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368 | --
-- Copyright (C) 2020-2023, AdaCore
--
-- SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
--
with Ada.Calendar;
with Ada.Streams.Stream_IO;
with Interfaces;
with VSS.Command_Line;
with VSS.JSON.Pull_Readers.Simple;
with VSS.JSON.Pull_Readers.JSON5;
with VSS.JSON.Streams;
with VSS.Strings.Conversions;
with VSS.Strings.Formatters.Booleans;
with VSS.Strings.Formatters.Generic_Enumerations;
with VSS.Strings.Formatters.Strings;
with VSS.Strings.Templates;
with VSS.String_Vectors;
with VSS.Text_Streams.File_Output;
with VSS.Text_Streams.Standards;
with Tests_Text_Streams;
procedure Test_JSON_Pull_Reader is
-- use all type VSS.JSON.Pull_Readers.JSON_Event_Kind;
use all type VSS.JSON.Pull_Readers.JSON_Reader_Error;
package Command_Line is
procedure Initialize;
end Command_Line;
package Options is
Performance : Boolean := False;
Incremental : Boolean := False;
JSON5 : Boolean := False;
Input_File_Name : VSS.Strings.Virtual_String;
Output_File_Name : VSS.Strings.Virtual_String;
end Options;
-----------------
-- Command_Lne --
-----------------
package body Command_Line is
Incremental_Option : constant VSS.Command_Line.Binary_Option :=
(Short_Name => <>,
Long_Name => "incremental",
Description => "Activate incremental parsing mode");
Performance_Option : constant VSS.Command_Line.Binary_Option :=
(Short_Name => <>,
Long_Name => "performance",
Description => "Report performance statistic");
JSON5_Option : constant VSS.Command_Line.Binary_Option :=
(Short_Name => <>,
Long_Name => "json5",
Description => "Enable JSON5");
Input_File_Option : constant VSS.Command_Line.Positional_Option :=
(Name => "input",
Description => "Name of the input file");
Output_File_Option : constant VSS.Command_Line.Positional_Option :=
(Name => "output",
Description => "Name of the input file");
procedure Register_Switches;
----------------
-- Initialize --
----------------
procedure Initialize is
Positionals : VSS.String_Vectors.Virtual_String_Vector;
begin
Register_Switches;
VSS.Command_Line.Process;
Options.Incremental :=
VSS.Command_Line.Is_Specified (Incremental_Option);
Options.Performance :=
VSS.Command_Line.Is_Specified (Performance_Option);
Options.JSON5 := VSS.Command_Line.Is_Specified (JSON5_Option);
Positionals := VSS.Command_Line.Positional_Arguments;
if Positionals.Length = 0 then
VSS.Command_Line.Report_Error ("Input file not specified");
end if;
if Positionals.Length = 1 then
VSS.Command_Line.Report_Error ("Output file not specified");
end if;
Options.Input_File_Name :=
VSS.Command_Line.Value (Input_File_Option);
Options.Output_File_Name :=
VSS.Command_Line.Value (Output_File_Option);
end Initialize;
-----------------------
-- Register_Switches --
-----------------------
procedure Register_Switches is
begin
VSS.Command_Line.Add_Option (Incremental_Option);
VSS.Command_Line.Add_Option (Performance_Option);
VSS.Command_Line.Add_Option (JSON5_Option);
VSS.Command_Line.Add_Option (Input_File_Option);
VSS.Command_Line.Add_Option (Output_File_Option);
end Register_Switches;
end Command_Line;
package JSON_Number_Kind_Formatters is
new VSS.Strings.Formatters.Generic_Enumerations
(VSS.JSON.JSON_Number_Kind);
package JSON_Stream_Element_Kind_Formatters is
new VSS.Strings.Formatters.Generic_Enumerations
(VSS.JSON.Streams.JSON_Stream_Element_Kind);
package JSON_Reader_Error_Formatters is
new VSS.Strings.Formatters.Generic_Enumerations
(VSS.JSON.Pull_Readers.JSON_Reader_Error);
Input : aliased Tests_Text_Streams.Memory_UTF8_Input_Stream;
Count : Natural := 0;
Output : VSS.Text_Streams.File_Output.File_Output_Text_Stream;
Error : VSS.Text_Streams.Output_Text_Stream'Class
renames VSS.Text_Streams.Standards.Standard_Error;
begin
Command_Line.Initialize;
Output.Create (Options.Output_File_Name);
declare
File : Ada.Streams.Stream_IO.File_Type;
Aux : Ada.Streams.Stream_Element_Array (1 .. 1_024);
Last : Ada.Streams.Stream_Element_Offset;
begin
Ada.Streams.Stream_IO.Open
(File,
Ada.Streams.Stream_IO.In_File,
VSS.Strings.Conversions.To_UTF_8_String
(Options.Input_File_Name),
"text_translation=no");
while not Ada.Streams.Stream_IO.End_Of_File (File) loop
Ada.Streams.Stream_IO.Read (File, Aux, Last);
for J in Aux'First .. Last loop
Input.Buffer.Append (Aux (J));
end loop;
end loop;
Ada.Streams.Stream_IO.Close (File);
end;
declare
use type Ada.Calendar.Time;
function Setup_Reader
return VSS.JSON.Pull_Readers.JSON_Pull_Reader'Class;
------------------
-- Setup_Reader --
------------------
function Setup_Reader
return VSS.JSON.Pull_Readers.JSON_Pull_Reader'Class is
begin
Input.Set_Incremental (Options.Incremental);
if Options.JSON5 then
return Result : VSS.JSON.Pull_Readers.JSON5.JSON5_Pull_Reader do
Result.Set_Stream (Input'Unchecked_Access);
end return;
else
return Result :
VSS.JSON.Pull_Readers.Simple.JSON_Simple_Pull_Reader
do
Result.Set_Stream (Input'Unchecked_Access);
end return;
end if;
end Setup_Reader;
Reader : VSS.JSON.Pull_Readers.JSON_Pull_Reader'Class :=
Setup_Reader;
Start : constant Ada.Calendar.Time := Ada.Calendar.Clock;
Success : Boolean := True;
begin
while not Reader.At_End loop
Reader.Read_Next;
case Reader.Element_Kind is
when VSS.JSON.Streams.Invalid =>
if Reader.Error /= Premature_End_Of_Document then
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} {} ""{}""").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
JSON_Reader_Error_Formatters.Image (Reader.Error),
VSS.Strings.Formatters.Strings.Image
(Reader.Error_Message)),
Success);
if Reader.Error /= Not_Valid then
raise Program_Error;
end if;
elsif not Options.Incremental then
raise Program_Error;
else
Count := Count + 1;
if Count > 1_000 then
raise Program_Error;
end if;
end if;
when VSS.JSON.Streams.Key_Name =>
Count := 0;
if not Options.Performance then
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} ""{}""").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
VSS.Strings.Formatters.Strings.Image
(Reader.Key_Name)),
Success);
end if;
when VSS.JSON.Streams.String_Value =>
Count := 0;
if not Options.Performance then
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} ""{}""").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
VSS.Strings.Formatters.Strings.Image
(Reader.String_Value)),
Success);
end if;
when VSS.JSON.Streams.Number_Value =>
Count := 0;
if not Options.Performance then
case Reader.Number_Value.Kind is
when VSS.JSON.None =>
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} {} {}").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
JSON_Number_Kind_Formatters.Image
(Reader.Number_Value.Kind),
VSS.Strings.Formatters.Strings.Image
(Reader.Number_Value.String_Value)),
Success);
when VSS.JSON.JSON_Integer =>
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} {} {} {}").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
JSON_Number_Kind_Formatters.Image
(Reader.Number_Value.Kind),
VSS.Strings.Formatters.Strings.Image
(Reader.Number_Value.String_Value),
VSS.Strings.Formatters.Strings.Image
(VSS.Strings.To_Virtual_String
(Interfaces.Integer_64'Wide_Wide_Image
(Reader.Number_Value.Integer_Value)))),
Success);
when VSS.JSON.JSON_Float =>
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} {} {} {}").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
JSON_Number_Kind_Formatters.Image
(Reader.Number_Value.Kind),
VSS.Strings.Formatters.Strings.Image
(Reader.Number_Value.String_Value),
VSS.Strings.Formatters.Strings.Image
(VSS.Strings.To_Virtual_String
(Interfaces.IEEE_Float_64'Wide_Wide_Image
(Reader.Number_Value.Float_Value)))),
Success);
when VSS.JSON.Out_Of_Range =>
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} {} {}").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
JSON_Number_Kind_Formatters.Image
(Reader.Number_Value.Kind),
VSS.Strings.Formatters.Strings.Image
(Reader.Number_Value.String_Value)),
Success);
end case;
end if;
when VSS.JSON.Streams.Boolean_Value =>
Count := 0;
if not Options.Performance then
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{} {}").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind),
VSS.Strings.Formatters.Booleans.Image
(Reader.Boolean_Value)),
Success);
end if;
when others =>
Count := 0;
if not Options.Performance then
Output.Put_Line
(VSS.Strings.Templates.To_Virtual_String_Template
("{}").Format
(JSON_Stream_Element_Kind_Formatters.Image
(Reader.Element_Kind)),
Success);
end if;
end case;
end loop;
if Options.Performance then
Error.Put_Line
(VSS.Strings.To_Virtual_String
(Duration'Wide_Wide_Image (Ada.Calendar.Clock - Start)),
Success);
end if;
end;
Output.Close;
end Test_JSON_Pull_Reader;
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