/// <summary>
/// Performs a for loop
/// </summary>
/// <param name="tree">Tree to be executed</param>
private void ForLoop(KermitAST tree)
{
KermitAST begin = (KermitAST)tree.GetChild(0);
KermitAST condition = (KermitAST)tree.GetChild(1);
KermitAST action = (KermitAST)tree.GetChild(2);
KermitAST code = (KermitAST)tree.GetChild(3);
ScopeSpace sp = new ScopeSpace("while", _currentSpace);
MemorySpace save = _currentSpace;
try
{
_currentSpace = sp;
for (Execute(begin); (KBool)Execute(condition); Execute(action))
{
Execute(code);
}
}
finally
{
_currentSpace = save;
}
}
/// <summary>
/// Performs a while loop
/// </summary>
/// <param name="tree">Tree to be executed</param>
private void WhileLoop(KermitAST tree)
{
KermitAST condition = (KermitAST)tree.GetChild(0);
KermitAST code = (KermitAST)tree.GetChild(1);
ScopeSpace sp = new ScopeSpace("while", _currentSpace);
MemorySpace save = _currentSpace;
try
{
_currentSpace = sp;
KBool cond = Execute(condition).Cast <KBool>();
while (cond)
{
Execute(code);
cond = Execute(condition).Cast <KBool>();
}
}
finally
{
_currentSpace = save;
}
}