Merge pull request #52 from aeternity/new-aci-generator
PT-163022973 Make a new aci generator
This commit is contained in:
Robert Virding
GitHub
commit
7bf7cb0b8f
209
src/aeso_aci.erl
209
src/aeso_aci.erl
@ -1,24 +1,27 @@
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%%%-------------------------------------------------------------------
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%%% @author Robert Virding
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%%% @copyright (C) 2017, Aeternity Anstalt
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%%% @copyright (C) 2019, Aeternity Anstalt
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%%% @doc
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%%% ACI interface
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%%% @end
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%%% Created : 12 Dec 2017
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%%% Created : 12 Jan 2019
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%%%-------------------------------------------------------------------
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-module(aeso_aci).
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-export([encode/1,encode/2,decode/1]).
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-export([encode_type/1,encode_stmt/1,encode_expr/1]).
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%% Define records for the various typed syntactic forms. These make
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%% the code easier but don't seem to exist elsewhere.
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%% Top-level
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-record(contract, {ann,con,decls}).
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%% -record(namespace, {ann,con,decls}).
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-record(letfun, {ann,id,args,type,body}).
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-record(type_def, {ann,id,vars,typedef}).
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%% Types
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-record(app_t, {ann,id,fields}).
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-record(tuple_t, {ann,args}).
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-record(record_t, {fields}).
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@ -28,6 +31,7 @@
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-record(constr_t, {ann,con,args}).
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-record(fun_t, {ann,named,args,type}).
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%% Tokens
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-record(arg, {ann,id,type}).
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-record(id, {ann,name}).
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-record(con, {ann,name}).
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@ -35,6 +39,16 @@
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-record(qcon, {ann,names}).
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-record(tvar, {ann,name}).
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%% Expressions
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-record(bool, {ann,bool}).
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-record(int, {ann,value}).
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-record(string, {ann,bin}).
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-record(hash, {ann,hash}).
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-record(tuple, {ann,args}).
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-record(list, {ann,args}).
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-record(app, {ann,func,args}).
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-record(typed, {ann,expr,type}).
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%% encode(ContractString) -> {ok,JSON} | {error,String}.
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%% encode(ContractString, Options) -> {ok,JSON} | {error,String}.
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%% Build a JSON structure with lists and tuples, not maps, as this
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@ -59,7 +73,7 @@ encode(ContractString, Options) ->
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T <- sort_decls(contract_types(Contract)) ],
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Fdefs = [ encode_func(F) || F <- sort_decls(contract_funcs(Contract)),
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not is_private_func(F) ],
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Jmap = [{<<"contract">>, [{<<"name">>, list_to_binary(Cname)},
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Jmap = [{<<"contract">>, [{<<"name">>, encode_name(Cname)},
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{<<"type_defs">>, Tdefs},
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{<<"functions">>, Fdefs}]}],
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%% io:format("~p\n", [Jmap]),
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@ -80,74 +94,135 @@ join_errors(Prefix, Errors, Pfun) ->
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Ess = [ Pfun(E) || E <- Errors ],
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list_to_binary(string:join([Prefix|Ess], "\n")).
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%% encode_func(Function) -> JSON
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%% Encode a function definition. Currently we are only interested in
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%% the interface and type.
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encode_func(Fdef) ->
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Name = function_name(Fdef),
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Args = function_args(Fdef),
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Type = function_type(Fdef),
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[{<<"name">>, list_to_binary(Name)},
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[{<<"name">>, encode_name(Name)},
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{<<"arguments">>, encode_args(Args)},
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{<<"type">>, list_to_binary(encode_type(Type))},
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{<<"returns">>, encode_type(Type)},
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{<<"stateful">>, is_stateful_func(Fdef)}].
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%% encode_args(Args) -> [JSON].
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%% encode_arg(Args) -> JSON.
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encode_args(Args) ->
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[ encode_arg(A) || A <- Args ].
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encode_arg(#arg{id=Id,type=T}) ->
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[{<<"name">>,list_to_binary(encode_type(Id))},
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{<<"type">>,list_to_binary(encode_type(T))}].
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[{<<"name">>,encode_type(Id)},
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{<<"type">>,[encode_type(T)]}].
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%% encode_types(Types) -> [JSON].
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%% encode_type(Type) -> JSON.
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encode_types(Types) ->
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[ encode_type(T) || T <- Types ].
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encode_type(#tvar{name=N}) -> N;
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encode_type(#id{name=N}) -> N;
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encode_type(#con{name=N}) -> N;
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encode_type(#tvar{name=N}) -> encode_name(N);
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encode_type(#id{name=N}) -> encode_name(N);
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encode_type(#con{name=N}) -> encode_name(N);
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encode_type(#qid{names=Ns}) ->
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lists:join(".", Ns);
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encode_name(lists:join(".", Ns));
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encode_type(#qcon{names=Ns}) ->
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lists:join(".", Ns); %?
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encode_name(lists:join(".", Ns)); %?
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encode_type(#tuple_t{args=As}) ->
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Eas = encode_types(As),
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[$(,lists:join(",", Eas),$)];
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[{<<"tuple">>,Eas}];
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encode_type(#record_t{fields=Fs}) ->
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Efs = encode_types(Fs),
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[${,lists:join(",", Efs),$}];
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Efs = encode_fields(Fs),
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[{<<"record">>,Efs}];
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encode_type(#app_t{id=Id,fields=Fs}) ->
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Name = encode_type(Id),
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Efs = encode_types(Fs),
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[Name,"(",lists:join(",", Efs),")"];
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encode_type(#field_t{id=Id,type=T}) ->
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[encode_type(Id)," : ",encode_type(T)];
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[{Name,Efs}];
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encode_type(#variant_t{cons=Cs}) ->
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Ecs = encode_types(Cs),
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lists:join(" | ", Ecs);
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[{<<"variant">>,Ecs}];
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encode_type(#constr_t{con=C,args=As}) ->
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Ec = encode_type(C),
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Eas = encode_types(As),
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[Ec,$(,lists:join(", ", Eas),$)];
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[{Ec,Eas}];
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encode_type(#fun_t{args=As,type=T}) ->
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Eas = encode_types(As),
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Et = encode_type(T),
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[$(,lists:join(", ", Eas),") => ",Et].
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[{<<"function">>,[{<<"arguments">>,Eas},{<<"returns">>,Et}]}].
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encode_name(Name) ->
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list_to_binary(Name).
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%% encode_fields(Fields) -> [JSON].
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%% encode_field(Field) -> JSON.
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%% Encode a record field.
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encode_fields(Fs) ->
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[ encode_field(F) || F <- Fs ].
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encode_field(#field_t{id=Id,type=T}) ->
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[{<<"name">>,encode_type(Id)},
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{<<"type">>,[encode_type(T)]}].
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%% encode_typedef(TypeDef) -> JSON.
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encode_typedef(Type) ->
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Name = typedef_name(Type),
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Vars = typedef_vars(Type),
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Def = typedef_def(Type),
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[{<<"name">>, list_to_binary(Name)},
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[{<<"name">>, encode_name(Name)},
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{<<"vars">>, encode_tvars(Vars)},
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{<<"typedef">>, list_to_binary(encode_alias(Def))}].
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{<<"typedef">>, encode_alias(Def)}].
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encode_tvars(Vars) ->
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[ encode_tvar(V) || V <- Vars ].
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encode_tvar(#tvar{name=N}) ->
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[{<<"name">>, list_to_binary(N)}].
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[{<<"name">>, encode_name(N)}].
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encode_alias(#alias_t{type=T}) ->
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encode_type(T);
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encode_alias(A) -> encode_type(A).
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%% encode_stmt(Stmt) -> JSON.
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encode_stmt(E) ->
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encode_expr(E).
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%% encode_exprs(Exprs) -> [JSON].
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%% encode_expr(Expr) -> JSON.
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encode_exprs(Es) ->
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[ encode_expr(E) || E <- Es ].
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encode_expr(#id{name=N}) -> encode_name(N);
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encode_expr(#con{name=N}) -> encode_name(N);
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encode_expr(#qid{names=Ns}) ->
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encode_name(lists:join(".", Ns));
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encode_expr(#qcon{names=Ns}) ->
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encode_name(lists:join(".", Ns)); %?
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encode_expr(#typed{expr=E}) ->
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encode_expr(E);
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encode_expr(#bool{bool=B}) -> B;
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encode_expr(#int{value=V}) -> V;
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encode_expr(#string{bin=B}) -> B;
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encode_expr(#hash{hash=H}) -> H;
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encode_expr(#tuple{args=As}) ->
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Eas = encode_exprs(As),
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[{<<"tuple">>,Eas}];
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encode_expr(#list{args=As}) ->
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Eas = encode_exprs(As),
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[{<<"list">>,Eas}];
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encode_expr(#app{func=F,args=As}) ->
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Ef = encode_expr(F),
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Eas = encode_exprs(As),
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[{<<"apply">>,[{<<"function">>,Ef},
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{<<"arguments">>,Eas}]}];
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encode_expr({Op,_Ann}) ->
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list_to_binary(atom_to_list(Op)).
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%% decode(JSON) -> ContractString.
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%% Decode a JSON string and generate a suitable contract string which
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%% can be included in a contract definition. We decode into a map
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@ -160,42 +235,81 @@ decode(Json) ->
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list_to_binary(decode_contract(C)).
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decode_contract(#{<<"name">> := Name,
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<<"type_defs">> := _Ts,
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<<"type_defs">> := Ts,
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<<"functions">> := Fs}) ->
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["contract"," ",io_lib:format("~s", [Name])," =\n",
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[], %Don't include types yet.
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%% decode_tdefs(Ts),
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decode_tdefs(Ts),
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decode_funcs(Fs)].
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decode_funcs(Fs) -> [ decode_func(F) || F <- Fs ].
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decode_func(#{<<"name">> := <<"init">>}) -> [];
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decode_func(#{<<"name">> := Name,<<"arguments">> := As,<<"type">> := T}) ->
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decode_func(#{<<"name">> := Name,<<"arguments">> := As,<<"returns">> := T}) ->
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[" function"," ",io_lib:format("~s", [Name])," : ",
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decode_args(As)," => ",decode_type(T),$\n].
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decode_type(T) -> io_lib:format("~s", [T]).
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decode_args(As) ->
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Das = [ decode_arg(A) || A <- As ],
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[$(,lists:join(", ", Das),$)].
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decode_arg(#{<<"type">> := T}) -> decode_type(T).
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decode_arg(#{<<"type">> := [T]}) -> decode_type(T).
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decode_types(Ets) ->
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[ decode_type(Et) || Et <- Ets ].
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decode_type(#{<<"tuple">> := Ets}) ->
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Ts = decode_types(Ets),
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[$(,lists:join(",", Ts),$)];
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decode_type(#{<<"record">> := Efs}) ->
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Fs = decode_fields(Efs),
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[${,lists:join(",", Fs),$}];
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decode_type(#{<<"list">> := [Et]}) ->
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T = decode_type(Et),
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["list",$(,T,$)];
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decode_type(#{<<"map">> := Ets}) ->
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Ts = decode_types(Ets),
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["map",$(,lists:join(",", Ts),$)];
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decode_type(#{<<"variant">> := Ets}) ->
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Ts = decode_types(Ets),
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lists:join(" | ", Ts);
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decode_type(Econs) when is_map(Econs) -> %General constructor
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[{Ec,Ets}] = maps:to_list(Econs),
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C = decode_name(Ec),
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Ts = decode_types(Ets),
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[C,$(,lists:join(",", Ts),$)];
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decode_type(T) -> %Just raw names.
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decode_name(T).
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decode_name(En) ->
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binary_to_list(En).
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decode_fields(Efs) ->
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[ decode_field(Ef) || Ef <- Efs ].
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decode_field(#{<<"name">> := En,<<"type">> := [Et]}) ->
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Name = decode_name(En),
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Type = decode_type(Et),
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[Name," : ",Type].
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%% decode_tdefs(Json) -> [TypeString].
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%% Here we are only interested in the type definitions and ignore the
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%% aliases. We find them as they always have variants.
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decode_tdefs(Ts) -> [ decode_tdef(T) ||
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#{<<"typedef">> := #{<<"variant">> := _}} = T <- Ts
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].
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decode_tdef(#{<<"name">> := Name,<<"vars">> := Vs,<<"typedef">> := T}) ->
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[" datatype"," ",decode_name(Name),decode_tvars(Vs),
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" = ",decode_type(T),$\n].
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decode_tvars([]) -> []; %No tvars, no parentheses
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decode_tvars(Vs) ->
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Dvs = [ decode_tvar(V) || V <- Vs ],
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[$(,lists:join(", ", Dvs),$)].
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decode_tvar(#{<<"name">> := N}) -> io_lib:format("~s", [N]).
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%% To keep dialyzer happy and quiet.
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%% decode_tdefs(Ts) -> [ decode_tdef(T) || T <- Ts ].
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%%
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%% decode_tdef(#{<<"name">> := Name,<<"vars">> := Vs,<<"typedef">> := T}) ->
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%% [" type"," ",io_lib:format("~s", [Name]),decode_tvars(Vs),
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%% " = ",decode_type(T),$\n].
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%%
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%% decode_tvars([]) -> []; %No tvars, no parentheses
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%% decode_tvars(Vs) ->
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%% Dvs = [ decode_tvar(V) || V <- Vs ],
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%% [$(,lists:join(", ", Dvs),$)].
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%%
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%% decode_tvar(#{<<"name">> := N}) -> io_lib:format("~s", [N]).
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%%
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%% #contract{Ann, Con, [Declarations]}.
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contract_name(#contract{con=#con{name=N}}) -> N.
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@ -242,6 +356,9 @@ typedef_vars(#type_def{vars=Vars}) -> Vars.
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typedef_def(#type_def{typedef=Def}) -> Def.
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%% parse(ContractString, Options) -> {ok,AST}.
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%% Signal errors, the sophia compiler way. Sigh!
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parse(Text, Options) ->
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%% Try and return something sensible here!
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case aeso_parser:string(Text, Options) of
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@ -264,7 +381,7 @@ parse(Text, Options) ->
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end.
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parse_error(Pos, ErrorString) ->
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io:format("Error ~p ~p\n", [Pos,ErrorString]),
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%% io:format("Error ~p ~p\n", [Pos,ErrorString]),
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Error = io_lib:format("~s: ~s", [pos_error(Pos), ErrorString]),
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error({parse_errors, [Error]}).
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@ -5,41 +5,72 @@
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do_test() ->
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test_contract(1),
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test_contract(2).
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test_contract(2),
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test_contract(3).
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test_contract(N) ->
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{Contract,DecACI} = test_cases(N),
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{ok,Enc} = aeso_aci:encode(Contract),
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?assertEqual(DecACI, jsx:decode(Enc)).
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{Contract,MapACI,DecACI} = test_cases(N),
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{ok,JSON} = aeso_aci:encode(Contract),
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?assertEqual(MapACI, jsx:decode(JSON, [return_maps])),
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?assertEqual(DecACI, aeso_aci:decode(JSON)).
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test_cases(1) ->
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Contract = <<"contract C =\n"
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" function a(i : int) = i+1\n">>,
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DecodedACI = [{<<"contract">>,
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[{<<"name">>,<<"C">>},
|
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{<<"type_defs">>,[]},
|
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{<<"functions">>,
|
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[[{<<"name">>,<<"a">>},
|
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{<<"arguments">>,
|
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[[{<<"name">>,<<"i">>},{<<"type">>,<<"int">>}]]},
|
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{<<"type">>,<<"int">>},
|
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{<<"stateful">>,false}]]}]}],
|
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{Contract,DecodedACI};
|
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MapACI = #{<<"contract">> =>
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#{<<"name">> => <<"C">>,
|
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<<"type_defs">> => [],
|
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<<"functions">> =>
|
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[#{<<"name">> => <<"a">>,
|
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<<"arguments">> =>
|
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[#{<<"name">> => <<"i">>,
|
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<<"type">> => [<<"int">>]}],
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<<"returns">> => <<"int">>,
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<<"stateful">> => false}]}},
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DecACI = <<"contract C =\n"
|
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" function a : (int) => int\n">>,
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{Contract,MapACI,DecACI};
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|
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test_cases(2) ->
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Contract = <<"contract C =\n"
|
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" type allan = int\n"
|
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" function a(i : allan) = i+1\n">>,
|
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DecodedACI = [{<<"contract">>,
|
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[{<<"name">>,<<"C">>},
|
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{<<"type_defs">>,
|
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[[{<<"name">>,<<"allan">>},
|
||||
{<<"vars">>,[]},
|
||||
{<<"typedef">>,<<"int">>}]]},
|
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{<<"functions">>,
|
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[[{<<"name">>,<<"a">>},
|
||||
{<<"arguments">>,
|
||||
[[{<<"name">>,<<"i">>},{<<"type">>,<<"int">>}]]},
|
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{<<"type">>,<<"int">>},
|
||||
{<<"stateful">>,false}]]}]}],
|
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{Contract,DecodedACI}.
|
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MapACI = #{<<"contract">> =>
|
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#{<<"name">> => <<"C">>,
|
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<<"type_defs">> =>
|
||||
[#{<<"name">> => <<"allan">>,
|
||||
<<"typedef">> => <<"int">>,
|
||||
<<"vars">> => []}],
|
||||
<<"functions">> =>
|
||||
[#{<<"arguments">> =>
|
||||
[#{<<"name">> => <<"i">>,
|
||||
<<"type">> => [<<"int">>]}],
|
||||
<<"name">> => <<"a">>,
|
||||
<<"returns">> => <<"int">>,
|
||||
<<"stateful">> => false}]}},
|
||||
DecACI = <<"contract C =\n"
|
||||
" function a : (int) => int\n">>,
|
||||
{Contract,MapACI,DecACI};
|
||||
test_cases(3) ->
|
||||
Contract = <<"contract C =\n"
|
||||
" datatype bert('a) = Bin('a)\n"
|
||||
" function a(i : bert(string)) = 1\n">>,
|
||||
MapACI = #{<<"contract">> =>
|
||||
#{<<"functions">> =>
|
||||
[#{<<"arguments">> =>
|
||||
[#{<<"name">> => <<"i">>,
|
||||
<<"type">> =>
|
||||
[#{<<"C.bert">> => [<<"string">>]}]}],
|
||||
<<"name">> => <<"a">>,<<"returns">> => <<"int">>,
|
||||
<<"stateful">> => false}],
|
||||
<<"name">> => <<"C">>,
|
||||
<<"type_defs">> =>
|
||||
[#{<<"name">> => <<"bert">>,
|
||||
<<"typedef">> =>
|
||||
#{<<"variant">> =>
|
||||
[#{<<"Bin">> => [<<"'a">>]}]},
|
||||
<<"vars">> => [#{<<"name">> => <<"'a">>}]}]}},
|
||||
DecACI = <<"contract C =\n"
|
||||
" datatype bert('a) = Bin('a)\n"
|
||||
" function a : (C.bert(string)) => int\n">>,
|
||||
{Contract,MapACI,DecACI}.
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user