public override void Visit(LoopStatementNode node)
{
// AddCommand(new PushState());
// LoopIteratorInitialization
node.LoopIteratorInitialization.Accept(this);
int conditionAddress = CurrentFunctionSize;
// LoopCondition //
string loopIteratorName = node.LoopIteratorName.Value;
AddCommand(new Push(loopIteratorName,ValueAccessModes.LocalVariable));
// LoopLimitExpression
node.LoopLimitExpression.Accept(this);
AddCommand(new Compare(Compare.ComparisonModes.LessThanOrEqual));
// LoopCondition //
RelativeJumpIfFalse rj = new RelativeJumpIfFalse(0);
AddCommand(rj);
jumpStack.Push(rj);
// LoopCore
node.LoopCore.Accept(this);
// LoopUpdate
AddCommand(new Push(loopIteratorName, ValueAccessModes.LocalVariableReference));
AddCommand(new Push(loopIteratorName, ValueAccessModes.LocalVariable));
AddCommand(new Push(new Integer(1)));
AddCommand(new BinaryOperation(BinaryOperation.Operations.Addition));
AddCommand(new Assign(false));
AddCommand(new RelativeJump(conditionAddress - CurrentFunctionSize));
// Pop all Break from the jumpStack and set up it's PC to the end of the block
while (jumpStack.Peek().GetType() == (new Break()).GetType())
SetUpTopJumpInJumpStack(0);
SetUpTopJumpInJumpStack(0);
// AddCommand(new PopState());
}
public override void Visit(ForEachStatementNode node)
{
// AddCommand(new PushState());
RegisterIntervalChange(node.ForEachInitialization);
// ForEachRunningVariableType
node.ForEachRunningVariableType.Accept(this);
// If this is UserDefined, then use lastCompiledUserDefinedDataTypeName
TypeEnum forEachRunningVariableType = lastCompiledDataType;
string forEachRunningVariableTypeName = lastCompiledDataTypeName;
// IteratorVariableName
string forEachRunningVariableName = node.ForEachRunningVariableName.Value;
// Check variable name
//CheckAndAddLocalVariableName(forEachRunningVariableName, node.NodeValueInfo);
// IteratorVariableDeclaration
AddCommand(new Declare(forEachRunningVariableName, forEachRunningVariableType));
// ForEachCollectionExpression, IteratorInitialization
node.ForEachCollectionExpression.Accept(this);
AddCommand(new CallMethod("GetIterator"));
string iteratorName = GenerateIteratorName();
AddCommand(new Initialize(iteratorName, TypeEnum.Iterator));
int conditionAddress = CurrentFunctionSize;
// ForEachCondition
AddCommand(new Push(iteratorName, ValueAccessModes.LocalVariableReference));
AddCommand(new CallMethod("MoveNext"));
RelativeJumpIfFalse rj = new RelativeJumpIfFalse(0);
AddCommand(rj);
jumpStack.Push(rj);
// ForEachUpdate
AddCommand(new Push(forEachRunningVariableName, ValueAccessModes.LocalVariableReference));
AddCommand(new Push(iteratorName, ValueAccessModes.LocalVariable));
AddCommand(new CallMethod("Current"));
AddCommand(new Assign(false));
// ForEachCore
node.ForEachCore.Accept(this);
AddCommand(new RelativeJump( conditionAddress - CurrentFunctionSize));
// Pop all Break from the jumpStack and set up it's PC to the end of the block
while (jumpStack.Peek().GetType() == (new Break()).GetType())
SetUpTopJumpInJumpStack(0);
SetUpTopJumpInJumpStack(0);
// AddCommand(new PopState());
}
public override void Visit(ForStatementNode node)
{
AddCommand(new PushScope());
// ForInitialization
node.ForInitialization.Accept(this);
int conditionAddress = CurrentFunctionSize;
// ForCondition
node.ForCondition.Accept(this);
// Jump To The end of the ForStatement if the ForCondition is false
RelativeJumpIfFalse rj = new RelativeJumpIfFalse(0);
AddCommand(rj);
jumpStack.Push(rj);
// ForCore
AddCommand(new PushScope());
node.ForCore.Accept(this);
AddCommand(new PopScope());
// ForUpdate
node.ForUpdate.Accept(this);
// Jump To The ForCondition
AddCommand(new RelativeJump(conditionAddress - CurrentFunctionSize));
// Pop all Break from the jumpStack and set up it's PC to the end of the block
while (jumpStack.Peek().GetType() == (typeof(Break)))
{
AddCommandBefore(new PopScope(), jumpStack.Peek());
SetUpTopJumpInJumpStack(0);
}
SetUpTopJumpInJumpStack(0);
AddCommand(new PopScope());
}
public override void Visit(WhileStatementNode node)
{
// AddCommand(new PushState());
int conditionAddress = CurrentFunctionSize;
// WhileCondition
node.WhileCondition.Accept(this);
// Jump To The end of the WhileStatement if the WhileCondition if false
RelativeJumpIfFalse rj = new RelativeJumpIfFalse(0);
AddCommand(rj);
jumpStack.Push(rj);
// WhileCore
node.WhileCore.Accept(this);
// Jump to the while condition
AddCommand(new RelativeJump(conditionAddress - CurrentFunctionSize));
// Pop all Break from the jumpStack and set up it's PC to the end of the block
while (jumpStack.Peek().GetType() == (new Break()).GetType())
SetUpTopJumpInJumpStack(0);
SetUpTopJumpInJumpStack(0);
// AddCommand(new PopState());
}
public override void Visit(ConditionalBranchNode node)
{
// AddCommand( new PushState() );
node.ConditionalBranchCondition.Accept(this);
RelativeJumpIfFalse falseConditionJump = new RelativeJumpIfFalse(0);
AddCommand(falseConditionJump);
jumpStack.Push(falseConditionJump);
// IfCore
node.ConditionalBranchCore.Accept(this);
// This will jump to the end of the IfStatement
RelativeJump toEndJump = new RelativeJump(0);
AddCommand(toEndJump);
// Pop all Break command from the jumpStack
System.Collections.Generic.Stack<Jump> tempBreakStack = new System.Collections.Generic.Stack<Jump>();
while (jumpStack.Count != 0 && jumpStack.Peek().GetType() == (new Break()).GetType() )
tempBreakStack.Push(jumpStack.Pop());
SetUpTopJumpInJumpStack(0);
// Push all Break back to the jumpStack
while (tempBreakStack.Count != 0) jumpStack.Push(tempBreakStack.Pop());
// Push the falseConditionJump to set up PC later
jumpStack.Push(toEndJump);
conditionCount++;
// AddCommand( new PopState() );
}