private IList <Node> evalUserDefinedFunctionCall(Node n)
{
return(EvaluateFunctionsCalls.evalUserDefinedFunctionCall(n, this));
}
private IList <Node> evalFunctionCall(Node node)
{
return(EvaluateFunctionsCalls.evalFunctionCall(node, activationFrameStack, mainFunctionName, functionNodeMap, this));
}
public static IList <Node> evalVariableDeclWithAssignment(Node n, ActivationFrameStack activationFrameStack, string mainName, IDictionary <string, Node> functionNodeMap)
{
VariableDeclarationNode variableDeclarationNode = (VariableDeclarationNode)n;
IList <Node> instructionsToReturnAndExecute = new List <Node>();
IList <Node> instructions = variableDeclarationNode.Instructions;
KeywordNode keywordNode = variableDeclarationNode.KeyWordNode;
Node rightHandSide = null;
if (variableDeclarationNode.DeclarationWithAssignment)
{
if (!variableDeclarationNode.OperatorEqualSign)
{
throw new Exception("Invalid operator for expression");
}
rightHandSide = variableDeclarationNode.RightValue;
switch (rightHandSide.Type)
{
case LiteralType:
if (rightHandSide is LiteralNode)
{
LiteralNode literalNode = (LiteralNode)rightHandSide;
EvaluateAssignments <LiteralNode> literalNodeEvaluateAssignments = new EvaluateAssignments <LiteralNode>();
if (literalNodeEvaluateAssignments.canLiteralBeAssigned(keywordNode, literalNode))
{
if (instructions[1] is VariableNode)
{
VariableNode variableNode = (VariableNode)instructions[1];
if (activationFrameStack.peek().variableSet.ContainsKey(variableNode.variableName))
{
throw new Exception("Variable already declared");
}
else
{
activationFrameStack.peek().variableSet[variableNode.variableName] = rightHandSide;
}
}
}
}
break;
case FunctionaCallType:
instructionsToReturnAndExecute = EvaluateFunctionsCalls.evalFunctionCall(rightHandSide, activationFrameStack, mainName, functionNodeMap, interpreterCallback);
if (activationFrameStack.peek().parameterStack.Count > 0)
{
VariableNode variableNode = (VariableNode)instructions[1];
if (activationFrameStack.peek().variableSet.ContainsKey(variableNode.variableName))
{
throw new Exception("Variable already declared");
}
else
{
activationFrameStack.peek().variableSet[variableNode.variableName] = activationFrameStack.peek().parameterStack.Pop();
}
}
break;
}
}
return(instructionsToReturnAndExecute);
}
