public SymbolLoader()
{
GlobalSymbolContext globalSymbols = new GlobalSymbolContext();
PredefinedMembers = new PredefinedMembers(this);
ErrorContext = new ErrorHandling(globalSymbols);
GlobalSymbolContext = globalSymbols;
Debug.Assert(GlobalSymbolContext != null);
}
public SymbolLoader(
GlobalSymbolContext globalSymbols,
ErrorHandling errorContext
)
{
_nameManager = globalSymbols.GetNameManager();
PredefinedMembers = new PredefinedMembers(this);
ErrorContext = errorContext;
GlobalSymbolContext = globalSymbols;
Debug.Assert(GlobalSymbolContext != null);
}
// Create an expr for new T?(exprSrc) where T is exprSrc.type.
private static ExprCall BindNubNew(Expr exprSrc)
{
Debug.Assert(exprSrc != null);
NullableType pNubSourceType = TypeManager.GetNullable(exprSrc.Type);
AggregateType pSourceType = pNubSourceType.GetAts();
MethodSymbol meth = PredefinedMembers.GetMethod(PREDEFMETH.PM_G_OPTIONAL_CTOR);
MethWithInst methwithinst = new MethWithInst(meth, pSourceType, TypeArray.Empty);
ExprMemberGroup memgroup = ExprFactory.CreateMemGroup(null, methwithinst);
return(ExprFactory.CreateCall(EXPRFLAG.EXF_NEWOBJCALL | EXPRFLAG.EXF_CANTBENULL, pNubSourceType, exprSrc, memgroup, methwithinst));
}
public SymbolLoader(
GlobalSymbolContext globalSymbols,
UserStringBuilder userStringBuilder,
ErrorHandling errorContext
)
{
_nameManager = globalSymbols.GetNameManager();
PredefinedMembers = new PredefinedMembers(this);
ErrorContext = errorContext;
GlobalSymbolContext = globalSymbols;
Debug.Assert(GlobalSymbolContext != null);
}
// Create an expr for exprSrc.Value where exprSrc.type is a NullableType.
private static Expr BindNubValue(Expr exprSrc)
{
Debug.Assert(exprSrc != null && exprSrc.Type is NullableType);
// For new T?(x), the answer is x.
if (IsNullableConstructor(exprSrc, out ExprCall call))
{
Expr args = call.OptionalArguments;
Debug.Assert(args != null && !(args is ExprList));
return(args);
}
NullableType nubSrc = (NullableType)exprSrc.Type;
CType typeBase = nubSrc.UnderlyingType;
AggregateType ats = nubSrc.GetAts();
PropertySymbol prop = PredefinedMembers.GetProperty(PREDEFPROP.PP_G_OPTIONAL_VALUE);
PropWithType pwt = new PropWithType(prop, ats);
MethPropWithInst mpwi = new MethPropWithInst(prop, ats);
ExprMemberGroup pMemGroup = ExprFactory.CreateMemGroup(exprSrc, mpwi);
return(ExprFactory.CreateProperty(typeBase, null, null, pMemGroup, pwt, null));
}
private static MethodSymbol GetPreDefMethod(PREDEFMETH pdm) => PredefinedMembers.GetMethod(pdm);