public override void LookupSymbolsInSingleBinder(LookupResult result, LookupConstraints constraints)
{
Debug.Assert(result.IsClear);
if (IsSubmission)
{
this.LookupMembersInternal(result, constraints.WithQualifier(_container));
return;
}
var imports = GetImports(constraints.BasesBeingResolved);
// first lookup members of the namespace
if ((constraints.Options & LookupOptions.NamespaceAliasesOnly) == 0 && _container != null)
{
this.LookupMembersInternal(result, constraints.WithQualifier(_container));
if (result.IsMultiViable)
{
// symbols cannot conflict with using alias names
if (constraints.MetadataName == constraints.Name && imports.IsUsingAlias(constraints.Name, constraints.OriginalBinder.IsSemanticModelBinder))
{
LanguageDiagnosticInfo diagInfo = new LanguageDiagnosticInfo(InternalErrorCode.ERR_ConflictAliasAndMember, constraints.Name, _container);
var error = new ExtendedErrorTypeSymbol((NamespaceOrTypeSymbol)null, constraints.Name, constraints.MetadataName, diagInfo, unreported: true);
result.SetFrom(LookupResult.Good(error)); // force lookup to be done w/ error symbol as result
}
return;
}
}
// next try using aliases or symbols in imported namespaces
imports.LookupSymbol(result, constraints);
}
protected override LookupConstraints AdjustConstraints(LookupConstraints constraints)
{
LookupConstraints result = base.AdjustConstraints(constraints);
if (!result.IsMemberLookup && _attributeTypeOnly)
{
result = result.WithOptions(result.Options | LookupOptions.AttributeTypeOnly);
}
return(result);
}
public override void LookupSymbolsInSingleBinder(LookupResult result, LookupConstraints constraints)
{
Debug.Assert(result.IsClear);
var specialSymbol = Compilation.GetSpecialSymbol(constraints.MetadataName);
if (specialSymbol.Kind != LanguageSymbolKind.ErrorType)
{
result.SetFrom(LookupResult.Good(specialSymbol));
}
}
public override void LookupSymbolsInSingleBinder(LookupResult result, LookupConstraints constraints)
{
var hostObjectType = GetHostObjectType();
if (hostObjectType.Kind == LanguageSymbolKind.ErrorType)
{
// The name '{0}' does not exist in the current context (are you missing a reference to assembly '{1}'?)
result.SetFrom(new LanguageDiagnosticInfo(
InternalErrorCode.ERR_NameNotInContextPossibleMissingReference,
new object[] { constraints.Name, ((MissingMetadataTypeSymbol)hostObjectType).ContainingAssembly.Identity },
ImmutableArray <Symbol> .Empty,
ImmutableArray <Location> .Empty
));
}
else
{
LookupMembersInternal(result, constraints.WithQualifier(hostObjectType));
}
}
public override void LookupSymbolsInSingleBinder(LookupResult result, LookupConstraints constraints)
{
Debug.Assert(result.IsClear);
if (this.ContainingSymbol == null)
{
return;
}
if (IsSubmission)
{
this.LookupMembersInternal(result, constraints.WithQualifier(this.ContainingSymbol));
return;
}
// first lookup members of the namespace
if ((constraints.Options & LookupOptions.NamespaceAliasesOnly) == 0)
{
this.LookupMembersInternal(result, constraints.WithQualifier(this.ContainingSymbol));
}
}
protected override void AddLookupSymbolsInfoInSingleBinder(LookupSymbolsInfo result, LookupConstraints constraints)
{
if (this.ContainingSymbol != null)
{
this.AddMemberLookupSymbolsInfo(result, constraints.WithQualifier(this.ContainingSymbol));
}
}
protected override void AddLookupSymbolsInfoInSingleBinder(LookupSymbolsInfo result, LookupConstraints constraints)
{
if (_container != null)
{
this.AddMemberLookupSymbolsInfo(result, constraints.WithQualifier(_container));
}
// If we are looking only for labels we do not need to search through the imports.
// Submission imports are handled by AddMemberLookupSymbolsInfo (above).
if (!IsSubmission && ((constraints.Options & LookupOptions.LabelsOnly) == 0))
{
var imports = GetImports(basesBeingResolved: null);
imports.AddLookupSymbolsInfo(result, constraints);
}
}
protected override void AddLookupSymbolsInfoInSingleBinder(LookupSymbolsInfo result, LookupConstraints constraints)
{
foreach (var symbol in Compilation.SourceAssembly.SpecialSymbols)
{
result.AddSymbol(symbol, symbol.Name, symbol.MetadataName);
}
}
protected override void AddLookupSymbolsInfoInSingleBinder(LookupSymbolsInfo result, LookupConstraints constraints)
{
var hostObjectType = GetHostObjectType();
if (hostObjectType.Kind != LanguageSymbolKind.ErrorType)
{
AddMemberLookupSymbolsInfo(result, constraints.WithQualifier(hostObjectType));
}
}