public override void EndNode(ParserContext context)
{
switch (context.NodeKind)
{
case SyntaxNodeKind.UnaryOperator:
result.Add(FormatResult("unaryop", context.Span));
break;
case SyntaxNodeKind.Operator:
result.Add(FormatResult("op", context.Span));
break;
case SyntaxNodeKind.Constant:
result.Add(FormatResult("num", context.Span));
break;
case SyntaxNodeKind.ExpressionIdentifier:
result.Add(FormatResult("identifier", context.Span));
break;
case SyntaxNodeKind.ExpressionLeftParenthesis:
result.Add("(");
break;
case SyntaxNodeKind.ExpressionRightParenthesis:
result.Add(")");
break;
}
}
public override void EndNode(ParserContext context)
{
switch (context.NodeKind)
{
case SyntaxNodeKind.LineNumber:
EndLineNumber(context);
break;
case SyntaxNodeKind.Mnemonic:
EndMnemonic(context);
break;
case SyntaxNodeKind.Instruction:
EndInstruction(context);
break;
case SyntaxNodeKind.Label:
EndLabel(context);
break;
case SyntaxNodeKind.AbsoluteOperand:
operand = FormatResult("absolute", context.Span);
break;
case SyntaxNodeKind.ImpliedOperand:
operand = "implied";
break;
case SyntaxNodeKind.AccumulatorOperand:
operand = "accumulator";
break;
case SyntaxNodeKind.IndirectOperand:
operand = FormatResult("indirect", context.Span);
break;
case SyntaxNodeKind.ImmediateOperand:
operand = FormatResult("immediate", context.Span);
break;
case SyntaxNodeKind.OperandIndexer:
indexer = FormatResult("indexer", context.Span);
break;
case SyntaxNodeKind.Macro:
result.Add(FormatResult("macro", macroName));
break;
case SyntaxNodeKind.DirectiveOperands:
directive.AppendFormat(", {0}", context.Span.Text);
break;
case SyntaxNodeKind.Literal:
directive.AppendFormat(", {0}", context.Span.Text);
break;
case SyntaxNodeKind.MacroName:
macroName = context.Span.Text;
break;
case SyntaxNodeKind.Directive:
directive.Append(">");
result.Add(directive.ToString());
break;
case SyntaxNodeKind.DirectiveName:
directive.Append(context.Span.Text);
break;
}
}
public override void EndNode(ParserContext context)
{
if (context.Span.Start + regionOfInterestSpan.Start.Position <= regionOfInterestSpan.End.Position)
{
IClassificationType type;
if (classificationTypes.TryGetValue(context.NodeKind, out type))
{
classifications.Add(new ClassificationSpan(
new SnapshotSpan(regionOfInterestSpan.Snapshot, context.Span.Start + regionOfInterestSpan.Start, context.Span.Length), type));
}
}
}
public override void EndNode(ParserContext context)
{
switch (context.NodeKind)
{
case SyntaxNodeKind.LineNumber:
EndLineNumber(context);
break;
case SyntaxNodeKind.Mnemonic:
EndMnemonic(context);
break;
}
}
private void EndMnemonic(ParserContext context)
{
if (context.Span.End >= cursorPosition)
{
if (context.Span.Length == 0)
suggestion = instructions.First();
var enteredMnemonic = context.Span.Text.Substring(0,
(context.Span.Length >= 3) ? 3 : context.Span.Length);
suggestion = instructions.FirstOrDefault(i => i.StartsWith(enteredMnemonic));
}
}
public override void StartNode(ParserContext context)
{
switch (context.NodeKind)
{
case SyntaxNodeKind.Line:
instruction.Clear();
directive.Clear();
indexer = null;
break;
case SyntaxNodeKind.Directive:
directive.Append("directive<");
break;
}
}
public override void StartNode(ParserContext context)
{
expressionResolver.StartNode(context);
switch (context.NodeKind)
{
case SyntaxNodeKind.Line:
lineNumber++;
indexer = null;
directiveName = null;
labelName = null;
mnemonic = null;
break;
case SyntaxNodeKind.Instruction:
if (labelName != null)
{
AddLabel(new Label(labelName, currentChunkStartAddress + opcodes.Count));
labelName = null;
}
break;
}
}
public override void EndNode(ParserContext context)
{
expressionResolver.EndNode(context);
switch (context.NodeKind)
{
case SyntaxNodeKind.Label:
labelName = context.Span.Text;
break;
case SyntaxNodeKind.MacroName:
currentMacroName = context.Span.Text;
break;
case SyntaxNodeKind.Macro:
currentMacro = new Macro(currentMacroName);
break;
case SyntaxNodeKind.DirectiveName:
directiveName = context.Span.Text;
if (labelName != null && directiveName != "=")
{
AddLabel(new Label(labelName, currentChunkStartAddress + opcodes.Count));
labelName = null;
}
break;
case SyntaxNodeKind.Directive:
ProcessDriective();
break;
case SyntaxNodeKind.Instruction:
ProcessInstruction();
break;
case SyntaxNodeKind.ImpliedOperand:
operandKind = OperandKind.Implied;
break;
case SyntaxNodeKind.AbsoluteOperand:
ProcessAbsoluteOperand();
break;
case SyntaxNodeKind.ImmediateOperand:
operandValue = (byte) expressionResolver.Evaluate();
operandKind = OperandKind.Immediate;
break;
case SyntaxNodeKind.IndirectOperand:
ProcessIndirectOperand();
break;
case SyntaxNodeKind.OperandIndexer:
ProcessOperandIndexer(context.Span.Text);
break;
case SyntaxNodeKind.Mnemonic:
mnemonic = context.Span.Text;
break;
case SyntaxNodeKind.DirectiveOperands:
directiveOperands.Enqueue(expressionResolver.Evaluate());
break;
case SyntaxNodeKind.Literal:
foreach (var b in AtasciiEncoding.Instance.GetBytes(context.Span.Text))
{
directiveOperands.Enqueue(b);
}
break;
case SyntaxNodeKind.Line:
if (labelName != null)
{
AddLabel(new Label(labelName, currentChunkStartAddress + opcodes.Count));
labelName = null;
}
break;
}
}
private void EndLineNumber(ParserContext context)
{
if (context.Span.End <= cursorPosition)
suggestion = instructions.First();
}
private void EndLabel(ParserContext context)
{
result.Add(FormatResult("label", context.Span));
}
private void CallHandler(ParserContext context, Action<ParserHandler, ParserContext> handlerMethod)
{
if (handler != null)
{
handlerMethod(handler, context);
}
}
public override void StartNode(ParserContext context)
{
switch (context.NodeKind)
{
case SyntaxNodeKind.Expression:
operatorStack.Push(new ExpressionOperation(ExpressionOperationKind.Expression));
break;
case SyntaxNodeKind.Line:
lineNumber++;
break;
}
}
public override void EndNode(ParserContext context)
{
switch (context.NodeKind)
{
case SyntaxNodeKind.Expression:
while (operatorStack.Count > 0)
{
var op = operatorStack.Pop();
if (op.Kind == ExpressionOperationKind.Expression)
break;
outputQueue.Enqueue(op);
}
break;
case SyntaxNodeKind.UnaryOperator:
var unaryOp = new ExpressionOperation(ConvertUnaryToOperationKind(context.Span));
EnqueOperation(unaryOp);
break;
case SyntaxNodeKind.Operator:
var op1 = new ExpressionOperation(ConvertToOperationKind(context.Span));
EnqueOperation(op1);
break;
case SyntaxNodeKind.Constant:
outputQueue.Enqueue(
new ExpressionOperation(ExpressionOperationKind.Number, ToNumber(context.Span.Text)));
break;
case SyntaxNodeKind.ExpressionIdentifier:
Label label;
var labelName = context.Span.Text;
var found = labelStore.TryGetLabel(labelName, out label);
var topOperatorKind = operatorStack.Peek().Kind;
switch (topOperatorKind)
{
case ExpressionOperationKind.Def:
labelStore.AddReferencedLabel(labelName, lineNumber);
operatorStack.Pop();
outputQueue.Enqueue(new ExpressionOperation(ExpressionOperationKind.Number, found ? 1 : 0));
break;
case ExpressionOperationKind.Ref:
operatorStack.Pop();
ISet<int> referencingLines;
bool anyReference = labelStore.TryGetReferencingLines(labelName, out referencingLines);
int refOperatorResult = (anyReference &&
(referencingLines.Count != 1 || !referencingLines.Contains(lineNumber)))
? 1
: 0;
outputQueue.Enqueue(new ExpressionOperation(ExpressionOperationKind.Number, refOperatorResult));
break;
default:
labelStore.AddReferencedLabel(labelName, lineNumber);
outputQueue.Enqueue(
found
? new ExpressionOperation(ExpressionOperationKind.Number, label.Value)
: new ExpressionOperation(ExpressionOperationKind.Number, 0));
break;
}
break;
}
}
private void EndMnemonic(ParserContext context)
{
instruction.Append(FormatResult("mnemonic", context.Span));
}
private void EndLineNumber(ParserContext context)
{
result.Add(FormatResult("line", context.Span));
}
public virtual void StartNode(ParserContext context) { }
public virtual void EndNode(ParserContext context) { }
private void EndInstruction(ParserContext context)
{
result.Add(indexer == null
? string.Format("instruction<{0}, {1}>", instruction, operand)
: string.Format("instruction<{0}, {1}, {2}>", instruction, operand, indexer));
}