> GetAnalyzerTypeNameMap(
string fullPath,
Type attributeType,
AttributeLanguagesFunc languagesFunc
)
{
using var assembly = AssemblyMetadata.CreateFromFile(fullPath);
// This is longer than strictly necessary to avoid thrashing the GC with string allocations
// in the call to GetFullyQualifiedTypeNames. Specifically, this checks for the presence of
// supported languages prior to creating the type names.
var typeNameMap =
from module in assembly.GetModules()
from typeDefHandle in module.MetadataReader.TypeDefinitions
let typeDef = module.MetadataReader.GetTypeDefinition(typeDefHandle)
let supportedLanguages = GetSupportedLanguages(
typeDef,
module.Module,
attributeType,
languagesFunc
)
where supportedLanguages.Any()
let typeName = GetFullyQualifiedTypeName(typeDef, module.Module)
from supportedLanguage in supportedLanguages
group typeName by supportedLanguage;
return(typeNameMap.ToImmutableSortedDictionary(
g => g.Key,
g => g.ToImmutableSortedSet(StringComparer.OrdinalIgnoreCase),
StringComparer.OrdinalIgnoreCase
));
}
internal Extensions(AnalyzerFileReference reference, AttributePredicate attributePredicate, AttributeLanguagesFunc languagesFunc)
{
_reference = reference;
_attributePredicate = attributePredicate;
_languagesFunc = languagesFunc;
_lazyAllExtensions = default;
_lazyExtensionsPerLanguage = ImmutableDictionary <string, ImmutableArray <TExtension> > .Empty;
}
internal Extensions(AnalyzerFileReference reference, Type attributeType, AttributeLanguagesFunc languagesFunc, bool allowNetFramework)
{
_reference = reference;
_attributeType = attributeType;
_languagesFunc = languagesFunc;
_allowNetFramework = allowNetFramework;
_lazyAllExtensions = default;
_lazyExtensionsPerLanguage = ImmutableDictionary <string, ImmutableArray <TExtension> > .Empty;
}
private static IEnumerable <string> GetSupportedLanguages(
TypeDefinition typeDef,
PEModule peModule,
Type attributeType,
AttributeLanguagesFunc languagesFunc
)
{
IEnumerable <string>?result = null;
foreach (CustomAttributeHandle customAttrHandle in typeDef.GetCustomAttributes())
{
if (
peModule.IsTargetAttribute(
customAttrHandle,
attributeType.Namespace !,
attributeType.Name,
ctor: out _
)
)
{
if (
languagesFunc(peModule, customAttrHandle) is { } attributeSupportedLanguages
)
{
if (result is null)
{
result = attributeSupportedLanguages;
}
else
{
// This is a slow path, but only occurs if a single type has multiple
// DiagnosticAnalyzerAttribute instances applied to it.
result = result.Concat(attributeSupportedLanguages);
}
}
}
}
return(result ?? SpecializedCollections.EmptyEnumerable <string>());
}
private static IEnumerable <string> GetSupportedLanguages(TypeDefinition typeDef, PEModule peModule, Type attributeType, AttributeLanguagesFunc languagesFunc)
{
var attributeLanguagesList = from customAttrHandle in typeDef.GetCustomAttributes()
where peModule.IsTargetAttribute(customAttrHandle, attributeType.Namespace !, attributeType.Name, ctor: out _)
let attributeSupportedLanguages = languagesFunc(peModule, customAttrHandle)
where attributeSupportedLanguages != null
select attributeSupportedLanguages;
return(attributeLanguagesList.SelectMany(x => x));
}
private static IEnumerable <string> GetSupportedLanguages(TypeDefinition typeDef, PEModule peModule, AttributePredicate attributePredicate, AttributeLanguagesFunc languagesFunc)
{
var attributeLanguagesList = from customAttrHandle in typeDef.GetCustomAttributes()
where attributePredicate(peModule, customAttrHandle)
let attributeSupportedLanguages = languagesFunc(peModule, customAttrHandle)
where attributeSupportedLanguages != null
select attributeSupportedLanguages;
return(attributeLanguagesList.SelectMany(x => x));
}
private static IEnumerable <string> GetSupportedLanguages(TypeDefinition typeDef, PEModule peModule, Type attributeType, AttributeLanguagesFunc languagesFunc)
{
foreach (CustomAttributeHandle customAttrHandle in typeDef.GetCustomAttributes())
{
if (peModule.IsTargetAttribute(customAttrHandle, attributeType.Namespace !, attributeType.Name, ctor: out _))
{
IEnumerable <string>?attributeSupportedLanguages = languagesFunc(peModule, customAttrHandle);
if (attributeSupportedLanguages != null)
{
foreach (string item in attributeSupportedLanguages)
{
yield return(item);
}
}
}
}
}
