protected override string CalculateValue()
{
if (LeftCompiler.IsLiteral && RightCompiler.IsLiteral)
{
EV3Type commonType = CalculateCommonType(LeftCompiler.Type, RightCompiler.Type);
if (commonType.IsArray() || commonType == EV3Type.Unknown)
{
return(null);
}
if (commonType.IsNumber())
{
float leftValue = SmallBasicExtensions.ParseFloat(LeftCompiler.Value);
float rightValue = SmallBasicExtensions.ParseFloat(RightCompiler.Value);
switch (ParentExpression.Operator.Token)
{
case Token.Addition:
return(SmallBasicExtensions.FormatFloat(leftValue + rightValue));
case Token.Subtraction:
return(SmallBasicExtensions.FormatFloat(leftValue - rightValue));
case Token.Division:
return(SmallBasicExtensions.FormatFloat(leftValue / rightValue));
case Token.Multiplication:
return(SmallBasicExtensions.FormatFloat(leftValue * rightValue));
}
}
else
{
if (ParentExpression.Operator.Token == Token.Addition)
{
string leftValue = LeftCompiler.Value.Trim('\'');
if (LeftCompiler.Type.IsNumber())
{
leftValue = SmallBasicExtensions.FormatFloat(leftValue);
}
string rightValue = RightCompiler.Value.Trim('\'');
if (RightCompiler.Type.IsNumber())
{
rightValue = SmallBasicExtensions.FormatFloat(rightValue);
}
return('\'' + leftValue + rightValue + '\'');
}
}
}
return(null);
}
protected override string CalculateValue()
{
if (Type != EV3Type.Boolean)
{
return(null);
}
if (LeftCompiler.IsLiteral && RightCompiler.IsLiteral)
{
if (LeftCompiler.Type.IsNumber())
{
float leftValue = SmallBasicExtensions.ParseFloat(LeftCompiler.Value);
float rightValue = SmallBasicExtensions.ParseFloat(RightCompiler.Value);
switch (ParentExpression.Operator.Token)
{
case Token.Equals:
return(SmallBasicExtensions.FormatBoolean(leftValue == rightValue));
case Token.NotEqualTo:
return(SmallBasicExtensions.FormatBoolean(leftValue != rightValue));
case Token.LessThan:
return(SmallBasicExtensions.FormatBoolean(leftValue < rightValue));
case Token.LessThanEqualTo:
return(SmallBasicExtensions.FormatBoolean(leftValue <= rightValue));
case Token.GreaterThan:
return(SmallBasicExtensions.FormatBoolean(leftValue > rightValue));
case Token.GreaterThanEqualTo:
return(SmallBasicExtensions.FormatBoolean(leftValue >= rightValue));
}
}
else
{
switch (ParentExpression.Operator.Token)
{
case Token.Equals:
return(SmallBasicExtensions.FormatBoolean(LeftCompiler.Value == RightCompiler.Value));
case Token.NotEqualTo:
return(SmallBasicExtensions.FormatBoolean(LeftCompiler.Value != RightCompiler.Value));
}
}
}
return(null);
}
protected override string CalculateValue()
{
if (Type.IsNumber())
{
if (IsLiteral)
{
return(SmallBasicExtensions.FormatFloat(-SmallBasicExtensions.ParseFloat(ParentExpression.Expression.Compiler().Value)));
}
}
else
{
AddError("Need number after minus");
}
return(null);
}