internal override ConstantExpression ConstantFold() {
Expression left = _left.ConstantFold();
Expression right = _right.ConstantFold();
var constLeft = left as ConstantExpression;
var constRight = right as ConstantExpression;
try {
if (constLeft != null && constRight != null &&
constLeft.Value != null && constRight.Value != null &&
constLeft.Value.GetType() == constRight.Value.GetType()) {
#region Generated Python Constant Folding
// *** BEGIN GENERATED CODE ***
// generated by function: gen_constant_folding from: generate_ops.py
if (constLeft.Value.GetType() == typeof(Int32)) {
switch (_op) {
case PythonOperator.Add: return new ConstantExpression(Int32Ops.Add((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.Subtract: return new ConstantExpression(Int32Ops.Subtract((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.Power: return new ConstantExpression(Int32Ops.Power((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.Multiply: return new ConstantExpression(Int32Ops.Multiply((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.FloorDivide: return new ConstantExpression(Int32Ops.FloorDivide((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.Divide: return new ConstantExpression(Int32Ops.Divide((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.TrueDivide: return new ConstantExpression(Int32Ops.TrueDivide((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.Mod: return new ConstantExpression(Int32Ops.Mod((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.LeftShift: return new ConstantExpression(Int32Ops.LeftShift((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.RightShift: return new ConstantExpression(Int32Ops.RightShift((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.BitwiseAnd: return new ConstantExpression(Int32Ops.BitwiseAnd((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.BitwiseOr: return new ConstantExpression(Int32Ops.BitwiseOr((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.ExclusiveOr: return new ConstantExpression(Int32Ops.ExclusiveOr((Int32)constLeft.Value, (Int32)constRight.Value));
case PythonOperator.LessThan: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(Int32Ops.Compare((Int32)constLeft.Value, (Int32)constRight.Value) < 0));
case PythonOperator.GreaterThan: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(Int32Ops.Compare((Int32)constLeft.Value, (Int32)constRight.Value) > 0));
case PythonOperator.LessThanOrEqual: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(Int32Ops.Compare((Int32)constLeft.Value, (Int32)constRight.Value) <= 0));
case PythonOperator.GreaterThanOrEqual: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(Int32Ops.Compare((Int32)constLeft.Value, (Int32)constRight.Value) >= 0));
case PythonOperator.Equals: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(Int32Ops.Compare((Int32)constLeft.Value, (Int32)constRight.Value) == 0));
case PythonOperator.NotEquals: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(Int32Ops.Compare((Int32)constLeft.Value, (Int32)constRight.Value) != 0));
}
}
if (constLeft.Value.GetType() == typeof(Double)) {
switch (_op) {
case PythonOperator.Add: return new ConstantExpression(DoubleOps.Add((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.Subtract: return new ConstantExpression(DoubleOps.Subtract((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.Power: return new ConstantExpression(DoubleOps.Power((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.Multiply: return new ConstantExpression(DoubleOps.Multiply((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.FloorDivide: return new ConstantExpression(DoubleOps.FloorDivide((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.Divide: return new ConstantExpression(DoubleOps.Divide((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.TrueDivide: return new ConstantExpression(DoubleOps.TrueDivide((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.Mod: return new ConstantExpression(DoubleOps.Mod((Double)constLeft.Value, (Double)constRight.Value));
case PythonOperator.LessThan: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(DoubleOps.Compare((Double)constLeft.Value, (Double)constRight.Value) < 0));
case PythonOperator.GreaterThan: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(DoubleOps.Compare((Double)constLeft.Value, (Double)constRight.Value) > 0));
case PythonOperator.LessThanOrEqual: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(DoubleOps.Compare((Double)constLeft.Value, (Double)constRight.Value) <= 0));
case PythonOperator.GreaterThanOrEqual: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(DoubleOps.Compare((Double)constLeft.Value, (Double)constRight.Value) >= 0));
case PythonOperator.Equals: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(DoubleOps.Compare((Double)constLeft.Value, (Double)constRight.Value) == 0));
case PythonOperator.NotEquals: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(DoubleOps.Compare((Double)constLeft.Value, (Double)constRight.Value) != 0));
}
}
if (constLeft.Value.GetType() == typeof(BigInteger)) {
switch (_op) {
case PythonOperator.Add: return new ConstantExpression(BigIntegerOps.Add((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.Subtract: return new ConstantExpression(BigIntegerOps.Subtract((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.Power: return new ConstantExpression(BigIntegerOps.Power((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.Multiply: return new ConstantExpression(BigIntegerOps.Multiply((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.FloorDivide: return new ConstantExpression(BigIntegerOps.FloorDivide((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.Divide: return new ConstantExpression(BigIntegerOps.Divide((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.TrueDivide: return new ConstantExpression(BigIntegerOps.TrueDivide((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.Mod: return new ConstantExpression(BigIntegerOps.Mod((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.LeftShift: return new ConstantExpression(BigIntegerOps.LeftShift((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.RightShift: return new ConstantExpression(BigIntegerOps.RightShift((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.BitwiseAnd: return new ConstantExpression(BigIntegerOps.BitwiseAnd((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.BitwiseOr: return new ConstantExpression(BigIntegerOps.BitwiseOr((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.ExclusiveOr: return new ConstantExpression(BigIntegerOps.ExclusiveOr((BigInteger)constLeft.Value, (BigInteger)constRight.Value));
case PythonOperator.LessThan: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(BigIntegerOps.Compare((BigInteger)constLeft.Value, (BigInteger)constRight.Value) < 0));
case PythonOperator.GreaterThan: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(BigIntegerOps.Compare((BigInteger)constLeft.Value, (BigInteger)constRight.Value) > 0));
case PythonOperator.LessThanOrEqual: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(BigIntegerOps.Compare((BigInteger)constLeft.Value, (BigInteger)constRight.Value) <= 0));
case PythonOperator.GreaterThanOrEqual: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(BigIntegerOps.Compare((BigInteger)constLeft.Value, (BigInteger)constRight.Value) >= 0));
case PythonOperator.Equals: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(BigIntegerOps.Compare((BigInteger)constLeft.Value, (BigInteger)constRight.Value) == 0));
case PythonOperator.NotEquals: return new ConstantExpression(ScriptingRuntimeHelpers.BooleanToObject(BigIntegerOps.Compare((BigInteger)constLeft.Value, (BigInteger)constRight.Value) != 0));
}
}
if (constLeft.Value.GetType() == typeof(Complex)) {
switch (_op) {
case PythonOperator.Add: return new ConstantExpression(ComplexOps.Add((Complex)constLeft.Value, (Complex)constRight.Value));
case PythonOperator.Subtract: return new ConstantExpression(ComplexOps.Subtract((Complex)constLeft.Value, (Complex)constRight.Value));
case PythonOperator.Power: return new ConstantExpression(ComplexOps.Power((Complex)constLeft.Value, (Complex)constRight.Value));
case PythonOperator.Multiply: return new ConstantExpression(ComplexOps.Multiply((Complex)constLeft.Value, (Complex)constRight.Value));
case PythonOperator.Divide: return new ConstantExpression(ComplexOps.Divide((Complex)constLeft.Value, (Complex)constRight.Value));
case PythonOperator.TrueDivide: return new ConstantExpression(ComplexOps.TrueDivide((Complex)constLeft.Value, (Complex)constRight.Value));
}
}
// *** END GENERATED CODE ***
#endregion
if (constLeft.Value.GetType() == typeof(string) && _op == PythonOperator.Add) {
return new ConstantExpression((string)constLeft.Value + (string)constRight.Value);
}
} else if (_op == PythonOperator.Multiply && constLeft != null && constRight != null) {
// 10000 check is to avoid creating massive strings in IL - there's a limit to the number of
// bytes of strings we get to have so we don't want to use them all up.
if (constLeft.Value.GetType() == typeof(string) && constRight.Value.GetType() == typeof(int)) {
var res = StringOps.Multiply((string)constLeft.Value, (int)constRight.Value);
if (res.Length < MaximumInlineStringLength) {
return new ConstantExpression(res);
}
} else if (constLeft.Value.GetType() == typeof(int) && constRight.Value.GetType() == typeof(string)) {
var res = StringOps.Multiply((string)constRight.Value, (int)constLeft.Value);
if (res.Length < MaximumInlineStringLength) {
return new ConstantExpression(res);
}
}
}
} catch (ArithmeticException) {
}
return null;
}