public List <byte> Parse(string code, string workingDirectory)
{
ParserState state = new ParserState(this);
state.WorkingDirectory = workingDirectory;
m_Lines = Common.SplitString(code, "\n");
m_CurrentLine = 0;
// pass 1: assemble the assembly file into machine code
for (int i = 0; i < m_Lines.Count; i++)
{
string line = m_Lines[i];
m_CurrentLine++;
// trim whitespace at tail/end and discard empty lines
string stripped = StripComments(line);
if (string.IsNullOrEmpty(stripped))
{
// do nothing, empty line
}
else
{
string currentLine = stripped.Trim();
if (currentLine.Length == 0)
{
continue;
}
try
{
AssembleLine(m_CurrentLine, currentLine, state);
}
catch (Exception ex)
{
AddMessageLine($"Line {m_CurrentLine} ({m_Lines[m_CurrentLine].Trim()}): {ex.Message}");
ErrorLine = m_CurrentLine;
return(null);
}
}
}
// check for open scopes...
Scopes.Scope openScope;
if (state.Scopes.TryGetOpenScope(out openScope))
{
AddMessageLine($"Unclosed scope beginning at line {openScope.StartLine}");
ErrorLine = openScope.StartLine;
return(null);
}
// pass 2: update all labels.
try
{
state.UpdateLabelReferences();
}
catch (Exception ex)
{
AddMessageLine($"Error while updating labels. {ex.Message}");
ErrorLine = m_CurrentLine;
return(null);
}
// return the assembled code!
return(state.Code);
}
public List<byte> Parse(string code, string workingDirectory)
{
ParserState state = new ParserState(this);
state.WorkingDirectory = workingDirectory;
m_Lines = Common.SplitString(code, "\n");
m_CurrentLine = 0;
// pass 1: assemble the assembly file into machine code
for (int i = 0; i < m_Lines.Count; i++)
{
string line = m_Lines[i];
m_CurrentLine++;
// trim whitespace at tail/end and discard empty lines
string stripped = StripComments(line);
if (string.IsNullOrEmpty(stripped))
{
// do nothing, empty line
}
else
{
string currentLine = stripped.Trim();
if (currentLine.Length == 0)
continue;
try
{
AssembleLine(m_CurrentLine, currentLine, state);
}
catch (Exception ex)
{
AddMessageLine($"Line {m_CurrentLine} ({m_Lines[m_CurrentLine].Trim()}): {ex.Message}");
ErrorLine = m_CurrentLine;
return null;
}
}
}
// check for open scopes...
Scopes.Scope openScope;
if (state.Scopes.TryGetOpenScope(out openScope))
{
AddMessageLine($"Unclosed scope beginning at line {openScope.StartLine}");
ErrorLine = openScope.StartLine;
return null;
}
// pass 2: update all labels.
try
{
state.UpdateLabelReferences();
}
catch (Exception ex)
{
AddMessageLine($"Error while updating labels. {ex.Message}");
ErrorLine = m_CurrentLine;
return null;
}
// return the assembled code!
return state.Code;
}