public static UnaryExpression Decrementor(XzaarExpression item)
{
return(UnaryOperation(item, ExpressionType.Decrement));
}
public FunctionCallExpression1(FunctionExpression method, XzaarExpression arg0)
: base(method)
{
_arg0 = arg0;
}
public FunctionCallExpression3(FunctionExpression method, XzaarExpression arg0, XzaarExpression arg1, XzaarExpression arg2)
: base(method)
{
_arg0 = arg0;
_arg1 = arg1;
_arg2 = arg2;
}
public static FunctionCallExpression ArrayIndex(XzaarExpression array, params XzaarExpression[] indexes)
{
return(ArrayIndex(array, (IEnumerable <XzaarExpression>)indexes));
}
public InstanceFunctionCallExpressionN(FunctionExpression method, XzaarExpression instance, IList <XzaarExpression> args)
: base(method)
{
_instance = instance;
arguments = args;
}
public LoopExpression Update(LabelTarget breakLabel, LabelTarget continueLabel, XzaarExpression body)
{
if (breakLabel == BreakLabel && continueLabel == ContinueLabel && body == Body)
{
return(this);
}
return(XzaarExpression.Loop(body, breakLabel, continueLabel));
}
public static LoopExpression Loop(XzaarExpression body, LabelTarget @break)
{
return(Loop(body, @break, null));
}
public static IfElseExpression IfThen(XzaarExpression test, XzaarExpression ifTrue)
{
return(IfElse(test, ifTrue, XzaarExpression.Empty(), XzaarBaseTypes.Void));
}
public static IfElseExpression IfThenElse(XzaarExpression test, XzaarExpression ifTrue, XzaarExpression ifFalse)
{
return(IfElse(test, ifTrue, ifFalse, XzaarBaseTypes.Void));
}
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));
}
public static ConditionalExpression Conditional(XzaarExpression test, XzaarExpression whenTrue, XzaarExpression whenFalse, XzaarType type)
{
return(new ConditionalExpression(test, whenTrue, whenFalse, type));
}
internal FullIfElseExpressionWithType(XzaarExpression test, XzaarExpression ifTrue, XzaarExpression ifFalse, XzaarType type)
: base(test, ifTrue, ifFalse)
{
_type = type;
}
internal FullIfElseExpression(XzaarExpression test, XzaarExpression ifTrue, XzaarExpression ifFalse)
: base(test, ifTrue)
{
_false = ifFalse;
}
internal FunctionExpression(string name, ParameterExpression[] parameters, XzaarType returnType, XzaarExpression body, bool isExtern)
{
this.name = name;
this.Parameters = parameters;
this.returnType = returnType;
this.body = body;
this.IsExtern = isExtern;
}
internal IfElseExpression(XzaarExpression test, XzaarExpression ifTrue)
{
this.test = test;
this.ifTrue = ifTrue;
}
public FunctionExpression SetBody(XzaarExpression body)
{
this.body = body;
return(this);
}
internal static IfElseExpression Make(XzaarExpression test, XzaarExpression ifTrue, XzaarExpression ifFalse, XzaarType type)
{
if (ifTrue.Type != type || ifFalse.Type != type)
{
return(new FullIfElseExpressionWithType(test, ifTrue, ifFalse, type));
}
if (ifFalse is DefaultExpression && ifFalse.Type == XzaarBaseTypes.Void)
{
return(new IfElseExpression(test, ifTrue));
}
else
{
return(new FullIfElseExpression(test, ifTrue, ifFalse));
}
}
public static LoopExpression Loop(XzaarExpression body)
{
return(Loop(body, null));
}
internal virtual XzaarExpression GetFalse()
{
return(XzaarExpression.Empty());
}
private static XzaarExpression ValidateOneArgument(XzaarMethodBase method, ExpressionType nodeKind, XzaarExpression arg, XzaarParameterInfo pi)
{
// this is most likely an 'Any' object
if (pi == null)
{
return(arg);
}
RequiresCanRead(arg, "arguments");
var pType = pi.ParameterType;
if (pType.IsByRef)
{
pType = pType.GetElementType();
}
// XzaarTypeUtils.ValidateType(pType);
if (!XzaarTypeUtils.AreReferenceAssignable(pType, arg.Type))
{
if (!TryQuote(pType, ref arg))
{
// Throw the right error for the node we were given
switch (nodeKind)
{
case ExpressionType.New:
throw new InvalidOperationException();
// throw Error.ExpressionTypeDoesNotMatchConstructorParameter(arg.Type, pType);
case ExpressionType.Invoke:
throw new InvalidOperationException();
// throw Error.ExpressionTypeDoesNotMatchParameter(arg.Type, pType);
case ExpressionType.Dynamic:
case ExpressionType.Call:
throw new InvalidOperationException();
// throw Error.ExpressionTypeDoesNotMatchMethodParameter(arg.Type, pType, method);
default:
throw new InvalidOperationException();
// throw ContractUtils.Unreachable;
}
}
}
return(arg);
}
public static GotoExpression MakeGoto(GotoExpressionKind kind, LabelTarget target, XzaarExpression value, XzaarType type)
{
ValidateGoto(target, ref value, "target", "value");
return(new GotoExpression(kind, target, value, type));
}
internal virtual FunctionCallExpression Rewrite(XzaarExpression instance, IList <XzaarExpression> args)
{
throw new InvalidOperationException();
}
public static GotoExpression Break(LabelTarget target, XzaarExpression value)
{
return(MakeGoto(GotoExpressionKind.Break, target, value, XzaarBaseTypes.Void));
}
private object _arg0; // storage for the 1st argument or a readonly collection. See IArgumentProvider
public FunctionCallExpression1(XzaarMethodBase method, XzaarExpression arg0)
: base(method)
{
_arg0 = arg0;
}
public static GotoExpression Break(LabelTarget target, XzaarExpression value, XzaarType type)
{
return(MakeGoto(GotoExpressionKind.Break, target, value, type));
}
public FunctionCallExpression2(FunctionExpression method, XzaarExpression arg0, XzaarExpression arg1)
: base(method)
{
_arg0 = arg0;
_arg1 = arg1;
}
public static FunctionExpression Function(string name, ParameterExpression[] parameters, XzaarType returnType, XzaarExpression body, bool isExtern)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
return(new FunctionExpression(name, parameters, returnType, body, isExtern));
}
private readonly XzaarExpression _arg1, _arg2, _arg3; // storage for the 2nd - 4th args.
public FunctionCallExpression4(XzaarMethodBase method, XzaarExpression arg0, XzaarExpression arg1, XzaarExpression arg2, XzaarExpression arg3)
: base(method)
{
_arg0 = arg0;
_arg1 = arg1;
_arg2 = arg2;
_arg3 = arg3;
}
public static UnaryExpression PostDecrementor(XzaarExpression item)
{
return(UnaryOperation(item, ExpressionType.PostDecrementAssign));
}
