EmitLiftedBinaryArithmetic()

void System.Linq.Expressions.Compiler.LambdaCompiler.EmitLiftedBinaryArithmetic ( ExpressionType op, Type leftType, Type rightType, Type resultType )

inlineprivate

Definition at line 685 of file LambdaCompiler.cs.

    {
        bool flag = leftType.IsNullableType();
        bool flag2 = rightType.IsNullableType();
        Label label = _ilg.DefineLabel();
        Label label2 = _ilg.DefineLabel();
        LocalBuilder local = GetLocal(leftType);
        LocalBuilder local2 = GetLocal(rightType);
        LocalBuilder local3 = GetLocal(resultType);
        _ilg.Emit(OpCodes.Stloc, local2);
        _ilg.Emit(OpCodes.Stloc, local);
        if (flag)
        {
            _ilg.Emit(OpCodes.Ldloca, local);
            _ilg.EmitHasValue(leftType);
        }
        if (flag2)
        {
            _ilg.Emit(OpCodes.Ldloca, local2);
            _ilg.EmitHasValue(rightType);
            if (flag)
            {
                _ilg.Emit(OpCodes.And);
            }
        }
        _ilg.Emit(OpCodes.Brfalse_S, label);
        if (flag)
        {
            _ilg.Emit(OpCodes.Ldloca, local);
            _ilg.EmitGetValueOrDefault(leftType);
        }
        else
        {
            _ilg.Emit(OpCodes.Ldloc, local);
        }
        if (flag2)
        {
            _ilg.Emit(OpCodes.Ldloca, local2);
            _ilg.EmitGetValueOrDefault(rightType);
        }
        else
        {
            _ilg.Emit(OpCodes.Ldloc, local2);
        }
        FreeLocal(local);
        FreeLocal(local2);
        Type nonNullableType = resultType.GetNonNullableType();
        EmitBinaryOperator(op, leftType.GetNonNullableType(), rightType.GetNonNullableType(), nonNullableType, liftedToNull: false);
        ConstructorInfo nullableConstructor = TypeUtils.GetNullableConstructor(resultType);
        _ilg.Emit(OpCodes.Newobj, nullableConstructor);
        _ilg.Emit(OpCodes.Stloc, local3);
        _ilg.Emit(OpCodes.Br_S, label2);
        _ilg.MarkLabel(label);
        _ilg.Emit(OpCodes.Ldloca, local3);
        _ilg.Emit(OpCodes.Initobj, resultType);
        _ilg.MarkLabel(label2);
        _ilg.Emit(OpCodes.Ldloc, local3);
        FreeLocal(local3);
    }

References System.Linq.Expressions.Compiler.LambdaCompiler._ilg, System.Reflection.Emit.OpCodes.And, System.Reflection.Emit.OpCodes.Br_S, System.Reflection.Emit.OpCodes.Brfalse_S, System.Reflection.Emit.ILGenerator.DefineLabel(), System.Reflection.Emit.ILGenerator.Emit(), System.Linq.Expressions.Compiler.LambdaCompiler.EmitBinaryOperator(), System.Linq.Expressions.Compiler.LambdaCompiler.FreeLocal(), System.Linq.Expressions.Compiler.LambdaCompiler.GetLocal(), System.Dynamic.Utils.TypeUtils.GetNullableConstructor(), System.Reflection.Emit.OpCodes.Initobj, System.Reflection.Emit.OpCodes.Ldloc, System.Reflection.Emit.OpCodes.Ldloca, System.Reflection.Emit.ILGenerator.MarkLabel(), System.Reflection.Emit.OpCodes.Newobj, and System.Reflection.Emit.OpCodes.Stloc.

Referenced by System.Linq.Expressions.Compiler.LambdaCompiler.EmitLiftedBinaryOp().