public EmitLabel DefineLabel()
{
var label = new EmitLabel();
labels.Add(label);
return(label);
}
public EmitInstruction Emit(IEmitOpCodeLabel opCode, EmitLabel label)
{
var instruction = new EmitInstruction(opCode, label);
AddInstruction(instruction);
return(instruction);
}
public override void Compile(EmitCompilerContext context, EmitIl il)
{
Condition.Compile(context, il);
var ifNotTrue = il.DefineLabel();
il.Emit(EmitOpCodes.Brfalse, ifNotTrue);
Statement.Compile(context, il);
var statementReturned = il.Instructions.Last().OpCode == EmitOpCodes.Ret;
if (Else != null)
{
EmitLabel end = null;
if (!statementReturned)
{
end = il.DefineLabel();
il.Emit(EmitOpCodes.Br, end);
}
il.MarkLabel(ifNotTrue);
Else.Compile(context, il);
if (!statementReturned)
{
il.MarkLabel(end);
il.Emit(EmitOpCodes.Nop);
}
}
else
{
il.MarkLabel(ifNotTrue);
}
}
internal void AddLabel(EmitLabel label)
{
if (labels == null)
{
labels = new List <EmitLabel>();
}
labels.Add(label);
}
public EmitLabel DefineLabel()
{
var label = new EmitLabel();
labels.Add(label);
return label;
}
public void MarkLabel(EmitLabel label)
{
pendingLabels.Add(label);
}
public EmitInstruction Emit(IEmitOpCodeLabelArray opCode, EmitLabel[] labels)
{
var instruction = new EmitInstruction(opCode, labels);
AddInstruction(instruction);
return instruction;
}
public EmitInstruction Emit(IEmitOpCodeLabel opCode, EmitLabel label)
{
var instruction = new EmitInstruction(opCode, label);
AddInstruction(instruction);
return instruction;
}
public void MarkLabel(EmitLabel label)
{
pendingLabels.Add(label);
}
internal void AddLabel(EmitLabel label)
{
if (labels == null)
labels = new List<EmitLabel>();
labels.Add(label);
}
