private static object CalculateToString(TemplateContext context, SourceSpan span, ScriptBinaryOperator op, object left, object right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(context.ToString(span, left) + context.ToString(span, right));
case ScriptBinaryOperator.Multiply:
if (right is int)
{
var temp = left;
left = right;
right = temp;
}
if (left is int)
{
var rightText = context.ToString(span, right);
var builder = new StringBuilder();
for (int i = 0; i < (int)left; i++)
{
builder.Append(rightText);
}
return(builder.ToString());
}
throw new ScriptRuntimeException(span, $"Operator `{op.ToText()}` is not supported for the expression. Only working on string x int or int x string"); // unit test: 112-binary-string-error1.txt
case ScriptBinaryOperator.CompareEqual:
return(context.ToString(span, left) == context.ToString(span, right));
case ScriptBinaryOperator.CompareNotEqual:
return(context.ToString(span, left) != context.ToString(span, right));
case ScriptBinaryOperator.CompareGreater:
return(context.ToString(span, left).CompareTo(context.ToString(span, right)) > 0);
case ScriptBinaryOperator.CompareLess:
return(context.ToString(span, left).CompareTo(context.ToString(span, right)) < 0);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(context.ToString(span, left).CompareTo(context.ToString(span, right)) >= 0);
case ScriptBinaryOperator.CompareLessOrEqual:
return(context.ToString(span, left).CompareTo(context.ToString(span, right)) <= 0);
case ScriptBinaryOperator.LiquidContains:
return(context.ToString(span, left).Contains(context.ToString(span, right)));
case ScriptBinaryOperator.LiquidStartsWith:
return(context.ToString(span, left).StartsWith(context.ToString(span, right)));
case ScriptBinaryOperator.LiquidEndsWith:
return(context.ToString(span, left).EndsWith(context.ToString(span, right)));
}
// unit test: 150-range-expression-error1.out.txt
throw new ScriptRuntimeException(span, $"Operator `{op.ToText()}` is not supported on string objects"); // unit test: 112-binary-string-error2.txt
}
private object CalculateToString(ScriptBinaryOperator op, object left, object right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(ScriptValueConverter.ToString(Span, left) + ScriptValueConverter.ToString(Span, right));
case ScriptBinaryOperator.Multiply:
if (right is int)
{
var temp = left;
left = right;
right = temp;
}
if (left is int)
{
var rightText = ScriptValueConverter.ToString(Span, right);
var builder = new StringBuilder();
for (int i = 0; i < (int)left; i++)
{
builder.Append(rightText);
}
return(builder.ToString());
}
throw new ScriptRuntimeException(Span, $"Operator [{op.ToText()}] is not supported for the expression [{this}]. Only working on string x int or int x string"); // unit test: 112-binary-string-error1.txt
case ScriptBinaryOperator.CompareEqual:
return(ScriptValueConverter.ToString(Span, left) == ScriptValueConverter.ToString(Span, right));
case ScriptBinaryOperator.CompareNotEqual:
return(ScriptValueConverter.ToString(Span, left) != ScriptValueConverter.ToString(Span, right));
case ScriptBinaryOperator.CompareGreater:
return(ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) > 0);
case ScriptBinaryOperator.CompareLess:
return(ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) < 0);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) >= 0);
case ScriptBinaryOperator.CompareLessOrEqual:
return(ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) <= 0);
}
// unit test: 150-range-expression-error1.out.txt
throw new ScriptRuntimeException(Span, $"Operator [{op.ToText()}] is not supported on string objects"); // unit test: 112-binary-string-error2.txt
}
private object Calculate(ScriptBinaryOperator op, bool left, bool right)
{
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
}
throw new ScriptRuntimeException(Span, $"The operator [{op.ToText()}] is not valid for bool<->bool");
}
private static object CalculateBool(ScriptBinaryOperator op, SourceSpan span, bool left, bool right)
{
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
}
throw new ScriptRuntimeException(span, $"The operator `{op.ToText()}` is not valid for bool<->bool");
}
private static object CalculateLong(ScriptBinaryOperator op, SourceSpan span, long left, long right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(left + right);
case ScriptBinaryOperator.Substract:
return(left - right);
case ScriptBinaryOperator.Multiply:
return(left * right);
case ScriptBinaryOperator.Divide:
return((double)left / right);
case ScriptBinaryOperator.DivideRound:
return(left / right);
case ScriptBinaryOperator.Modulus:
return(left % right);
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
case ScriptBinaryOperator.CompareGreater:
return(left > right);
case ScriptBinaryOperator.CompareLess:
return(left < right);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(left >= right);
case ScriptBinaryOperator.CompareLessOrEqual:
return(left <= right);
case ScriptBinaryOperator.RangeInclude:
return(RangeInclude(left, right));
case ScriptBinaryOperator.RangeExclude:
return(RangeExclude(left, right));
}
throw new ScriptRuntimeException(span, $"The operator `{op.ToText()}` is not implemented for long<->long");
}
private object Calculate(ScriptBinaryOperator op, int left, int right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(left + right);
case ScriptBinaryOperator.Substract:
return(left - right);
case ScriptBinaryOperator.Multiply:
return(left * right);
case ScriptBinaryOperator.Divide:
return((float)left / right);
case ScriptBinaryOperator.DivideRound:
return(left / right);
case ScriptBinaryOperator.Modulus:
return(left % right);
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
case ScriptBinaryOperator.CompareGreater:
return(left > right);
case ScriptBinaryOperator.CompareLess:
return(left < right);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(left >= right);
case ScriptBinaryOperator.CompareLessOrEqual:
return(left <= right);
case ScriptBinaryOperator.RangeInclude:
return(RangeInclude(left, right));
case ScriptBinaryOperator.RangeExclude:
return(RangeExclude(left, right));
}
throw new ScriptRuntimeException(Span, $"The operator [{op.ToText()}] is not implemented for int<->int");
}
private static object CalculateDecimal(ScriptBinaryOperator op, SourceSpan span, decimal left, decimal right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(left + right);
case ScriptBinaryOperator.Substract:
return(left - right);
case ScriptBinaryOperator.Multiply:
return(left * right);
case ScriptBinaryOperator.Divide:
return(left / right);
case ScriptBinaryOperator.DivideRound:
return(Math.Round(left / right));
case ScriptBinaryOperator.Modulus:
return(left % right);
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
case ScriptBinaryOperator.CompareGreater:
return(left > right);
case ScriptBinaryOperator.CompareLess:
return(left < right);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(left >= right);
case ScriptBinaryOperator.CompareLessOrEqual:
return(left <= right);
}
throw new ScriptRuntimeException(span, $"The operator `{op.ToText()}` is not implemented for decimal<->decimal");
}
private static object CalculateFloat(ScriptBinaryOperator op, SourceSpan span, float left, float right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(left + right);
case ScriptBinaryOperator.Substract:
return(left - right);
case ScriptBinaryOperator.Multiply:
return(left * right);
case ScriptBinaryOperator.Divide:
return((float)left / right);
case ScriptBinaryOperator.DivideRound:
return((double)(int)(left / right));
case ScriptBinaryOperator.Modulus:
return(left % right);
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
case ScriptBinaryOperator.CompareGreater:
return(left > right);
case ScriptBinaryOperator.CompareLess:
return(left < right);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(left >= right);
case ScriptBinaryOperator.CompareLessOrEqual:
return(left <= right);
}
throw new ScriptRuntimeException(span, $"The operator `{op.ToText()}` is not implemented for float<->float");
}
private static object CalculateOthers(TemplateContext context, SourceSpan span, ScriptBinaryOperator op, object leftValue, object rightValue)
{
// Both values are null, applies the relevant binary ops
if (leftValue == null && rightValue == null)
{
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
return(true);
case ScriptBinaryOperator.CompareNotEqual:
return(false);
case ScriptBinaryOperator.CompareGreater:
case ScriptBinaryOperator.CompareLess:
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
return(false);
case ScriptBinaryOperator.Add:
case ScriptBinaryOperator.Substract:
case ScriptBinaryOperator.Multiply:
case ScriptBinaryOperator.Divide:
case ScriptBinaryOperator.DivideRound:
case ScriptBinaryOperator.Modulus:
case ScriptBinaryOperator.RangeInclude:
case ScriptBinaryOperator.RangeExclude:
return(null);
case ScriptBinaryOperator.LiquidContains:
case ScriptBinaryOperator.LiquidStartsWith:
case ScriptBinaryOperator.LiquidEndsWith:
return(false);
}
return(null);
}
// One value is null
if (leftValue == null || rightValue == null)
{
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
case ScriptBinaryOperator.CompareNotEqual:
case ScriptBinaryOperator.CompareGreater:
case ScriptBinaryOperator.CompareLess:
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
case ScriptBinaryOperator.LiquidContains:
case ScriptBinaryOperator.LiquidStartsWith:
case ScriptBinaryOperator.LiquidEndsWith:
return(false);
case ScriptBinaryOperator.Add:
case ScriptBinaryOperator.Substract:
case ScriptBinaryOperator.Multiply:
case ScriptBinaryOperator.Divide:
case ScriptBinaryOperator.DivideRound:
case ScriptBinaryOperator.Modulus:
case ScriptBinaryOperator.RangeInclude:
case ScriptBinaryOperator.RangeExclude:
return(null);
}
return(null);
}
var leftType = leftValue.GetType();
var rightType = rightValue.GetType();
// The order matters: decimal, double, float, long, int
if (leftType == typeof(decimal))
{
var rightDecimal = (decimal)context.ToObject(span, rightValue, typeof(decimal));
return(CalculateDecimal(op, span, (decimal)leftValue, rightDecimal));
}
if (rightType == typeof(decimal))
{
var leftDecimal = (decimal)context.ToObject(span, leftValue, typeof(decimal));
return(CalculateDecimal(op, span, leftDecimal, (decimal)rightValue));
}
if (leftType == typeof(double))
{
var rightDouble = (double)context.ToObject(span, rightValue, typeof(double));
return(CalculateDouble(op, span, (double)leftValue, rightDouble));
}
if (rightType == typeof(double))
{
var leftDouble = (double)context.ToObject(span, leftValue, typeof(double));
return(CalculateDouble(op, span, leftDouble, (double)rightValue));
}
if (leftType == typeof(float))
{
var rightFloat = (float)context.ToObject(span, rightValue, typeof(float));
return(CalculateFloat(op, span, (float)leftValue, rightFloat));
}
if (rightType == typeof(float))
{
var leftFloat = (float)context.ToObject(span, leftValue, typeof(float));
return(CalculateFloat(op, span, leftFloat, (float)rightValue));
}
if (leftType == typeof(long))
{
var rightLong = (long)context.ToObject(span, rightValue, typeof(long));
return(CalculateLong(op, span, (long)leftValue, rightLong));
}
if (rightType == typeof(long))
{
var leftLong = (long)context.ToObject(span, leftValue, typeof(long));
return(CalculateLong(op, span, leftLong, (long)rightValue));
}
if (leftType == typeof(int) || (leftType != null && leftType.GetTypeInfo().IsEnum))
{
var rightInt = (int)context.ToObject(span, rightValue, typeof(int));
return(CalculateInt(op, span, (int)leftValue, rightInt));
}
if (rightType == typeof(int) || (rightType != null && rightType.GetTypeInfo().IsEnum))
{
var leftInt = (int)context.ToObject(span, leftValue, typeof(int));
return(CalculateInt(op, span, leftInt, (int)rightValue));
}
if (leftType == typeof(bool))
{
var rightBool = (bool)context.ToObject(span, rightValue, typeof(bool));
return(CalculateBool(op, span, (bool)leftValue, rightBool));
}
if (rightType == typeof(bool))
{
var leftBool = (bool)context.ToObject(span, leftValue, typeof(bool));
return(CalculateBool(op, span, leftBool, (bool)rightValue));
}
if (leftType == typeof(DateTime) && rightType == typeof(DateTime))
{
return(CalculateDateTime(op, span, (DateTime)leftValue, (DateTime)rightValue));
}
if (leftType == typeof(DateTime) && rightType == typeof(TimeSpan))
{
return(CalculateDateTime(op, span, (DateTime)leftValue, (TimeSpan)rightValue));
}
//allows to check equality for objects with not only primitive types
if (op == ScriptBinaryOperator.CompareEqual)
{
return(leftValue.Equals(rightValue));
}
throw new ScriptRuntimeException(span, $"Unsupported types `{leftValue}/{leftType}` {op.ToText()} `{rightValue}/{rightType}` for binary operation");
}
private object Calculate(ScriptBinaryOperator op, object leftValue, Type leftType, object rightValue, Type rightType)
{
var customType = leftValue as IScriptCustomType ?? rightValue as IScriptCustomType;
if (customType != null)
{
return customType.EvaluateBinaryExpression(this, leftValue, rightValue);
}
// The order matters: double, float, long, int
if (leftType == typeof(double))
{
var rightDouble = (double)ScriptValueConverter.ToObject(Span, rightValue, typeof(double));
return Calculate(op, (double)leftValue, rightDouble);
}
if (rightType == typeof(double))
{
var leftDouble = (double)ScriptValueConverter.ToObject(Span, leftValue, typeof(double));
return Calculate(op, leftDouble, (double)rightValue);
}
if (leftType == typeof(float))
{
var rightFloat = (float)ScriptValueConverter.ToObject(Span, rightValue, typeof(float));
return Calculate(op, (float)leftValue, rightFloat);
}
if (rightType == typeof(float))
{
var leftFloat = (float)ScriptValueConverter.ToObject(Span, leftValue, typeof(float));
return Calculate(op, leftFloat, (float)rightValue);
}
if (leftType == typeof(long))
{
var rightLong = (long)ScriptValueConverter.ToObject(Span, rightValue, typeof(long));
return Calculate(op, (long)leftValue, rightLong);
}
if (rightType == typeof(long))
{
var leftLong = (long)ScriptValueConverter.ToObject(Span, leftValue, typeof(long));
return Calculate(op, leftLong, (long)rightValue);
}
if (leftType == typeof (int) || (leftType != null && leftType.GetTypeInfo().IsEnum))
{
var rightInt = (int) ScriptValueConverter.ToObject(Span, rightValue, typeof (int));
return Calculate(op, (int) leftValue, rightInt);
}
if (rightType == typeof (int) || (rightType != null && rightType.GetTypeInfo().IsEnum))
{
var leftInt = (int) ScriptValueConverter.ToObject(Span, leftValue, typeof (int));
return Calculate(op, leftInt, (int) rightValue);
}
throw new ScriptRuntimeException(Span, $"Unsupported types [{leftValue ?? "null"}/{leftType?.ToString() ?? "null"}] {op.ToText()} [{rightValue ?? "null"}/{rightType?.ToString() ?? "null"}] for binary operation");
}
private static object CalculateEmpty(TemplateContext context, SourceSpan span, ScriptBinaryOperator op, object leftValue, object rightValue)
{
var leftIsEmptyObject = leftValue == EmptyScriptObject.Default;
var rightIsEmptyObject = rightValue == EmptyScriptObject.Default;
// If both are empty, we return false or empty
if (leftIsEmptyObject && rightIsEmptyObject)
{
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
return(true);
case ScriptBinaryOperator.CompareNotEqual:
case ScriptBinaryOperator.CompareGreater:
case ScriptBinaryOperator.CompareLess:
case ScriptBinaryOperator.LiquidContains:
case ScriptBinaryOperator.LiquidStartsWith:
case ScriptBinaryOperator.LiquidEndsWith:
return(false);
}
return(EmptyScriptObject.Default);
}
var against = leftIsEmptyObject ? rightValue : leftValue;
var againstEmpty = context.IsEmpty(span, against);
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
return(againstEmpty);
case ScriptBinaryOperator.CompareNotEqual:
return(againstEmpty is bool? !(bool)againstEmpty : againstEmpty);
case ScriptBinaryOperator.CompareGreater:
case ScriptBinaryOperator.CompareLess:
return(false);
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
return(againstEmpty);
case ScriptBinaryOperator.Add:
case ScriptBinaryOperator.Substract:
case ScriptBinaryOperator.Multiply:
case ScriptBinaryOperator.Divide:
case ScriptBinaryOperator.DivideRound:
case ScriptBinaryOperator.Modulus:
case ScriptBinaryOperator.RangeInclude:
case ScriptBinaryOperator.RangeExclude:
return(EmptyScriptObject.Default);
case ScriptBinaryOperator.LiquidContains:
case ScriptBinaryOperator.LiquidStartsWith:
case ScriptBinaryOperator.LiquidEndsWith:
return(false);
}
throw new ScriptRuntimeException(span, $"Operator `{op.ToText()}` is not implemented for `{(leftIsEmptyObject ? "empty" : leftValue)}` / `{(rightIsEmptyObject ? "empty" : rightValue)}`");
}
private object Calculate(ScriptBinaryOperator op, object leftValue, Type leftType, object rightValue, Type rightType)
{
var customType = leftValue as IScriptCustomType ?? rightValue as IScriptCustomType;
if (customType != null)
{
return(customType.EvaluateBinaryExpression(this, leftValue, rightValue));
}
// The order matters: double, float, long, int
if (leftType == typeof(double))
{
var rightDouble = (double)ScriptValueConverter.ToObject(Span, rightValue, typeof(double));
return(Calculate(op, (double)leftValue, rightDouble));
}
if (rightType == typeof(double))
{
var leftDouble = (double)ScriptValueConverter.ToObject(Span, leftValue, typeof(double));
return(Calculate(op, leftDouble, (double)rightValue));
}
if (leftType == typeof(float))
{
var rightFloat = (float)ScriptValueConverter.ToObject(Span, rightValue, typeof(float));
return(Calculate(op, (float)leftValue, rightFloat));
}
if (rightType == typeof(float))
{
var leftFloat = (float)ScriptValueConverter.ToObject(Span, leftValue, typeof(float));
return(Calculate(op, leftFloat, (float)rightValue));
}
if (leftType == typeof(long))
{
var rightLong = (long)ScriptValueConverter.ToObject(Span, rightValue, typeof(long));
return(Calculate(op, (long)leftValue, rightLong));
}
if (rightType == typeof(long))
{
var leftLong = (long)ScriptValueConverter.ToObject(Span, leftValue, typeof(long));
return(Calculate(op, leftLong, (long)rightValue));
}
if (leftType == typeof(int) || (leftType != null && leftType.GetTypeInfo().IsEnum))
{
var rightInt = (int)ScriptValueConverter.ToObject(Span, rightValue, typeof(int));
return(Calculate(op, (int)leftValue, rightInt));
}
if (rightType == typeof(int) || (rightType != null && rightType.GetTypeInfo().IsEnum))
{
var leftInt = (int)ScriptValueConverter.ToObject(Span, leftValue, typeof(int));
return(Calculate(op, leftInt, (int)rightValue));
}
throw new ScriptRuntimeException(Span, $"Unsupported types [{leftValue ?? "null"}/{leftType?.ToString() ?? "null"}] {op.ToText()} [{rightValue ?? "null"}/{rightType?.ToString() ?? "null"}] for binary operation");
}
private static object CalculateDateTime(ScriptBinaryOperator op, SourceSpan span, DateTime left, DateTime right)
{
switch (op)
{
case ScriptBinaryOperator.Substract:
return(left - right);
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
case ScriptBinaryOperator.CompareLess:
return(left < right);
case ScriptBinaryOperator.CompareLessOrEqual:
return(left <= right);
case ScriptBinaryOperator.CompareGreater:
return(left > right);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(left >= right);
}
throw new ScriptRuntimeException(span, string.Format(RS.UnsupportedOperatorForType, op.ToText(), "datetime"));
}
private static bool CompareTo(TemplateContext context, SourceSpan span, ScriptBinaryOperator op, IEnumerable <object> left, IEnumerable <object> right)
{
// Compare the length first
var leftCount = left.Count();
var rightCount = right.Count();
var compare = leftCount.CompareTo(rightCount);
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
if (compare != 0)
{
return(false);
}
break;
case ScriptBinaryOperator.CompareNotEqual:
if (compare != 0)
{
return(true);
}
if (leftCount == 0)
{
return(false);
}
break;
case ScriptBinaryOperator.CompareLessOrEqual:
case ScriptBinaryOperator.CompareLess:
if (compare < 0)
{
return(true);
}
if (compare > 0)
{
return(false);
}
if (leftCount == 0 && op == ScriptBinaryOperator.CompareLess)
{
return(false);
}
break;
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareGreater:
if (compare < 0)
{
return(false);
}
if (compare > 0)
{
return(true);
}
if (leftCount == 0 && op == ScriptBinaryOperator.CompareGreater)
{
return(false);
}
break;
default:
throw new ScriptRuntimeException(span, $"The operator `{op.ToText()}` is not supported between {context.GetTypeName(left)} and {context.GetTypeName(right)}.");
}
// Otherwise we need to compare each element
var leftIterator = left.GetEnumerator();
var rightIterator = right.GetEnumerator();
while (leftIterator.MoveNext() && rightIterator.MoveNext())
{
var leftValue = leftIterator.Current;
var rightValue = rightIterator.Current;
var result = (bool)ScriptBinaryExpression.Evaluate(context, span, op, leftValue, rightValue);
if (!result)
{
return(false);
}
}
return(true);
}
public bool TryEvaluate(TemplateContext context, SourceSpan span, ScriptBinaryOperator op, SourceSpan leftSpan, object leftValue, SourceSpan rightSpan, object rightValue, out object result)
{
result = null;
var leftArray = TryGetRange(leftValue);
var rightArray = TryGetRange(rightValue);
int intModifier = 0;
var intSpan = leftSpan;
var errorSpan = span;
string reason = null;
switch (op)
{
case ScriptBinaryOperator.BinaryOr:
case ScriptBinaryOperator.BinaryAnd:
case ScriptBinaryOperator.CompareEqual:
case ScriptBinaryOperator.CompareNotEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLess:
case ScriptBinaryOperator.CompareGreater:
case ScriptBinaryOperator.Add:
if (leftArray == null)
{
errorSpan = leftSpan;
reason = " Expecting an array for the left argument.";
}
if (rightArray == null)
{
errorSpan = rightSpan;
reason = " Expecting an array for the right argument.";
}
break;
case ScriptBinaryOperator.Multiply:
if (leftArray == null && rightArray == null || leftArray != null && rightArray != null)
{
reason = " Expecting only one array for the left or right argument.";
}
else
{
intModifier = context.ToInt(span, leftArray == null ? leftValue : rightValue);
if (rightArray == null)
{
intSpan = rightSpan;
}
}
break;
case ScriptBinaryOperator.Divide:
case ScriptBinaryOperator.DivideRound:
case ScriptBinaryOperator.Modulus:
if (leftArray == null)
{
errorSpan = leftSpan;
reason = " Expecting an array for the left argument.";
}
else
{
intModifier = context.ToInt(span, rightValue);
intSpan = rightSpan;
}
break;
case ScriptBinaryOperator.ShiftLeft:
if (leftArray == null)
{
errorSpan = leftSpan;
reason = " Expecting an array for the left argument.";
}
break;
case ScriptBinaryOperator.ShiftRight:
if (rightArray == null)
{
errorSpan = rightSpan;
reason = " Expecting an array for the right argument.";
}
break;
default:
reason = string.Empty;
break;
}
if (intModifier < 0)
{
errorSpan = intSpan;
reason = $" Integer {intModifier} cannot be negative when multiplying";
}
if (reason != null)
{
throw new ScriptRuntimeException(errorSpan, $"The operator `{op.ToText()}` is not supported between {context.GetTypeName(leftValue)} and {context.GetTypeName(rightValue)}.{reason}");
}
switch (op)
{
case ScriptBinaryOperator.BinaryOr:
result = BinaryOr(leftArray, rightArray);
return(true);
case ScriptBinaryOperator.BinaryAnd:
result = BinaryAnd(leftArray, rightArray);
return(true);
case ScriptBinaryOperator.Add:
result = Concat(leftArray, rightArray);
return(true);
case ScriptBinaryOperator.CompareEqual:
case ScriptBinaryOperator.CompareNotEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLess:
case ScriptBinaryOperator.CompareGreater:
result = CompareTo(context, span, op, leftArray, rightArray);
return(true);
case ScriptBinaryOperator.Multiply:
{
// array with integer
var array = leftArray ?? rightArray;
if (intModifier == 0)
{
result = new ScriptRange();
return(true);
}
result = Multiply(array, intModifier);
return(true);
}
case ScriptBinaryOperator.Divide:
case ScriptBinaryOperator.DivideRound:
{
// array with integer
var array = leftArray ?? rightArray;
if (intModifier == 0)
{
throw new ScriptRuntimeException(intSpan, "Cannot divide by 0");
}
result = Divide(array, intModifier);
return(true);
}
case ScriptBinaryOperator.Modulus:
{
// array with integer
var array = leftArray ?? rightArray;
if (intModifier == 0)
{
throw new ScriptRuntimeException(intSpan, "Cannot divide by 0");
}
result = Modulus(array, intModifier);
return(true);
}
case ScriptBinaryOperator.ShiftLeft:
result = ShiftLeft(leftArray, rightValue);
return(true);
case ScriptBinaryOperator.ShiftRight:
result = ShiftRight(leftValue, rightArray);
return(true);
}
return(false);
}
private string ToDebuggerDisplay()
{
return(Expression != null?Expression.ToString() : OperatorToken?.ToString() ?? $"`{Operator.ToText()}` - CallKind = {CallKind}");
}
private static object CalculateBool(ScriptBinaryOperator op, SourceSpan span, bool left, bool right)
{
switch (op)
{
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
}
throw new ScriptRuntimeException(span, string.Format(RS.UnsupportedOperatorForType, op.ToText(), "bool"));
}
private static object CalculateDateTime(ScriptBinaryOperator op, SourceSpan span, DateTime left, TimeSpan right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(left + right);
}
throw new ScriptRuntimeException(span, string.Format(RS.OperatorNotImplemented, op.ToText(), "datetime", "timespan"));
}
private object Calculate(ScriptBinaryOperator op, float left, float right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return left + right;
case ScriptBinaryOperator.Substract:
return left - right;
case ScriptBinaryOperator.Multiply:
return left * right;
case ScriptBinaryOperator.Divide:
return (float)left / right;
case ScriptBinaryOperator.DivideRound:
return (double)(int)(left / right);
case ScriptBinaryOperator.Modulus:
return left % right;
case ScriptBinaryOperator.CompareEqual:
return left == right;
case ScriptBinaryOperator.CompareNotEqual:
return left != right;
case ScriptBinaryOperator.CompareGreater:
return left > right;
case ScriptBinaryOperator.CompareLess:
return left < right;
case ScriptBinaryOperator.CompareGreaterOrEqual:
return left >= right;
case ScriptBinaryOperator.CompareLessOrEqual:
return left <= right;
}
throw new ScriptRuntimeException(Span, $"The operator [{op.ToText()}] is not implemented for float<->float");
}
private static object CalculateFloat(ScriptBinaryOperator op, SourceSpan span, float left, float right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return(left + right);
case ScriptBinaryOperator.Substract:
return(left - right);
case ScriptBinaryOperator.Multiply:
return(left * right);
case ScriptBinaryOperator.Divide:
return((float)left / right);
case ScriptBinaryOperator.DivideRound:
return((double)(int)(left / right));
case ScriptBinaryOperator.Modulus:
return(left % right);
case ScriptBinaryOperator.CompareEqual:
return(left == right);
case ScriptBinaryOperator.CompareNotEqual:
return(left != right);
case ScriptBinaryOperator.CompareGreater:
return(left > right);
case ScriptBinaryOperator.CompareLess:
return(left < right);
case ScriptBinaryOperator.CompareGreaterOrEqual:
return(left >= right);
case ScriptBinaryOperator.CompareLessOrEqual:
return(left <= right);
}
throw new ScriptRuntimeException(span, string.Format(RS.UnsupportedOperatorForType, op.ToText(), "float"));
}
public static object Evaluate(TemplateContext context, SourceSpan span, ScriptBinaryOperator op, object leftValue, object rightValue)
{
if (op == ScriptBinaryOperator.EmptyCoalescing)
{
return(leftValue ?? rightValue);
}
switch (op)
{
case ScriptBinaryOperator.ShiftLeft:
var leftList = leftValue as IList;
if (leftList != null)
{
var newList = new ScriptArray(leftList)
{
rightValue
};
return(newList);
}
break;
case ScriptBinaryOperator.ShiftRight:
var rightList = rightValue as IList;
if (rightList != null)
{
var newList = new ScriptArray(rightList);
newList.Insert(0, leftValue);
return(newList);
}
break;
case ScriptBinaryOperator.LiquidHasKey:
{
var leftDict = leftValue as IDictionary <string, object>;
if (leftDict != null)
{
return(ObjectFunctions.HasKey(leftDict, context.ToString(span, rightValue)));
}
}
break;
case ScriptBinaryOperator.LiquidHasValue:
{
var leftDict = leftValue as IDictionary <string, object>;
if (leftDict != null)
{
return(ObjectFunctions.HasValue(leftDict, context.ToString(span, rightValue)));
}
}
break;
case ScriptBinaryOperator.CompareEqual:
case ScriptBinaryOperator.CompareNotEqual:
case ScriptBinaryOperator.CompareGreater:
case ScriptBinaryOperator.CompareLess:
case ScriptBinaryOperator.CompareGreaterOrEqual:
case ScriptBinaryOperator.CompareLessOrEqual:
case ScriptBinaryOperator.Add:
case ScriptBinaryOperator.Substract:
case ScriptBinaryOperator.Multiply:
case ScriptBinaryOperator.Divide:
case ScriptBinaryOperator.DivideRound:
case ScriptBinaryOperator.Modulus:
case ScriptBinaryOperator.RangeInclude:
case ScriptBinaryOperator.RangeExclude:
case ScriptBinaryOperator.LiquidContains:
case ScriptBinaryOperator.LiquidStartsWith:
case ScriptBinaryOperator.LiquidEndsWith:
if (leftValue is string || rightValue is string)
{
return(CalculateToString(context, span, op, leftValue, rightValue));
}
else if (leftValue == EmptyScriptObject.Default || rightValue == EmptyScriptObject.Default)
{
return(CalculateEmpty(context, span, op, leftValue, rightValue));
}
else
{
return(CalculateOthers(context, span, op, leftValue, rightValue));
}
}
throw new ScriptRuntimeException(span, $"Operator `{op.ToText()}` is not implemented for `{leftValue}` and `{rightValue}`");
}
private object CalculateToString(ScriptBinaryOperator op, object left, object right)
{
switch (op)
{
case ScriptBinaryOperator.Add:
return ScriptValueConverter.ToString(Span, left) + ScriptValueConverter.ToString(Span, right);
case ScriptBinaryOperator.Multiply:
if (right is int)
{
var temp = left;
left = right;
right = temp;
}
if (left is int)
{
var rightText = ScriptValueConverter.ToString(Span, right);
var builder = new StringBuilder();
for (int i = 0; i < (int) left; i++)
{
builder.Append(rightText);
}
return builder.ToString();
}
throw new ScriptRuntimeException(Span, $"Operator [{op.ToText()}] is not supported for the expression [{this}]. Only working on string x int or int x string"); // unit test: 112-binary-string-error1.txt
case ScriptBinaryOperator.CompareEqual:
return ScriptValueConverter.ToString(Span, left) == ScriptValueConverter.ToString(Span, right);
case ScriptBinaryOperator.CompareNotEqual:
return ScriptValueConverter.ToString(Span, left) != ScriptValueConverter.ToString(Span, right);
case ScriptBinaryOperator.CompareGreater:
return ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) > 0;
case ScriptBinaryOperator.CompareLess:
return ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) < 0;
case ScriptBinaryOperator.CompareGreaterOrEqual:
return ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) >= 0;
case ScriptBinaryOperator.CompareLessOrEqual:
return ScriptValueConverter.ToString(Span, left).CompareTo(ScriptValueConverter.ToString(Span, right)) <= 0;
}
// unit test: 150-range-expression-error1.out.txt
throw new ScriptRuntimeException(Span, $"Operator [{op.ToText()}] is not supported on string objects"); // unit test: 112-binary-string-error2.txt
}
