public override SoqlExpression Simplify()
{
Left = (SoqlBooleanExpression)Left.Simplify();
Right = (SoqlBooleanExpression)Right.Simplify();
ISoqlConstantExpression cp1 = Left as ISoqlConstantExpression;
ISoqlConstantExpression cp2 = Right as ISoqlConstantExpression;
// left subexpression is false - our node is false
if (cp1 != null && (bool)cp1.GetConstantValue() == false)
{
return(new SoqlBooleanLiteralExpression(false));
}
// right subexpression is false - our node is false
if (cp2 != null && (bool)cp2.GetConstantValue() == false)
{
return(new SoqlBooleanLiteralExpression(false));
}
// both are constant and not false - our node is true
if (cp1 != null && cp2 != null)
{
return(new SoqlBooleanLiteralExpression(true));
}
// left subexpression is true - we return the right node
if (cp1 != null && (bool)cp1.GetConstantValue() == true)
{
return(Right);
}
// right subexpression is true - we return the left node
if (cp2 != null && (bool)cp2.GetConstantValue() == true)
{
return(Left);
}
// cannot simplify anymore
return(this);
}
public override SoqlExpression Simplify()
{
par1 = (SoqlBooleanExpression)par1.Simplify();
par2 = (SoqlBooleanExpression)par2.Simplify();
ISoqlConstantExpression cp1 = par1 as ISoqlConstantExpression;
ISoqlConstantExpression cp2 = par2 as ISoqlConstantExpression;
// left subexpression is true - our node is true
if (cp1 != null && (bool)cp1.GetConstantValue() == true)
{
return(new SoqlBooleanLiteralExpression(true));
}
// right subexpression is true - our node is true
if (cp2 != null && (bool)cp2.GetConstantValue() == true)
{
return(new SoqlBooleanLiteralExpression(true));
}
// both are constant and false - our node is false
if (cp1 != null && cp2 != null)
{
return(new SoqlBooleanLiteralExpression(false));
}
if (cp1 != null && (bool)cp1.GetConstantValue() == false)
{
return(par2);
}
if (cp2 != null && (bool)cp2.GetConstantValue() == false)
{
return(par1);
}
return(this);
}
public override SoqlExpression Simplify()
{
par = (SoqlBooleanExpression)par.Simplify();
return(this);
}
