853d450..a75f6cf24f 100644 --- a/lib/compiler/test/core_SUITE_data/map_core_test.core +++ b/lib/compiler/test/core_SUITE_data/map_core_test.core @@ -7,11 +7,11 @@ module 'map_core_test' ['map_core_test'/0, fun () -> let <_cor0> = %% Line 15 - ~{::<'check','ok'>,::<1337,#{#<104>(8,1,'integer',['unsigned'|['big']]), + ~{'check'=>'ok',1337=>#{#<104>(8,1,'integer',['unsigned'|['big']]), #<101>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), - #<111>(8,1,'integer',['unsigned'|['big']])}#>,::<'val',0>}~ + #<111>(8,1,'integer',['unsigned'|['big']])}#,'val'=>0}~ in let <M> = %% Line 15 apply 'id'/1 @@ -23,7 +23,7 @@ module 'map_core_test' ['map_core_test'/0, in %% Line 16 case apply 'call'/2 (M, _cor2) of - <~{~<1337,#{#<104>(8,1,'integer',['unsigned'|['big']]), + <~{1337:=#{#<104>(8,1,'integer',['unsigned'|['big']]), #<101>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), @@ -39,7 +39,7 @@ module 'map_core_test' ['map_core_test'/0, #<32>(8,1,'integer',['unsigned'|['big']]), #<53>(8,1,'integer',['unsigned'|['big']]), #<32>(8,1,'integer',['unsigned'|['big']]), - #<54>(8,1,'integer',['unsigned'|['big']])}#>,~<'check','ok'>,~<'val',21>}~> when 'true' -> + #<54>(8,1,'integer',['unsigned'|['big']])}#,'check':='ok','val':=21}~> when 'true' -> %% Line 17 'ok' ( <_cor3> when 'true' -> @@ -51,7 +51,7 @@ module 'map_core_test' ['map_core_test'/0, %% Line 20 fun (_cor1,_cor0) -> case <_cor1,_cor0> of - <M = ~{~<1337,Bin>,~<'check',_cor8>,~<'val',Val>}~,[V|Vs]> when 'true' -> + <M = ~{1337:=Bin,'check':=_cor8,'val':=Val}~,[V|Vs]> when 'true' -> let <_cor3> = %% Line 21 call 'erlang':'+' @@ -67,7 +67,7 @@ module 'map_core_test' ['map_core_test'/0, (Val, V) in let <_cor5> = %% Line 21 - ~{~<1337,_cor4>,~<'val',_cor2>|M}~ + ~{1337:=_cor4,'val':=_cor2|M}~ in %% Line 21 apply 'call'/2 (_cor5, Vs) |