public MappingOperationsProcessor(MappingOperationsProcessor prototype)
{
locFrom = prototype.locFrom;
locTo = prototype.locTo;
locState = prototype.locState;
locException = prototype.locException;
compilationContext = prototype.compilationContext;
operations = prototype.operations;
storedObjects = prototype.storedObjects;
mappingConfigurator = prototype.mappingConfigurator;
objectsMapperManager = prototype.objectsMapperManager;
rootOperation = prototype.rootOperation;
staticConvertersManager = prototype.staticConvertersManager;
}
public static void BuildCreateTargetInstanceMethod(Type type, TypeBuilder typeBuilder)
{
if (ReflectionUtils.IsNullable(type))
{
type = Nullable.GetUnderlyingType(type);
}
MethodBuilder methodBuilder = typeBuilder.DefineMethod(
"CreateTargetInstance",
MethodAttributes.Assembly | MethodAttributes.Virtual,
typeof(object),
null
);
ILGenerator ilGen = methodBuilder.GetILGenerator();
CompilationContext context = new CompilationContext(ilGen);
IAstRefOrValue returnValue;
if (type.IsValueType)
{
LocalBuilder lb = ilGen.DeclareLocal(type);
new AstInitializeLocalVariable(lb).Compile(context);
returnValue =
new AstBox()
{
value = AstBuildHelper.ReadLocalRV(lb)
};
}
else
{
returnValue =
ReflectionUtils.HasDefaultConstructor(type)
?
new AstNewObject()
{
objectType = type
}
:
(IAstRefOrValue)new AstConstantNull();
}
new AstReturn()
{
returnType = type,
returnValue = returnValue
}.Compile(context);
}
public void BuildCopyImplMethod()
{
if (ReflectionUtils.IsNullable(from))
{
from = Nullable.GetUnderlyingType(from);
}
if (ReflectionUtils.IsNullable(to))
{
to = Nullable.GetUnderlyingType(to);
}
MethodBuilder methodBuilder = typeBuilder.DefineMethod(
"MapImpl",
MethodAttributes.Public | MethodAttributes.Virtual,
typeof(object),
new Type[] { typeof(object), typeof(object), typeof(object) }
);
ILGenerator ilGen = methodBuilder.GetILGenerator();
CompilationContext compilationContext = new CompilationContext(ilGen);
AstComplexNode mapperAst = new AstComplexNode();
var locFrom = ilGen.DeclareLocal(from);
var locTo = ilGen.DeclareLocal(to);
var locState = ilGen.DeclareLocal(typeof(object));
LocalBuilder locException = null;
mapperAst.nodes.Add(BuilderUtils.InitializeLocal(locFrom, 1));
mapperAst.nodes.Add(BuilderUtils.InitializeLocal(locTo, 2));
mapperAst.nodes.Add(BuilderUtils.InitializeLocal(locState, 3));
#if DEBUG
locException = compilationContext.ilGenerator.DeclareLocal(typeof(Exception));
#endif
var mappingOperations = mappingConfigurator.GetMappingOperations(from, to);
StaticConvertersManager staticConverter = mappingConfigurator.GetStaticConvertersManager();
mapperAst.nodes.Add(
new MappingOperationsProcessor()
{
locException = locException,
locFrom = locFrom,
locState = locState,
locTo = locTo,
objectsMapperManager = objectsMapperManager,
compilationContext = compilationContext,
storedObjects = storedObjects,
operations = mappingOperations,
mappingConfigurator = mappingConfigurator,
rootOperation = mappingConfigurator.GetRootMappingOperation(from, to),
staticConvertersManager = staticConverter ?? StaticConvertersManager.DefaultInstance
}.ProcessOperations()
);
mapperAst.nodes.Add(
new AstReturn()
{
returnType = typeof(object),
returnValue = AstBuildHelper.ReadLocalRV(locTo)
}
);
mapperAst.Compile(compilationContext);
}