public CppMarshalManagedToNative(Options options, MarshalContext marshalContext)
: base(marshalContext)
{
Options = options;
UnboxPrimitiveValues = true;
}
public override bool VisitManagedArrayType(ManagedArrayType array,
TypeQualifiers quals)
{
var support = Context.SupportBefore;
var arrayId = CGenerator.GenId($"{Context.ArgName}_array");
support.WriteLine("MonoArray* {0} = (MonoArray*) {1};",
arrayId, Context.ArgName);
var arraySizeId = CGenerator.GenId($"{Context.ArgName}_array_size");
support.WriteLine("uintptr_t {0} = mono_array_length({1});",
arraySizeId, arrayId);
var typePrinter = CppTypePrinter;
typePrinter.PrintScopeKind = TypePrintScopeKind.Local;
var arrayTypedefName = array.Typedef.Visit(typePrinter);
typePrinter.PrintScopeKind = TypePrintScopeKind.Qualified;
var arrayElementName = array.Array.Type.Visit(typePrinter);
var elementSize = $"sizeof({arrayElementName})";
var nativeArrayId = CGenerator.GenId($"{Context.ArgName}_native_array");
support.WriteLine("{0} {1};", arrayTypedefName, nativeArrayId);
support.WriteLine("{0}.array = g_array_sized_new(/*zero_terminated=*/FALSE," +
" /*clear_=*/TRUE, {1}, {2});", nativeArrayId, elementSize, arraySizeId);
var elementClassId = CGenerator.GenId($"{Context.ArgName}_element_class");
support.WriteLine("MonoClass* {0} = mono_class_get_element_class({1});",
elementClassId,
CppMarshalNativeToManaged.GenerateArrayTypeLookup(array.Array.Type, support));
var elementSizeId = CGenerator.GenId($"{Context.ArgName}_array_element_size");
support.WriteLine("gint32 {0} = mono_class_array_element_size({1});",
elementSizeId, elementClassId);
var iteratorId = CGenerator.GenId("i");
support.WriteLine("for (int {0} = 0; {0} < {1}; {0}++)",
iteratorId, arraySizeId);
support.WriteStartBraceIndent();
var elementId = CGenerator.GenId($"{Context.ArgName}_array_element");
var isValueType = CppMarshalNativeToManaged.IsValueType(array.Array.Type);
support.WriteLine("{5} {0} = {4}mono_array_addr_with_size({1}, {2}, {3});",
elementId, arrayId, elementSizeId, iteratorId,
isValueType ? string.Empty : "*(MonoObject**)",
isValueType ? "char*" : "MonoObject*");
var ctx = new MarshalContext(Context.Context)
{
ArgName = elementId,
ReturnVarName = elementId,
ReturnType = array.Array.QualifiedType
};
var marshal = new CppMarshalManagedToNative(Options, ctx)
{
UnboxPrimitiveValues = false
};
array.Array.QualifiedType.Visit(marshal);
if (!string.IsNullOrWhiteSpace(marshal.Context.SupportBefore))
{
support.Write(marshal.Context.SupportBefore.ToString());
}
support.WriteLine("g_array_append_val({0}.array, {1});", nativeArrayId,
marshal.Context.Return.ToString());
support.WriteCloseBraceIndent();
Context.Return.Write("{0}", nativeArrayId);
return(false);
}
public CppMarshalNativeToManaged(Options options, MarshalContext marshalContext)
: base(marshalContext)
{
Options = options;
PrimitiveValuesByValue = false;
}
public override bool VisitManagedArrayType(ManagedArrayType array,
TypeQualifiers quals)
{
var support = Context.SupportBefore;
var contextId = CGenerator.GenId("mono_context");
var arrayId = CGenerator.GenId($"{Context.ArgName}_array");
var elementClassId = CGenerator.GenId($"{Context.ArgName}_element_class");
var managedArray = array.Array;
var elementType = managedArray.Type;
support.WriteLine("MonoClass* {0} = mono_class_get_element_class({1});",
elementClassId, GenerateArrayTypeLookup(elementType, support));
support.WriteLine("MonoArray* {0} = mono_array_new({1}.domain, {2}, {3}.array->len);",
arrayId, contextId, elementClassId, Context.ArgName);
var iteratorId = CGenerator.GenId("i");
support.WriteLine("for (int {0} = 0; {0} < {1}.array->len; {0}++)",
iteratorId, Context.ArgName);
support.WriteStartBraceIndent();
var typePrinter = CppTypePrinter;
string elementTypeName = elementType.Visit(typePrinter);
var elementId = CGenerator.GenId($"{Context.ArgName}_array_element");
support.WriteLine("{0} {1} = g_array_index({2}.array, {0}, {3});",
elementTypeName, elementId, Context.ArgName, iteratorId);
var ctx = new MarshalContext(Context.Context)
{
ArgName = elementId,
};
var marshal = new CppMarshalNativeToManaged(Options, ctx)
{
PrimitiveValuesByValue = true
};
elementType.Visit(marshal);
if (!string.IsNullOrWhiteSpace(marshal.Context.SupportBefore))
{
support.Write(marshal.Context.SupportBefore.ToString());
}
var isValueType = IsValueType(elementType);
if (isValueType)
{
support.WriteLine("mono_array_set({0}, {1}, {2}, {3});",
arrayId, elementTypeName, iteratorId,
marshal.Context.Return.ToString());
}
else
{
support.WriteLine("mono_array_setref({0}, {1}, {2});",
arrayId, iteratorId, marshal.Context.Return.ToString());
}
support.WriteCloseBraceIndent();
Context.Return.Write("{0}", arrayId);
return(true);
}
public void GenerateMethodInvocation(Method method)
{
GenerateMethodInitialization(method);
NewLine();
var paramsToMarshal = method.Parameters.Where(p => !p.IsImplicit);
var numParamsToMarshal = paramsToMarshal.Count();
var argsId = "0";
if (numParamsToMarshal > 0)
{
argsId = GeneratedIdentifier("args");
WriteLine($"void* {argsId}[{numParamsToMarshal}];");
}
var contexts = new List <MarshalContext>();
int paramIndex = 0;
foreach (var param in paramsToMarshal)
{
var ctx = new MarshalContext(Context)
{
ArgName = param.Name,
Parameter = param,
ParameterIndex = paramIndex
};
contexts.Add(ctx);
var marshal = new CMarshalNativeToManaged(EmbedOptions, ctx);
param.QualifiedType.Visit(marshal);
if (!string.IsNullOrWhiteSpace(marshal.Context.SupportBefore))
{
Write(marshal.Context.SupportBefore);
}
WriteLine($"{argsId}[{paramIndex++}] = {marshal.Context.Return};");
}
var exceptionId = GeneratedIdentifier("exception");
WriteLine($"MonoObject* {exceptionId} = 0;");
var resultId = GeneratedIdentifier("result");
WriteLine($"MonoObject* {resultId};");
var methodId = GeneratedIdentifier("method");
var instanceId = method.IsStatic ? "0" : GeneratedIdentifier("instance");
WriteLine("{0} = mono_runtime_invoke({1}, {2}, {3}, &{4});", resultId,
methodId, instanceId, argsId, exceptionId);
NewLine();
WriteLine($"if ({exceptionId})");
WriteStartBraceIndent();
if (method.IsConstructor)
{
WriteLine("free(object);");
}
WriteLine($"mono_embeddinator_throw_exception({exceptionId});");
if (method.IsConstructor)
{
WriteLine("return 0;");
}
WriteCloseBraceIndent();
foreach (var marshalContext in contexts)
{
if (!string.IsNullOrWhiteSpace(marshalContext.SupportAfter))
{
Write(marshalContext.SupportAfter);
}
}
}
public void GenerateMethodInvocation(Method method)
{
var contexts = new List <MarshalContext>();
var @params = new List <string>();
if (!method.IsStatic && !(method.IsConstructor || method.IsDestructor))
{
@params.Add("__object");
}
int paramIndex = 0;
foreach (var param in method.Parameters.Where(m => !m.IsImplicit))
{
var ctx = new MarshalContext(Context)
{
ArgName = param.Name,
Parameter = param,
ParameterIndex = paramIndex++
};
contexts.Add(ctx);
var marshal = new JavaMarshalManagedToNative(ctx);
param.Visit(marshal);
if (!string.IsNullOrWhiteSpace(marshal.Context.SupportBefore))
{
Write(marshal.Context.SupportBefore);
}
@params.Add(marshal.Context.Return);
}
PrimitiveType primitive;
method.ReturnType.Type.IsPrimitiveType(out primitive);
var hasReturn = primitive != PrimitiveType.Void && !(method.IsConstructor || method.IsDestructor);
if (hasReturn)
{
TypePrinter.PushContext(TypePrinterContextKind.Native);
var typeName = method.ReturnType.Visit(TypePrinter);
TypePrinter.PopContext();
Write("{0} __ret = ", typeName.Type);
}
if (method.IsConstructor)
{
Write("__object = ");
}
var unit = method.TranslationUnit;
var package = string.Join(".", GetPackageNames(unit));
Write($"{package}.{JavaNative.GetNativeLibClassName(unit)}.INSTANCE.{JavaNative.GetCMethodIdentifier(method)}(");
Write(string.Join(", ", @params));
WriteLine(");");
WriteLine("mono.embeddinator.Runtime.checkExceptions();");
foreach (var marshal in contexts)
{
if (!string.IsNullOrWhiteSpace(marshal.SupportAfter))
{
Write(marshal.SupportAfter);
}
}
if (hasReturn)
{
var ctx = new MarshalContext(Context)
{
ReturnType = method.ReturnType,
ReturnVarName = "__ret"
};
var marshal = new JavaMarshalNativeToManaged(ctx);
method.ReturnType.Visit(marshal);
if (marshal.Context.Return.ToString().Length == 0)
{
throw new System.Exception();
}
if (!string.IsNullOrWhiteSpace(marshal.Context.SupportBefore))
{
Write(marshal.Context.SupportBefore);
}
WriteLine($"return {marshal.Context.Return};");
}
}
public JavaMarshalManagedToNative(MarshalContext marshalContext)
: base(marshalContext)
{
}
public JavaMarshalNativeToManaged(MarshalContext marshalContext)
: base(marshalContext)
{
}
public JavaMarshalPrinter(MarshalContext marshalContext)
: base(marshalContext)
{
TypePrinter = new JavaTypePrinter(Context.Context);
}
