private Expression Transform(Expression expression)
{
V_0 = null;
V_1 = expression as ConditionExpression;
V_2 = null;
V_3 = false;
V_4 = false;
if (!this.IsBinaryExpression(expression, out V_2, out V_3))
{
if (V_1 != null && this.TryTransformTernary(V_1, out V_0))
{
V_4 = true;
}
}
else
{
V_5 = TransformCatchClausesFilterExpressionStep.GetBinaryExpression(V_3, V_2);
if (this.TryTransformBinary(V_5))
{
V_0 = TransformCatchClausesFilterExpressionStep.GetResultExpression(V_3, V_2, V_5);
V_4 = true;
}
}
if (!V_4)
{
V_0 = expression;
}
return(V_0);
}
private bool TryTransform(BinaryExpression node)
{
if (!node.get_IsAssignmentExpression())
{
return(false);
}
if (String.op_Inequality(node.get_ExpressionType().get_FullName(), "System.Boolean"))
{
return(false);
}
if (node.get_Left() as VariableReferenceExpression == null)
{
return(false);
}
V_0 = node.get_Right() as BinaryExpression;
if (V_0 == null)
{
return(false);
}
if (V_0.get_Operator() != 10)
{
return(false);
}
V_1 = V_0.get_Right() as LiteralExpression;
if (V_1 == null || V_1.get_Value() as Int32 == 0 || (Int32)V_1.get_Value() != 0)
{
return(false);
}
V_3 = false;
if (this.IsBinaryExpression(V_0.get_Left(), out V_2, out V_3))
{
V_5 = TransformCatchClausesFilterExpressionStep.GetBinaryExpression(V_3, V_2);
if (this.TryTransformBinary(V_5))
{
node.set_Right(TransformCatchClausesFilterExpressionStep.GetResultExpression(V_3, V_2, V_5));
return(true);
}
}
V_4 = V_0.get_Left() as ConditionExpression;
if (V_4 != null && this.TryTransformTernary(V_4, out V_6))
{
node.set_Right(V_6);
return(true);
}
if (!String.op_Equality(V_0.get_Left().get_ExpressionType().get_FullName(), "System.Boolean"))
{
return(false);
}
node.set_Right(V_0.get_Left());
return(true);
}
private bool TryTransformBinary(BinaryExpression binaryExpression)
{
V_0 = false;
if (String.op_Inequality(binaryExpression.get_Left().get_ExpressionType().get_FullName(), "System.Boolean") || String.op_Inequality(binaryExpression.get_Right().get_ExpressionType().get_FullName(), "System.Boolean"))
{
return(false);
}
V_1 = false;
if (this.IsBinaryExpression(binaryExpression.get_Left(), out V_2, out V_1))
{
V_8 = TransformCatchClausesFilterExpressionStep.GetBinaryExpression(V_1, V_2);
if (this.TryTransformBinary(V_8))
{
binaryExpression.set_Left(TransformCatchClausesFilterExpressionStep.GetResultExpression(V_1, V_2, V_8));
V_0 = true;
}
}
V_1 = false;
if (this.IsBinaryExpression(binaryExpression.get_Right(), out V_3, out V_1))
{
V_9 = TransformCatchClausesFilterExpressionStep.GetBinaryExpression(V_1, V_3);
if (this.TryTransformBinary(V_9))
{
binaryExpression.set_Right(TransformCatchClausesFilterExpressionStep.GetResultExpression(V_1, V_3, V_9));
V_0 = true;
}
}
V_4 = binaryExpression.get_Left() as ConditionExpression;
if (V_4 != null && this.TryTransformTernary(V_4, out V_5))
{
binaryExpression.set_Left(V_5);
V_0 = true;
}
V_6 = binaryExpression.get_Right() as ConditionExpression;
if (V_6 != null && this.TryTransformTernary(V_6, out V_7))
{
binaryExpression.set_Right(V_7);
V_0 = true;
}
return(V_0);
}
private bool TryTransformTernary(ConditionExpression ternary, out Expression transformed)
{
transformed = null;
V_2 = ternary.get_Then() as LiteralExpression;
V_3 = ternary.get_Else() as LiteralExpression;
if (V_2 != null && V_3 != null)
{
V_14 = false;
V_15 = false;
if (!String.op_Equality(V_2.get_ExpressionType().get_FullName(), "System.Int32") || !String.op_Equality(V_3.get_ExpressionType().get_FullName(), "System.Int32"))
{
if (String.op_Equality(V_2.get_ExpressionType().get_FullName(), "System.Boolean") && String.op_Equality(V_3.get_ExpressionType().get_FullName(), "System.Boolean"))
{
V_18 = (Boolean)V_2.get_Value();
V_19 = (Boolean)V_3.get_Value();
if (!V_18 && V_19 || V_18 && !V_19)
{
V_14 = true;
if (!V_18 && V_19)
{
V_15 = true;
}
}
}
}
else
{
V_16 = (Int32)V_2.get_Value();
V_17 = (Int32)V_3.get_Value();
if (V_16 == 0 && V_17 == 1 || V_16 == 1 && V_17 == 0)
{
V_14 = true;
if (V_16 == 0 && V_17 == 1)
{
V_15 = true;
}
}
}
if (V_14)
{
if (!V_15)
{
transformed = this.Transform(ternary.get_Condition());
}
else
{
transformed = this.Transform(Negator.Negate(ternary.get_Condition(), this.typeSystem));
}
return(true);
}
}
if (V_2 == null)
{
if (V_3 == null)
{
V_20 = ternary.get_Then() as ExplicitCastExpression;
V_21 = ternary.get_Else() as ExplicitCastExpression;
if (V_20 == null || V_21 == null || !String.op_Equality(V_20.get_TargetType().get_FullName(), "System.Int32") || !String.op_Equality(V_20.get_Expression().get_ExpressionType().get_FullName(), "System.Boolean") || !String.op_Equality(V_21.get_TargetType().get_FullName(), "System.Int32") || !String.op_Equality(V_21.get_Expression().get_ExpressionType().get_FullName(), "System.Boolean"))
{
return(false);
}
ternary.set_Then(V_20.get_Expression());
ternary.set_Else(V_21.get_Expression());
transformed = ternary;
return(true);
}
V_0 = V_3;
V_1 = false;
}
else
{
V_0 = V_2;
V_1 = true;
}
if (!String.op_Equality(V_0.get_ExpressionType().get_FullName(), "System.Int32"))
{
if (!String.op_Equality(V_0.get_ExpressionType().get_FullName(), "System.Boolean"))
{
return(false);
}
V_4 = (Boolean)V_0.get_Value();
}
else
{
if ((Int32)V_0.get_Value() != 0)
{
stackVariable163 = true;
}
else
{
stackVariable163 = false;
}
V_4 = stackVariable163;
}
V_6 = null;
V_7 = null;
V_6 = this.Transform(ternary.get_Condition());
if (!V_1)
{
V_8 = ternary.get_Then();
}
else
{
V_8 = ternary.get_Else();
}
V_9 = V_8 as ConditionExpression;
V_10 = V_8 as ExplicitCastExpression;
V_11 = null;
V_12 = false;
if (V_9 == null && V_10 == null || String.op_Inequality(V_10.get_TargetType().get_FullName(), "System.Int32") || String.op_Inequality(V_10.get_Expression().get_ExpressionType().get_FullName(), "System.Boolean") && !this.IsBinaryExpression(V_8, out V_11, out V_12) && String.op_Inequality(V_8.get_ExpressionType().get_FullName(), "System.Boolean"))
{
return(false);
}
V_13 = false;
if (V_10 == null)
{
if (V_11 == null)
{
if (V_9 != null && this.TryTransformTernary(V_9, out V_7))
{
V_13 = true;
}
}
else
{
V_22 = TransformCatchClausesFilterExpressionStep.GetBinaryExpression(V_12, V_11);
if (this.TryTransformBinary(V_22))
{
V_7 = TransformCatchClausesFilterExpressionStep.GetResultExpression(V_12, V_11, V_22);
V_13 = true;
}
}
}
else
{
V_7 = V_10.get_Expression();
V_13 = true;
}
if (!V_13)
{
V_7 = V_8;
}
if (V_6 == null || V_7 == null)
{
return(false);
}
if (!V_4)
{
V_5 = 12;
if (V_1)
{
stackVariable97 = Negator.Negate(V_6, this.typeSystem);
}
else
{
stackVariable97 = V_6;
}
V_6 = stackVariable97;
}
else
{
V_5 = 11;
if (V_1)
{
stackVariable111 = V_6;
}
else
{
stackVariable111 = Negator.Negate(V_6, this.typeSystem);
}
V_6 = stackVariable111;
}
transformed = new BinaryExpression(V_5, V_6, V_7, this.typeSystem, ternary.get_MappedInstructions(), false);
return(true);
}