public void Case13()
{
var random = new Random();
foreach (var _ in Enumerable.Range(0, 100))
{
int a = random.Next(-100, 100);
int b = random.Next(-100, 100);
TestContext.WriteLine($"a={a}, b={b}");
var sideEffect = new SideEffetHolder();
Expression <Func <int, bool> > expr1 = x => x % 2 == 0;
Expression <Func <int, bool> > expr2 = y => y % (sideEffect.Update(3)) == 0;
var expr4 = (Expression <Func <int, int, bool> >)ExpressionOperators.OrElse(expr1, expr2);
Assert.AreEqual(a % 2 == 0 || b % 3 == 0, expr4.Compile().Invoke(a, b));
if (a % 2 != 0)
{
Assert.AreEqual(3, sideEffect.Value);
}
else
{
Assert.AreEqual(0, sideEffect.Value);
}
}
}
public void Case02()
{
var random = new Random();
foreach (var _ in Enumerable.Range(0, 10))
{
int a = random.Next(-100, 100);
int b = random.Next(-100, 100);
TestContext.WriteLine($"a={a}, b={b}");
Expression <Func <int, int, int> > expr1 = (x, y) => x - y;
Expression <Func <int, int> > expr2 = x => x / 2;
var expr3 = ExpressionOperators.Then <int, int, int>(expr1, expr2);
Assert.AreEqual((a - b) / 2, expr3.Compile().Invoke(a, b));
}
}
public void Case11()
{
var random = new Random();
foreach (var _ in Enumerable.Range(0, 100))
{
int a = random.Next(-100, 100);
int b = random.Next(-100, 100);
TestContext.WriteLine($"a={a}, b={b}");
Expression <Func <int, bool> > expr1 = x => x % 2 == 0;
Expression <Func <int, bool> > expr2 = y => y % 3 == 0;
var expr4 = (Expression <Func <int, int, bool> >)ExpressionOperators.OrElse(expr1, expr2);
Assert.AreEqual(a % 2 == 0 || b % 3 == 0, expr4.Compile().Invoke(a, b));
}
}
public void Case01()
{
var random = new Random();
foreach (var _ in Enumerable.Range(0, 10))
{
int a = random.Next(-100, 100);
TestContext.WriteLine($"a={a}");
Expression <Func <int, int> > expr1 = x => x - 1;
Expression <Func <int, int> > expr2 = x => x / 2;
var expr3 = ExpressionOperators.Then <int, int>(expr1, expr2);
var expr4 = ExpressionOperators.Then <int, int>(expr2, expr1);
Assert.AreEqual((a - 1) / 2, expr3.Compile().Invoke(a));
Assert.AreEqual(a / 2 - 1, expr4.Compile().Invoke(a));
}
}
public void Case09()
{
var random = new Random();
foreach (var _ in Enumerable.Range(0, 100))
{
int a = random.Next(-100, 100);
int b = random.Next(-100, 100);
int c = random.Next(-100, 100);
TestContext.WriteLine($"a={a}, b={b}, c={c}");
Expression <Func <int, bool> > expr1 = x => x % 2 == 0;
Expression <Func <int, bool> > expr2 = y => y % 3 == 0;
Expression <Func <int, bool> > expr3 = z => z % 5 == 0;
var expr4 = (Expression <Func <int, int, int, bool> >)ExpressionOperators.AndAlso(expr1, expr2, expr3);
Assert.AreEqual(a % 2 == 0 && b % 3 == 0 && c % 5 == 0, expr4.Compile().Invoke(a, b, c));
}
}
private bool ExtractOpa(CriteriaOperator op, out ExpressionOperators eopa, out CriteriaOperator operand)
{
UnaryOperator objA = op as UnaryOperator;
bool flag = !object.ReferenceEquals(objA, null) && (objA.OperatorType == UnaryOperatorType.Not);
if (flag)
{
op = objA.Operand;
}
UnaryOperator operator2 = op as UnaryOperator;
if (!object.ReferenceEquals(operator2, null))
{
operand = null;
if (operator2.OperatorType == UnaryOperatorType.IsNull)
{
eopa = flag ? ExpressionOperators.NonBlanks : ExpressionOperators.Blanks;
return true;
}
}
BinaryOperator operator3 = op as BinaryOperator;
if (!object.ReferenceEquals(operator3, null))
{
operand = operator3.RightOperand;
if (flag)
{
switch (operator3.OperatorType)
{
case BinaryOperatorType.Equal:
eopa = ExpressionOperators.NotEquals;
return true;
case BinaryOperatorType.NotEqual:
eopa = ExpressionOperators.Equals;
return true;
case BinaryOperatorType.Greater:
eopa = ExpressionOperators.LessOrEqual;
return true;
case BinaryOperatorType.Less:
eopa = ExpressionOperators.GreaterOrEqual;
return true;
case BinaryOperatorType.LessOrEqual:
eopa = ExpressionOperators.Greater;
return true;
case BinaryOperatorType.GreaterOrEqual:
eopa = ExpressionOperators.Less;
return true;
case BinaryOperatorType.Like:
eopa = ExpressionOperators.NotLike;
return true;
}
}
else
{
switch (operator3.OperatorType)
{
case BinaryOperatorType.Equal:
eopa = ExpressionOperators.Equals;
return true;
case BinaryOperatorType.NotEqual:
eopa = ExpressionOperators.NotEquals;
return true;
case BinaryOperatorType.Greater:
eopa = ExpressionOperators.Greater;
return true;
case BinaryOperatorType.Less:
eopa = ExpressionOperators.Less;
return true;
case BinaryOperatorType.LessOrEqual:
eopa = ExpressionOperators.LessOrEqual;
return true;
case BinaryOperatorType.GreaterOrEqual:
eopa = ExpressionOperators.GreaterOrEqual;
return true;
case BinaryOperatorType.Like:
eopa = ExpressionOperators.Like;
return true;
}
}
}
operand = null;
eopa = ExpressionOperators.Blanks;
return false;
}
internal string DescriptionByExOperator(ExpressionOperators o)
{
int num = 0;
num = 0;
while (num <= this.operators.GetUpperBound(1))
{
if (this.operators[0, num].Equals(o))
{
break;
}
num++;
}
return this.operators[1, num].ToString();
}
