public static IfElseExpression IfElse(XzaarExpression test, XzaarExpression ifTrue, XzaarExpression ifFalse)
{
RequiresCanRead(test, "test");
RequiresCanRead(ifTrue, "ifTrue");
RequiresCanRead(ifFalse, "ifFalse");
if (test.Type != XzaarBaseTypes.Boolean && test.Type != XzaarBaseTypes.Any)
{
throw new InvalidOperationException("Argument must be boolean");
}
// only true for the '??' operator, but we don't have that in XzaarScript (yet)
//if (!XzaarTypeUtils.AreEquivalent(ifTrue.Type, ifFalse.Type))
//{
// // throw Error.ArgumentTypesMustMatch();
// throw new InvalidOperationException("Argument types must match");
//}
return(IfElseExpression.Make(test, ifTrue, ifFalse, ifTrue.Type));
}
public static IfElseExpression IfElse(XzaarExpression test, XzaarExpression ifTrue, XzaarExpression ifFalse, XzaarType type)
{
RequiresCanRead(test, "test");
RequiresCanRead(ifTrue, "ifTrue");
RequiresCanRead(ifFalse, "ifFalse");
if (test.Type != XzaarBaseTypes.Boolean)
{
// throw Error.ArgumentMustBeBoolean();
throw new InvalidOperationException("Argument must be boolean");
}
if (type != XzaarBaseTypes.Void)
{
if (!XzaarTypeUtils.AreReferenceAssignable(type, ifTrue.Type) ||
!XzaarTypeUtils.AreReferenceAssignable(type, ifFalse.Type))
{
throw new InvalidOperationException("Argument types must match");
}
}
return(IfElseExpression.Make(test, ifTrue, ifFalse, type));
}