public IMarshallingGenerator Create(TypePositionInfo info, StubCodeContext context)
{
Debug.Assert(context != null);
if (info.IsByRef || info.ByValueContentsMarshalKind != ByValueContentsMarshalKind.Default)
{
// out of scope for Net7.0
throw new MarshallingNotSupportedException(info, context)
{
NotSupportedDetails = SR.InOutRefNotSupported
};
}
JSMarshallingInfo jsMarshalingInfo = info.MarshallingAttributeInfo as JSMarshallingInfo;
Exception fail(string failReason)
{
return(new MarshallingNotSupportedException(info, context)
{
NotSupportedDetails = failReason
});
}
bool isToJs = info.ManagedIndex != TypePositionInfo.ReturnIndex ^ context is JSExportCodeContext;
switch (info)
{
// invalid
case { ManagedType: JSInvalidTypeInfo } :
/// <summary>
/// Create a <see cref="StubCodeContext"/> for marshalling elements of an collection.
/// </summary>
/// <param name="currentStage">The current marshalling stage.</param>
/// <param name="indexerIdentifier">The indexer in the loop to get the element to marshal from the collection.</param>
/// <param name="nativeSpanIdentifier">The identifier of the native value storage cast to the target element type.</param>
/// <param name="parentContext">The parent context.</param>
public ContiguousCollectionElementMarshallingCodeContext(
Stage currentStage,
string nativeSpanIdentifier,
StubCodeContext parentContext)
{
CurrentStage = currentStage;
IndexerIdentifier = CalculateIndexerIdentifierBasedOnParentContext(parentContext);
_nativeSpanIdentifier = nativeSpanIdentifier;
ParentContext = parentContext;
}
public virtual IEnumerable <StatementSyntax> Generate(TypePositionInfo info, StubCodeContext context)
{
string argName = context.GetAdditionalIdentifier(info, "js_arg");
if (context.CurrentStage == StubCodeContext.Stage.Setup)
{
if (!info.IsManagedReturnPosition)
{
yield return(LocalDeclarationStatement(VariableDeclaration(RefType(IdentifierName(Constants.JSMarshalerArgumentGlobal)))
.WithVariables(SingletonSeparatedList(VariableDeclarator(Identifier(argName))
.WithInitializer(EqualsValueClause(RefExpression(ElementAccessExpression(IdentifierName(Constants.ArgumentsBuffer))
.WithArgumentList(BracketedArgumentList(SingletonSeparatedList(
Argument(LiteralExpression(SyntaxKind.NumericLiteralExpression, Literal(info.ManagedIndex + 2)))))))))))));
}
}
foreach (var x in _inner.Generate(info, context))
{
yield return(x);
}
}
public override IEnumerable <ExpressionSyntax> GenerateBind(TypePositionInfo info, StubCodeContext context)
{
yield return(InvocationExpression(MarshalerTypeName(Type),
ArgumentList(SingletonSeparatedList(Argument(MarshalerTypeName(_elementMarshalerType))))));
}
public virtual IEnumerable <ExpressionSyntax> GenerateBind(TypePositionInfo info, StubCodeContext context)
{
yield return(MarshalerTypeName(Type));
}
public bool SupportsByValueMarshalKind(ByValueContentsMarshalKind marshalKind, StubCodeContext context) => _inner.SupportsByValueMarshalKind(marshalKind, context);
public ValueBoundaryBehavior GetValueBoundaryBehavior(TypePositionInfo info, StubCodeContext context) => _inner.GetValueBoundaryBehavior(info, context);
public IEnumerable <ExpressionSyntax> GenerateBind(TypePositionInfo info, StubCodeContext context) => Array.Empty <ExpressionSyntax>();
public override IEnumerable <ExpressionSyntax> GenerateBind(TypePositionInfo info, StubCodeContext context)
{
var args = _argumentMarshalerTypes.Select(x => Argument(MarshalerTypeName(x))).ToList();
yield return(InvocationExpression(MarshalerTypeName(Type), ArgumentList(SeparatedList(args))));
}
public override IEnumerable <StatementSyntax> Generate(TypePositionInfo info, StubCodeContext context)
{
var maxArgs = _isAction ? 3 : 4;
if (_argumentMarshalerTypes.Length > maxArgs)
{
throw new MarshallingNotSupportedException(info, context)
{
NotSupportedDetails = SR.FuncTooManyArgs
};
}
string argName = context.GetAdditionalIdentifier(info, "js_arg");
var target = info.IsManagedReturnPosition
? Constants.ArgumentReturn
: argName;
var source = info.IsManagedReturnPosition
? Argument(IdentifierName(context.GetIdentifiers(info).native))
: _inner.AsArgument(info, context);
var jsty = (JSFunctionTypeInfo)info.ManagedType;
var sourceTypes = jsty.ArgsTypeInfo
.Select(a => ParseTypeName(a.FullTypeName))
.ToArray();
if (context.CurrentStage == StubCodeContext.Stage.Unmarshal && context.Direction == CustomTypeMarshallingDirection.In && info.IsManagedReturnPosition)
{
yield return(ToManagedMethod(target, source, jsty));
}
if (context.CurrentStage == StubCodeContext.Stage.Marshal && context.Direction == CustomTypeMarshallingDirection.Out && info.IsManagedReturnPosition)
{
yield return(ToJSMethod(target, source, jsty));
}
foreach (var x in base.Generate(info, context))
{
yield return(x);
}
if (context.CurrentStage == StubCodeContext.Stage.Invoke && context.Direction == CustomTypeMarshallingDirection.In && !info.IsManagedReturnPosition)
{
yield return(ToJSMethod(target, source, jsty));
}
if (context.CurrentStage == StubCodeContext.Stage.Unmarshal && context.Direction == CustomTypeMarshallingDirection.Out && !info.IsManagedReturnPosition)
{
yield return(ToManagedMethod(target, source, jsty));
}
}
public bool UsesNativeIdentifier(TypePositionInfo info, StubCodeContext context) => false;
public bool SupportsByValueMarshalKind(ByValueContentsMarshalKind marshalKind, StubCodeContext context) => false;
public ValueBoundaryBehavior GetValueBoundaryBehavior(TypePositionInfo info, StubCodeContext context) => ValueBoundaryBehavior.ManagedIdentifier;
public override IEnumerable <ExpressionSyntax> GenerateBind(TypePositionInfo info, StubCodeContext context)
{
var jsty = (JSTaskTypeInfo)info.ManagedType;
if (jsty.ResultTypeInfo.FullTypeName == "void")
{
yield return(InvocationExpression(MarshalerTypeName(MarshalerType.Task), ArgumentList()));
}
else
{
yield return(InvocationExpression(MarshalerTypeName(MarshalerType.Task),
ArgumentList(SingletonSeparatedList(Argument(MarshalerTypeName(_resultMarshalerType))))));
}
}
public virtual bool UsesNativeIdentifier(TypePositionInfo info, StubCodeContext context) => _inner.UsesNativeIdentifier(info, context);
public override IEnumerable <StatementSyntax> Generate(TypePositionInfo info, StubCodeContext context)
{
var jsty = (JSTaskTypeInfo)info.ManagedType;
string argName = context.GetAdditionalIdentifier(info, "js_arg");
var target = info.IsManagedReturnPosition
? Constants.ArgumentReturn
: argName;
var source = info.IsManagedReturnPosition
? Argument(IdentifierName(context.GetIdentifiers(info).native))
: _inner.AsArgument(info, context);
if (context.CurrentStage == StubCodeContext.Stage.Unmarshal && context.Direction == CustomTypeMarshallingDirection.In && info.IsManagedReturnPosition)
{
yield return(jsty.ResultTypeInfo.FullTypeName == "void"
? ToManagedMethodVoid(target, source)
: ToManagedMethod(target, source, jsty.ResultTypeInfo.Syntax));
}
if (context.CurrentStage == StubCodeContext.Stage.Marshal && context.Direction == CustomTypeMarshallingDirection.Out && info.IsManagedReturnPosition)
{
yield return(jsty.ResultTypeInfo.FullTypeName == "void"
? ToJSMethodVoid(target, source)
: ToJSMethod(target, source, jsty.ResultTypeInfo.Syntax));
}
foreach (var x in base.Generate(info, context))
{
yield return(x);
}
if (context.CurrentStage == StubCodeContext.Stage.Invoke && context.Direction == CustomTypeMarshallingDirection.In && !info.IsManagedReturnPosition)
{
yield return(jsty.ResultTypeInfo.FullTypeName == "void"
? ToJSMethodVoid(target, source)
: ToJSMethod(target, source, jsty.ResultTypeInfo.Syntax));
}
if (context.CurrentStage == StubCodeContext.Stage.Unmarshal && context.Direction == CustomTypeMarshallingDirection.Out && !info.IsManagedReturnPosition)
{
yield return(jsty.ResultTypeInfo.FullTypeName == "void"
? ToManagedMethodVoid(target, source)
: ToManagedMethod(target, source, jsty.ResultTypeInfo.Syntax));
}
}
public IEnumerable <StatementSyntax> Generate(TypePositionInfo info, StubCodeContext context) => Array.Empty <StatementSyntax>();
