| public EmitNewobj ( System constructor ) : void | ||
| constructor | System | |
| Результат | void | |
public static void EmitConstruction( TracingILGenerator il, LocalBuilder target, Action<TracingILGenerator> initialCountLoadingEmitter )
{
Contract.Requires( il != null );
Contract.Requires( target != null );
Contract.Requires( initialCountLoadingEmitter != null );
// TODO: For collection, supports .ctor(IEnumerable<> other)
if ( target.LocalType.IsArray )
{
initialCountLoadingEmitter( il );
il.EmitNewarr( target.LocalType.GetElementType() );
il.EmitAnyStloc( target );
return;
}
ConstructorInfo ctor = target.LocalType.GetConstructor( _ctor_Int32_ParameterTypes );
if ( ctor != null && initialCountLoadingEmitter != null && typeof( IEnumerable ).IsAssignableFrom( target.LocalType ) )
{
if ( target.LocalType.IsValueType )
{
// Same as general method call
var capacity = il.DeclareLocal( typeof( int ), "capacity" );
initialCountLoadingEmitter( il );
il.EmitAnyStloc( capacity );
il.EmitAnyLdloca( target );
il.EmitAnyLdloc( capacity );
il.EmitCallConstructor( ctor );
}
else
{
initialCountLoadingEmitter( il );
il.EmitNewobj( ctor );
il.EmitAnyStloc( target );
}
return;
}
if ( target.LocalType.IsValueType )
{
// ValueType instance has been initialized by the runtime.
return;
}
ctor = target.LocalType.GetConstructor( Type.EmptyTypes );
if ( ctor == null )
{
throw SerializationExceptions.NewTargetDoesNotHavePublicDefaultConstructorNorInitialCapacity( target.LocalType );
}
il.EmitNewobj( ctor );
il.EmitAnyStloc( target );
}
private void Invoke( TracingILGenerator il )
{
ConstructorInfo asConsctructor;
if ( ( asConsctructor = this._method as ConstructorInfo ) != null )
{
if ( asConsctructor.DeclaringType.GetIsValueType() )
{
this._target.LoadValue( il, true );
foreach ( var argument in this._arguments )
{
argument.LoadValue( il, false );
}
il.EmitCallConstructor( asConsctructor );
// For compatibility to ref type.
this._target.LoadValue( il, false );
}
else
{
foreach ( var argument in this._arguments )
{
argument.LoadValue( il, false );
}
il.EmitNewobj( asConsctructor );
}
}
else
{
// method
if ( !this._method.IsStatic )
{
this._target.LoadValue( il, this._target.ContextType.ResolveRuntimeType().GetIsValueType() );
}
foreach ( var argument in this._arguments )
{
argument.LoadValue( il, false );
}
if ( this._method.IsStatic || this._target.ContextType.ResolveRuntimeType().GetIsValueType() )
{
il.EmitCall( this._method as MethodInfo );
}
else if ( this._interface != null )
{
// Explicit interface impl
il.EmitCallvirt(
this._interface.GetRuntimeMethod(
this._method.Name.Substring( this._method.Name.LastIndexOf( '.' ) + 1 ),
this._method.GetParameterTypes()
)
);
}
else
{
il.EmitCallvirt( this._method as MethodInfo );
}
}
}
private static void EmitNewDelegate( TracingILGenerator il, Type targetType, MethodInfo method, Action<TracingILGenerator> loadTargetEmitting, Type delegateType )
{
loadTargetEmitting( il );
if ( targetType.IsValueType )
{
il.EmitBox( targetType );
}
if ( method.IsStatic || method.IsFinal || !method.IsVirtual )
{
il.EmitLdftn( method );
}
else
{
il.EmitDup();
il.EmitLdvirtftn( method );
}
il.EmitNewobj( delegateType.GetConstructor( _delegateConstructorParameterTypes ) );
}
private void Invoke( TracingILGenerator il )
{
ConstructorInfo asConsctructor;
if ( ( asConsctructor = this._method as ConstructorInfo ) != null )
{
if ( asConsctructor.DeclaringType.GetIsValueType() )
{
this._target.LoadValue( il, true );
foreach ( var argument in this._arguments )
{
argument.LoadValue( il, false );
}
il.EmitCallConstructor( asConsctructor );
// For compatibility to ref type.
this._target.LoadValue( il, false );
}
else
{
foreach ( var argument in this._arguments )
{
argument.LoadValue( il, false );
}
il.EmitNewobj( asConsctructor );
}
}
else
{
// method
if ( !this._method.IsStatic )
{
this._target.LoadValue( il, this._target.ContextType.GetIsValueType() );
}
foreach ( var argument in this._arguments )
{
argument.LoadValue( il, false );
}
if ( this._method.IsStatic || this._target.ContextType.GetIsValueType() )
{
il.EmitCall( this._method as MethodInfo );
}
else
{
il.EmitCallvirt( this._method as MethodInfo );
}
}
}