internal override void Add(Opcode opcode)
{
LiteralRelationOpcode opcode2 = this.ValidateOpcode(opcode);
if (opcode2 == null)
{
base.Add(opcode);
}
else
{
QueryBranch literalBranch = this.branchIndex[opcode2.Literal];
if (literalBranch == null)
{
this.nextID++;
literalBranch = new QueryBranch(opcode2, this.nextID);
opcode2.Prev = this;
this.branchIndex[opcode2.Literal] = literalBranch;
}
else
{
literalBranch.Branch.Next.Add(opcode2.Next);
}
opcode2.Flags |= OpcodeFlags.InConditional;
this.AddAlwaysBranch(literalBranch, opcode2.Next);
}
}
internal override void Add(Opcode opcode)
{
LiteralRelationOpcode literal = this.ValidateOpcode(opcode);
if (null == literal)
{
base.Add(opcode);
return;
}
// Was this literal already added to the index?
QueryBranch queryBranch = this.branchIndex[literal.Literal];
if (null == queryBranch)
{
// First time. New branch
this.nextID++;
queryBranch = new QueryBranch(literal, this.nextID);
literal.Prev = this;
this.branchIndex[literal.Literal] = queryBranch;
}
else
{
Fx.Assert(!object.ReferenceEquals(queryBranch.Branch, literal), "");
Fx.Assert(literal.ID == queryBranch.Branch.ID, "");
// literal already exists.. but what follows the literal must be branched
// Should never get here, but just in case
queryBranch.Branch.Next.Add(literal.Next);
}
literal.Flags |= OpcodeFlags.InConditional;
this.AddAlwaysBranch(queryBranch, literal.Next);
}
internal void AddAlwaysBranch(Opcode literal, Opcode next)
{
LiteralRelationOpcode opcode = this.ValidateOpcode(literal);
if (opcode != null)
{
this.AddAlwaysBranch(opcode, next);
}
}
// Whether or not the given literal matches, we must always take the branch rooted at 'next'
// Add to the AlwaysBranches table if not already there..
internal void AddAlwaysBranch(LiteralRelationOpcode literal, Opcode next)
{
Fx.Assert(null != literal && null != next, "");
QueryBranch literalBranch = this.branchIndex[literal.Literal];
Fx.Assert(null != literalBranch, "");
this.AddAlwaysBranch(literalBranch, next);
}
internal void AddAlwaysBranch(Opcode literal, Opcode next)
{
LiteralRelationOpcode literalOp = this.ValidateOpcode(literal);
Fx.Assert(null != literalOp, "");
if (null != literalOp)
{
this.AddAlwaysBranch(literalOp, next);
}
}
internal QueryBranch GetBranch(Opcode op)
{
if (op.TestFlag(OpcodeFlags.Literal))
{
LiteralRelationOpcode opcode = this.ValidateOpcode(op);
if (opcode != null)
{
QueryBranch branch = this.branchIndex[opcode.Literal];
if ((branch != null) && (branch.Branch.ID == op.ID))
{
return(branch);
}
}
}
return(null);
}
internal QueryBranch GetBranch(Opcode op)
{
if (op.TestFlag(OpcodeFlags.Literal))
{
LiteralRelationOpcode relOp = this.ValidateOpcode(op);
if (null != relOp)
{
QueryBranch branch = this.branchIndex[relOp.Literal];
if (null != branch && branch.Branch.ID == op.ID)
{
return(branch);
}
}
}
return(null);
}
internal override void RemoveChild(Opcode opcode)
{
LiteralRelationOpcode opcode2 = this.ValidateOpcode(opcode);
QueryBranch branch = this.branchIndex[opcode2.Literal];
this.branchIndex.Remove(opcode2.Literal);
Opcode opcode1 = branch.Branch;
opcode1.Flags &= ~OpcodeFlags.NoContextCopy;
if (this.alwaysBranches != null)
{
int index = this.alwaysBranches.IndexOfID(branch.ID);
if (index >= 0)
{
this.alwaysBranches.RemoveAt(index);
if (this.alwaysBranches.Count == 0)
{
this.alwaysBranches = null;
}
}
}
}
internal override void RemoveChild(Opcode opcode)
{
LiteralRelationOpcode literal = this.ValidateOpcode(opcode);
Fx.Assert(null != literal, "");
QueryBranch branch = this.branchIndex[literal.Literal];
Fx.Assert(null != branch, "");
this.branchIndex.Remove(literal.Literal);
branch.Branch.Flags &= (~OpcodeFlags.NoContextCopy);
if (null != this.alwaysBranches)
{
int removeAt = this.alwaysBranches.IndexOfID(branch.ID);
if (removeAt >= 0)
{
this.alwaysBranches.RemoveAt(removeAt);
if (0 == this.alwaysBranches.Count)
{
this.alwaysBranches = null;
}
}
}
}
internal void AddAlwaysBranch(LiteralRelationOpcode literal, Opcode next)
{
QueryBranch literalBranch = this.branchIndex[literal.Literal];
this.AddAlwaysBranch(literalBranch, next);
}
internal void AddAlwaysBranch(LiteralRelationOpcode literal, Opcode next)
{
QueryBranch literalBranch = this.branchIndex[literal.Literal];
this.AddAlwaysBranch(literalBranch, next);
}
