public virtual void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
{
if (IsPartialPart)
PartialContainer.RegisterFieldForInitialization (field, expression);
if ((field.ModFlags & Modifiers.STATIC) != 0){
if (initialized_static_fields == null) {
HasStaticFieldInitializer = true;
initialized_static_fields = new List<FieldInitializer> (4);
}
initialized_static_fields.Add (expression);
} else {
if (initialized_fields == null)
initialized_fields = new List<FieldInitializer> (4);
initialized_fields.Add (expression);
}
}
public override void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
{
if ((field.ModFlags & Modifiers.STATIC) == 0) {
Report.Error (573, field.Location, "`{0}': Structs cannot have instance field initializers",
field.GetSignatureForError ());
return;
}
base.RegisterFieldForInitialization (field, expression);
}
public void ResolveFieldInitializers (BlockContext ec)
{
Debug.Assert (!IsPartialPart);
if (ec.IsStatic) {
if (initialized_static_fields == null)
return;
bool has_complex_initializer = !ec.Module.Compiler.Settings.Optimize;
int i;
ExpressionStatement [] init = new ExpressionStatement [initialized_static_fields.Count];
for (i = 0; i < initialized_static_fields.Count; ++i) {
FieldInitializer fi = initialized_static_fields [i];
ExpressionStatement s = fi.ResolveStatement (ec);
if (s == null) {
s = EmptyExpressionStatement.Instance;
} else if (!fi.IsSideEffectFree) {
has_complex_initializer = true;
}
init [i] = s;
}
for (i = 0; i < initialized_static_fields.Count; ++i) {
FieldInitializer fi = initialized_static_fields [i];
//
// Need special check to not optimize code like this
// static int a = b = 5;
// static int b = 0;
//
if (!has_complex_initializer && fi.IsDefaultInitializer)
continue;
ec.AssignmentInfoOffset += fi.AssignmentOffset;
ec.CurrentBlock.AddScopeStatement (new StatementExpression (init [i]));
}
return;
}
if (initialized_fields == null)
return;
for (int i = 0; i < initialized_fields.Count; ++i) {
FieldInitializer fi = initialized_fields [i];
//
// Clone before resolving otherwise when field initializer is needed
// in more than 1 constructor any resolve after the initial one would
// only took the resolved expression which is problem for expressions
// that generate extra expressions or code during Resolve phase
//
var cloned = fi.Clone (new CloneContext ());
ExpressionStatement s = fi.ResolveStatement (ec);
if (s == null) {
initialized_fields [i] = new FieldInitializer (fi.Field, ErrorExpression.Instance, Location.Null);
continue;
}
//
// Field is re-initialized to its default value => removed
//
if (fi.IsDefaultInitializer && Kind != MemberKind.Struct && ec.Module.Compiler.Settings.Optimize)
continue;
ec.AssignmentInfoOffset += fi.AssignmentOffset;
ec.CurrentBlock.AddScopeStatement (new StatementExpression (s));
initialized_fields [i] = (FieldInitializer) cloned;
}
}
public void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
{
if (IsPartialPart)
PartialContainer.RegisterFieldForInitialization (field, expression);
if ((field.ModFlags & Modifiers.STATIC) != 0){
if (initialized_static_fields == null) {
HasStaticFieldInitializer = true;
initialized_static_fields = new List<FieldInitializer> (4);
}
initialized_static_fields.Add (expression);
} else {
if (Kind == MemberKind.Struct) {
if (Compiler.Settings.Version != LanguageVersion.Experimental) {
Report.Error (573, expression.Location, "'{0}': Structs cannot have instance property or field initializers",
GetSignatureForError ());
}
}
if (initialized_fields == null)
initialized_fields = new List<FieldInitializer> (4);
initialized_fields.Add (expression);
}
}
public void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
{
if (IsPartialPart)
PartialContainer.RegisterFieldForInitialization (field, expression);
if ((field.ModFlags & Modifiers.STATIC) != 0){
if (initialized_static_fields == null) {
HasStaticFieldInitializer = true;
initialized_static_fields = new List<FieldInitializer> (4);
}
initialized_static_fields.Add (expression);
} else {
if (Kind == MemberKind.Struct && Compiler.Settings.Version < LanguageVersion.V_6) {
Report.FeatureIsNotAvailable (Compiler, expression.Location, "struct instance member initializer");
}
if (initialized_fields == null)
initialized_fields = new List<FieldInitializer> (4);
initialized_fields.Add (expression);
}
}
public override void RegisterFieldForInitialization (MemberCore field, FieldInitializer expression)
{
if ((field.ModFlags & Modifiers.STATIC) == 0 && !HasExplicitConstructor ()) {
Report.Error (8054, field.Location, "`{0}': Structs without explicit constructors cannot contain members with initializers",
field.GetSignatureForError ());
return;
}
base.RegisterFieldForInitialization (field, expression);
}