private string EmitOutputBase(DisplayVerb display, WriteStatement writeStatement)
{
string r = "";
string className = "__CobolProgram";
DataDescription dde = null;
//Build the format string and param types list...
string fmt = "";
int objects = 0;
ArrayList sources;
if (display != null)
{
sources = display.Sources;
}
else
{
dde = GetDDEByName(writeStatement.RecordName.Name);
if (dde == null)
{
Console.WriteLine("dde is NULL");
}
r += " " + ILAddress(1) + "ldarg.0\n";
r += " " + ILAddress(5);
r += "ldfld class [mscorlib]System.IO.StreamWriter " + className + "::_writer_" + ILIdentifier(dde.FSDE.Name.Name) + "\n";
sources = new ArrayList();
if (writeStatement.RecordName != null)
{
sources.Add(writeStatement.RecordName);
}
//TODO: What should be done when there are no FROM identifiers?
}
for (int i = 0; i < sources.Count; i++)
{
Source source = sources[i] as Source;
if (IsGroup(source))
{
Identifier id = source as Identifier;
List <DataDescription> ddes = ListElements(id.Definition);
foreach (DataDescription dd in ddes)
{
fmt += "{" + objects + ",-" + dd.Size + "}";
objects++;
}
}
else
{
//TODO:
//If the source specifies a substring, then that size should be used in the
//brackets rather than the definition's size. Simply using the definition's
//size breaks the 99 bottles output because the buffer variable is large
//and we only want one character from it.
//See testdisp.cbl and its output.
if (source.GetType() == typeof(Identifier))
{
Identifier id = source as Identifier;
if (id.UsesSubstring)
{
Console.WriteLine("UsesSubstring = true : " + id.Name);
fmt += "{" + objects + "}";
}
else
{
//Console.WriteLine("UsesSubstring = false : "+id.Name);
fmt += "{" + objects + ",-" + id.Definition.Size + "}";
}
}
else
{
fmt += "{" + objects + "}";
}
objects++;
}
}
//Load the format string...
r += " " + ILAddress(5);
r += "ldstr \"" + fmt + "\"\n";
//Create an array
r += " " + ILAddress(5);
r += "ldc.i4 " + objects + "\n";
r += " " + ILAddress(5);
r += "newarr [mscorlib]System.Object\n";
//Load the values...
int obj = 0;
foreach (Source source in sources)
{
if (IsGroup(source))
{
Identifier id = source as Identifier;
//Plan:
// 1. Load a format string based on all of the group element sizes (and types?)
// 2. Load each element
// 3. String.Format
// 4. Build an object array of the elements
// 5. Use the format string and array in WriteLine
List <DataDescription> ddes = ListElements(id.Definition);
foreach (DataDescription dd in ddes)
{
Identifier tmp = new Identifier();
tmp.Name = dd.Name;
tmp.Definition = dd;
r += " " + ILAddress(1) + "dup\n";
r += " " + ILAddress(5) + "ldc.i4 " + obj + "\n";
r += EmitLoadSource(tmp as Source, false, true);
r += " " + ILAddress(1) + "stelem.ref\n";
obj++;
}
}
else
{
r += " " + ILAddress(1) + "dup\n";
r += " " + ILAddress(5) + "ldc.i4 " + obj + "\n";
r += EmitLoadSource(source, false, true);
r += " " + ILAddress(1) + "stelem.ref\n";
obj++;
}
}
if (display != null)
{
//Call Write or WriteLine...
r += " " + ILAddress(5);
string parms = "string, object[]";
if (display.NoAdvancing)
{
r += "call void class [mscorlib]System.Console::Write(" + parms + ")";
}
else
{
r += "call void class [mscorlib]System.Console::WriteLine(" + parms + ")";
}
r += "\n";
}
else
{
//Write...
r += " " + ILAddress(5);
r += "callvirt instance void class [mscorlib]System.IO.StreamWriter::WriteLine(string,object[])\n";
//Flush...
r += " " + ILAddress(1) + "ldarg.0\n";
r += " " + ILAddress(5);
r += "ldfld class [mscorlib]System.IO.StreamWriter " + className + "::_writer_" + ILIdentifier(dde.FSDE.Name.Name) + "\n";
r += " " + ILAddress(5);
r += "callvirt instance void class [mscorlib]System.IO.StreamWriter::Flush()\n";
}
return(r);
}
private string EmitDisplayVerb(DisplayVerb display)
{
return(EmitOutputBase(display, null));
}