/// <summary>
/// Loop over all branches, trying to locate one that is equal to the given opcode
/// If the branch is a branch itself, perform the locate recursively.
/// </summary>
/// <param name="opcode"></param>
/// <returns></returns>
internal override Opcode Locate(Opcode opcode)
{
Fx.Assert(!opcode.TestFlag(OpcodeFlags.Branch), "");
for (int i = 0, count = this.branches.Count; i < count; ++i)
{
Opcode branch = this.branches[i];
if (branch.TestFlag(OpcodeFlags.Branch))
{
// The branch is itself a branch. Since branch opcodes serve as branches in the exection
// path for a query, but don't comprise one of the opcodes used to actually perform it, we
// recursively try to locate an equivalent opcode inside the branch
Opcode subBranch = branch.Locate(opcode);
if (null != subBranch)
{
return(subBranch);
}
}
else if (branch.Equals(opcode))
{
return(branch);
}
}
return(null);
}
internal override Opcode Locate(Opcode opcode)
{
int num = 0;
int count = this.branches.Count;
while (num < count)
{
Opcode opcode2 = this.branches[num];
if (opcode2.TestFlag(OpcodeFlags.Branch))
{
Opcode opcode3 = opcode2.Locate(opcode);
if (opcode3 != null)
{
return(opcode3);
}
}
else if (opcode2.Equals(opcode))
{
return(opcode2);
}
num++;
}
return(null);
}
