public override void Visit(AmlParser.DefIfElse defIfElse)
{
LoadTimeEvaluateVisitor visitor =
new LoadTimeEvaluateVisitor(acpiNamespace, currentPath);
defIfElse.predicate.integer.Accept(visitor);
if (visitor.Result.GetAsInt().Value != 0)
{
foreach (TermObj termObj in defIfElse.termList)
{
termObj.Accept(this);
}
}
else if (defIfElse.defElse.termList != null)
{
foreach (TermObj termObj in defIfElse.defElse.termList)
{
termObj.Accept(this);
}
}
}
public override void Visit(AmlParser.DefIfElse defIfElse)
{
// We create a sequence like this:
// (push predicate)
// jump if nonzero to thenBranch
// (else branch instructions)
// jump to end
// elseBranch:
// (then branch instructions)
// end:
defIfElse.predicate.Accept(this);
JumpIfNonZero thenJump = new JumpIfNonZero();
result.Add(thenJump);
defIfElse.defElse.Accept(this);
Jump jumpOverThenBrach = new Jump();
result.Add(jumpOverThenBrach);
thenJump.ThenTarget = result.Count;
VisitSequence(defIfElse.termList);
jumpOverThenBrach.Target = result.Count;
}
public override void Visit(AmlParser.DefIfElse defIfElse)
{
//
// Load-time Ifs are both rare and tricky, because it makes the
// two-phase model here unworkable: we can't let the NamesVisitor
// visit the if body before the truth value of its predicate is
// known, but this may depend on values filled in by the ValuesVisitor.
// Being an exceptional case, we just have the NamesVisitor always
// visit both branches, which works for the examples I've come across
// like the AMD with Infineon TPM.
//
foreach (TermObj termObj in defIfElse.termList)
{
termObj.Accept(this);
}
if (defIfElse.defElse.termList != null)
{
foreach (TermObj termObj in defIfElse.defElse.termList)
{
termObj.Accept(this);
}
}
}
public virtual void Visit(AmlParser.DefIfElse defIfElse)
{
UnhandledNodeType("DefIfElse");
}