private InterpreterState PrepareInterpreterState(ISymbolicExpressionTree tree, IDataset dataset)
{
Instruction[] code = SymbolicExpressionTreeCompiler.Compile(tree, OpCodes.MapSymbolToOpCode);
Dictionary <string, int> doubleVariableNames = dataset.DoubleVariables.Select((x, i) => new { x, i }).ToDictionary(e => e.x, e => e.i);
int necessaryArgStackSize = 0;
foreach (Instruction instr in code)
{
if (instr.opCode == OpCodes.Variable)
{
var variableTreeNode = (VariableTreeNode)instr.dynamicNode;
instr.data = doubleVariableNames[variableTreeNode.VariableName];
}
else if (instr.opCode == OpCodes.LagVariable)
{
var laggedVariableTreeNode = (LaggedVariableTreeNode)instr.dynamicNode;
instr.data = doubleVariableNames[laggedVariableTreeNode.VariableName];
}
else if (instr.opCode == OpCodes.VariableCondition)
{
var variableConditionTreeNode = (VariableConditionTreeNode)instr.dynamicNode;
instr.data = doubleVariableNames[variableConditionTreeNode.VariableName];
}
else if (instr.opCode == OpCodes.Call)
{
necessaryArgStackSize += instr.nArguments + 1;
}
}
return(new InterpreterState(code, necessaryArgStackSize));
}
private static InterpreterState PrepareInterpreterState(ISymbolicExpressionTree tree, IDataset dataset)
{
Instruction[] code = SymbolicExpressionTreeCompiler.Compile(tree, OpCodes.MapSymbolToOpCode);
int necessaryArgStackSize = 0;
foreach (Instruction instr in code)
{
if (instr.opCode == OpCodes.Variable)
{
var variableTreeNode = (VariableTreeNode)instr.dynamicNode;
instr.data = dataset.GetReadOnlyDoubleValues(variableTreeNode.VariableName);
}
else if (instr.opCode == OpCodes.LagVariable)
{
var laggedVariableTreeNode = (LaggedVariableTreeNode)instr.dynamicNode;
instr.data = dataset.GetReadOnlyDoubleValues(laggedVariableTreeNode.VariableName);
}
else if (instr.opCode == OpCodes.VariableCondition)
{
var variableConditionTreeNode = (VariableConditionTreeNode)instr.dynamicNode;
instr.data = dataset.GetReadOnlyDoubleValues(variableConditionTreeNode.VariableName);
}
else if (instr.opCode == OpCodes.Call)
{
necessaryArgStackSize += instr.nArguments + 1;
}
}
return(new InterpreterState(code, necessaryArgStackSize));
}
private static Instruction[] PrepareInterpreterState(ISymbolicExpressionTree tree, IDictionary <string, Interval> variableRanges)
{
if (variableRanges == null)
{
throw new ArgumentNullException("No variablew ranges are present!", nameof(variableRanges));
}
//Check if all variables used in the tree are present in the dataset
foreach (var variable in tree.IterateNodesPrefix().OfType <VariableTreeNode>().Select(n => n.VariableName).Distinct())
{
if (!variableRanges.ContainsKey(variable))
{
throw new InvalidOperationException($"No ranges for variable {variable} is present");
}
}
Instruction[] code = SymbolicExpressionTreeCompiler.Compile(tree, OpCodes.MapSymbolToOpCode);
foreach (Instruction instr in code.Where(i => i.opCode == OpCodes.Variable))
{
var variableTreeNode = (VariableTreeNode)instr.dynamicNode;
instr.data = variableRanges[variableTreeNode.VariableName];
}
return(code);
}