public IOWrapper(RubyContext /*!*/ context, object io, bool canRead, bool canWrite, bool canSeek, bool canFlush, bool canBeClosed)
{
Assert.NotNull(context);
_writeSite = CallSite <Func <CallSite, object, MutableString, object> > .Create(
RubyCallAction.Make(context, "write", RubyCallSignature.WithImplicitSelf(1))
);
_readSite = CallSite <Func <CallSite, object, int, object> > .Create(
RubyCallAction.Make(context, "read", RubyCallSignature.WithImplicitSelf(1))
);
_seekSite = CallSite <Func <CallSite, object, long, int, object> > .Create(
RubyCallAction.Make(context, "seek", RubyCallSignature.WithImplicitSelf(2))
);
_tellSite = CallSite <Func <CallSite, object, object> > .Create(
RubyCallAction.Make(context, "tell", RubyCallSignature.WithImplicitSelf(0))
);
_obj = io;
_canRead = canRead;
_canWrite = canWrite;
_canSeek = canSeek;
_canFlush = canFlush;
_canBeClosed = canBeClosed;
_buffer = new byte[_bufferSize];
_writePos = 0;
_readPos = 0;
_readLen = 0;
}
// when [<expr>, ...] *<array>
private static MSA.Expression /*!*/ MakeArrayTest(AstGenerator /*!*/ gen, MSA.Expression /*!*/ array, MSA.Expression value)
{
return(Methods.ExistsUnsplat.OpCall(
Ast.Constant(CallSite <Func <CallSite, object, object, object> > .Create(
RubyCallAction.Make(gen.Context, "===", RubyCallSignature.WithImplicitSelf(2))
)),
AstUtils.LightDynamic(ConvertToArraySplatAction.Make(gen.Context), array),
AstUtils.Box(value)
));
}
public RubyConstructor(RubyGlobalScope /*!*/ scope, NodeProvider /*!*/ nodeProvider)
: base(nodeProvider, scope)
{
_encoding = RubyEncoding.GetRubyEncoding(nodeProvider.Encoding);
_newSite = CallSite <Func <CallSite, RubyModule, object, object, object, object> > .Create(
RubyCallAction.Make(scope.Context, "new", RubyCallSignature.WithImplicitSelf(3))
);
_yamlInitializeSite = CallSite <Func <CallSite, object, object, Hash, object> > .Create(
RubyCallAction.Make(scope.Context, "yaml_initialize", RubyCallSignature.WithImplicitSelf(3))
);
}
private Expression /*!*/ ToA(CallArguments /*!*/ args, Expression /*!*/ targetClassNameConstant)
{
return
// TODO(opt): We could optimize this a bit by merging the to_a call with the conversion.
// We could also check if to_a is implemented on Kernel. If so it only wraps the item into an array
// that the subsequent splatting operation unwraps. However this only applies when unpslatting non-splattable objects
// that don't implement to_ary - probably a rare case.
(Methods.ToArrayValidator.OpCall(
targetClassNameConstant,
AstUtils.LightDynamic(
RubyCallAction.Make(args.RubyContext, "to_a", RubyCallSignature.WithImplicitSelf(0)),
args.TargetExpression
)
));
}
internal RubyPropertyDescriptor(RubyContext /*!*/ context, string /*!*/ name, object testObject, Type /*!*/ componentType)
: base(name, null)
{
_name = name;
_componentType = componentType;
_getterSite = CallSite <Func <CallSite, object, object> > .Create(
RubyCallAction.Make(context, _name, RubyCallSignature.WithImplicitSelf(0))
);
_setterSite = CallSite <Func <CallSite, object, object, object> > .Create(
RubyCallAction.Make(context, _name + "=", RubyCallSignature.WithImplicitSelf(0))
);
try {
_propertyType = GetValue(testObject).GetType();
} catch (Exception) {
_propertyType = typeof(object);
}
}
internal static void BuildConversion(MetaObjectBuilder /*!*/ metaBuilder, CallArguments /*!*/ args, Type /*!*/ resultType,
params ProtocolConversionAction /*!*/[] /*!*/ conversions)
{
Assert.NotNull(metaBuilder, args, conversions);
Debug.Assert(args.SimpleArgumentCount == 0 && !args.Signature.HasBlock && !args.Signature.HasSplattedArgument && !args.Signature.HasRhsArgument);
Debug.Assert(!args.Signature.HasScope);
// implicit conversions should only depend on the static type:
foreach (var conversion in conversions)
{
if (conversion.TryImplicitConversion(metaBuilder, args))
{
metaBuilder.AddObjectTypeRestriction(args.Target, args.TargetExpression);
if (!metaBuilder.Error)
{
metaBuilder.Result = ConvertResult(metaBuilder.Result, resultType);
}
return;
}
}
RubyClass targetClass = args.RubyContext.GetImmediateClassOf(args.Target);
Expression targetClassNameConstant = AstUtils.Constant(targetClass.GetNonSingletonClass().Name, typeof(string));
MethodResolutionResult respondToMethod, methodMissing = MethodResolutionResult.NotFound;
ProtocolConversionAction selectedConversion = null;
RubyMemberInfo conversionMethod = null;
using (targetClass.Context.ClassHierarchyLocker()) {
// check for type version:
metaBuilder.AddTargetTypeTest(args.Target, targetClass, args.TargetExpression, args.MetaContext,
ArrayUtils.Insert(Symbols.RespondTo, Symbols.MethodMissing, ArrayUtils.ConvertAll(conversions, (c) => c.ToMethodName))
);
// we can optimize if Kernel#respond_to? method is not overridden:
respondToMethod = targetClass.ResolveMethodForSiteNoLock(Symbols.RespondTo, VisibilityContext.AllVisible);
if (respondToMethod.Found && respondToMethod.Info.DeclaringModule == targetClass.Context.KernelModule && respondToMethod.Info is RubyLibraryMethodInfo) // TODO: better override detection
{
respondToMethod = MethodResolutionResult.NotFound;
// get the first applicable conversion:
foreach (var conversion in conversions)
{
selectedConversion = conversion;
conversionMethod = targetClass.ResolveMethodForSiteNoLock(conversion.ToMethodName, VisibilityContext.AllVisible).Info;
if (conversionMethod != null)
{
break;
}
else
{
// find method_missing - we need to add "to_xxx" methods to the missing methods table:
if (!methodMissing.Found)
{
methodMissing = targetClass.ResolveMethodNoLock(Symbols.MethodMissing, VisibilityContext.AllVisible);
}
methodMissing.InvalidateSitesOnMissingMethodAddition(conversion.ToMethodName, targetClass.Context);
}
}
}
}
if (!respondToMethod.Found)
{
if (conversionMethod == null)
{
// error:
selectedConversion.SetError(metaBuilder, args, targetClassNameConstant, resultType);
return;
}
else
{
// invoke target.to_xxx() and validate it; returns an instance of TTargetType:
conversionMethod.BuildCall(metaBuilder, args, selectedConversion.ToMethodName);
if (!metaBuilder.Error)
{
metaBuilder.Result = ConvertResult(
selectedConversion.MakeValidatorCall(args, targetClassNameConstant, metaBuilder.Result),
resultType
);
}
return;
}
}
// slow path: invoke respond_to?, to_xxx and result validation:
for (int i = conversions.Length - 1; i >= 0; i--)
{
string toMethodName = conversions[i].ToMethodName;
var conversionCallSite = AstUtils.LightDynamic(
RubyCallAction.Make(args.RubyContext, toMethodName, RubyCallSignature.WithImplicitSelf(0)),
args.TargetExpression
);
metaBuilder.Result = Ast.Condition(
// If
// respond_to?()
Methods.IsTrue.OpCall(
AstUtils.LightDynamic(
RubyCallAction.Make(args.RubyContext, Symbols.RespondTo, RubyCallSignature.WithImplicitSelf(1)),
args.TargetExpression,
Ast.Constant(args.RubyContext.CreateSymbol(toMethodName, RubyEncoding.Binary))
)
),
// Then
// to_xxx():
ConvertResult(
conversions[i].MakeValidatorCall(args, targetClassNameConstant, conversionCallSite),
resultType
),
// Else
(i < conversions.Length - 1) ? metaBuilder.Result :
conversions[i].MakeErrorExpression(args, targetClassNameConstant, resultType)
);
}
}
// friend: RubyContext
internal EqualityComparer(RubyContext /*!*/ context)
: this(
CallSite <Func <CallSite, object, object> > .Create(RubyCallAction.Make(context, "hash", RubyCallSignature.WithImplicitSelf(0))),
CallSite <Func <CallSite, object, object, object> > .Create(RubyCallAction.Make(context, "eql?", RubyCallSignature.WithImplicitSelf(1)))
)
{
}
// when <expr>
// generates into:
// RubyOps.IsTrue(<expr>) if the case has no value, otherise:
// RubyOps.IsTrue(Call("===", <expr>, <value>))
private static MSA.Expression /*!*/ MakeTest(AstGenerator /*!*/ gen, Expression /*!*/ expr, MSA.Expression value)
{
MSA.Expression transformedExpr = expr.TransformRead(gen);
if (expr is SplattedArgument)
{
if (value != null)
{
return(Methods.ExistsUnsplatCompare.OpCall(
Ast.Constant(CallSite <Func <CallSite, object, object, object> > .Create(
RubyCallAction.Make(gen.Context, "===", RubyCallSignature.WithImplicitSelf(2))
)),
AstUtils.LightDynamic(ExplicitTrySplatAction.Make(gen.Context), transformedExpr),
AstUtils.Box(value)
));
}
else
{
return(Methods.ExistsUnsplat.OpCall(
AstUtils.LightDynamic(ExplicitTrySplatAction.Make(gen.Context), transformedExpr)
));
}
}
else
{
if (value != null)
{
return(AstFactory.IsTrue(
CallSiteBuilder.InvokeMethod(gen.Context, "===", RubyCallSignature.WithScope(1),
gen.CurrentScopeVariable,
transformedExpr,
value
)
));
}
else
{
return(AstFactory.IsTrue(transformedExpr));
}
}
}
/// <summary>
/// This is called by the IronRuby runtime to set the backtrace for an exception that has being raised.
/// Note that the backtrace may be set directly by user code as well. However, that uses a different code path.
/// </summary>
private void DynamicSetBacktrace(RubyContext /*!*/ context, RubyArray backtrace)
{
if (_setBacktraceCallSite == null)
{
Interlocked.CompareExchange(ref _setBacktraceCallSite, CallSite <Func <CallSite, RubyContext, Exception, RubyArray, object> > .
Create(RubyCallAction.MakeShared("set_backtrace", RubyCallSignature.WithImplicitSelf(1))), null);
}
_setBacktraceCallSite.Target(_setBacktraceCallSite, context, _exception, backtrace);
}