private FirstPassResult HandleCodeFirstPass(
IExpression <T> expression,
AssemblyContext <T> assemblyContext)
{
Code <T> code = (Code <T>)expression;
if (code.IsEmpty)
{
return(FirstPassResult.Invalid());
}
if (HandleBuiltInCode(code, assemblyContext, false))
{
return(FirstPassResult.Invalid());
}
var paramTypes = code.Parameters.Select(EAType.GetType).ToArray();
var templateError = storer.FindTemplate(code.CodeName.Name, paramTypes);
if (templateError.CausedError)
{
assemblyContext.AddError(code, templateError);
return(FirstPassResult.Invalid());
}
else
{
var template = templateError.Result;
int oldOffset = assemblyContext.CurrentOffset;
assemblyContext.CurrentOffset += template.GetLengthBytes(code.Parameters);
return(FirstPassResult.Valid(code, oldOffset, template));
}
}
private IEnumerable <KeyValuePair <INamed <string>, string[]> > FirstPass(IPositionableInputStream input,
Context assemblyContext, ILog log)
{
while (true)
{
string line = input.ReadLine();
if (line == null)
{
break;
}
string[] code = Nintenlord.Utility.Parser.SplitToParameters(line);
if (code.Length > 0)
{
if (code[0].EndsWith(":"))
{
code = HandleLabels(input, assemblyContext, log, code);
}
if (code.Length == 0)
{
continue;
}
IBuiltInCode builtIn;
if (buildInCodes.TryGetValue(code[0], out builtIn))
{
string error;
if (builtIn.Matches("Code " + code[0], code.Length - 1, out error))
{
var causedError = builtIn.FirstPass(code, assemblyContext);
if (causedError)
{
log.AddError(input.GetErrorString(causedError.ErrorMessage));
}
yield return(new KeyValuePair <INamed <string>, string[]>(builtIn, code));
}
else
{
log.AddError(input.GetErrorString(error));
}
}
else
{
ICodeTemplate template = codeStorage.FindTemplate(code);
if (template != null)
{
if (assemblyContext.Offset % template.OffsetMod != 0)
{
log.AddError(input.GetErrorString(
string.Format(
"Code {0}'s offset {1} is not divisible by {2}",
template.Name,
assemblyContext.Offset,
template.OffsetMod
)));
}
assemblyContext.Offset += template.GetLengthBytes(code);
yield return(new KeyValuePair <INamed <string>, string[]>(template, code));
}
else
{
log.AddError(input.GetErrorString(string.Format(
"No code named {0} with {1} parameters found",
code[0],
code.Length - 1
)));
}
}
}
}
}