public static void Reset()
{
StaticTypeReferences.SegmentLookup = new Dictionary<string, bool>(16)
{
{ "NONE", true }
};
StaticTypeReferences.StreamClassName = null;
StaticTypeReferences.Stream = null;
StaticTypeReferences.StreamExpression = null;
StaticTypeReferences.Stream_InSByteRange = null;
StaticTypeReferences.Stream_InShortRange = null;
StaticTypeReferences.AssemblerClassName = null;
StaticTypeReferences.Assembler = null;
StaticTypeReferences.AssemblerExpression = null;
StaticTypeReferences.InstructionClassName = null;
StaticTypeReferences.Instruction = null;
StaticTypeReferences.InstructionExpression = null;
StaticTypeReferences.PrefixClassName = null;
StaticTypeReferences.Prefix = null;
StaticTypeReferences.PrefixExpression = null;
StaticTypeReferences.InstructionFormClassName = null;
StaticTypeReferences.InstructionForm = null;
StaticTypeReferences.InstructionFormExpression = null;
StaticTypeReferences.AssemblySyntaxClassName = null;
StaticTypeReferences.AssemblySyntax = null;
StaticTypeReferences.AssemblySyntaxExpression = null;
StaticTypeReferences.SegmentClassName = null;
StaticTypeReferences.Segment = null;
StaticTypeReferences.SegmentExpression = null;
}
public CodeExpression GetExpression(InstructionForm frm, int argIdx, WriteOperation wrOp)
{
int curIdx = 0;
Token tok = toks[curIdx];
if (tok.Type != TokenType.Identifier)
throw new Exception("Expected an identifier!");
if (tok.Value == "ToString")
{
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.LParen)
throw new Exception("Expected an opening parenthesis!");
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Identifier)
throw new Exception("Expected an identifier for the expression to convert to a string!");
CodeExpression ldExpr = GetExpressionFromIdentifier(tok.Value, frm, argIdx, wrOp);
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.RParen)
throw new Exception("Expected the closing parenthesis!");
curIdx++;
return new CodeMethodInvokeExpression(
ldExpr,
"ToString"
);
}
else if (tok.Value == "DirectCast")
{
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.LParen)
throw new Exception("Expected an opening parenthesis!");
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Identifier)
throw new Exception("Expected an identifier representing the argument to cast!");
CustomInstructionArgParameter param;
if (!ParentArg.Parameters.TryGetValue(tok.Value, out param))
throw new Exception("Unknown parameter '" + tok.Value + "'!");
CodeExpression argLoadExpression = param.GetLoadExpression(frm, argIdx);
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Comma)
throw new Exception("Expected a comma before the destination type!");
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Identifier)
throw new Exception("Expected an identifier representing the type to cast to!");
CodeTypeReference destType;
switch(tok.Value.ToLower())
{
case "byte":
destType = StaticTypeReferences.Byte;
break;
case "sbyte":
destType = StaticTypeReferences.SByte;
break;
case "ushort":
destType = StaticTypeReferences.UShort;
break;
case "short":
destType = StaticTypeReferences.Short;
break;
case "uint":
destType = StaticTypeReferences.UInt;
break;
case "int":
destType = StaticTypeReferences.Int;
break;
case "ulong":
destType = StaticTypeReferences.ULong;
break;
case "long":
destType = StaticTypeReferences.Long;
break;
default:
destType = new CodeTypeReference(tok.Value);
break;
}
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.RParen)
throw new Exception("Expected closing parenthesis!");
curIdx++;
return new CodeCastExpression(
destType,
argLoadExpression
);
}
else
{
CodeExpression sourceExpression;
bool NamedArgNeedsCast = false;
if (tok.Value == "Stream")
{
sourceExpression = StaticTypeReferences.Emit_StreamArg;
}
else
{
if (tok.Value == "BitPatterns")
NamedArgNeedsCast = true;
sourceExpression = new CodeTypeReferenceExpression(tok.Value);
}
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Dot)
throw new Exception("Expected a dot!");
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Identifier)
throw new Exception("Expected an identifier!");
CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression(
sourceExpression,
NamedArgNeedsCast ? BitPatternRegistry.GetPattern(tok.Value).Name : tok.Value
);
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.LParen)
throw new Exception("Expected an opening parenthesis!");
curIdx++;
List<CodeExpression> parms = new List<CodeExpression>(8);
tok = toks[curIdx];
bool expectsAnotherArg = true;
while (tok.Type != TokenType.RParen)
{
if (!expectsAnotherArg)
throw new Exception("Didn't expect another arg!");
switch (tok.Type)
{
case TokenType.Identifier:
parms.Add(GetExpressionFromIdentifier(tok.Value, frm, argIdx, wrOp, NamedArgNeedsCast));
break;
case TokenType.Number:
if (tok.NumberValue.Format == NumberFormat.Decimal)
{
parms.Add(new CodePrimitiveExpression((int)tok.NumberValue.Value));
}
else
{
parms.Add(new CodePrimitiveExpression(tok.NumberValue.Value));
}
break;
default:
throw new Exception("Unknown token type!");
}
curIdx++;
tok = toks[curIdx];
if (tok.Type != TokenType.Comma)
{
expectsAnotherArg = false;
}
else
{
curIdx++;
tok = toks[curIdx];
}
}
if (expectsAnotherArg)
throw new Exception("Expected another arg!");
return new CodeMethodInvokeExpression(
methodRef,
parms.ToArray()
);
}
}
public static void InitializeTypes()
{
StaticTypeReferences.Stream = new CodeTypeReference(StreamClassName);
StaticTypeReferences.StreamExpression = new CodeTypeReferenceExpression(Stream);
StaticTypeReferences.Stream_InSByteRange = new CodeMethodReferenceExpression(StreamExpression, "InSByteRange");
StaticTypeReferences.Stream_InShortRange = new CodeMethodReferenceExpression(StreamExpression, "InShortRange");
StaticTypeReferences.Assembler = new CodeTypeReference(AssemblerClassName);
StaticTypeReferences.AssemblerExpression = new CodeTypeReferenceExpression(Assembler);
StaticTypeReferences.Instruction = new CodeTypeReference(InstructionClassName);
StaticTypeReferences.InstructionExpression = new CodeTypeReferenceExpression(Instruction);
StaticTypeReferences.Prefix = new CodeTypeReference(PrefixClassName);
StaticTypeReferences.PrefixExpression = new CodeTypeReferenceExpression(Prefix);
StaticTypeReferences.InstructionForm = new CodeTypeReference(InstructionFormClassName);
StaticTypeReferences.InstructionFormExpression = new CodeTypeReferenceExpression(InstructionForm);
if (AssemblySyntaxClassName != null)
{
StaticTypeReferences.AssemblySyntax = new CodeTypeReference(AssemblySyntaxClassName);
StaticTypeReferences.AssemblySyntaxExpression = new CodeTypeReferenceExpression(AssemblySyntax);
}
StaticTypeReferences.Segment = new CodeTypeReference(SegmentClassName);
StaticTypeReferences.SegmentExpression = new CodeTypeReferenceExpression(Segment);
FieldTypeRegistry.Segment = FieldTypeRegistry.Fields[FieldTypeRegistry.RegisterType(SegmentClassName, "seg_")];
}
