private void ChunkDeclaration()
{
Expect(TokenType.Identifier);
string chunkIdentifier = scanner.CurrValue;
if (chunks.ContainsKey(chunkIdentifier))
{
Error("Chunk '{0}' already declared.", chunkIdentifier);
}
scanner.Scan();
// Reset variables:
variables.Clear();
currVarIndex = 0;
DeclareVariable("chunksize", InternalType.Integer);
// Clear code:
Array.Clear(code, 0, code.Length);
codePosition = 0;
Statement();
EmitOpcode(Opcodes.END);
byte[] chunkCode = new byte[codePosition];
Array.Copy(code, chunkCode, codePosition);
chunks.Add(chunkIdentifier, chunkCode);
}
public List <ChunkSpecValue> Interpret(Chunk chunk)
{
string id = rxReplaceSpecialChars.Replace(chunk.ChunkTypeId, "_");
specValues.Clear();
if (!specs.ContainsKey(id))
{
return(specValues);
}
variables.Clear();
AddVariable(0, InternalType.Integer, (long)(chunk.Size));
stack.Clear();
code = specs[id];
codePos = 0;
using (ChunkStream chunkStream = chunk.GetStream())
{
using (reader = new BinReader(chunkStream))
{
byte opcode;
do
{
opcode = code[codePos++];
Debug.Assert(opcodes.ContainsKey(opcode));
opcodes[opcode]();
//Trace.TraceInformation("Opcode {0}", opcodes[opcode].Method.Name);
} while (opcode != Opcodes.END);
}
}
return(specValues);
}
