//
// One time initialization to supply the information needed to initialize the default domain and the
// the execution environment.
//
// Remarks:
// This design intentionally restricts you to one ExecutionEnvironment per side-by-side runtime in a process.
// Aside from the dubious value of allowing multiple executionEnvironments, there is no good way to
// for this scenario:
//
// typeof(Foo).GetTypeInfo()
//
// to "lookup" a domain in order to map the RuntimeTypeHandle to a specific ExecutionEnvironment.
//
public static void InitializeExecutionDomain(ReflectionDomainSetup executionDomainSetup, ExecutionEnvironment executionEnvironment)
{
ExecutionDomain executionDomain = new ExecutionDomain(executionDomainSetup, executionEnvironment);
//@todo: This check has a race window but since this is a private api targeted by the toolchain, perhaps this is not so critical.
if (_executionDomain != null)
throw new InvalidOperationException(); // Multiple Initializes not allowed.
_executionDomain = executionDomain;
ReflectionCoreCallbacks reflectionCallbacks = new ReflectionCoreCallbacksImplementation();
ReflectionAugments.Initialize(reflectionCallbacks);
return;
}
private static void CheckIsAssignableFrom(ExecutionEnvironment executionEnvironment, Type dstType, Type srcType)
{
// byref types do not have a TypeHandle so we must treat these separately.
if (dstType.IsByRef && srcType.IsByRef)
{
if (!dstType.Equals(srcType))
throw new ArgumentException(SR.Arg_DlgtTargMeth);
}
// Enable pointers (which don't necessarily have typehandles). todo:be able to handle intptr <-> pointer, check if we need to handle
// casts via pointer where the pointer types aren't identical
if (dstType.Equals(srcType))
{
return;
}
// If assignment compatible in the normal way, allow
if (executionEnvironment.IsAssignableFrom(dstType.TypeHandle, srcType.TypeHandle))
{
return;
}
// they are not compatible yet enums can go into each other if their underlying element type is the same
// or into their equivalent integral type
Type dstTypeUnderlying = dstType;
if (dstType.GetTypeInfo().IsEnum)
{
dstTypeUnderlying = Enum.GetUnderlyingType(dstType);
}
Type srcTypeUnderlying = srcType;
if (srcType.GetTypeInfo().IsEnum)
{
srcTypeUnderlying = Enum.GetUnderlyingType(srcType);
}
if (dstTypeUnderlying.Equals(srcTypeUnderlying))
{
return;
}
throw new ArgumentException(SR.Arg_DlgtTargMeth);
}
internal ExecutionDomain(ReflectionDomainSetup executionDomainSetup, ExecutionEnvironment executionEnvironment)
{
ExecutionEnvironment = executionEnvironment;
ReflectionDomainSetup = executionDomainSetup;
}
internal ExecutionDomain(ReflectionDomainSetup executionDomainSetup, ExecutionEnvironment executionEnvironment)
: base(executionDomainSetup, 0)
{
this.ExecutionEnvironment = executionEnvironment;
}
internal ExecutionDomain(ReflectionDomainSetup executionDomainSetup, ExecutionEnvironment executionEnvironment)
{
ExecutionEnvironment = executionEnvironment;
ReflectionDomainSetup = executionDomainSetup;
}
internal ExecutionDomain(ReflectionDomainSetup executionDomainSetup, ExecutionEnvironment executionEnvironment)
: base(executionDomainSetup, 0)
{
this.ExecutionEnvironment = executionEnvironment;
}
//
// One time initialization to supply the information needed to initialize the default domain and the
// the execution environment.
//
// Remarks:
// This design intentionally restricts you to one ExecutionEnvironment per side-by-side runtime in a process.
// Aside from the dubious value of allowing multiple executionEnvironments, there is no good way to
// for this scenario:
//
// typeof(Foo).GetTypeInfo()
//
// to "lookup" a domain in order to map the RuntimeTypeHandle to a specific ExecutionEnvironment.
//
public static void InitializeExecutionDomain(ReflectionDomainSetup executionDomainSetup, ExecutionEnvironment executionEnvironment)
{
ExecutionDomain executionDomain = new ExecutionDomain(executionDomainSetup, executionEnvironment);
//@todo: This check has a race window but since this is a private api targeted by the toolchain, perhaps this is not so critical.
if (_executionDomain != null)
{
throw new InvalidOperationException(); // Multiple Initializes not allowed.
}
_executionDomain = executionDomain;
ReflectionCoreCallbacks reflectionCallbacks = new ReflectionCoreCallbacksImplementation();
ReflectionAugments.Initialize(reflectionCallbacks);
return;
}