private void InitHelpers()
{
addToProgram = true;
lastCompiledAssign = null;
isOperatorUnaryPrefix = false;
isCompilingAssignmentTarget = false;
isSelectorsFirstCompile = true;
isCurrentCompiledTheMainProgram = true;
lazyEvaluationJumpStack = new System.Collections.Generic.Stack<Jump>();
jumpStack = new System.Collections.Generic.Stack<Jump>();
conditionCount = 0;
lineLengthList = SourceInfoUtils.FindLineLengths(Source);
currentGlobalVariableInfo = null;
currentUserDefinedFunctionInfo = null;
}
public override void Visit(AssignmentOpNode node)
{
if (node.Value == "=")
{
isCompilingAssignmentTarget = true;
node.Left.Accept(this);
isCompilingAssignmentTarget = false;
node.Right.Accept(this);
AddCommand(lastCompiledAssign = new Assign(true));
}
else
{
// x op= y -> x = x op y //
isCompilingAssignmentTarget = true;
node.Left.Accept(this);
isCompilingAssignmentTarget = false;
node.Left.Accept(this);
node.Right.Accept(this);
switch (node.Value[0])
{
case '+': AddCommand(new BinaryOperation(BinaryOperation.Operations.Addition)); break;
case '-': AddCommand(new BinaryOperation(BinaryOperation.Operations.Subtraction)); break;
case '*': AddCommand(new BinaryOperation(BinaryOperation.Operations.Multiplication)); break;
case '/': AddCommand(new BinaryOperation(BinaryOperation.Operations.Division)); break;
case '%': AddCommand(new BinaryOperation(BinaryOperation.Operations.Modulo)); break;
case '^': AddCommand(new BinaryOperation(BinaryOperation.Operations.Power)); break;
case '&': AddCommand(new BinaryOperation(BinaryOperation.Operations.LogicalAnd)); break;
case '|': AddCommand(new BinaryOperation(BinaryOperation.Operations.LogicalOr)); break;
case '~': AddCommand(new BinaryOperation(BinaryOperation.Operations.LogicalXor)); break;
default:
AddError(CompilerErrorCode.Custom, string.Format("Unknown Assign Operator : {0}", node.Value), node.NodeValueInfo);
break;
}
AddCommand(lastCompiledAssign = new Assign(true));
}
}
public override void Visit(ExpressionNode node)
{
VisitChildren(node);
if (lastCompiledAssign != null) lastCompiledAssign.PushResult = false;
lastCompiledAssign = null;
}