public Program Import(TextReader input, ImportErrorList errors)
{
try
{
// Do main import
ProgramBuilder builder = ImportBuilder(input, errors);
// Exit if there were errors
if (errors.ErrorCount > 0)
return null;
else if (builder == null)
throw new ImportException("Unknown import error");
// Create program
Program program = builder.CreateProgram(Processor, KeepDebugInfo);
// Validate program
ProgramValidator.Validate(program, errors);
return (errors.ErrorCount == 0) ? program : null;
}
catch (ImportException e)
{
// Add to error list
errors.AddError(e.Message);
return null;
}
}
protected override ProgramBuilder ImportBuilder(TextReader input, ImportErrorList errors)
{
// Create new importer state and forward to that
var state = new AssemblyImporterState(input, errors);
state.ParseTopLevel();
return state.Builder;
}
public FrmViewError(ImportErrorList Err)
{
InitializeComponent();
this.DS = new DataSet("a");
DataTable T = new DataTable("aa");
T.Columns.Add("tipo", typeof(string));
T.Columns.Add("messaggio", typeof(string));
btnSave.Enabled = (T.Rows.Count > 0);
T.Columns[0].Caption = "Errore";
HelpForm.SetDataGrid(gridCheck, T);
}
protected override ProgramBuilder ImportBuilder(TextReader input, ImportErrorList errors)
{
// Create disassembler and builder
InstructionDisassembler disasm = InstructionDisassembler.Create(Processor);
ProgramBuilder builder = new ProgramBuilder();
// Disassemble each instruction and add to the builder
for (int lineNumber = 1; ; lineNumber++)
{
string line = input.ReadLine();
// Eof?
if (line == null)
break;
// Parse as hex
int instructionInt;
if (!int.TryParse(line, NumberStyles.HexNumber, null, out instructionInt))
{
// Fail fast here
errors.AddError("Line is not a valid hex string", lineNumber);
return null;
}
// Try to disassemble and add instruction
try
{
builder.Add(disasm.Disassemble(instructionInt));
}
catch (ImportException e)
{
// Report error
errors.AddError(e.Message, lineNumber);
}
}
return builder;
}
public Visitor(Program program, ImportErrorList errors)
{
this.program = program;
this.errors = errors;
}
/// <summary>
/// Validates the given program
/// </summary>
/// <param name="program">program to validate</param>
/// <param name="errors">error list to add any errors to</param>
public static void Validate(Program program, ImportErrorList errors)
{
// Visit all the instructions with the validator
new Visitor(program, errors).VisitAll();
}
/// <summary>
/// Creates a new AssemblyImporter state
/// </summary>
/// <param name="input">input stream</param>
/// <param name="errors">error list</param>
public AssemblyImporterState(TextReader input, ImportErrorList errors)
{
this.errorList = errors;
this.tokenizer = new AssemblyTokenizer(input);
}
/// <summary> /// Imports a program from the given reader /// </summary> /// <param name="input">input reader</param> /// <param name="errors">error list to write any errors to</param> /// <returns>the program builder containing the program's data</returns> /// <exception cref="ImportException">if thrown will be converted to an ImportError</exception> /// <remarks> /// An import failiure is marked by returning null or having any errors in the list /// </remarks> protected abstract ProgramBuilder ImportBuilder(TextReader input, ImportErrorList errors);
