public override void VisitLiteralExpression(LiteralExpression literalExpression)
{
var parts = literalExpression?.Value?.Split ('_');
if (parts == null || parts.Length < 2)
return;
string platformName;
switch (parts [0]) {
case "Platform.Mac":
platformName = "PlatformName.MacOSX";
break;
case "Platform.iOS":
platformName = "PlatformName.iOS";
break;
default:
return;
}
if (currentAvailability == null) {
switch (originalArgIndex) {
case 0:
currentAvailability = "Introduced";
break;
case 1:
currentAvailability = "Deprecated";
break;
case 2:
currentAvailability = "Obsoleted";
break;
case 3:
currentAvailability = "Unavailable";
break;
}
}
var attr = new InvocationExpression (currentAvailability);
attr.AddArgument (new LiteralExpression (platformName));
if (parts.Length == 2) {
switch (parts [1]) {
case "Version":
break;
case "Arch32":
attr.AddArgument (new LiteralExpression ("PlatformArchitecture.Arch32"));
break;
case "Arch64":
attr.AddArgument (new LiteralExpression ("PlatformArchitecture.Arch64"));
break;
}
} else {
for (int i = 1; i < parts.Length; i++)
attr.AddArgument (new LiteralExpression (parts [i]));
}
invocations.Add (attr);
}
static void VisitShorthandIntroducedAttribute(InvocationExpression invocationExpression,
string platformName)
{
bool isTripleVersion = invocationExpression.Arguments.Count () > 2 && invocationExpression.Arguments.Take (3).All (x => x is LiteralExpression && IsNumber(((LiteralExpression)x).Value));
invocationExpression.Target = new LiteralExpression ("Introduced");
invocationExpression.Parent.InsertChildBefore (
invocationExpression.FirstArgument,
new LiteralExpression (platformName),
InvocationExpression.ArgumentRole
);
foreach (var onlyOn64 in invocationExpression.Arguments.Skip (isTripleVersion ? 4 : 3).Take (2)) {
var onlyOn64BoolValue = onlyOn64 as LiteralExpression;
if (onlyOn64 is NamedExpression)
onlyOn64BoolValue = onlyOn64.GetChild<Expression> (
BinaryExpression.RightOperandRole) as LiteralExpression;
if (onlyOn64BoolValue != null && onlyOn64BoolValue.Value == "true")
invocationExpression.AddArgument (
new LiteralExpression ("PlatformArchitecture.Arch64"));
if (onlyOn64BoolValue != null)
onlyOn64.Remove ();
}
}
static void VisitShorthandUnavailableAttribute(LiteralExpression oldAttr, string platformName)
{
var newAttr = new InvocationExpression ("Unavailable");
newAttr.AddArgument (new LiteralExpression (platformName));
oldAttr.Parent.InsertChildBefore (oldAttr, newAttr);
oldAttr.Remove ();
}
static void VisitMacNamedIntroducedAttribute(LiteralExpression oldAttr, string macMinorVersion)
{
var newAttr = new InvocationExpression ("Introduced");
newAttr.AddArgument (new LiteralExpression ("PlatformName.MacOSX"));
newAttr.AddArgument (new LiteralExpression ("10"));
newAttr.AddArgument (new LiteralExpression (macMinorVersion));
oldAttr.Parent.InsertChildBefore (oldAttr, newAttr);
oldAttr.Remove ();
}