public AstExpression VisitVariable(Scope context, AstExpression.Var var)
{
var.Variable = context.FindVariable(var.TokenName.Value);
if (var.Variable == null)
{
throw new CompilerException(var.TokenName, $"variable {var.TokenName.Value} is not defined.");
}
return(var);
}
public List <Instruction> VisitVariable(Scope context, AstExpression.Var var)
{
if (var.Type == DataTypes.Int)
{
var heapLayout = context.GetHeapLayoutUntil(var.Variable);
return(new List <Instruction>()
{
new Instruction(ReadLocal, heapLayout),
new Instruction(DupInt),
new Instruction(WriteLocal, heapLayout),
});
}
throw new NotImplementedException();
}
public Tree VisitVariable(object c, AstExpression.Var var)
=> new Tree("v:" + var.TokenName.Value);