public override void GenerateCode(ILGenerator gen, CodeFlow cf)
{
LeftOperand.GenerateCode(gen, cf);
var leftDesc = LeftOperand.ExitDescriptor;
var exitDesc = _exitTypeDescriptor;
if (exitDesc == null)
{
throw new InvalidOperationException("No exit type descriptor");
}
CodeFlow.InsertNumericUnboxOrPrimitiveTypeCoercion(gen, leftDesc, exitDesc);
if (_children.Length > 1)
{
cf.EnterCompilationScope();
RightOperand.GenerateCode(gen, cf);
var rightDesc = RightOperand.ExitDescriptor;
cf.ExitCompilationScope();
CodeFlow.InsertNumericUnboxOrPrimitiveTypeCoercion(gen, rightDesc, exitDesc);
gen.Emit(OpCodes.Sub);
}
else
{
gen.Emit(OpCodes.Neg);
}
cf.PushDescriptor(_exitTypeDescriptor);
}
public override void GenerateCode(ILGenerator gen, CodeFlow cf)
{
if (_exitTypeDescriptor == TypeDescriptor.STRING)
{
gen.Emit(OpCodes.Newobj, _sbConstructor);
Walk(gen, cf, LeftOperand);
Walk(gen, cf, RightOperand);
gen.Emit(OpCodes.Callvirt, _toString);
}
else
{
_children[0].GenerateCode(gen, cf);
var leftDesc = _children[0].ExitDescriptor;
var exitDesc = _exitTypeDescriptor;
if (exitDesc == null)
{
throw new InvalidOperationException("No exit type descriptor");
}
CodeFlow.InsertNumericUnboxOrPrimitiveTypeCoercion(gen, leftDesc, exitDesc);
if (_children.Length > 1)
{
cf.EnterCompilationScope();
_children[1].GenerateCode(gen, cf);
var rightDesc = _children[1].ExitDescriptor;
cf.ExitCompilationScope();
CodeFlow.InsertNumericUnboxOrPrimitiveTypeCoercion(gen, rightDesc, exitDesc);
gen.Emit(OpCodes.Add);
}
}
cf.PushDescriptor(_exitTypeDescriptor);
}