-module(gwr@parser@module_parser).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([parse_global/1, parse_memory/1, parse_export/1]).

-spec parse_global(gwr@parser@binary_reader:binary_reader()) -> {ok,
        {gwr@parser@binary_reader:binary_reader(), gwr@syntax@module:global()}} |
    {error, binary()}.
parse_global(Reader) ->
    gleam@result:'try'(
        gwr@parser@types_parser:parse_global_type(Reader),
        fun(_use0) ->
            {Reader@1, Global_type} = _use0,
            gleam@result:'try'(
                gwr@parser@instruction_parser:parse_expression(Reader@1),
                fun(_use0@1) ->
                    {Reader@2, Expression} = _use0@1,
                    {ok, {Reader@2, {global, Global_type, Expression}}}
                end
            )
        end
    ).

-spec parse_memory(gwr@parser@binary_reader:binary_reader()) -> {ok,
        {gwr@parser@binary_reader:binary_reader(), gwr@syntax@module:memory()}} |
    {error, binary()}.
parse_memory(Reader) ->
    gleam@result:'try'(
        gwr@parser@types_parser:parse_limits(Reader),
        fun(_use0) ->
            {Reader@1, Limits} = _use0,
            {ok, {Reader@1, {memory, Limits}}}
        end
    ).

-spec parse_export(gwr@parser@binary_reader:binary_reader()) -> {ok,
        {gwr@parser@binary_reader:binary_reader(), gwr@syntax@module:export()}} |
    {error, binary()}.
parse_export(Reader) ->
    gleam@result:'try'(
        gwr@parser@value_parser:parse_name(Reader),
        fun(_use0) ->
            {Reader@1, Export_name} = _use0,
            gleam@result:'try'(
                case gwr@parser@binary_reader:read(Reader@1, 1) of
                    {ok, {Reader@2, <<Id>>}} when Id =:= 16#00 ->
                        gleam@result:'try'(
                            gwr@parser@value_parser:parse_unsigned_leb128_integer(
                                Reader@2
                            ),
                            fun(_use0@1) ->
                                {Reader@3, Index} = _use0@1,
                                {ok,
                                    {Reader@3,
                                        {export,
                                            Export_name,
                                            {function_export, Index}}}}
                            end
                        );

                    {ok, {Reader@4, <<Id@1>>}} when Id@1 =:= 16#01 ->
                        gleam@result:'try'(
                            gwr@parser@value_parser:parse_unsigned_leb128_integer(
                                Reader@4
                            ),
                            fun(_use0@2) ->
                                {Reader@5, Index@1} = _use0@2,
                                {ok,
                                    {Reader@5,
                                        {export,
                                            Export_name,
                                            {table_export, Index@1}}}}
                            end
                        );

                    {ok, {Reader@6, <<Id@2>>}} when Id@2 =:= 16#02 ->
                        gleam@result:'try'(
                            gwr@parser@value_parser:parse_unsigned_leb128_integer(
                                Reader@6
                            ),
                            fun(_use0@3) ->
                                {Reader@7, Index@2} = _use0@3,
                                {ok,
                                    {Reader@7,
                                        {export,
                                            Export_name,
                                            {memory_export, Index@2}}}}
                            end
                        );

                    {ok, {Reader@8, <<Id@3>>}} when Id@3 =:= 16#03 ->
                        gleam@result:'try'(
                            gwr@parser@value_parser:parse_unsigned_leb128_integer(
                                Reader@8
                            ),
                            fun(_use0@4) ->
                                {Reader@9, Index@3} = _use0@4,
                                {ok,
                                    {Reader@9,
                                        {export,
                                            Export_name,
                                            {global_export, Index@3}}}}
                            end
                        );

                    {ok, {_, <<Unknown>>}} ->
                        {error,
                            <<<<"gwr/parser/module_parser.parse_export: unexpected export id \""/utf8,
                                    (gleam@int:to_string(Unknown))/binary>>/binary,
                                "\""/utf8>>};

                    {error, Reason} ->
                        {error,
                            <<"gwr/parser/module_parser.parse_export: couldn't read export id: "/utf8,
                                Reason/binary>>};

                    _ ->
                        {error,
                            <<"gwr/parser/module_parser.parse_export: unknown error reading export id"/utf8>>}
                end,
                fun(_use0@5) ->
                    {Reader@10, Export} = _use0@5,
                    {ok, {Reader@10, Export}}
                end
            )
        end
    ).